use crate::*;
use std::collections::{HashMap, HashSet};

#[spacetimedb::table(
    accessor = custom_world_profile,
    index(accessor = by_custom_world_profile_owner_user_id, btree(columns = [owner_user_id])),
    index(
        accessor = by_custom_world_profile_publication_status,
        btree(columns = [publication_status])
    )
)]
pub struct CustomWorldProfile {
    #[primary_key]
    profile_id: String,
    // 当前 profile 承接 library / publish / enter-world 的正式世界工件真相。
    owner_user_id: String,
    // 作品公开编号是稳定分享键，第一次发布时分配，后续重复发布沿用。
    public_work_code: Option<String>,
    // 作者公开陶泥号在发布时固化到作品真相，供广场读模型与搜索结果直接展示。
    author_public_user_code: Option<String>,
    source_agent_session_id: Option<String>,
    publication_status: CustomWorldPublicationStatus,
    world_name: String,
    subtitle: String,
    summary_text: String,
    theme_mode: CustomWorldThemeMode,
    cover_image_src: Option<String>,
    profile_payload_json: String,
    playable_npc_count: u32,
    landmark_count: u32,
    // 公开消费计数随 profile 真相持久化，发布、编辑和取消发布都不能重置。
    #[default(0)]
    play_count: u32,
    #[default(0)]
    remix_count: u32,
    #[default(0)]
    like_count: u32,
    author_display_name: String,
    published_at: Option<Timestamp>,
    // 软删除后保留 profile 真相，供审计与幂等删除使用。
    deleted_at: Option<Timestamp>,
    created_at: Timestamp,
    updated_at: Timestamp,
}

#[spacetimedb::table(
    accessor = custom_world_session,
    index(accessor = by_custom_world_session_owner_user_id, btree(columns = [owner_user_id]))
)]
pub struct CustomWorldSession {
    #[primary_key]
    session_id: String,
    // 这张表只承接旧 custom-world/sessions 传统问答流，不和 agent 会话混存。
    owner_user_id: String,
    generation_mode: CustomWorldGenerationMode,
    status: CustomWorldSessionStatus,
    setting_text: String,
    creator_intent_json: Option<String>,
    question_snapshot_json: String,
    result_payload_json: Option<String>,
    last_error_message: Option<String>,
    created_at: Timestamp,
    updated_at: Timestamp,
}

#[spacetimedb::table(
    accessor = custom_world_agent_session,
    index(
        accessor = by_custom_world_agent_session_owner_user_id,
        btree(columns = [owner_user_id])
    ),
    index(accessor = by_custom_world_agent_session_stage, btree(columns = [stage]))
)]
pub struct CustomWorldAgentSession {
    #[primary_key]
    session_id: String,
    // Agent 会话只保留会话级聚合字段，消息、操作、卡片都拆到独立表。
    owner_user_id: String,
    seed_text: String,
    current_turn: u32,
    progress_percent: u32,
    stage: RpgAgentStage,
    focus_card_id: Option<String>,
    anchor_content_json: String,
    creator_intent_json: Option<String>,
    creator_intent_readiness_json: String,
    anchor_pack_json: Option<String>,
    lock_state_json: Option<String>,
    draft_profile_json: Option<String>,
    last_assistant_reply: Option<String>,
    publish_gate_json: Option<String>,
    result_preview_json: Option<String>,
    pending_clarifications_json: String,
    quality_findings_json: String,
    suggested_actions_json: String,
    recommended_replies_json: String,
    asset_coverage_json: String,
    checkpoints_json: String,
    created_at: Timestamp,
    updated_at: Timestamp,
}

#[spacetimedb::table(
    accessor = custom_world_agent_message,
    index(accessor = by_custom_world_agent_message_session_id, btree(columns = [session_id]))
)]
pub struct CustomWorldAgentMessage {
    #[primary_key]
    message_id: String,
    // 消息流水单独成表，避免继续塞回 session 大 JSON。
    session_id: String,
    role: RpgAgentMessageRole,
    kind: RpgAgentMessageKind,
    text: String,
    related_operation_id: Option<String>,
    created_at: Timestamp,
}

#[derive(Clone)]
#[spacetimedb::table(
    accessor = custom_world_agent_operation,
    index(accessor = by_custom_world_agent_operation_session_id, btree(columns = [session_id]))
)]
pub struct CustomWorldAgentOperation {
    #[primary_key]
    operation_id: String,
    // 异步操作单独建表，为 message stream / operation query 提供真相源。
    session_id: String,
    operation_type: RpgAgentOperationType,
    status: RpgAgentOperationStatus,
    phase_label: String,
    phase_detail: String,
    progress: u32,
    error_message: Option<String>,
    created_at: Timestamp,
    updated_at: Timestamp,
}

#[spacetimedb::table(
    accessor = custom_world_draft_card,
    index(accessor = by_custom_world_draft_card_session_id, btree(columns = [session_id])),
    index(accessor = by_custom_world_draft_card_kind, btree(columns = [kind]))
)]
pub struct CustomWorldDraftCard {
    #[primary_key]
    card_id: String,
    // 卡片实体从 agent session 拆出，后续 detail / update 都直接对这张表操作。
    session_id: String,
    kind: RpgAgentDraftCardKind,
    status: RpgAgentDraftCardStatus,
    title: String,
    subtitle: String,
    summary: String,
    linked_ids_json: String,
    warning_count: u32,
    asset_status: Option<CustomWorldRoleAssetStatus>,
    asset_status_label: Option<String>,
    detail_payload_json: Option<String>,
    created_at: Timestamp,
    updated_at: Timestamp,
}

#[spacetimedb::table(
    accessor = custom_world_gallery_entry,
    public,
    index(accessor = by_custom_world_gallery_owner_user_id, btree(columns = [owner_user_id])),
    index(accessor = by_custom_world_gallery_theme_mode, btree(columns = [theme_mode])),
    index(accessor = by_custom_world_gallery_public_work_code, btree(columns = [public_work_code]))
)]
pub struct CustomWorldGalleryEntry {
    #[primary_key]
    profile_id: String,
    // 画廊是公开订阅读模型，不再运行时从 profile 即席拼装。
    owner_user_id: String,
    public_work_code: String,
    author_public_user_code: String,
    author_display_name: String,
    world_name: String,
    subtitle: String,
    summary_text: String,
    cover_image_src: Option<String>,
    theme_mode: CustomWorldThemeMode,
    playable_npc_count: u32,
    landmark_count: u32,
    // 画廊读模型直接同步互动计数，避免前端临时把评分或游玩数改名成点赞。
    #[default(0)]
    play_count: u32,
    #[default(0)]
    remix_count: u32,
    #[default(0)]
    like_count: u32,
    published_at: Timestamp,
    updated_at: Timestamp,
}
// Agent 会话首版只负责把可持久化创作状态落进 SpacetimeDB，LLM 采集与卡片生成后续再接入。
#[spacetimedb::procedure]
pub fn create_custom_world_agent_session(
    ctx: &mut ProcedureContext,
    input: CustomWorldAgentSessionCreateInput,
) -> CustomWorldAgentSessionProcedureResult {
    match ctx.try_with_tx(|tx| create_custom_world_agent_session_tx(tx, input.clone())) {
        Ok(session) => CustomWorldAgentSessionProcedureResult {
            ok: true,
            session: Some(session),
            error_message: None,
        },
        Err(message) => CustomWorldAgentSessionProcedureResult {
            ok: false,
            session: None,
            error_message: Some(message),
        },
    }
}

// Stage 6 读取拆表后的最小 Agent session snapshot，供 Axum 兼容旧前端 contract。
#[spacetimedb::procedure]
pub fn get_custom_world_agent_session(
    ctx: &mut ProcedureContext,
    input: CustomWorldAgentSessionGetInput,
) -> CustomWorldAgentSessionProcedureResult {
    match ctx.try_with_tx(|tx| get_custom_world_agent_session_tx(tx, input.clone())) {
        Ok(session) => CustomWorldAgentSessionProcedureResult {
            ok: true,
            session: Some(session),
            error_message: None,
        },
        Err(message) => CustomWorldAgentSessionProcedureResult {
            ok: false,
            session: None,
            error_message: Some(message),
        },
    }
}

#[spacetimedb::procedure]
pub fn delete_custom_world_agent_session(
    ctx: &mut ProcedureContext,
    input: CustomWorldAgentSessionGetInput,
) -> CustomWorldWorksListResult {
    match ctx.try_with_tx(|tx| delete_custom_world_agent_session_tx(tx, input.clone())) {
        Ok(items) => CustomWorldWorksListResult {
            ok: true,
            items,
            error_message: None,
        },
        Err(message) => CustomWorldWorksListResult {
            ok: false,
            items: Vec::new(),
            error_message: Some(message),
        },
    }
}

#[spacetimedb::procedure]
pub fn submit_custom_world_agent_message(
    ctx: &mut ProcedureContext,
    input: CustomWorldAgentMessageSubmitInput,
) -> CustomWorldAgentOperationProcedureResult {
    match ctx.try_with_tx(|tx| submit_custom_world_agent_message_tx(tx, input.clone())) {
        Ok(operation) => CustomWorldAgentOperationProcedureResult {
            ok: true,
            operation: Some(operation),
            error_message: None,
        },
        Err(message) => CustomWorldAgentOperationProcedureResult {
            ok: false,
            operation: None,
            error_message: Some(message),
        },
    }
}

#[spacetimedb::procedure]
pub fn finalize_custom_world_agent_message_turn(
    ctx: &mut ProcedureContext,
    input: CustomWorldAgentMessageFinalizeInput,
) -> CustomWorldAgentOperationProcedureResult {
    match ctx.try_with_tx(|tx| finalize_custom_world_agent_message_turn_tx(tx, input.clone())) {
        Ok(operation) => CustomWorldAgentOperationProcedureResult {
            ok: true,
            operation: Some(operation),
            error_message: None,
        },
        Err(message) => CustomWorldAgentOperationProcedureResult {
            ok: false,
            operation: None,
            error_message: Some(message),
        },
    }
}

#[spacetimedb::procedure]
pub fn get_custom_world_agent_operation(
    ctx: &mut ProcedureContext,
    input: CustomWorldAgentOperationGetInput,
) -> CustomWorldAgentOperationProcedureResult {
    match ctx.try_with_tx(|tx| get_custom_world_agent_operation_tx(tx, input.clone())) {
        Ok(operation) => CustomWorldAgentOperationProcedureResult {
            ok: true,
            operation: Some(operation),
            error_message: None,
        },
        Err(message) => CustomWorldAgentOperationProcedureResult {
            ok: false,
            operation: None,
            error_message: Some(message),
        },
    }
}

#[spacetimedb::procedure]
pub fn upsert_custom_world_agent_operation_progress(
    ctx: &mut ProcedureContext,
    input: CustomWorldAgentOperationProgressInput,
) -> CustomWorldAgentOperationProcedureResult {
    match ctx.try_with_tx(|tx| upsert_custom_world_agent_operation_progress_tx(tx, input.clone())) {
        Ok(operation) => CustomWorldAgentOperationProcedureResult {
            ok: true,
            operation: Some(operation),
            error_message: None,
        },
        Err(message) => CustomWorldAgentOperationProcedureResult {
            ok: false,
            operation: None,
            error_message: Some(message),
        },
    }
}
fn create_custom_world_agent_session_tx(
    ctx: &ReducerContext,
    input: CustomWorldAgentSessionCreateInput,
) -> Result<CustomWorldAgentSessionSnapshot, String> {
    validate_custom_world_agent_session_create_input(&input).map_err(|error| error.to_string())?;

    if ctx
        .db
        .custom_world_agent_session()
        .session_id()
        .find(&input.session_id)
        .is_some()
    {
        return Err("custom_world_agent_session.session_id 已存在".to_string());
    }
    if ctx
        .db
        .custom_world_agent_message()
        .message_id()
        .find(&input.welcome_message_id)
        .is_some()
    {
        return Err("custom_world_agent_message.message_id 已存在".to_string());
    }

    let created_at = Timestamp::from_micros_since_unix_epoch(input.created_at_micros);
    ctx.db
        .custom_world_agent_session()
        .insert(CustomWorldAgentSession {
            session_id: input.session_id.clone(),
            owner_user_id: input.owner_user_id.clone(),
            seed_text: input.seed_text.trim().to_string(),
            current_turn: 0,
            progress_percent: 0,
            stage: RpgAgentStage::CollectingIntent,
            focus_card_id: None,
            anchor_content_json: input.anchor_content_json.clone(),
            creator_intent_json: input.creator_intent_json.clone(),
            creator_intent_readiness_json: input.creator_intent_readiness_json.clone(),
            anchor_pack_json: input.anchor_pack_json.clone(),
            lock_state_json: input.lock_state_json.clone(),
            draft_profile_json: input.draft_profile_json.clone(),
            last_assistant_reply: Some(input.welcome_message_text.trim().to_string()),
            publish_gate_json: None,
            result_preview_json: None,
            pending_clarifications_json: input.pending_clarifications_json.clone(),
            quality_findings_json: input.quality_findings_json.clone(),
            suggested_actions_json: input.suggested_actions_json.clone(),
            recommended_replies_json: input.recommended_replies_json.clone(),
            asset_coverage_json: input.asset_coverage_json.clone(),
            checkpoints_json: input.checkpoints_json.clone(),
            created_at,
            updated_at: created_at,
        });
    ctx.db
        .custom_world_agent_message()
        .insert(CustomWorldAgentMessage {
            message_id: input.welcome_message_id,
            session_id: input.session_id.clone(),
            role: RpgAgentMessageRole::Assistant,
            kind: RpgAgentMessageKind::Chat,
            text: input.welcome_message_text.trim().to_string(),
            related_operation_id: None,
            created_at,
        });

    get_custom_world_agent_session_tx(
        ctx,
        CustomWorldAgentSessionGetInput {
            session_id: input.session_id,
            owner_user_id: input.owner_user_id,
        },
    )
}

fn get_custom_world_agent_session_tx(
    ctx: &ReducerContext,
    input: CustomWorldAgentSessionGetInput,
) -> Result<CustomWorldAgentSessionSnapshot, String> {
    validate_custom_world_agent_session_get_input(&input).map_err(|error| error.to_string())?;

    let session = ctx
        .db
        .custom_world_agent_session()
        .session_id()
        .find(&input.session_id)
        .filter(|row| row.owner_user_id == input.owner_user_id)
        .ok_or_else(|| "custom_world_agent_session 不存在".to_string())?;

    Ok(build_custom_world_agent_session_snapshot(ctx, &session))
}

fn delete_custom_world_agent_session_tx(
    ctx: &ReducerContext,
    input: CustomWorldAgentSessionGetInput,
) -> Result<Vec<CustomWorldWorkSummarySnapshot>, String> {
    validate_custom_world_agent_session_get_input(&input).map_err(|error| error.to_string())?;

    let session = ctx
        .db
        .custom_world_agent_session()
        .session_id()
        .find(&input.session_id)
        .filter(|row| row.owner_user_id == input.owner_user_id)
        .ok_or_else(|| "custom_world_agent_session 不存在".to_string())?;

    if session.stage == RpgAgentStage::Published {
        let published_profile = ctx
            .db
            .custom_world_profile()
            .by_custom_world_profile_owner_user_id()
            .filter(&input.owner_user_id)
            .find(|row| {
                row.owner_user_id == input.owner_user_id
                    && row.source_agent_session_id.as_deref() == Some(input.session_id.as_str())
                    && row.deleted_at.is_none()
            })
            .ok_or_else(|| "已发布 RPG 作品缺少关联 profile，无法删除".to_string())?;

        // 作品卡可能只携带源 Agent sessionId。这里把“按 session 删除已发布作品”
        // 收敛为 profile 软删除，避免前端误入草稿删除接口时继续暴露 procedure 分叉。
        delete_custom_world_profile_record(
            ctx,
            CustomWorldProfileDeleteInput {
                profile_id: published_profile.profile_id,
                owner_user_id: input.owner_user_id.clone(),
                deleted_at_micros: ctx.timestamp.to_micros_since_unix_epoch(),
            },
        )?;

        return list_custom_world_work_snapshots(
            ctx,
            CustomWorldWorksListInput {
                owner_user_id: input.owner_user_id,
            },
        );
    }

    // 删除纯 Agent 草稿时同步清理消息、操作与草稿卡，避免作品列表消失后残留孤儿数据。
    ctx.db
        .custom_world_agent_session()
        .session_id()
        .delete(&session.session_id);
    for message in ctx
        .db
        .custom_world_agent_message()
        .by_custom_world_agent_message_session_id()
        .filter(&input.session_id)
        .collect::<Vec<_>>()
    {
        ctx.db
            .custom_world_agent_message()
            .message_id()
            .delete(&message.message_id);
    }
    for operation in ctx
        .db
        .custom_world_agent_operation()
        .by_custom_world_agent_operation_session_id()
        .filter(&input.session_id)
        .collect::<Vec<_>>()
    {
        ctx.db
            .custom_world_agent_operation()
            .operation_id()
            .delete(&operation.operation_id);
    }
    for card in ctx
        .db
        .custom_world_draft_card()
        .by_custom_world_draft_card_session_id()
        .filter(&input.session_id)
        .collect::<Vec<_>>()
    {
        ctx.db
            .custom_world_draft_card()
            .card_id()
            .delete(&card.card_id);
    }

    list_custom_world_work_snapshots(
        ctx,
        CustomWorldWorksListInput {
            owner_user_id: input.owner_user_id,
        },
    )
}

fn submit_custom_world_agent_message_tx(
    ctx: &ReducerContext,
    input: CustomWorldAgentMessageSubmitInput,
) -> Result<CustomWorldAgentOperationSnapshot, String> {
    validate_custom_world_agent_message_submit_input(&input).map_err(|error| error.to_string())?;

    if input.user_message_text.contains("__phase1_force_fail__") {
        return Err("forced failure".to_string());
    }

    let _session = ctx
        .db
        .custom_world_agent_session()
        .session_id()
        .find(&input.session_id)
        .filter(|row| row.owner_user_id == input.owner_user_id)
        .ok_or_else(|| "custom_world_agent_session 不存在".to_string())?;

    if ctx
        .db
        .custom_world_agent_message()
        .message_id()
        .find(&input.user_message_id)
        .is_some()
    {
        return Err("custom_world_agent_message.message_id 已存在".to_string());
    }
    if ctx
        .db
        .custom_world_agent_operation()
        .operation_id()
        .find(&input.operation_id)
        .is_some()
    {
        return Err("custom_world_agent_operation.operation_id 已存在".to_string());
    }

    let submitted_at = Timestamp::from_micros_since_unix_epoch(input.submitted_at_micros);
    let user_message_text = input.user_message_text.trim().to_string();

    ctx.db
        .custom_world_agent_message()
        .insert(CustomWorldAgentMessage {
            message_id: input.user_message_id,
            session_id: input.session_id.clone(),
            role: RpgAgentMessageRole::User,
            kind: RpgAgentMessageKind::Chat,
            text: user_message_text,
            related_operation_id: Some(input.operation_id.clone()),
            created_at: submitted_at,
        });

    ctx.db
        .custom_world_agent_operation()
        .insert(CustomWorldAgentOperation {
            operation_id: input.operation_id.clone(),
            session_id: input.session_id.clone(),
            operation_type: RpgAgentOperationType::ProcessMessage,
            status: RpgAgentOperationStatus::Running,
            phase_label: "消息处理中".to_string(),
            phase_detail: "已记录用户消息，等待大模型生成本轮回复。".to_string(),
            progress: 10,
            error_message: None,
            created_at: submitted_at,
            updated_at: submitted_at,
        });

    get_custom_world_agent_operation_tx(
        ctx,
        CustomWorldAgentOperationGetInput {
            session_id: input.session_id,
            owner_user_id: input.owner_user_id,
            operation_id: input.operation_id,
        },
    )
}

fn get_custom_world_agent_operation_tx(
    ctx: &ReducerContext,
    input: CustomWorldAgentOperationGetInput,
) -> Result<CustomWorldAgentOperationSnapshot, String> {
    validate_custom_world_agent_operation_get_input(&input).map_err(|error| error.to_string())?;

    ctx.db
        .custom_world_agent_session()
        .session_id()
        .find(&input.session_id)
        .filter(|row| row.owner_user_id == input.owner_user_id)
        .ok_or_else(|| "custom_world_agent_session 不存在".to_string())?;

    let operation = ctx
        .db
        .custom_world_agent_operation()
        .operation_id()
        .find(&input.operation_id)
        .filter(|row| row.session_id == input.session_id)
        .ok_or_else(|| "custom_world_agent_operation 不存在".to_string())?;

    Ok(build_custom_world_agent_operation_snapshot(&operation))
}

fn upsert_custom_world_agent_operation_progress_tx(
    ctx: &ReducerContext,
    input: CustomWorldAgentOperationProgressInput,
) -> Result<CustomWorldAgentOperationSnapshot, String> {
    validate_custom_world_agent_operation_progress_input(&input)
        .map_err(|error| error.to_string())?;
    ctx.db
        .custom_world_agent_session()
        .session_id()
        .find(&input.session_id)
        .filter(|row| row.owner_user_id == input.owner_user_id)
        .ok_or_else(|| "custom_world_agent_session 不存在".to_string())?;

    let timestamp = Timestamp::from_micros_since_unix_epoch(input.updated_at_micros);
    let operation = if let Some(current) = ctx
        .db
        .custom_world_agent_operation()
        .operation_id()
        .find(&input.operation_id)
    {
        if current.session_id != input.session_id {
            return Err("custom_world_agent_operation.session_id 不匹配".to_string());
        }
        let next = rebuild_custom_world_agent_operation_row(
            &current,
            CustomWorldAgentOperationPatch {
                status: Some(input.operation_status),
                phase_label: Some(input.phase_label.clone()),
                phase_detail: Some(input.phase_detail.clone()),
                progress: Some(input.operation_progress),
                error_message: Some(input.error_message.clone()),
                updated_at_micros: Some(input.updated_at_micros),
            },
        )?;
        replace_custom_world_agent_operation(ctx, &current, next.clone());
        next
    } else {
        ctx.db
            .custom_world_agent_operation()
            .insert(CustomWorldAgentOperation {
                operation_id: input.operation_id.clone(),
                session_id: input.session_id.clone(),
                operation_type: input.operation_type,
                status: input.operation_status,
                phase_label: input.phase_label.clone(),
                phase_detail: input.phase_detail.clone(),
                progress: input.operation_progress,
                error_message: input.error_message.clone(),
                created_at: timestamp,
                updated_at: timestamp,
            })
    };

    Ok(build_custom_world_agent_operation_snapshot(&operation))
}

fn finalize_custom_world_agent_message_turn_tx(
    ctx: &ReducerContext,
    input: CustomWorldAgentMessageFinalizeInput,
) -> Result<CustomWorldAgentOperationSnapshot, String> {
    validate_custom_world_agent_message_finalize_input(&input)
        .map_err(|error| error.to_string())?;

    let session = ctx
        .db
        .custom_world_agent_session()
        .session_id()
        .find(&input.session_id)
        .filter(|row| row.owner_user_id == input.owner_user_id)
        .ok_or_else(|| "custom_world_agent_session 不存在".to_string())?;

    let operation = ctx
        .db
        .custom_world_agent_operation()
        .operation_id()
        .find(&input.operation_id)
        .filter(|row| row.session_id == input.session_id)
        .ok_or_else(|| "custom_world_agent_operation 不存在".to_string())?;

    let updated_at = Timestamp::from_micros_since_unix_epoch(input.updated_at_micros);

    let next_session = if input.operation_status == RpgAgentOperationStatus::Failed {
        rebuild_custom_world_agent_session_row(
            &session,
            CustomWorldAgentSessionPatch {
                updated_at_micros: Some(input.updated_at_micros),
                ..CustomWorldAgentSessionPatch::default()
            },
        )?
    } else {
        let assistant_message_id = input.assistant_message_id.clone().ok_or_else(|| {
            "custom_world_agent_message.assistant_message_id 不能为空".to_string()
        })?;
        let assistant_reply_text = input
            .assistant_reply_text
            .clone()
            .ok_or_else(|| "custom_world_agent_message.text 不能为空".to_string())?;

        if ctx
            .db
            .custom_world_agent_message()
            .message_id()
            .find(&assistant_message_id)
            .is_some()
        {
            return Err("custom_world_agent_message.assistant_message_id 已存在".to_string());
        }

        ctx.db
            .custom_world_agent_message()
            .insert(CustomWorldAgentMessage {
                message_id: assistant_message_id,
                session_id: input.session_id.clone(),
                role: RpgAgentMessageRole::Assistant,
                kind: RpgAgentMessageKind::Chat,
                text: assistant_reply_text.clone(),
                related_operation_id: Some(input.operation_id.clone()),
                created_at: updated_at,
            });

        rebuild_custom_world_agent_session_row(
            &session,
            CustomWorldAgentSessionPatch {
                current_turn: Some(session.current_turn.saturating_add(1)),
                progress_percent: Some(input.progress_percent),
                stage: Some(input.stage),
                focus_card_id: Some(input.focus_card_id.clone()),
                anchor_content_json: Some(input.anchor_content_json.clone()),
                creator_intent_json: Some(input.creator_intent_json.clone()),
                creator_intent_readiness_json: Some(input.creator_intent_readiness_json.clone()),
                anchor_pack_json: Some(input.anchor_pack_json.clone()),
                draft_profile_json: Some(input.draft_profile_json.clone()),
                last_assistant_reply: Some(Some(assistant_reply_text)),
                pending_clarifications_json: Some(input.pending_clarifications_json.clone()),
                quality_findings_json: Some(input.quality_findings_json.clone()),
                suggested_actions_json: Some(input.suggested_actions_json.clone()),
                recommended_replies_json: Some(input.recommended_replies_json.clone()),
                asset_coverage_json: Some(input.asset_coverage_json.clone()),
                updated_at_micros: Some(input.updated_at_micros),
                ..CustomWorldAgentSessionPatch::default()
            },
        )?
    };
    replace_custom_world_agent_session(ctx, &session, next_session);

    let next_operation = rebuild_custom_world_agent_operation_row(
        &operation,
        CustomWorldAgentOperationPatch {
            status: Some(input.operation_status),
            phase_label: Some(input.phase_label.clone()),
            phase_detail: Some(input.phase_detail.clone()),
            progress: Some(input.operation_progress),
            error_message: Some(input.error_message.clone()),
            updated_at_micros: Some(input.updated_at_micros),
        },
    )?;
    replace_custom_world_agent_operation(ctx, &operation, next_operation.clone());

    Ok(build_custom_world_agent_operation_snapshot(&next_operation))
}
// M5 Stage 2 先把 library profile upsert 固定成最小正式写入口；已发布作品在这里同步刷新 gallery 投影。
#[spacetimedb::reducer]
pub fn upsert_custom_world_profile(
    ctx: &ReducerContext,
    input: CustomWorldProfileUpsertInput,
) -> Result<(), String> {
    upsert_custom_world_profile_record(ctx, input).map(|_| ())
}

// procedure 面向 Axum 返回 profile 与可能同步出的 gallery 投影，避免 HTTP 层再二次查询私有表。
#[spacetimedb::procedure]
pub fn upsert_custom_world_profile_and_return(
    ctx: &mut ProcedureContext,
    input: CustomWorldProfileUpsertInput,
) -> CustomWorldLibraryMutationResult {
    match ctx.try_with_tx(|tx| upsert_custom_world_profile_record(tx, input.clone())) {
        Ok((entry, gallery_entry)) => CustomWorldLibraryMutationResult {
            ok: true,
            entry: Some(entry),
            gallery_entry,
            error_message: None,
        },
        Err(message) => CustomWorldLibraryMutationResult {
            ok: false,
            entry: None,
            gallery_entry: None,
            error_message: Some(message),
        },
    }
}

// publish 负责同时推进 profile 发布态与 gallery 公开投影，避免公开列表继续运行时拼装。
#[spacetimedb::reducer]
pub fn publish_custom_world_profile(
    ctx: &ReducerContext,
    input: CustomWorldProfilePublishInput,
) -> Result<(), String> {
    publish_custom_world_profile_record(ctx, input).map(|_| ())
}

#[spacetimedb::procedure]
pub fn publish_custom_world_profile_and_return(
    ctx: &mut ProcedureContext,
    input: CustomWorldProfilePublishInput,
) -> CustomWorldLibraryMutationResult {
    match ctx.try_with_tx(|tx| publish_custom_world_profile_record(tx, input.clone())) {
        Ok((entry, gallery_entry)) => CustomWorldLibraryMutationResult {
            ok: true,
            entry: Some(entry),
            gallery_entry,
            error_message: None,
        },
        Err(message) => CustomWorldLibraryMutationResult {
            ok: false,
            entry: None,
            gallery_entry: None,
            error_message: Some(message),
        },
    }
}

// unpublish 负责撤掉 gallery 投影，并把 profile 恢复为 draft。
#[spacetimedb::reducer]
pub fn unpublish_custom_world_profile(
    ctx: &ReducerContext,
    input: CustomWorldProfileUnpublishInput,
) -> Result<(), String> {
    unpublish_custom_world_profile_record(ctx, input).map(|_| ())
}

#[spacetimedb::procedure]
pub fn unpublish_custom_world_profile_and_return(
    ctx: &mut ProcedureContext,
    input: CustomWorldProfileUnpublishInput,
) -> CustomWorldLibraryMutationResult {
    match ctx.try_with_tx(|tx| unpublish_custom_world_profile_record(tx, input.clone())) {
        Ok((entry, gallery_entry)) => CustomWorldLibraryMutationResult {
            ok: true,
            entry: Some(entry),
            gallery_entry,
            error_message: None,
        },
        Err(message) => CustomWorldLibraryMutationResult {
            ok: false,
            entry: None,
            gallery_entry: None,
            error_message: Some(message),
        },
    }
}

// 删除入口继续走 owner-only 软删除，不直接物理删除 profile 真相。
#[spacetimedb::procedure]
pub fn delete_custom_world_profile_and_return(
    ctx: &mut ProcedureContext,
    input: module_custom_world::CustomWorldProfileDeleteInput,
) -> CustomWorldProfileListResult {
    match ctx.try_with_tx(|tx| {
        delete_custom_world_profile_record(tx, input.clone())?;
        list_custom_world_profile_snapshots(
            tx,
            CustomWorldProfileListInput {
                owner_user_id: input.owner_user_id.clone(),
            },
        )
    }) {
        Ok(entries) => CustomWorldProfileListResult {
            ok: true,
            entries,
            error_message: None,
        },
        Err(message) => CustomWorldProfileListResult {
            ok: false,
            entries: Vec::new(),
            error_message: Some(message),
        },
    }
}

#[spacetimedb::procedure]
pub fn list_custom_world_profiles(
    ctx: &mut ProcedureContext,
    input: CustomWorldProfileListInput,
) -> CustomWorldProfileListResult {
    match ctx.try_with_tx(|tx| list_custom_world_profile_snapshots(tx, input.clone())) {
        Ok(entries) => CustomWorldProfileListResult {
            ok: true,
            entries,
            error_message: None,
        },
        Err(message) => CustomWorldProfileListResult {
            ok: false,
            entries: Vec::new(),
            error_message: Some(message),
        },
    }
}

#[spacetimedb::procedure]
pub fn list_custom_world_gallery_entries(
    ctx: &mut ProcedureContext,
) -> CustomWorldGalleryListResult {
    match ctx.try_with_tx(|tx| list_custom_world_gallery_snapshots(tx)) {
        Ok(entries) => CustomWorldGalleryListResult {
            ok: true,
            entries,
            error_message: None,
        },
        Err(message) => CustomWorldGalleryListResult {
            ok: false,
            entries: Vec::new(),
            error_message: Some(message),
        },
    }
}

#[spacetimedb::procedure]
pub fn get_custom_world_library_detail(
    ctx: &mut ProcedureContext,
    input: CustomWorldLibraryDetailInput,
) -> CustomWorldLibraryMutationResult {
    match ctx.try_with_tx(|tx| get_custom_world_library_detail_record(tx, input.clone())) {
        Ok((entry, gallery_entry)) => CustomWorldLibraryMutationResult {
            ok: true,
            entry,
            gallery_entry,
            error_message: None,
        },
        Err(message) => CustomWorldLibraryMutationResult {
            ok: false,
            entry: None,
            gallery_entry: None,
            error_message: Some(message),
        },
    }
}

#[spacetimedb::procedure]
pub fn get_custom_world_gallery_detail(
    ctx: &mut ProcedureContext,
    input: CustomWorldGalleryDetailInput,
) -> CustomWorldLibraryMutationResult {
    match ctx.try_with_tx(|tx| get_custom_world_gallery_detail_record(tx, input.clone())) {
        Ok((entry, gallery_entry)) => CustomWorldLibraryMutationResult {
            ok: true,
            entry,
            gallery_entry,
            error_message: None,
        },
        Err(message) => CustomWorldLibraryMutationResult {
            ok: false,
            entry: None,
            gallery_entry: None,
            error_message: Some(message),
        },
    }
}

#[spacetimedb::procedure]
pub fn get_custom_world_gallery_detail_by_code(
    ctx: &mut ProcedureContext,
    input: module_custom_world::CustomWorldGalleryDetailByCodeInput,
) -> CustomWorldLibraryMutationResult {
    match ctx.try_with_tx(|tx| get_custom_world_gallery_detail_record_by_code(tx, input.clone())) {
        Ok((entry, gallery_entry)) => CustomWorldLibraryMutationResult {
            ok: true,
            entry,
            gallery_entry,
            error_message: None,
        },
        Err(message) => CustomWorldLibraryMutationResult {
            ok: false,
            entry: None,
            gallery_entry: None,
            error_message: Some(message),
        },
    }
}

#[spacetimedb::procedure]
pub fn remix_custom_world_profile(
    ctx: &mut ProcedureContext,
    input: module_custom_world::CustomWorldProfileRemixInput,
) -> CustomWorldLibraryMutationResult {
    match ctx.try_with_tx(|tx| remix_custom_world_profile_record(tx, input.clone())) {
        Ok((entry, gallery_entry)) => CustomWorldLibraryMutationResult {
            ok: true,
            entry: Some(entry),
            gallery_entry,
            error_message: None,
        },
        Err(message) => CustomWorldLibraryMutationResult {
            ok: false,
            entry: None,
            gallery_entry: None,
            error_message: Some(message),
        },
    }
}

#[spacetimedb::procedure]
pub fn record_custom_world_profile_play(
    ctx: &mut ProcedureContext,
    input: module_custom_world::CustomWorldProfilePlayRecordInput,
) -> CustomWorldLibraryMutationResult {
    match ctx.try_with_tx(|tx| record_custom_world_profile_play_record(tx, input.clone())) {
        Ok((entry, gallery_entry)) => CustomWorldLibraryMutationResult {
            ok: true,
            entry: Some(entry),
            gallery_entry: Some(gallery_entry),
            error_message: None,
        },
        Err(message) => CustomWorldLibraryMutationResult {
            ok: false,
            entry: None,
            gallery_entry: None,
            error_message: Some(message),
        },
    }
}

#[spacetimedb::procedure]
pub fn record_custom_world_profile_like(
    ctx: &mut ProcedureContext,
    input: module_custom_world::CustomWorldProfileLikeRecordInput,
) -> CustomWorldLibraryMutationResult {
    match ctx.try_with_tx(|tx| record_custom_world_profile_like_record(tx, input.clone())) {
        Ok((entry, gallery_entry)) => CustomWorldLibraryMutationResult {
            ok: true,
            entry: Some(entry),
            gallery_entry: Some(gallery_entry),
            error_message: None,
        },
        Err(message) => CustomWorldLibraryMutationResult {
            ok: false,
            entry: None,
            gallery_entry: None,
            error_message: Some(message),
        },
    }
}

#[spacetimedb::procedure]
pub fn list_custom_world_works(
    ctx: &mut ProcedureContext,
    input: CustomWorldWorksListInput,
) -> CustomWorldWorksListResult {
    match ctx.try_with_tx(|tx| list_custom_world_work_snapshots(tx, input.clone())) {
        Ok(items) => CustomWorldWorksListResult {
            ok: true,
            items,
            error_message: None,
        },
        Err(message) => CustomWorldWorksListResult {
            ok: false,
            items: Vec::new(),
            error_message: Some(message),
        },
    }
}

#[spacetimedb::procedure]
pub fn get_custom_world_agent_card_detail(
    ctx: &mut ProcedureContext,
    input: CustomWorldAgentCardDetailGetInput,
) -> CustomWorldDraftCardDetailResult {
    match ctx.try_with_tx(|tx| get_custom_world_agent_card_detail_tx(tx, input.clone())) {
        Ok(card) => CustomWorldDraftCardDetailResult {
            ok: true,
            card: Some(card),
            error_message: None,
        },
        Err(message) => CustomWorldDraftCardDetailResult {
            ok: false,
            card: None,
            error_message: Some(message),
        },
    }
}

#[spacetimedb::procedure]
pub fn execute_custom_world_agent_action(
    ctx: &mut ProcedureContext,
    input: CustomWorldAgentActionExecuteInput,
) -> CustomWorldAgentActionExecuteResult {
    match ctx.try_with_tx(|tx| execute_custom_world_agent_action_tx(tx, input.clone())) {
        Ok(operation) => CustomWorldAgentActionExecuteResult {
            ok: true,
            operation: Some(operation),
            error_message: None,
        },
        Err(message) => CustomWorldAgentActionExecuteResult {
            ok: false,
            operation: None,
            error_message: Some(message),
        },
    }
}

// Stage 3 先把 published profile compile 作为独立 procedure 暴露，避免把编译逻辑和表写入、发布动作强耦合。
#[spacetimedb::procedure]
pub fn compile_custom_world_published_profile(
    _ctx: &mut ProcedureContext,
    input: CustomWorldPublishedProfileCompileInput,
) -> CustomWorldPublishedProfileCompileResult {
    match build_custom_world_published_profile_compile_snapshot(input) {
        Ok(record) => CustomWorldPublishedProfileCompileResult {
            ok: true,
            record: Some(record),
            error_message: None,
        },
        Err(error) => CustomWorldPublishedProfileCompileResult {
            ok: false,
            record: None,
            error_message: Some(error.to_string()),
        },
    }
}

// Stage 4 把 publish_world 串成单事务主链：compile -> profile upsert -> profile publish -> session.stage 推进。
#[spacetimedb::procedure]
pub fn publish_custom_world_world(
    ctx: &mut ProcedureContext,
    input: CustomWorldPublishWorldInput,
) -> CustomWorldPublishWorldResult {
    match ctx.try_with_tx(|tx| publish_custom_world_world_record(tx, input.clone())) {
        Ok((compiled_record, entry, gallery_entry, session_stage)) => {
            CustomWorldPublishWorldResult {
                ok: true,
                compiled_record: Some(compiled_record),
                entry: Some(entry),
                gallery_entry,
                session_stage: Some(session_stage),
                error_message: None,
            }
        }
        Err(message) => CustomWorldPublishWorldResult {
            ok: false,
            compiled_record: None,
            entry: None,
            gallery_entry: None,
            session_stage: None,
            error_message: Some(message),
        },
    }
}
fn upsert_custom_world_profile_record(
    ctx: &ReducerContext,
    input: CustomWorldProfileUpsertInput,
) -> Result<
    (
        CustomWorldProfileSnapshot,
        Option<CustomWorldGalleryEntrySnapshot>,
    ),
    String,
> {
    validate_custom_world_profile_upsert_input(&input).map_err(|error| error.to_string())?;

    let updated_at = Timestamp::from_micros_since_unix_epoch(input.updated_at_micros);
    let current = ctx
        .db
        .custom_world_profile()
        .profile_id()
        .find(&input.profile_id)
        .filter(|row| row.owner_user_id == input.owner_user_id)
        .or_else(|| {
            input
                .source_agent_session_id
                .as_ref()
                .and_then(|session_id| {
                    ctx.db
                        .custom_world_profile()
                        .by_custom_world_profile_owner_user_id()
                        .filter(&input.owner_user_id)
                        .find(|row| {
                            is_same_agent_draft_profile_candidate(
                                row,
                                &input.owner_user_id,
                                session_id,
                            )
                        })
                })
        });

    let next_row = match current {
        Some(existing) => {
            ctx.db
                .custom_world_profile()
                .profile_id()
                .delete(&existing.profile_id);
            CustomWorldProfile {
                profile_id: existing.profile_id.clone(),
                owner_user_id: existing.owner_user_id.clone(),
                public_work_code: existing.public_work_code.clone(),
                author_public_user_code: existing.author_public_user_code.clone(),
                source_agent_session_id: input.source_agent_session_id.clone(),
                publication_status: existing.publication_status,
                world_name: input.world_name.clone(),
                subtitle: input.subtitle.clone(),
                summary_text: input.summary_text.clone(),
                theme_mode: input.theme_mode,
                cover_image_src: input.cover_image_src.clone(),
                profile_payload_json: input.profile_payload_json.clone(),
                playable_npc_count: input.playable_npc_count,
                landmark_count: input.landmark_count,
                play_count: existing.play_count,
                remix_count: existing.remix_count,
                like_count: existing.like_count,
                author_display_name: input.author_display_name.clone(),
                published_at: existing.published_at,
                deleted_at: None,
                created_at: existing.created_at,
                updated_at,
            }
        }
        None => CustomWorldProfile {
            profile_id: input.profile_id.clone(),
            owner_user_id: input.owner_user_id.clone(),
            public_work_code: input.public_work_code.clone(),
            author_public_user_code: input.author_public_user_code.clone(),
            source_agent_session_id: input.source_agent_session_id.clone(),
            publication_status: CustomWorldPublicationStatus::Draft,
            world_name: input.world_name.clone(),
            subtitle: input.subtitle.clone(),
            summary_text: input.summary_text.clone(),
            theme_mode: input.theme_mode,
            cover_image_src: input.cover_image_src.clone(),
            profile_payload_json: input.profile_payload_json.clone(),
            playable_npc_count: input.playable_npc_count,
            landmark_count: input.landmark_count,
            play_count: 0,
            remix_count: 0,
            like_count: 0,
            author_display_name: input.author_display_name.clone(),
            published_at: None,
            deleted_at: None,
            created_at: updated_at,
            updated_at,
        },
    };

    let inserted = ctx.db.custom_world_profile().insert(next_row);

    let gallery_entry = if inserted.publication_status == CustomWorldPublicationStatus::Published {
        Some(sync_custom_world_gallery_entry_from_profile(
            ctx, &inserted,
        )?)
    } else {
        ctx.db
            .custom_world_gallery_entry()
            .profile_id()
            .delete(&inserted.profile_id);
        None
    };

    Ok((
        build_custom_world_profile_snapshot(&inserted),
        gallery_entry,
    ))
}

fn publish_custom_world_world_record(
    ctx: &ReducerContext,
    input: CustomWorldPublishWorldInput,
) -> Result<
    (
        module_custom_world::CustomWorldPublishedProfileCompileSnapshot,
        CustomWorldProfileSnapshot,
        Option<CustomWorldGalleryEntrySnapshot>,
        RpgAgentStage,
    ),
    String,
> {
    validate_custom_world_publish_world_input(&input).map_err(|error| error.to_string())?;

    let compiled_record = build_custom_world_published_profile_compile_snapshot(
        CustomWorldPublishedProfileCompileInput {
            session_id: input.session_id.clone(),
            profile_id: input.profile_id.clone(),
            owner_user_id: input.owner_user_id.clone(),
            draft_profile_json: input.draft_profile_json.clone(),
            legacy_result_profile_json: input.legacy_result_profile_json.clone(),
            setting_text: input.setting_text.clone(),
            author_display_name: input.author_display_name.clone(),
            updated_at_micros: input.published_at_micros,
        },
    )
    .map_err(|error| error.to_string())?;

    let _ = upsert_custom_world_profile_record(
        ctx,
        CustomWorldProfileUpsertInput {
            profile_id: compiled_record.profile_id.clone(),
            owner_user_id: compiled_record.owner_user_id.clone(),
            public_work_code: input.public_work_code.clone(),
            author_public_user_code: Some(input.author_public_user_code.clone()),
            source_agent_session_id: Some(input.session_id.clone()),
            world_name: compiled_record.world_name.clone(),
            subtitle: compiled_record.subtitle.clone(),
            summary_text: compiled_record.summary_text.clone(),
            theme_mode: compiled_record.theme_mode,
            cover_image_src: compiled_record.cover_image_src.clone(),
            profile_payload_json: compiled_record.compiled_profile_payload_json.clone(),
            playable_npc_count: compiled_record.playable_npc_count,
            landmark_count: compiled_record.landmark_count,
            author_display_name: compiled_record.author_display_name.clone(),
            updated_at_micros: input.published_at_micros,
        },
    )?;

    let (entry, gallery_entry) = publish_custom_world_profile_record(
        ctx,
        CustomWorldProfilePublishInput {
            profile_id: compiled_record.profile_id.clone(),
            owner_user_id: compiled_record.owner_user_id.clone(),
            public_work_code: input.public_work_code.clone(),
            author_public_user_code: input.author_public_user_code.clone(),
            author_display_name: compiled_record.author_display_name.clone(),
            published_at_micros: input.published_at_micros,
        },
    )?;

    let session_stage = mark_custom_world_agent_session_published(
        ctx,
        &input.session_id,
        &input.owner_user_id,
        input.published_at_micros,
    )?;

    Ok((compiled_record, entry, gallery_entry, session_stage))
}

fn publish_custom_world_profile_record(
    ctx: &ReducerContext,
    input: CustomWorldProfilePublishInput,
) -> Result<
    (
        CustomWorldProfileSnapshot,
        Option<CustomWorldGalleryEntrySnapshot>,
    ),
    String,
> {
    validate_custom_world_profile_publish_input(&input).map_err(|error| error.to_string())?;

    let existing = ctx
        .db
        .custom_world_profile()
        .profile_id()
        .find(&input.profile_id)
        .filter(|row| row.owner_user_id == input.owner_user_id)
        .ok_or_else(|| "custom_world_profile 不存在，无法发布".to_string())?;

    let published_at = Timestamp::from_micros_since_unix_epoch(input.published_at_micros);

    ctx.db
        .custom_world_profile()
        .profile_id()
        .delete(&existing.profile_id);

    let next_row = CustomWorldProfile {
        profile_id: existing.profile_id.clone(),
        owner_user_id: existing.owner_user_id.clone(),
        public_work_code: existing
            .public_work_code
            .clone()
            .or_else(|| Some(build_public_work_code_from_profile_id(&existing.profile_id))),
        author_public_user_code: Some(input.author_public_user_code.clone()),
        source_agent_session_id: existing.source_agent_session_id.clone(),
        publication_status: CustomWorldPublicationStatus::Published,
        world_name: existing.world_name.clone(),
        subtitle: existing.subtitle.clone(),
        summary_text: existing.summary_text.clone(),
        theme_mode: existing.theme_mode,
        cover_image_src: existing.cover_image_src.clone(),
        profile_payload_json: existing.profile_payload_json.clone(),
        playable_npc_count: existing.playable_npc_count,
        landmark_count: existing.landmark_count,
        play_count: existing.play_count,
        remix_count: existing.remix_count,
        like_count: existing.like_count,
        author_display_name: input.author_display_name.clone(),
        published_at: Some(published_at),
        deleted_at: None,
        created_at: existing.created_at,
        updated_at: published_at,
    };

    let inserted = ctx.db.custom_world_profile().insert(next_row);
    let gallery_entry = sync_custom_world_gallery_entry_from_profile(ctx, &inserted)?;

    Ok((
        build_custom_world_profile_snapshot(&inserted),
        Some(gallery_entry),
    ))
}

fn unpublish_custom_world_profile_record(
    ctx: &ReducerContext,
    input: CustomWorldProfileUnpublishInput,
) -> Result<
    (
        CustomWorldProfileSnapshot,
        Option<CustomWorldGalleryEntrySnapshot>,
    ),
    String,
> {
    validate_custom_world_profile_unpublish_input(&input).map_err(|error| error.to_string())?;

    let existing = ctx
        .db
        .custom_world_profile()
        .profile_id()
        .find(&input.profile_id)
        .filter(|row| row.owner_user_id == input.owner_user_id)
        .ok_or_else(|| "custom_world_profile 不存在，无法取消发布".to_string())?;

    let updated_at = Timestamp::from_micros_since_unix_epoch(input.updated_at_micros);

    ctx.db
        .custom_world_profile()
        .profile_id()
        .delete(&existing.profile_id);

    ctx.db
        .custom_world_gallery_entry()
        .profile_id()
        .delete(&existing.profile_id);

    let next_row = CustomWorldProfile {
        profile_id: existing.profile_id.clone(),
        owner_user_id: existing.owner_user_id.clone(),
        public_work_code: existing.public_work_code.clone(),
        author_public_user_code: existing.author_public_user_code.clone(),
        source_agent_session_id: existing.source_agent_session_id.clone(),
        publication_status: CustomWorldPublicationStatus::Draft,
        world_name: existing.world_name.clone(),
        subtitle: existing.subtitle.clone(),
        summary_text: existing.summary_text.clone(),
        theme_mode: existing.theme_mode,
        cover_image_src: existing.cover_image_src.clone(),
        profile_payload_json: existing.profile_payload_json.clone(),
        playable_npc_count: existing.playable_npc_count,
        landmark_count: existing.landmark_count,
        play_count: existing.play_count,
        remix_count: existing.remix_count,
        like_count: existing.like_count,
        author_display_name: input.author_display_name.clone(),
        published_at: None,
        deleted_at: None,
        created_at: existing.created_at,
        updated_at,
    };

    let inserted = ctx.db.custom_world_profile().insert(next_row);

    Ok((build_custom_world_profile_snapshot(&inserted), None))
}

fn delete_custom_world_profile_record(
    ctx: &ReducerContext,
    input: module_custom_world::CustomWorldProfileDeleteInput,
) -> Result<(), String> {
    validate_custom_world_profile_delete_input(&input).map_err(|error| error.to_string())?;

    let Some(existing) = ctx
        .db
        .custom_world_profile()
        .profile_id()
        .find(&input.profile_id)
        .filter(|row| row.owner_user_id == input.owner_user_id)
    else {
        return Ok(());
    };

    if existing.deleted_at.is_some() {
        return Ok(());
    }

    let deleted_at = Timestamp::from_micros_since_unix_epoch(input.deleted_at_micros);

    ctx.db
        .custom_world_profile()
        .profile_id()
        .delete(&existing.profile_id);

    ctx.db
        .custom_world_gallery_entry()
        .profile_id()
        .delete(&existing.profile_id);

    let next_row = CustomWorldProfile {
        profile_id: existing.profile_id.clone(),
        owner_user_id: existing.owner_user_id.clone(),
        public_work_code: existing.public_work_code.clone(),
        author_public_user_code: existing.author_public_user_code.clone(),
        source_agent_session_id: existing.source_agent_session_id.clone(),
        publication_status: CustomWorldPublicationStatus::Draft,
        world_name: existing.world_name.clone(),
        subtitle: existing.subtitle.clone(),
        summary_text: existing.summary_text.clone(),
        theme_mode: existing.theme_mode,
        cover_image_src: existing.cover_image_src.clone(),
        profile_payload_json: existing.profile_payload_json.clone(),
        playable_npc_count: existing.playable_npc_count,
        landmark_count: existing.landmark_count,
        play_count: existing.play_count,
        remix_count: existing.remix_count,
        like_count: existing.like_count,
        author_display_name: existing.author_display_name.clone(),
        published_at: None,
        deleted_at: Some(deleted_at),
        created_at: existing.created_at,
        updated_at: deleted_at,
    };

    let _ = ctx.db.custom_world_profile().insert(next_row);
    Ok(())
}

fn list_custom_world_profile_snapshots(
    ctx: &ReducerContext,
    input: CustomWorldProfileListInput,
) -> Result<Vec<CustomWorldProfileSnapshot>, String> {
    validate_custom_world_profile_list_input(&input).map_err(|error| error.to_string())?;

    let mut entries = ctx
        .db
        .custom_world_profile()
        .by_custom_world_profile_owner_user_id()
        .filter(&input.owner_user_id)
        .filter(|row| row.deleted_at.is_none())
        .map(|row| build_custom_world_profile_snapshot(&row))
        .collect::<Vec<_>>();

    entries.sort_by(|left, right| right.updated_at_micros.cmp(&left.updated_at_micros));

    Ok(entries)
}

fn list_custom_world_gallery_snapshots(
    ctx: &ReducerContext,
) -> Result<Vec<CustomWorldGalleryEntrySnapshot>, String> {
    sync_missing_custom_world_gallery_entries(ctx)?;

    let entries = ctx
        .db
        .custom_world_gallery_entry()
        .iter()
        .collect::<Vec<_>>();
    let profile_ids = entries
        .iter()
        .map(|row| row.profile_id.clone())
        .collect::<Vec<_>>();
    let recent_play_counts = count_recent_public_work_plays_for_profiles(
        ctx,
        "custom-world",
        &profile_ids,
        ctx.timestamp.to_micros_since_unix_epoch(),
    );
    let mut entries = entries
        .iter()
        .map(|row| {
            build_custom_world_gallery_entry_snapshot_with_recent_counts(row, &recent_play_counts)
        })
        .collect::<Vec<_>>();

    entries.sort_by(|left, right| {
        right
            .published_at_micros
            .cmp(&left.published_at_micros)
            .then(right.updated_at_micros.cmp(&left.updated_at_micros))
    });

    Ok(entries)
}

fn get_custom_world_library_detail_record(
    ctx: &ReducerContext,
    input: CustomWorldLibraryDetailInput,
) -> Result<
    (
        Option<CustomWorldProfileSnapshot>,
        Option<CustomWorldGalleryEntrySnapshot>,
    ),
    String,
> {
    validate_custom_world_library_detail_input(&input).map_err(|error| error.to_string())?;

    let profile = ctx
        .db
        .custom_world_profile()
        .profile_id()
        .find(&input.profile_id)
        .filter(|row| row.owner_user_id == input.owner_user_id && row.deleted_at.is_none());

    let gallery_entry = profile
        .as_ref()
        .filter(|row| row.publication_status == CustomWorldPublicationStatus::Published)
        .and_then(|row| {
            ctx.db
                .custom_world_gallery_entry()
                .profile_id()
                .find(&row.profile_id)
                .filter(|gallery_row| gallery_row.owner_user_id == row.owner_user_id)
        });

    Ok((
        profile.as_ref().map(build_custom_world_profile_snapshot),
        gallery_entry
            .as_ref()
            .map(|row| build_custom_world_gallery_entry_snapshot(ctx, row)),
    ))
}

fn get_custom_world_gallery_detail_record(
    ctx: &ReducerContext,
    input: CustomWorldGalleryDetailInput,
) -> Result<
    (
        Option<CustomWorldProfileSnapshot>,
        Option<CustomWorldGalleryEntrySnapshot>,
    ),
    String,
> {
    validate_custom_world_gallery_detail_input(&input).map_err(|error| error.to_string())?;

    let profile = ctx
        .db
        .custom_world_profile()
        .profile_id()
        .find(&input.profile_id)
        .filter(|row| {
            row.owner_user_id == input.owner_user_id
                && row.publication_status == CustomWorldPublicationStatus::Published
                && row.deleted_at.is_none()
        });

    let gallery_entry = ctx
        .db
        .custom_world_gallery_entry()
        .profile_id()
        .find(&input.profile_id)
        .filter(|row| row.owner_user_id == input.owner_user_id);

    Ok((
        profile.as_ref().map(build_custom_world_profile_snapshot),
        gallery_entry
            .as_ref()
            .map(|row| build_custom_world_gallery_entry_snapshot(ctx, row)),
    ))
}

fn get_custom_world_gallery_detail_record_by_code(
    ctx: &ReducerContext,
    input: module_custom_world::CustomWorldGalleryDetailByCodeInput,
) -> Result<
    (
        Option<CustomWorldProfileSnapshot>,
        Option<CustomWorldGalleryEntrySnapshot>,
    ),
    String,
> {
    validate_custom_world_gallery_detail_by_code_input(&input)
        .map_err(|error| error.to_string())?;

    let normalized_public_work_code = normalize_public_work_code(&input.public_work_code)
        .ok_or_else(|| "public_work_code 格式不正确".to_string())?;

    let gallery_entry = ctx
        .db
        .custom_world_gallery_entry()
        .by_custom_world_gallery_public_work_code()
        .filter(&normalized_public_work_code)
        .next();

    let profile = gallery_entry.as_ref().and_then(|row| {
        ctx.db
            .custom_world_profile()
            .profile_id()
            .find(&row.profile_id)
            .filter(|profile_row| {
                profile_row.owner_user_id == row.owner_user_id
                    && profile_row.publication_status == CustomWorldPublicationStatus::Published
                    && profile_row.deleted_at.is_none()
            })
    });

    Ok((
        profile.as_ref().map(build_custom_world_profile_snapshot),
        gallery_entry
            .as_ref()
            .map(|row| build_custom_world_gallery_entry_snapshot(ctx, row)),
    ))
}

fn remix_custom_world_profile_record(
    ctx: &ReducerContext,
    input: module_custom_world::CustomWorldProfileRemixInput,
) -> Result<
    (
        CustomWorldProfileSnapshot,
        Option<CustomWorldGalleryEntrySnapshot>,
    ),
    String,
> {
    let source_owner_user_id = input.source_owner_user_id.trim();
    let source_profile_id = input.source_profile_id.trim();
    let target_owner_user_id = input.target_owner_user_id.trim();
    let target_profile_id = input.target_profile_id.trim();
    if source_owner_user_id.is_empty()
        || source_profile_id.is_empty()
        || target_owner_user_id.is_empty()
        || target_profile_id.is_empty()
    {
        return Err("custom_world remix 参数不能为空".to_string());
    }
    if input.author_display_name.trim().is_empty() {
        return Err("custom_world remix 作者名不能为空".to_string());
    }

    let source = ctx
        .db
        .custom_world_profile()
        .profile_id()
        .find(&source_profile_id.to_string())
        .filter(|row| row.owner_user_id == source_owner_user_id)
        .filter(|row| {
            row.publication_status == CustomWorldPublicationStatus::Published
                && row.deleted_at.is_none()
                && row.published_at.is_some()
        })
        .ok_or_else(|| "custom_world 已发布源作品不存在，无法改编".to_string())?;
    let remixed_at = Timestamp::from_micros_since_unix_epoch(input.remixed_at_micros);

    ctx.db
        .custom_world_profile()
        .profile_id()
        .delete(&source.profile_id);
    let next_source = CustomWorldProfile {
        profile_id: source.profile_id.clone(),
        owner_user_id: source.owner_user_id.clone(),
        public_work_code: source.public_work_code.clone(),
        author_public_user_code: source.author_public_user_code.clone(),
        source_agent_session_id: source.source_agent_session_id.clone(),
        publication_status: source.publication_status,
        world_name: source.world_name.clone(),
        subtitle: source.subtitle.clone(),
        summary_text: source.summary_text.clone(),
        theme_mode: source.theme_mode,
        cover_image_src: source.cover_image_src.clone(),
        profile_payload_json: source.profile_payload_json.clone(),
        playable_npc_count: source.playable_npc_count,
        landmark_count: source.landmark_count,
        play_count: source.play_count,
        remix_count: source.remix_count.saturating_add(1),
        like_count: source.like_count,
        author_display_name: source.author_display_name.clone(),
        published_at: source.published_at,
        deleted_at: source.deleted_at,
        created_at: source.created_at,
        updated_at: remixed_at,
    };
    let updated_source = ctx.db.custom_world_profile().insert(next_source);
    let source_gallery = sync_custom_world_gallery_entry_from_profile(ctx, &updated_source)?;

    // 改编生成目标用户草稿：复制内容，不复制源作品热度。
    let draft = CustomWorldProfile {
        profile_id: target_profile_id.to_string(),
        owner_user_id: target_owner_user_id.to_string(),
        public_work_code: None,
        author_public_user_code: None,
        source_agent_session_id: None,
        publication_status: CustomWorldPublicationStatus::Draft,
        world_name: source.world_name.clone(),
        subtitle: source.subtitle.clone(),
        summary_text: source.summary_text.clone(),
        theme_mode: source.theme_mode,
        cover_image_src: source.cover_image_src.clone(),
        profile_payload_json: source.profile_payload_json.clone(),
        playable_npc_count: source.playable_npc_count,
        landmark_count: source.landmark_count,
        play_count: 0,
        remix_count: 0,
        like_count: 0,
        author_display_name: input.author_display_name.trim().to_string(),
        published_at: None,
        deleted_at: None,
        created_at: remixed_at,
        updated_at: remixed_at,
    };

    if let Some(existing_target) = ctx
        .db
        .custom_world_profile()
        .profile_id()
        .find(&target_profile_id.to_string())
        .filter(|row| row.owner_user_id == target_owner_user_id)
    {
        ctx.db
            .custom_world_profile()
            .profile_id()
            .delete(&existing_target.profile_id);
    }

    let inserted_draft = ctx.db.custom_world_profile().insert(draft);
    Ok((
        build_custom_world_profile_snapshot(&inserted_draft),
        Some(source_gallery),
    ))
}

fn record_custom_world_profile_play_record(
    ctx: &ReducerContext,
    input: module_custom_world::CustomWorldProfilePlayRecordInput,
) -> Result<(CustomWorldProfileSnapshot, CustomWorldGalleryEntrySnapshot), String> {
    let owner_user_id = input.owner_user_id.trim();
    let profile_id = input.profile_id.trim();
    if owner_user_id.is_empty() || profile_id.is_empty() {
        return Err("custom_world play 参数不能为空".to_string());
    }
    let existing = ctx
        .db
        .custom_world_profile()
        .profile_id()
        .find(&profile_id.to_string())
        .filter(|row| row.owner_user_id == owner_user_id)
        .filter(|row| {
            row.publication_status == CustomWorldPublicationStatus::Published
                && row.deleted_at.is_none()
                && row.published_at.is_some()
        })
        .ok_or_else(|| "custom_world 已发布作品不存在，无法记录游玩".to_string())?;
    let played_at = Timestamp::from_micros_since_unix_epoch(input.played_at_micros);

    record_public_work_play(
        ctx,
        PublicWorkPlayRecordInput {
            source_type: "custom-world".to_string(),
            owner_user_id: owner_user_id.to_string(),
            profile_id: profile_id.to_string(),
            played_at_micros: input.played_at_micros,
        },
    )?;

    ctx.db
        .custom_world_profile()
        .profile_id()
        .delete(&existing.profile_id);
    let next_row = CustomWorldProfile {
        profile_id: existing.profile_id.clone(),
        owner_user_id: existing.owner_user_id.clone(),
        public_work_code: existing.public_work_code.clone(),
        author_public_user_code: existing.author_public_user_code.clone(),
        source_agent_session_id: existing.source_agent_session_id.clone(),
        publication_status: existing.publication_status,
        world_name: existing.world_name.clone(),
        subtitle: existing.subtitle.clone(),
        summary_text: existing.summary_text.clone(),
        theme_mode: existing.theme_mode,
        cover_image_src: existing.cover_image_src.clone(),
        profile_payload_json: existing.profile_payload_json.clone(),
        playable_npc_count: existing.playable_npc_count,
        landmark_count: existing.landmark_count,
        play_count: existing.play_count.saturating_add(1),
        remix_count: existing.remix_count,
        like_count: existing.like_count,
        author_display_name: existing.author_display_name.clone(),
        published_at: existing.published_at,
        deleted_at: existing.deleted_at,
        created_at: existing.created_at,
        updated_at: played_at,
    };
    let inserted = ctx.db.custom_world_profile().insert(next_row);
    let gallery_entry = sync_custom_world_gallery_entry_from_profile(ctx, &inserted)?;

    Ok((
        build_custom_world_profile_snapshot(&inserted),
        gallery_entry,
    ))
}

fn record_custom_world_profile_like_record(
    ctx: &ReducerContext,
    input: module_custom_world::CustomWorldProfileLikeRecordInput,
) -> Result<(CustomWorldProfileSnapshot, CustomWorldGalleryEntrySnapshot), String> {
    let owner_user_id = input.owner_user_id.trim();
    let profile_id = input.profile_id.trim();
    let user_id = input.user_id.trim();
    if owner_user_id.is_empty() || profile_id.is_empty() || user_id.is_empty() {
        return Err("custom_world like 参数不能为空".to_string());
    }
    let existing = ctx
        .db
        .custom_world_profile()
        .profile_id()
        .find(&profile_id.to_string())
        .filter(|row| row.owner_user_id == owner_user_id)
        .filter(|row| {
            row.publication_status == CustomWorldPublicationStatus::Published
                && row.deleted_at.is_none()
                && row.published_at.is_some()
        })
        .ok_or_else(|| "custom_world 已发布作品不存在，无法点赞".to_string())?;
    let liked_at = Timestamp::from_micros_since_unix_epoch(input.liked_at_micros);

    let inserted_like = record_public_work_like(
        ctx,
        PublicWorkLikeRecordInput {
            source_type: "custom-world".to_string(),
            owner_user_id: owner_user_id.to_string(),
            profile_id: profile_id.to_string(),
            user_id: user_id.to_string(),
            liked_at_micros: input.liked_at_micros,
        },
    )?;

    if !inserted_like {
        let gallery_entry = sync_custom_world_gallery_entry_from_profile(ctx, &existing)?;
        return Ok((
            build_custom_world_profile_snapshot(&existing),
            gallery_entry,
        ));
    }

    ctx.db
        .custom_world_profile()
        .profile_id()
        .delete(&existing.profile_id);
    let next_row = CustomWorldProfile {
        profile_id: existing.profile_id.clone(),
        owner_user_id: existing.owner_user_id.clone(),
        public_work_code: existing.public_work_code.clone(),
        author_public_user_code: existing.author_public_user_code.clone(),
        source_agent_session_id: existing.source_agent_session_id.clone(),
        publication_status: existing.publication_status,
        world_name: existing.world_name.clone(),
        subtitle: existing.subtitle.clone(),
        summary_text: existing.summary_text.clone(),
        theme_mode: existing.theme_mode,
        cover_image_src: existing.cover_image_src.clone(),
        profile_payload_json: existing.profile_payload_json.clone(),
        playable_npc_count: existing.playable_npc_count,
        landmark_count: existing.landmark_count,
        play_count: existing.play_count,
        remix_count: existing.remix_count,
        like_count: existing.like_count.saturating_add(1),
        author_display_name: existing.author_display_name.clone(),
        published_at: existing.published_at,
        deleted_at: existing.deleted_at,
        created_at: existing.created_at,
        updated_at: liked_at,
    };
    let inserted = ctx.db.custom_world_profile().insert(next_row);
    let gallery_entry = sync_custom_world_gallery_entry_from_profile(ctx, &inserted)?;

    Ok((
        build_custom_world_profile_snapshot(&inserted),
        gallery_entry,
    ))
}

fn list_custom_world_work_snapshots(
    ctx: &ReducerContext,
    input: CustomWorldWorksListInput,
) -> Result<Vec<CustomWorldWorkSummarySnapshot>, String> {
    validate_custom_world_works_list_input(&input).map_err(|error| error.to_string())?;

    let mut items = Vec::new();
    let mut active_agent_session_ids = HashSet::new();

    let sessions = ctx
        .db
        .custom_world_agent_session()
        .by_custom_world_agent_session_owner_user_id()
        .filter(&input.owner_user_id)
        .collect::<Vec<_>>();
    for session in sessions.iter().filter(|row| {
        row.stage != RpgAgentStage::Published
            && should_include_custom_world_agent_session_work(ctx, row)
    }) {
        active_agent_session_ids.insert(session.session_id.clone());
        let gate = build_custom_world_publish_gate_from_session(&session);
        let draft_profile = parse_optional_session_object(session.draft_profile_json.as_deref());
        let title = resolve_session_work_title(&session, draft_profile.as_ref());
        let summary = resolve_session_work_summary(&session, draft_profile.as_ref());
        let stage_label = Some(resolve_rpg_agent_stage_label(session.stage).to_string());
        let subtitle =
            resolve_session_work_subtitle(draft_profile.as_ref(), stage_label.as_deref());
        let (playable_npc_count, landmark_count) =
            resolve_session_work_counts(ctx, &session, draft_profile.as_ref());

        items.push(CustomWorldWorkSummarySnapshot {
            work_id: format!("draft:{}", session.session_id),
            source_type: "agent_session".to_string(),
            status: "draft".to_string(),
            title,
            subtitle,
            summary,
            cover_image_src: resolve_session_work_cover_image_src(draft_profile.as_ref()),
            cover_render_mode: None,
            cover_character_image_srcs_json: "[]".to_string(),
            updated_at_micros: session.updated_at.to_micros_since_unix_epoch(),
            published_at_micros: None,
            stage: Some(session.stage),
            stage_label,
            playable_npc_count,
            landmark_count,
            role_visual_ready_count: None,
            role_animation_ready_count: None,
            role_asset_summary_label: None,
            session_id: Some(session.session_id.clone()),
            profile_id: None,
            can_resume: true,
            can_enter_world: gate.can_enter_world,
            blocker_count: gate.blocker_count,
            publish_ready: gate.publish_ready,
        });
    }

    for profile in ctx
        .db
        .custom_world_profile()
        .by_custom_world_profile_owner_user_id()
        .filter(&input.owner_user_id)
        .filter(|row| row.deleted_at.is_none())
        .filter(|row| should_include_custom_world_profile_work(row, &active_agent_session_ids))
    {
        items.push(CustomWorldWorkSummarySnapshot {
            work_id: format!("published:{}", profile.profile_id),
            source_type: "published_profile".to_string(),
            status: profile.publication_status.as_str().to_string(),
            title: profile.world_name.clone(),
            subtitle: profile.subtitle.clone(),
            summary: profile.summary_text.clone(),
            cover_image_src: profile.cover_image_src.clone(),
            cover_render_mode: None,
            cover_character_image_srcs_json: "[]".to_string(),
            updated_at_micros: profile.updated_at.to_micros_since_unix_epoch(),
            published_at_micros: profile
                .published_at
                .map(|value| value.to_micros_since_unix_epoch()),
            stage: None,
            stage_label: None,
            playable_npc_count: profile.playable_npc_count,
            landmark_count: profile.landmark_count,
            role_visual_ready_count: None,
            role_animation_ready_count: None,
            role_asset_summary_label: None,
            session_id: profile.source_agent_session_id.clone(),
            profile_id: Some(profile.profile_id.clone()),
            can_resume: false,
            can_enter_world: profile.publication_status == CustomWorldPublicationStatus::Published,
            blocker_count: 0,
            publish_ready: true,
        });
    }

    items.sort_by(|left, right| {
        right
            .updated_at_micros
            .cmp(&left.updated_at_micros)
            .then_with(|| {
                let left_rank = if left.source_type == "agent_session" {
                    0
                } else {
                    1
                };
                let right_rank = if right.source_type == "agent_session" {
                    0
                } else {
                    1
                };
                left_rank.cmp(&right_rank)
            })
            .then(left.work_id.cmp(&right.work_id))
    });

    Ok(items)
}

fn should_include_custom_world_agent_session_work(
    ctx: &ReducerContext,
    session: &CustomWorldAgentSession,
) -> bool {
    if custom_world_agent_session_has_direct_work_content(session) {
        return true;
    }

    if ctx
        .db
        .custom_world_agent_message()
        .by_custom_world_agent_message_session_id()
        .filter(&session.session_id)
        .any(|message| matches!(message.role, RpgAgentMessageRole::User))
    {
        return true;
    }

    ctx.db
        .custom_world_draft_card()
        .by_custom_world_draft_card_session_id()
        .filter(&session.session_id)
        .any(|card| card.session_id == session.session_id)
}

fn custom_world_agent_session_has_direct_work_content(session: &CustomWorldAgentSession) -> bool {
    // 创建会话时写入的助手欢迎语和空 `{}` draftProfile 不算草稿内容；
    // 这里只承认用户显式输入的 seed 或已经生成出的真实草稿阶段。
    !session.seed_text.trim().is_empty()
        || matches!(
            session.stage,
            RpgAgentStage::ObjectRefining
                | RpgAgentStage::VisualRefining
                | RpgAgentStage::LongTailReview
                | RpgAgentStage::ReadyToPublish
                | RpgAgentStage::Published
        )
        || parse_optional_session_object(session.draft_profile_json.as_deref())
            .as_ref()
            .is_some_and(|profile| !profile.is_empty())
}

fn should_include_custom_world_profile_work(
    row: &CustomWorldProfile,
    active_agent_session_ids: &HashSet<String>,
) -> bool {
    // 已发布 profile 是正式作品；即使来源会话还存在，也必须保留独立入口。
    if row.publication_status == CustomWorldPublicationStatus::Published {
        return true;
    }

    // 未发布 profile 若来源于仍可继续聊天的 Agent 会话，只是同一草稿的编译产物，
    // works 里保留 agent_session 即可，避免草稿分组显示两份同名作品。
    row.source_agent_session_id
        .as_ref()
        .map_or(true, |session_id| {
            !active_agent_session_ids.contains(session_id)
        })
}

fn get_custom_world_agent_card_detail_tx(
    ctx: &ReducerContext,
    input: CustomWorldAgentCardDetailGetInput,
) -> Result<CustomWorldDraftCardDetailSnapshot, String> {
    validate_custom_world_agent_card_detail_get_input(&input).map_err(|error| error.to_string())?;

    ctx.db
        .custom_world_agent_session()
        .session_id()
        .find(&input.session_id)
        .filter(|row| row.owner_user_id == input.owner_user_id)
        .ok_or_else(|| "custom_world_agent_session 不存在".to_string())?;

    let card = ctx
        .db
        .custom_world_draft_card()
        .card_id()
        .find(&input.card_id)
        .filter(|row| row.session_id == input.session_id)
        .ok_or_else(|| "custom_world_draft_card 不存在".to_string())?;

    build_custom_world_draft_card_detail_snapshot(&card)
}

fn execute_custom_world_agent_action_tx(
    ctx: &ReducerContext,
    input: CustomWorldAgentActionExecuteInput,
) -> Result<CustomWorldAgentOperationSnapshot, String> {
    validate_custom_world_agent_action_execute_input(&input).map_err(|error| error.to_string())?;

    let session = ctx
        .db
        .custom_world_agent_session()
        .session_id()
        .find(&input.session_id)
        .filter(|row| row.owner_user_id == input.owner_user_id)
        .ok_or_else(|| "custom_world_agent_session 不存在".to_string())?;

    if let Some(existing_operation) = ctx
        .db
        .custom_world_agent_operation()
        .operation_id()
        .find(&input.operation_id)
    {
        let can_reuse_running_draft_operation = input.action.trim() == "draft_foundation"
            && existing_operation.session_id == input.session_id
            && existing_operation.operation_type == RpgAgentOperationType::DraftFoundation
            && matches!(
                existing_operation.status,
                RpgAgentOperationStatus::Queued | RpgAgentOperationStatus::Running
            );
        if !can_reuse_running_draft_operation {
            return Err("custom_world_agent_operation.operation_id 已存在".to_string());
        }
    }

    let payload = parse_optional_session_object(input.payload_json.as_deref()).unwrap_or_default();
    match input.action.trim() {
        "draft_foundation" => execute_draft_foundation_action(ctx, &session, &input, &payload),
        "update_draft_card" => execute_update_draft_card_action(ctx, &session, &input, &payload),
        "sync_result_profile" => {
            execute_sync_result_profile_action(ctx, &session, &input, &payload)
        }
        "publish_world" => execute_publish_world_action(ctx, &session, &input, &payload),
        "revert_checkpoint" => execute_revert_checkpoint_action(ctx, &session, &input, &payload),
        "generate_characters" => {
            execute_generate_characters_action(ctx, &session, &input, &payload)
        }
        "generate_landmarks" => execute_generate_landmarks_action(ctx, &session, &input, &payload),
        "generate_role_assets" => {
            execute_generate_role_assets_action(ctx, &session, &input, &payload)
        }
        "sync_role_assets" => execute_sync_role_assets_action(ctx, &session, &input, &payload),
        "generate_scene_assets" => {
            execute_generate_scene_assets_action(ctx, &session, &input, &payload)
        }
        "sync_scene_assets" => execute_sync_scene_assets_action(ctx, &session, &input, &payload),
        "expand_long_tail" => execute_expand_long_tail_action(ctx, &session, &input, &payload),
        other => Err(format!("custom world action `{other}` 当前尚未支持")),
    }
}

fn execute_draft_foundation_action(
    ctx: &ReducerContext,
    session: &CustomWorldAgentSession,
    input: &CustomWorldAgentActionExecuteInput,
    payload: &JsonMap<String, JsonValue>,
) -> Result<CustomWorldAgentOperationSnapshot, String> {
    if session.progress_percent < 100 {
        return Err("draft_foundation requires progressPercent >= 100".to_string());
    }

    let updated_at = input.submitted_at_micros;
    let draft_profile = payload
        .get("draftProfile")
        .and_then(JsonValue::as_object)
        .cloned()
        .ok_or_else(|| {
            "draft_foundation requires externally generated payload.draftProfile".to_string()
        })?;

    let draft_profile_json = serde_json::to_string(&JsonValue::Object(draft_profile.clone()))
        .map_err(|error| format!("draft_foundation 无法序列化 draft_profile_json: {error}"))?;
    let gate = summarize_publish_gate_from_json(
        &input.session_id,
        RpgAgentStage::ObjectRefining,
        Some(&draft_profile),
        &parse_json_array_or_empty(&session.quality_findings_json),
    );
    let next_session = rebuild_custom_world_agent_session_row(
        session,
        CustomWorldAgentSessionPatch {
            progress_percent: Some(100),
            stage: Some(RpgAgentStage::ObjectRefining),
            draft_profile_json: Some(Some(draft_profile_json.clone())),
            last_assistant_reply: Some(Some(
                "世界底稿已整理完成，接下来可以继续细化卡片和发布预览。".to_string(),
            )),
            publish_gate_json: Some(Some(serialize_json_value(&publish_gate_to_json_value(
                &gate,
            ))?)),
            result_preview_json: Some(build_result_preview_json(
                Some(&draft_profile),
                &gate,
                &parse_json_array_or_empty(&session.quality_findings_json),
                updated_at,
            )?),
            checkpoints_json: Some(append_checkpoint_json(
                &session.checkpoints_json,
                &build_session_checkpoint_value("foundation-ready", "底稿整理完成", session),
            )?),
            updated_at_micros: Some(updated_at),
            ..CustomWorldAgentSessionPatch::default()
        },
    )?;
    replace_custom_world_agent_session(ctx, session, next_session);

    upsert_world_foundation_card(ctx, &session.session_id, &draft_profile, updated_at)?;
    append_custom_world_action_result_message(
        ctx,
        &session.session_id,
        &input.operation_id,
        "已整理出第一版世界底稿，并同步生成世界基础卡片。",
        updated_at,
    );

    let operation = complete_custom_world_operation(
        ctx,
        &input.operation_id,
        &session.session_id,
        RpgAgentOperationType::DraftFoundation,
        "底稿已整理",
        "第一版 foundation draft 已写入会话与世界卡。",
        updated_at,
    )?;

    Ok(build_custom_world_agent_operation_snapshot(&operation))
}

fn execute_update_draft_card_action(
    ctx: &ReducerContext,
    session: &CustomWorldAgentSession,
    input: &CustomWorldAgentActionExecuteInput,
    payload: &JsonMap<String, JsonValue>,
) -> Result<CustomWorldAgentOperationSnapshot, String> {
    ensure_refining_stage(session.stage, "update_draft_card")?;

    let card_id =
        read_required_payload_text(payload, "cardId", "update_draft_card requires cardId")?;
    let card = ctx
        .db
        .custom_world_draft_card()
        .card_id()
        .find(&card_id)
        .filter(|row| row.session_id == session.session_id)
        .ok_or_else(|| "update_draft_card target card does not exist".to_string())?;
    let sections = payload
        .get("sections")
        .and_then(JsonValue::as_array)
        .ok_or_else(|| "update_draft_card requires sections".to_string())?;
    if sections.is_empty() {
        return Err("update_draft_card requires sections".to_string());
    }

    let mut detail_object =
        parse_optional_session_object(card.detail_payload_json.as_deref()).unwrap_or_default();
    let mut detail_sections = detail_object
        .get("sections")
        .and_then(JsonValue::as_array)
        .cloned()
        .unwrap_or_else(|| build_fallback_card_sections_json(&card));

    for patch in sections {
        let patch_object = patch
            .as_object()
            .ok_or_else(|| "update_draft_card.sections 必须是 object 数组".to_string())?;
        let section_id = read_required_payload_text(
            patch_object,
            "sectionId",
            "update_draft_card section.sectionId is required",
        )?;
        let value = patch_object
            .get("value")
            .and_then(JsonValue::as_str)
            .unwrap_or_default()
            .trim()
            .to_string();

        let mut updated = false;
        for existing in &mut detail_sections {
            if existing.get("id").and_then(JsonValue::as_str) == Some(section_id.as_str()) {
                if let Some(object) = existing.as_object_mut() {
                    object.insert("value".to_string(), JsonValue::String(value.clone()));
                }
                updated = true;
                break;
            }
        }

        if !updated {
            detail_sections.push(json!({
                "id": section_id,
                "label": section_id,
                "value": value,
            }));
        }
    }

    detail_object.insert("id".to_string(), JsonValue::String(card.card_id.clone()));
    detail_object.insert(
        "kind".to_string(),
        JsonValue::String(card.kind.as_str().to_string()),
    );
    detail_object.insert("title".to_string(), JsonValue::String(card.title.clone()));
    detail_object.insert(
        "sections".to_string(),
        JsonValue::Array(detail_sections.clone()),
    );
    detail_object.insert(
        "linkedIds".to_string(),
        serde_json::from_str::<JsonValue>(&card.linked_ids_json)
            .unwrap_or_else(|_| JsonValue::Array(Vec::new())),
    );
    detail_object.insert("locked".to_string(), JsonValue::Bool(false));
    detail_object.insert("editable".to_string(), JsonValue::Bool(false));
    detail_object.insert(
        "editableSectionIds".to_string(),
        JsonValue::Array(Vec::new()),
    );
    detail_object.insert("warningMessages".to_string(), JsonValue::Array(Vec::new()));

    let updated_title = extract_detail_section_value(&detail_sections, "title")
        .unwrap_or_else(|| card.title.clone());
    let updated_subtitle = extract_detail_section_value(&detail_sections, "subtitle")
        .unwrap_or_else(|| card.subtitle.clone());
    let updated_summary = extract_detail_section_value(&detail_sections, "summary")
        .unwrap_or_else(|| card.summary.clone());
    let detail_payload_json = serde_json::to_string(&JsonValue::Object(detail_object))
        .map_err(|error| format!("update_draft_card 无法序列化 detail_payload_json: {error}"))?;

    replace_custom_world_draft_card(
        ctx,
        &card,
        CustomWorldDraftCard {
            card_id: card.card_id.clone(),
            session_id: card.session_id.clone(),
            kind: card.kind,
            status: card.status,
            title: updated_title.clone(),
            subtitle: updated_subtitle.clone(),
            summary: updated_summary.clone(),
            linked_ids_json: card.linked_ids_json.clone(),
            warning_count: card.warning_count,
            asset_status: card.asset_status,
            asset_status_label: card.asset_status_label.clone(),
            detail_payload_json: Some(detail_payload_json),
            created_at: card.created_at,
            updated_at: Timestamp::from_micros_since_unix_epoch(input.submitted_at_micros),
        },
    );

    let next_session = sync_session_draft_profile_from_card_update(
        session,
        &card,
        &updated_title,
        &updated_subtitle,
        &updated_summary,
        input.submitted_at_micros,
    )?;
    replace_custom_world_agent_session(ctx, session, next_session);

    append_custom_world_action_result_message(
        ctx,
        &session.session_id,
        &input.operation_id,
        &format!("已更新卡片《{}》的草稿内容。", updated_title),
        input.submitted_at_micros,
    );

    let operation = build_and_insert_custom_world_operation(
        ctx,
        &input.operation_id,
        &session.session_id,
        RpgAgentOperationType::UpdateDraftCard,
        "卡片已更新",
        &format!("卡片 {} 的 detail 与摘要字段已同步更新。", card_id),
        input.submitted_at_micros,
    );

    Ok(build_custom_world_agent_operation_snapshot(&operation))
}

fn execute_sync_result_profile_action(
    ctx: &ReducerContext,
    session: &CustomWorldAgentSession,
    input: &CustomWorldAgentActionExecuteInput,
    payload: &JsonMap<String, JsonValue>,
) -> Result<CustomWorldAgentOperationSnapshot, String> {
    ensure_result_profile_sync_stage(session.stage, "sync_result_profile")?;
    let mut profile = payload
        .get("profile")
        .and_then(JsonValue::as_object)
        .cloned()
        .ok_or_else(|| "sync_result_profile requires profile".to_string())?;
    if let Some(stable_profile_id) = resolve_stable_agent_draft_profile_id(session) {
        // 结果页回写时必须沿用当前草稿的稳定身份，避免把同一草稿写成新条目。
        profile.insert(
            "id".to_string(),
            JsonValue::String(stable_profile_id.clone()),
        );
        upsert_nested_result_profile_id(&mut profile, &stable_profile_id);
    }
    let draft_profile = ensure_minimal_draft_profile(profile, &session.seed_text);
    let gate = summarize_publish_gate_from_json(
        &session.session_id,
        session.stage,
        Some(&draft_profile),
        &parse_json_array_or_empty(&session.quality_findings_json),
    );

    let next_session = rebuild_custom_world_agent_session_row(
        session,
        CustomWorldAgentSessionPatch {
            draft_profile_json: Some(Some(serialize_json_value(&JsonValue::Object(
                draft_profile.clone(),
            ))?)),
            last_assistant_reply: Some(Some("结果页草稿已同步回当前会话。".to_string())),
            publish_gate_json: Some(Some(serialize_json_value(&publish_gate_to_json_value(
                &gate,
            ))?)),
            result_preview_json: Some(build_result_preview_json(
                Some(&draft_profile),
                &gate,
                &parse_json_array_or_empty(&session.quality_findings_json),
                input.submitted_at_micros,
            )?),
            checkpoints_json: Some(append_checkpoint_json(
                &session.checkpoints_json,
                &build_session_checkpoint_value("sync-result-profile", "同步结果页草稿", session),
            )?),
            updated_at_micros: Some(input.submitted_at_micros),
            ..CustomWorldAgentSessionPatch::default()
        },
    )?;
    replace_custom_world_agent_session(ctx, session, next_session);

    append_custom_world_action_result_message(
        ctx,
        &session.session_id,
        &input.operation_id,
        "结果页 profile 已回写当前会话，并重建预览。",
        input.submitted_at_micros,
    );

    let operation = build_and_insert_custom_world_operation(
        ctx,
        &input.operation_id,
        &session.session_id,
        RpgAgentOperationType::SyncResultProfile,
        "结果页已同步",
        "draft_profile_json 与 result_preview 已更新。",
        input.submitted_at_micros,
    );

    Ok(build_custom_world_agent_operation_snapshot(&operation))
}

fn resolve_stable_agent_draft_profile_id(session: &CustomWorldAgentSession) -> Option<String> {
    parse_optional_session_object(session.draft_profile_json.as_deref())
        .and_then(|profile| read_optional_text_field(&profile, &["legacyResultProfile.id", "id"]))
}

fn upsert_nested_result_profile_id(
    profile: &mut JsonMap<String, JsonValue>,
    stable_profile_id: &str,
) {
    let legacy_result_profile = profile
        .entry("legacyResultProfile".to_string())
        .or_insert_with(|| JsonValue::Object(JsonMap::new()));
    if let Some(object) = legacy_result_profile.as_object_mut() {
        object.insert(
            "id".to_string(),
            JsonValue::String(stable_profile_id.to_string()),
        );
    }
}

fn resolve_publish_world_setting_text(
    payload: &JsonMap<String, JsonValue>,
    draft_profile: &JsonMap<String, JsonValue>,
    session: &CustomWorldAgentSession,
) -> String {
    module_custom_world::resolve_custom_world_publish_setting_text(
        payload,
        draft_profile,
        &session.seed_text,
    )
}

fn is_same_agent_draft_profile_candidate(
    row: &CustomWorldProfile,
    owner_user_id: &str,
    source_agent_session_id: &str,
) -> bool {
    row.owner_user_id == owner_user_id
        && row.deleted_at.is_none()
        && row.publication_status == CustomWorldPublicationStatus::Draft
        && row.source_agent_session_id.as_deref() == Some(source_agent_session_id)
}

fn execute_publish_world_action(
    ctx: &ReducerContext,
    session: &CustomWorldAgentSession,
    input: &CustomWorldAgentActionExecuteInput,
    payload: &JsonMap<String, JsonValue>,
) -> Result<CustomWorldAgentOperationSnapshot, String> {
    ensure_publishable_stage(session.stage, "publish_world")?;

    // 中文注释：发布动作不再信任前端携带的 draftProfile。
    // 点击发布前，结果页 profile 必须先通过 sync_result_profile 写回
    // custom_world_agent_session.draft_profile_json；正式发布只读取这份会话真相。
    let draft_profile = read_publish_world_draft_profile_from_session(session)?;
    let gate = summarize_publish_gate_from_json(
        &session.session_id,
        session.stage,
        Some(&draft_profile),
        &parse_json_array_or_empty(&session.quality_findings_json),
    );
    if !gate.publish_ready {
        return Err(format!(
            "当前世界仍有 {} 个 blocker，暂时不能发布",
            gate.blocker_count
        ));
    }

    let profile_id = gate.profile_id.clone();
    let setting_text = resolve_publish_world_setting_text(payload, &draft_profile, session);
    let legacy_result_profile_json = None;
    let author_public_user_code = read_optional_text_field(payload, &["authorPublicUserCode"])
        .unwrap_or_else(|| build_public_user_code_from_owner_user_id(&session.owner_user_id));
    let author_display_name = read_optional_text_field(payload, &["authorDisplayName"])
        .unwrap_or_else(|| "创作者".to_string());
    let publish_result = publish_custom_world_world_record(
        ctx,
        CustomWorldPublishWorldInput {
            session_id: session.session_id.clone(),
            profile_id,
            owner_user_id: session.owner_user_id.clone(),
            public_work_code: None,
            author_public_user_code,
            draft_profile_json: serialize_json_value(&JsonValue::Object(draft_profile.clone()))?,
            legacy_result_profile_json,
            setting_text,
            author_display_name,
            published_at_micros: input.submitted_at_micros,
        },
    )?;

    append_custom_world_action_result_message(
        ctx,
        &session.session_id,
        &input.operation_id,
        &format!("正式世界档案已发布：{}。", publish_result.1.profile_id),
        input.submitted_at_micros,
    );

    let operation = build_and_insert_custom_world_operation(
        ctx,
        &input.operation_id,
        &session.session_id,
        RpgAgentOperationType::PublishWorld,
        "世界已发布",
        &format!(
            "正式世界档案已写入作品库：{}。",
            publish_result.1.profile_id
        ),
        input.submitted_at_micros,
    );

    Ok(build_custom_world_agent_operation_snapshot(&operation))
}

fn read_publish_world_draft_profile_from_session(
    session: &CustomWorldAgentSession,
) -> Result<JsonMap<String, JsonValue>, String> {
    parse_optional_session_object(session.draft_profile_json.as_deref())
        .ok_or_else(|| "publish_world requires draft_profile_json".to_string())
}

fn execute_revert_checkpoint_action(
    ctx: &ReducerContext,
    session: &CustomWorldAgentSession,
    input: &CustomWorldAgentActionExecuteInput,
    payload: &JsonMap<String, JsonValue>,
) -> Result<CustomWorldAgentOperationSnapshot, String> {
    ensure_long_tail_stage(session.stage, "revert_checkpoint")?;
    let checkpoint_id = read_required_payload_text(
        payload,
        "checkpointId",
        "revert_checkpoint requires checkpointId",
    )?;
    let checkpoint = parse_json_array_or_empty(&session.checkpoints_json)
        .into_iter()
        .find(|entry| {
            entry
                .get("checkpointId")
                .and_then(JsonValue::as_str)
                .map(str::trim)
                == Some(checkpoint_id.as_str())
        })
        .ok_or_else(|| "revert_checkpoint target checkpoint does not exist".to_string())?;
    let snapshot = checkpoint
        .get("snapshot")
        .and_then(JsonValue::as_object)
        .cloned()
        .ok_or_else(|| {
            "revert_checkpoint target checkpoint does not contain a restorable snapshot".to_string()
        })?;

    let restored_stage = snapshot
        .get("stage")
        .and_then(JsonValue::as_str)
        .and_then(parse_rpg_agent_stage)
        .unwrap_or(session.stage);
    let restored_progress = snapshot
        .get("progressPercent")
        .and_then(JsonValue::as_u64)
        .and_then(|value| u32::try_from(value).ok())
        .unwrap_or(session.progress_percent);
    let restored_draft_profile = snapshot
        .get("draftProfile")
        .and_then(JsonValue::as_object)
        .cloned();
    let restored_quality_findings = snapshot
        .get("qualityFindings")
        .and_then(JsonValue::as_array)
        .cloned()
        .unwrap_or_else(Vec::new);
    let gate = summarize_publish_gate_from_json(
        &session.session_id,
        restored_stage,
        restored_draft_profile.as_ref(),
        &restored_quality_findings,
    );

    let next_session = rebuild_custom_world_agent_session_row(
        session,
        CustomWorldAgentSessionPatch {
            progress_percent: Some(restored_progress),
            stage: Some(restored_stage),
            draft_profile_json: Some(
                restored_draft_profile
                    .as_ref()
                    .map(|value| serialize_json_value(&JsonValue::Object(value.clone())))
                    .transpose()?,
            ),
            last_assistant_reply: Some(Some(
                "已恢复到所选 checkpoint 的世界草稿状态。".to_string(),
            )),
            quality_findings_json: Some(serialize_json_value(&JsonValue::Array(
                restored_quality_findings,
            ))?),
            publish_gate_json: Some(Some(serialize_json_value(&publish_gate_to_json_value(
                &gate,
            ))?)),
            result_preview_json: Some(build_result_preview_json(
                restored_draft_profile.as_ref(),
                &gate,
                &parse_json_array_or_empty(&serialize_json_value(&JsonValue::Array(
                    snapshot
                        .get("qualityFindings")
                        .and_then(JsonValue::as_array)
                        .cloned()
                        .unwrap_or_else(Vec::new),
                ))?),
                input.submitted_at_micros,
            )?),
            updated_at_micros: Some(input.submitted_at_micros),
            ..CustomWorldAgentSessionPatch::default()
        },
    )?;
    replace_custom_world_agent_session(ctx, session, next_session);

    append_custom_world_action_result_message(
        ctx,
        &session.session_id,
        &input.operation_id,
        "已恢复到所选 checkpoint。",
        input.submitted_at_micros,
    );

    let operation = build_and_insert_custom_world_operation(
        ctx,
        &input.operation_id,
        &session.session_id,
        RpgAgentOperationType::RevertCheckpoint,
        "已回滚 checkpoint",
        &format!("会话已恢复到 checkpoint {}。", checkpoint_id),
        input.submitted_at_micros,
    );

    Ok(build_custom_world_agent_operation_snapshot(&operation))
}

fn execute_generate_characters_action(
    ctx: &ReducerContext,
    session: &CustomWorldAgentSession,
    input: &CustomWorldAgentActionExecuteInput,
    payload: &JsonMap<String, JsonValue>,
) -> Result<CustomWorldAgentOperationSnapshot, String> {
    ensure_refining_stage(session.stage, "generate_characters")?;
    let mut draft_profile = current_custom_world_draft_profile(session);
    let inserted = upsert_draft_profile_array_from_payload(
        &mut draft_profile,
        payload,
        "characters",
        "playableNpcs",
        "character",
        RpgAgentDraftCardKind::Character,
        ctx,
        &session.session_id,
        input.submitted_at_micros,
    )?;
    let inserted_story = upsert_draft_profile_array_from_payload(
        &mut draft_profile,
        payload,
        "storyNpcs",
        "storyNpcs",
        "story-npc",
        RpgAgentDraftCardKind::Character,
        ctx,
        &session.session_id,
        input.submitted_at_micros,
    )?;
    let total_inserted = inserted.saturating_add(inserted_story);
    persist_custom_world_draft_profile_update(
        ctx,
        session,
        draft_profile,
        input.submitted_at_micros,
        RpgAgentStage::ObjectRefining,
        format!("已同步 {total_inserted} 个角色草稿。"),
        "generate-characters",
        "生成角色草稿",
    )?;
    append_custom_world_action_result_message(
        ctx,
        &session.session_id,
        &input.operation_id,
        &format!("已生成并同步 {total_inserted} 个角色草稿。"),
        input.submitted_at_micros,
    );

    let operation = complete_custom_world_operation(
        ctx,
        &input.operation_id,
        &session.session_id,
        RpgAgentOperationType::GenerateCharacters,
        "角色草稿已同步",
        &format!("角色草稿已写入 draft_profile 与卡片表，新增 {total_inserted} 条。"),
        input.submitted_at_micros,
    )?;
    Ok(build_custom_world_agent_operation_snapshot(&operation))
}

fn execute_generate_landmarks_action(
    ctx: &ReducerContext,
    session: &CustomWorldAgentSession,
    input: &CustomWorldAgentActionExecuteInput,
    payload: &JsonMap<String, JsonValue>,
) -> Result<CustomWorldAgentOperationSnapshot, String> {
    ensure_refining_stage(session.stage, "generate_landmarks")?;
    let mut draft_profile = current_custom_world_draft_profile(session);
    let inserted = upsert_draft_profile_array_from_payload(
        &mut draft_profile,
        payload,
        "landmarks",
        "landmarks",
        "landmark",
        RpgAgentDraftCardKind::Landmark,
        ctx,
        &session.session_id,
        input.submitted_at_micros,
    )?;
    persist_custom_world_draft_profile_update(
        ctx,
        session,
        draft_profile,
        input.submitted_at_micros,
        RpgAgentStage::ObjectRefining,
        format!("已同步 {inserted} 个地标草稿。"),
        "generate-landmarks",
        "生成地标草稿",
    )?;
    append_custom_world_action_result_message(
        ctx,
        &session.session_id,
        &input.operation_id,
        &format!("已生成并同步 {inserted} 个地标草稿。"),
        input.submitted_at_micros,
    );

    let operation = complete_custom_world_operation(
        ctx,
        &input.operation_id,
        &session.session_id,
        RpgAgentOperationType::GenerateLandmarks,
        "地标草稿已同步",
        &format!("地标草稿已写入 draft_profile 与卡片表，新增 {inserted} 条。"),
        input.submitted_at_micros,
    )?;
    Ok(build_custom_world_agent_operation_snapshot(&operation))
}

fn execute_generate_role_assets_action(
    ctx: &ReducerContext,
    session: &CustomWorldAgentSession,
    input: &CustomWorldAgentActionExecuteInput,
    payload: &JsonMap<String, JsonValue>,
) -> Result<CustomWorldAgentOperationSnapshot, String> {
    ensure_refining_stage(session.stage, "generate_role_assets")?;
    let next_coverage = build_role_asset_coverage_json(session, payload, true)?;
    let next_session = rebuild_custom_world_agent_session_row(
        session,
        CustomWorldAgentSessionPatch {
            stage: Some(RpgAgentStage::VisualRefining),
            asset_coverage_json: Some(next_coverage),
            last_assistant_reply: Some(Some(
                "角色视觉资产槽位已生成并进入视觉打磨阶段。".to_string(),
            )),
            updated_at_micros: Some(input.submitted_at_micros),
            ..CustomWorldAgentSessionPatch::default()
        },
    )?;
    replace_custom_world_agent_session(ctx, session, next_session);
    update_role_asset_cards(
        ctx,
        &session.session_id,
        CustomWorldRoleAssetStatus::VisualReady,
        "角色主图已就绪",
        input.submitted_at_micros,
    );
    append_custom_world_action_result_message(
        ctx,
        &session.session_id,
        &input.operation_id,
        "角色视觉资产槽位已生成，角色卡片状态已刷新。",
        input.submitted_at_micros,
    );

    let operation = complete_custom_world_operation(
        ctx,
        &input.operation_id,
        &session.session_id,
        RpgAgentOperationType::GenerateRoleAssets,
        "角色资产已生成",
        "asset_coverage.roleAssets 与角色卡片视觉状态已更新。",
        input.submitted_at_micros,
    )?;
    Ok(build_custom_world_agent_operation_snapshot(&operation))
}

fn execute_sync_role_assets_action(
    ctx: &ReducerContext,
    session: &CustomWorldAgentSession,
    input: &CustomWorldAgentActionExecuteInput,
    payload: &JsonMap<String, JsonValue>,
) -> Result<CustomWorldAgentOperationSnapshot, String> {
    ensure_refining_stage(session.stage, "sync_role_assets")?;
    let next_coverage = build_role_asset_coverage_json(session, payload, false)?;
    let next_session = rebuild_custom_world_agent_session_row(
        session,
        CustomWorldAgentSessionPatch {
            stage: Some(RpgAgentStage::VisualRefining),
            asset_coverage_json: Some(next_coverage),
            last_assistant_reply: Some(Some("角色资产状态已按外部资产结果同步。".to_string())),
            updated_at_micros: Some(input.submitted_at_micros),
            ..CustomWorldAgentSessionPatch::default()
        },
    )?;
    replace_custom_world_agent_session(ctx, session, next_session);
    update_role_asset_cards(
        ctx,
        &session.session_id,
        CustomWorldRoleAssetStatus::Complete,
        "角色资产已同步",
        input.submitted_at_micros,
    );
    append_custom_world_action_result_message(
        ctx,
        &session.session_id,
        &input.operation_id,
        "角色资产结果已同步到会话覆盖率与角色卡片。",
        input.submitted_at_micros,
    );

    let operation = complete_custom_world_operation(
        ctx,
        &input.operation_id,
        &session.session_id,
        RpgAgentOperationType::SyncRoleAssets,
        "角色资产已同步",
        "asset_coverage.roleAssets 与角色卡片完成状态已更新。",
        input.submitted_at_micros,
    )?;
    Ok(build_custom_world_agent_operation_snapshot(&operation))
}

fn execute_generate_scene_assets_action(
    ctx: &ReducerContext,
    session: &CustomWorldAgentSession,
    input: &CustomWorldAgentActionExecuteInput,
    payload: &JsonMap<String, JsonValue>,
) -> Result<CustomWorldAgentOperationSnapshot, String> {
    ensure_refining_stage(session.stage, "generate_scene_assets")?;
    let next_coverage = build_scene_asset_coverage_json(session, payload, true)?;
    let next_session = rebuild_custom_world_agent_session_row(
        session,
        CustomWorldAgentSessionPatch {
            stage: Some(RpgAgentStage::VisualRefining),
            asset_coverage_json: Some(next_coverage),
            last_assistant_reply: Some(Some(
                "场景视觉资产槽位已生成并进入视觉打磨阶段。".to_string(),
            )),
            updated_at_micros: Some(input.submitted_at_micros),
            ..CustomWorldAgentSessionPatch::default()
        },
    )?;
    replace_custom_world_agent_session(ctx, session, next_session);
    append_custom_world_action_result_message(
        ctx,
        &session.session_id,
        &input.operation_id,
        "场景视觉资产槽位已生成，等待外层资产链写回对象结果。",
        input.submitted_at_micros,
    );

    let operation = complete_custom_world_operation(
        ctx,
        &input.operation_id,
        &session.session_id,
        RpgAgentOperationType::GenerateSceneAssets,
        "场景资产已生成",
        "asset_coverage.sceneAssets 已根据当前草稿刷新。",
        input.submitted_at_micros,
    )?;
    Ok(build_custom_world_agent_operation_snapshot(&operation))
}

fn execute_sync_scene_assets_action(
    ctx: &ReducerContext,
    session: &CustomWorldAgentSession,
    input: &CustomWorldAgentActionExecuteInput,
    payload: &JsonMap<String, JsonValue>,
) -> Result<CustomWorldAgentOperationSnapshot, String> {
    ensure_refining_stage(session.stage, "sync_scene_assets")?;
    let next_coverage = build_scene_asset_coverage_json(session, payload, false)?;
    let next_session = rebuild_custom_world_agent_session_row(
        session,
        CustomWorldAgentSessionPatch {
            stage: Some(RpgAgentStage::VisualRefining),
            asset_coverage_json: Some(next_coverage),
            last_assistant_reply: Some(Some("场景资产状态已按外部资产结果同步。".to_string())),
            updated_at_micros: Some(input.submitted_at_micros),
            ..CustomWorldAgentSessionPatch::default()
        },
    )?;
    replace_custom_world_agent_session(ctx, session, next_session);
    append_custom_world_action_result_message(
        ctx,
        &session.session_id,
        &input.operation_id,
        "场景资产结果已同步到会话覆盖率。",
        input.submitted_at_micros,
    );

    let operation = complete_custom_world_operation(
        ctx,
        &input.operation_id,
        &session.session_id,
        RpgAgentOperationType::SyncSceneAssets,
        "场景资产已同步",
        "asset_coverage.sceneAssets 已更新为同步结果。",
        input.submitted_at_micros,
    )?;
    Ok(build_custom_world_agent_operation_snapshot(&operation))
}

fn execute_expand_long_tail_action(
    ctx: &ReducerContext,
    session: &CustomWorldAgentSession,
    input: &CustomWorldAgentActionExecuteInput,
    payload: &JsonMap<String, JsonValue>,
) -> Result<CustomWorldAgentOperationSnapshot, String> {
    ensure_long_tail_stage(session.stage, "expand_long_tail")?;
    let mut draft_profile = current_custom_world_draft_profile(session);
    merge_long_tail_payload(&mut draft_profile, payload);
    let gate = summarize_publish_gate_from_json(
        &session.session_id,
        RpgAgentStage::LongTailReview,
        Some(&draft_profile),
        &parse_json_array_or_empty(&session.quality_findings_json),
    );
    let next_session = rebuild_custom_world_agent_session_row(
        session,
        CustomWorldAgentSessionPatch {
            stage: Some(if gate.publish_ready {
                RpgAgentStage::ReadyToPublish
            } else {
                RpgAgentStage::LongTailReview
            }),
            draft_profile_json: Some(Some(serialize_json_value(&JsonValue::Object(
                draft_profile.clone(),
            ))?)),
            publish_gate_json: Some(Some(serialize_json_value(&publish_gate_to_json_value(
                &gate,
            ))?)),
            result_preview_json: Some(build_result_preview_json(
                Some(&draft_profile),
                &gate,
                &parse_json_array_or_empty(&session.quality_findings_json),
                input.submitted_at_micros,
            )?),
            checkpoints_json: Some(append_checkpoint_json(
                &session.checkpoints_json,
                &build_session_checkpoint_value("expand-long-tail", "补齐长尾内容", session),
            )?),
            last_assistant_reply: Some(Some("长尾内容已合并，并重新计算发布门禁。".to_string())),
            updated_at_micros: Some(input.submitted_at_micros),
            ..CustomWorldAgentSessionPatch::default()
        },
    )?;
    replace_custom_world_agent_session(ctx, session, next_session);
    append_custom_world_action_result_message(
        ctx,
        &session.session_id,
        &input.operation_id,
        "长尾内容已合并到当前世界草稿，并刷新发布门禁。",
        input.submitted_at_micros,
    );

    let operation = complete_custom_world_operation(
        ctx,
        &input.operation_id,
        &session.session_id,
        RpgAgentOperationType::ExpandLongTail,
        "长尾内容已扩展",
        "世界草稿、预览和发布门禁已同步刷新。",
        input.submitted_at_micros,
    )?;
    Ok(build_custom_world_agent_operation_snapshot(&operation))
}

fn current_custom_world_draft_profile(
    session: &CustomWorldAgentSession,
) -> JsonMap<String, JsonValue> {
    ensure_minimal_draft_profile(
        parse_optional_session_object(session.draft_profile_json.as_deref()).unwrap_or_default(),
        &session.seed_text,
    )
}

fn persist_custom_world_draft_profile_update(
    ctx: &ReducerContext,
    session: &CustomWorldAgentSession,
    draft_profile: JsonMap<String, JsonValue>,
    updated_at_micros: i64,
    stage: RpgAgentStage,
    assistant_reply: String,
    checkpoint_suffix: &str,
    checkpoint_label: &str,
) -> Result<(), String> {
    let gate = summarize_publish_gate_from_json(
        &session.session_id,
        stage,
        Some(&draft_profile),
        &parse_json_array_or_empty(&session.quality_findings_json),
    );
    let next_session = rebuild_custom_world_agent_session_row(
        session,
        CustomWorldAgentSessionPatch {
            stage: Some(stage),
            draft_profile_json: Some(Some(serialize_json_value(&JsonValue::Object(
                draft_profile.clone(),
            ))?)),
            publish_gate_json: Some(Some(serialize_json_value(&publish_gate_to_json_value(
                &gate,
            ))?)),
            result_preview_json: Some(build_result_preview_json(
                Some(&draft_profile),
                &gate,
                &parse_json_array_or_empty(&session.quality_findings_json),
                updated_at_micros,
            )?),
            checkpoints_json: Some(append_checkpoint_json(
                &session.checkpoints_json,
                &build_session_checkpoint_value(checkpoint_suffix, checkpoint_label, session),
            )?),
            last_assistant_reply: Some(Some(assistant_reply)),
            updated_at_micros: Some(updated_at_micros),
            ..CustomWorldAgentSessionPatch::default()
        },
    )?;
    replace_custom_world_agent_session(ctx, session, next_session);
    Ok(())
}

fn upsert_draft_profile_array_from_payload(
    draft_profile: &mut JsonMap<String, JsonValue>,
    payload: &JsonMap<String, JsonValue>,
    payload_key: &str,
    profile_key: &str,
    id_prefix: &str,
    card_kind: RpgAgentDraftCardKind,
    ctx: &ReducerContext,
    session_id: &str,
    updated_at_micros: i64,
) -> Result<u32, String> {
    let payload_items = payload
        .get(payload_key)
        .and_then(JsonValue::as_array)
        .cloned()
        .unwrap_or_else(|| {
            draft_profile
                .get(profile_key)
                .and_then(JsonValue::as_array)
                .cloned()
                .unwrap_or_default()
        });
    if payload_items.is_empty() {
        return Ok(0);
    }

    let mut merged = draft_profile
        .get(profile_key)
        .and_then(JsonValue::as_array)
        .cloned()
        .unwrap_or_default();
    let mut inserted = 0u32;
    for (index, item) in payload_items.into_iter().enumerate() {
        let Some(mut object) = item.as_object().cloned() else {
            continue;
        };
        let id = read_optional_text_field(&object, &["id"])
            .unwrap_or_else(|| format!("{id_prefix}-{}-{}", session_id, index + 1));
        object.insert("id".to_string(), JsonValue::String(id.clone()));
        let value = JsonValue::Object(object.clone());
        upsert_json_array_object_by_id(&mut merged, value);
        upsert_custom_world_entity_card(
            ctx,
            session_id,
            card_kind,
            &id,
            &object,
            updated_at_micros,
        )?;
        inserted = inserted.saturating_add(1);
    }
    draft_profile.insert(profile_key.to_string(), JsonValue::Array(merged));
    Ok(inserted)
}

fn upsert_json_array_object_by_id(items: &mut Vec<JsonValue>, next: JsonValue) {
    let Some(next_id) = next
        .get("id")
        .and_then(JsonValue::as_str)
        .map(ToOwned::to_owned)
    else {
        items.push(next);
        return;
    };
    if let Some(existing) = items
        .iter_mut()
        .find(|entry| entry.get("id").and_then(JsonValue::as_str) == Some(next_id.as_str()))
    {
        *existing = next;
    } else {
        items.push(next);
    }
}

fn upsert_custom_world_entity_card(
    ctx: &ReducerContext,
    session_id: &str,
    kind: RpgAgentDraftCardKind,
    entity_id: &str,
    object: &JsonMap<String, JsonValue>,
    updated_at_micros: i64,
) -> Result<(), String> {
    let card_id = format!(
        "custom-world:{}:{}:{}",
        session_id,
        kind.as_str(),
        entity_id
    );
    let title = read_optional_text_field(object, &["name", "title"])
        .unwrap_or_else(|| entity_id.to_string());
    let subtitle =
        read_optional_text_field(object, &["role", "subtitle", "purpose"]).unwrap_or_default();
    let summary = read_optional_text_field(
        object,
        &["summary", "notes", "publicGoal", "description", "mood"],
    )
    .unwrap_or_else(|| title.clone());
    let detail_payload_json = serialize_json_value(&json!({
        "id": card_id,
        "entityId": entity_id,
        "kind": kind.as_str(),
        "title": title,
        "sections": [
            { "id": "title", "label": "标题", "value": title },
            { "id": "subtitle", "label": "副标题", "value": subtitle },
            { "id": "summary", "label": "摘要", "value": summary },
        ],
        "linkedIds": [entity_id],
        "locked": false,
        "editable": false,
        "editableSectionIds": [],
        "warningMessages": [],
    }))?;
    let existing = ctx
        .db
        .custom_world_draft_card()
        .card_id()
        .find(&card_id)
        .filter(|row| row.session_id == session_id);
    let next = CustomWorldDraftCard {
        card_id: card_id.clone(),
        session_id: session_id.to_string(),
        kind,
        status: RpgAgentDraftCardStatus::Suggested,
        title,
        subtitle,
        summary,
        linked_ids_json: serialize_json_value(&json!([entity_id]))?,
        warning_count: 0,
        asset_status: None,
        asset_status_label: None,
        detail_payload_json: Some(detail_payload_json),
        created_at: existing
            .as_ref()
            .map(|row| row.created_at)
            .unwrap_or_else(|| Timestamp::from_micros_since_unix_epoch(updated_at_micros)),
        updated_at: Timestamp::from_micros_since_unix_epoch(updated_at_micros),
    };
    if let Some(existing) = existing {
        replace_custom_world_draft_card(ctx, &existing, next);
    } else {
        ctx.db.custom_world_draft_card().insert(next);
    }
    Ok(())
}

fn build_role_asset_coverage_json(
    session: &CustomWorldAgentSession,
    payload: &JsonMap<String, JsonValue>,
    generated: bool,
) -> Result<String, String> {
    let mut coverage = parse_optional_session_object(Some(&session.asset_coverage_json))
        .unwrap_or_else(JsonMap::new);
    let profile = current_custom_world_draft_profile(session);
    let mut role_assets = payload
        .get("roleAssets")
        .and_then(JsonValue::as_array)
        .cloned()
        .unwrap_or_else(|| build_role_asset_entries_from_profile(&profile, generated));
    if role_assets.is_empty() {
        role_assets = build_role_asset_entries_from_profile(&profile, generated);
    }
    let all_ready = !role_assets.is_empty()
        && role_assets
            .iter()
            .all(|entry| asset_entry_ready(entry, &["visualReady", "animationsReady"]));
    coverage.insert("roleAssets".to_string(), JsonValue::Array(role_assets));
    coverage.insert("allRoleAssetsReady".to_string(), JsonValue::Bool(all_ready));
    coverage
        .entry("sceneAssets".to_string())
        .or_insert_with(|| JsonValue::Array(Vec::new()));
    coverage
        .entry("allSceneAssetsReady".to_string())
        .or_insert_with(|| JsonValue::Bool(false));
    serialize_json_value(&JsonValue::Object(coverage))
}

fn build_scene_asset_coverage_json(
    session: &CustomWorldAgentSession,
    payload: &JsonMap<String, JsonValue>,
    generated: bool,
) -> Result<String, String> {
    let mut coverage = parse_optional_session_object(Some(&session.asset_coverage_json))
        .unwrap_or_else(JsonMap::new);
    let profile = current_custom_world_draft_profile(session);
    let mut scene_assets = payload
        .get("sceneAssets")
        .and_then(JsonValue::as_array)
        .cloned()
        .unwrap_or_else(|| build_scene_asset_entries_from_profile(&profile, generated));
    if scene_assets.is_empty() {
        scene_assets = build_scene_asset_entries_from_profile(&profile, generated);
    }
    let all_ready = !scene_assets.is_empty()
        && scene_assets
            .iter()
            .all(|entry| asset_entry_ready(entry, &["visualReady", "synced"]));
    coverage.insert("sceneAssets".to_string(), JsonValue::Array(scene_assets));
    coverage.insert(
        "allSceneAssetsReady".to_string(),
        JsonValue::Bool(all_ready),
    );
    coverage
        .entry("roleAssets".to_string())
        .or_insert_with(|| JsonValue::Array(Vec::new()));
    coverage
        .entry("allRoleAssetsReady".to_string())
        .or_insert_with(|| JsonValue::Bool(false));
    serialize_json_value(&JsonValue::Object(coverage))
}

fn build_role_asset_entries_from_profile(
    profile: &JsonMap<String, JsonValue>,
    generated: bool,
) -> Vec<JsonValue> {
    collect_profile_entities(profile, &["playableNpcs", "storyNpcs"])
        .into_iter()
        .map(|entry| {
            let id = entry
                .get("id")
                .and_then(JsonValue::as_str)
                .unwrap_or("role");
            json!({
                "roleId": id,
                "name": read_optional_text_field(&entry, &["name", "title"]).unwrap_or_else(|| id.to_string()),
                "visualReady": generated,
                "animationsReady": !generated,
            })
        })
        .collect()
}

fn build_scene_asset_entries_from_profile(
    profile: &JsonMap<String, JsonValue>,
    generated: bool,
) -> Vec<JsonValue> {
    collect_profile_entities(profile, &["landmarks", "sceneChapters", "sceneChapterBlueprints"])
        .into_iter()
        .map(|entry| {
            let id = entry
                .get("id")
                .and_then(JsonValue::as_str)
                .unwrap_or("scene");
            json!({
                "sceneId": id,
                "name": read_optional_text_field(&entry, &["name", "title"]).unwrap_or_else(|| id.to_string()),
                "visualReady": generated,
                "synced": !generated,
            })
        })
        .collect()
}

fn collect_profile_entities(
    profile: &JsonMap<String, JsonValue>,
    keys: &[&str],
) -> Vec<JsonMap<String, JsonValue>> {
    let mut result = Vec::new();
    for key in keys {
        if let Some(entries) = profile.get(*key).and_then(JsonValue::as_array) {
            for entry in entries {
                if let Some(object) = entry.as_object() {
                    result.push(object.clone());
                }
            }
        }
    }
    result
}

fn asset_entry_ready(entry: &JsonValue, keys: &[&str]) -> bool {
    keys.iter().all(|key| {
        entry
            .get(*key)
            .and_then(JsonValue::as_bool)
            .unwrap_or(false)
    })
}

fn update_role_asset_cards(
    ctx: &ReducerContext,
    session_id: &str,
    status: CustomWorldRoleAssetStatus,
    label: &str,
    updated_at_micros: i64,
) {
    for card in ctx
        .db
        .custom_world_draft_card()
        .by_custom_world_draft_card_session_id()
        .filter(&session_id.to_string())
        .filter(|row| row.kind == RpgAgentDraftCardKind::Character)
    {
        replace_custom_world_draft_card(
            ctx,
            &card,
            CustomWorldDraftCard {
                card_id: card.card_id.clone(),
                session_id: card.session_id.clone(),
                kind: card.kind,
                status: card.status,
                title: card.title.clone(),
                subtitle: card.subtitle.clone(),
                summary: card.summary.clone(),
                linked_ids_json: card.linked_ids_json.clone(),
                warning_count: card.warning_count,
                asset_status: Some(status),
                asset_status_label: Some(label.to_string()),
                detail_payload_json: card.detail_payload_json.clone(),
                created_at: card.created_at,
                updated_at: Timestamp::from_micros_since_unix_epoch(updated_at_micros),
            },
        );
    }
}

fn merge_long_tail_payload(
    draft_profile: &mut JsonMap<String, JsonValue>,
    payload: &JsonMap<String, JsonValue>,
) {
    for key in [
        "coreConflicts",
        "chapters",
        "sceneChapters",
        "sceneChapterBlueprints",
        "sidequestSeeds",
        "carrierHooks",
    ] {
        if let Some(entries) = payload.get(key).and_then(JsonValue::as_array) {
            let mut merged = draft_profile
                .get(key)
                .and_then(JsonValue::as_array)
                .cloned()
                .unwrap_or_default();
            for entry in entries {
                if let Some(object) = entry.as_object() {
                    upsert_json_array_object_by_id(&mut merged, JsonValue::Object(object.clone()));
                } else if !merged.contains(entry) {
                    merged.push(entry.clone());
                }
            }
            draft_profile.insert(key.to_string(), JsonValue::Array(merged));
        }
    }
    for key in ["worldHook", "playerPremise", "summary", "subtitle"] {
        if let Some(value) = payload
            .get(key)
            .and_then(JsonValue::as_str)
            .map(str::trim)
            .filter(|value| !value.is_empty())
        {
            draft_profile.insert(key.to_string(), JsonValue::String(value.to_string()));
        }
    }
}

#[derive(Clone, Debug, Default)]
struct CustomWorldAgentSessionPatch {
    current_turn: Option<u32>,
    progress_percent: Option<u32>,
    stage: Option<RpgAgentStage>,
    focus_card_id: Option<Option<String>>,
    anchor_content_json: Option<String>,
    creator_intent_json: Option<Option<String>>,
    creator_intent_readiness_json: Option<String>,
    anchor_pack_json: Option<Option<String>>,
    lock_state_json: Option<Option<String>>,
    draft_profile_json: Option<Option<String>>,
    last_assistant_reply: Option<Option<String>>,
    publish_gate_json: Option<Option<String>>,
    result_preview_json: Option<Option<String>>,
    pending_clarifications_json: Option<String>,
    quality_findings_json: Option<String>,
    suggested_actions_json: Option<String>,
    recommended_replies_json: Option<String>,
    asset_coverage_json: Option<String>,
    checkpoints_json: Option<String>,
    updated_at_micros: Option<i64>,
}

#[derive(Clone, Debug, Default)]
struct CustomWorldAgentOperationPatch {
    status: Option<RpgAgentOperationStatus>,
    phase_label: Option<String>,
    phase_detail: Option<String>,
    progress: Option<u32>,
    error_message: Option<Option<String>>,
    updated_at_micros: Option<i64>,
}

fn build_custom_world_publish_gate_from_session(
    session: &CustomWorldAgentSession,
) -> CustomWorldPublishGateSnapshot {
    let quality_findings = parse_json_array_or_empty(&session.quality_findings_json);
    summarize_publish_gate_from_json(
        &session.session_id,
        session.stage,
        parse_optional_session_object(session.draft_profile_json.as_deref()).as_ref(),
        &quality_findings,
    )
}

fn summarize_publish_gate_from_json(
    session_id: &str,
    stage: RpgAgentStage,
    draft_profile: Option<&JsonMap<String, JsonValue>>,
    quality_findings: &[JsonValue],
) -> CustomWorldPublishGateSnapshot {
    let profile_id = draft_profile
        .and_then(|profile| read_optional_text_field(profile, &["legacyResultProfile.id", "id"]))
        .unwrap_or_else(|| format!("agent-draft-{session_id}"));
    let mut blockers = Vec::new();

    if draft_profile.is_none() {
        blockers.push(CustomWorldPublishBlockerSnapshot {
            blocker_id: "publish_empty_draft".to_string(),
            code: "publish_empty_draft".to_string(),
            message: "当前世界草稿为空，无法发布。".to_string(),
        });
    }

    if let Some(profile) = draft_profile {
        if read_optional_text_field(
            profile,
            &[
                "worldHook",
                "creatorIntent.worldHook",
                "anchorContent.worldPromise",
                "anchorContent.worldPromise.hook",
                "settingText",
            ],
        )
        .is_none()
        {
            blockers.push(CustomWorldPublishBlockerSnapshot {
                blocker_id: "publish_missing_world_hook".to_string(),
                code: "publish_missing_world_hook".to_string(),
                message: "当前世界缺少 world hook，发布前需要先补齐世界一句话钩子。".to_string(),
            });
        }
        if read_optional_text_field(
            profile,
            &[
                "playerPremise",
                "creatorIntent.playerPremise",
                "anchorContent.playerEntryPoint",
                "anchorContent.playerEntryPoint.openingIdentity",
                "anchorContent.playerEntryPoint.openingProblem",
                "anchorContent.playerEntryPoint.entryMotivation",
            ],
        )
        .is_none()
        {
            blockers.push(CustomWorldPublishBlockerSnapshot {
                blocker_id: "publish_missing_player_premise".to_string(),
                code: "publish_missing_player_premise".to_string(),
                message: "当前世界缺少玩家身份与切入前提，发布前需要先补齐玩家 premise。"
                    .to_string(),
            });
        }
        if !json_array_has_non_empty_text(profile.get("coreConflicts")) {
            blockers.push(CustomWorldPublishBlockerSnapshot {
                blocker_id: "publish_missing_core_conflict".to_string(),
                code: "publish_missing_core_conflict".to_string(),
                message: "当前世界缺少核心冲突，发布前需要先补齐核心冲突。".to_string(),
            });
        }
        let has_main_chapter = profile
            .get("chapters")
            .and_then(JsonValue::as_array)
            .map(|value| !value.is_empty())
            .unwrap_or(false)
            || profile
                .get("sceneChapterBlueprints")
                .and_then(JsonValue::as_array)
                .map(|value| !value.is_empty())
                .unwrap_or(false)
            || profile
                .get("sceneChapters")
                .and_then(JsonValue::as_array)
                .map(|value| !value.is_empty())
                .unwrap_or(false);
        if !has_main_chapter {
            blockers.push(CustomWorldPublishBlockerSnapshot {
                blocker_id: "publish_missing_main_chapter".to_string(),
                code: "publish_missing_main_chapter".to_string(),
                message: "当前世界还没有主线章节草稿，发布前至少要保留主线第一幕。".to_string(),
            });
        }
        let has_scene_act = profile
            .get("sceneChapterBlueprints")
            .or_else(|| profile.get("sceneChapters"))
            .and_then(JsonValue::as_array)
            .map(|chapters| {
                chapters.iter().any(|chapter| {
                    chapter
                        .get("acts")
                        .and_then(JsonValue::as_array)
                        .map(|acts| !acts.is_empty())
                        .unwrap_or(false)
                })
            })
            .unwrap_or(false);
        if !has_scene_act {
            blockers.push(CustomWorldPublishBlockerSnapshot {
                blocker_id: "publish_missing_first_act".to_string(),
                code: "publish_missing_first_act".to_string(),
                message: "当前世界还没有主线第一幕，发布前至少要保留一个场景幕。".to_string(),
            });
        }
    }

    for finding in quality_findings {
        if finding.get("severity").and_then(JsonValue::as_str) == Some("blocker") {
            blockers.push(CustomWorldPublishBlockerSnapshot {
                blocker_id: finding
                    .get("id")
                    .and_then(JsonValue::as_str)
                    .unwrap_or("publish-quality-blocker")
                    .to_string(),
                code: finding
                    .get("code")
                    .and_then(JsonValue::as_str)
                    .unwrap_or("publish_quality_blocker")
                    .to_string(),
                message: finding
                    .get("message")
                    .and_then(JsonValue::as_str)
                    .unwrap_or("当前世界仍存在 blocker。")
                    .to_string(),
            });
        }
    }

    let blocker_count = blockers.len() as u32;
    let publish_ready = blocker_count == 0;
    CustomWorldPublishGateSnapshot {
        profile_id,
        blockers,
        blocker_count,
        publish_ready,
        can_enter_world: stage == RpgAgentStage::Published && publish_ready,
    }
}

fn publish_gate_to_json_value(gate: &CustomWorldPublishGateSnapshot) -> JsonValue {
    json!({
        "profileId": gate.profile_id,
        "blockers": gate.blockers.iter().map(|entry| {
            json!({
                "id": entry.blocker_id,
                "code": entry.code,
                "message": entry.message,
            })
        }).collect::<Vec<_>>(),
        "blockerCount": gate.blocker_count,
        "publishReady": gate.publish_ready,
        "canEnterWorld": gate.can_enter_world,
    })
}

fn build_result_preview_json(
    draft_profile: Option<&JsonMap<String, JsonValue>>,
    gate: &CustomWorldPublishGateSnapshot,
    quality_findings: &[JsonValue],
    generated_at_micros: i64,
) -> Result<Option<String>, String> {
    let Some(profile) = draft_profile else {
        return Ok(None);
    };

    serialize_json_value(&json!({
        "preview": JsonValue::Object(profile.clone()),
        "source": "session_preview",
        "generatedAt": format_timestamp_micros(generated_at_micros),
        "qualityFindings": quality_findings,
        "blockers": gate.blockers.iter().map(|entry| {
            json!({
                "id": entry.blocker_id,
                "code": entry.code,
                "message": entry.message,
            })
        }).collect::<Vec<_>>(),
        "publishReady": gate.publish_ready,
        "canEnterWorld": gate.can_enter_world,
    }))
    .map(Some)
}

fn build_supported_actions_json(
    stage: RpgAgentStage,
    progress_percent: u32,
    gate: &CustomWorldPublishGateSnapshot,
    checkpoints: &[JsonValue],
) -> Vec<JsonValue> {
    let has_checkpoint = checkpoints
        .iter()
        .any(|entry| entry.get("snapshot").is_some());
    let draft_refining_enabled = matches!(
        stage,
        RpgAgentStage::ObjectRefining | RpgAgentStage::VisualRefining
    );
    let long_tail_enabled = matches!(
        stage,
        RpgAgentStage::ObjectRefining
            | RpgAgentStage::VisualRefining
            | RpgAgentStage::LongTailReview
            | RpgAgentStage::ReadyToPublish
    );

    vec![
        build_supported_action_json(
            "draft_foundation",
            progress_percent >= 100,
            (progress_percent < 100).then(|| "draft_foundation requires progressPercent >= 100".to_string()),
        ),
        build_supported_action_json(
            "update_draft_card",
            draft_refining_enabled,
            (!draft_refining_enabled).then(|| {
                "update_draft_card is only available during object_refining or visual_refining"
                    .to_string()
            }),
        ),
        build_supported_action_json(
            "sync_result_profile",
            draft_refining_enabled,
            (!draft_refining_enabled).then(|| {
                "sync_result_profile is only available during object_refining or visual_refining"
                    .to_string()
            }),
        ),
        build_supported_action_json(
            "generate_characters",
            draft_refining_enabled,
            (!draft_refining_enabled).then(|| {
                "generate_characters is only available during object_refining or visual_refining"
                    .to_string()
            }),
        ),
        build_supported_action_json(
            "generate_landmarks",
            draft_refining_enabled,
            (!draft_refining_enabled).then(|| {
                "generate_landmarks is only available during object_refining or visual_refining"
                    .to_string()
            }),
        ),
        build_supported_action_json(
            "generate_role_assets",
            draft_refining_enabled,
            (!draft_refining_enabled).then(|| {
                "generate_role_assets is only available during object_refining or visual_refining"
                    .to_string()
            }),
        ),
        build_supported_action_json(
            "sync_role_assets",
            draft_refining_enabled,
            (!draft_refining_enabled).then(|| {
                "sync_role_assets is only available during object_refining or visual_refining"
                    .to_string()
            }),
        ),
        build_supported_action_json(
            "generate_scene_assets",
            draft_refining_enabled,
            (!draft_refining_enabled).then(|| {
                "generate_scene_assets is only available during object_refining or visual_refining"
                    .to_string()
            }),
        ),
        build_supported_action_json(
            "sync_scene_assets",
            draft_refining_enabled,
            (!draft_refining_enabled).then(|| {
                "sync_scene_assets is only available during object_refining or visual_refining"
                    .to_string()
            }),
        ),
        build_supported_action_json(
            "expand_long_tail",
            long_tail_enabled,
            (!long_tail_enabled).then(|| {
                "expand_long_tail is only available during object_refining, visual_refining, long_tail_review or ready_to_publish".to_string()
            }),
        ),
        build_supported_action_json(
            "publish_world",
            long_tail_enabled && gate.publish_ready,
            (!long_tail_enabled)
                .then(|| {
                    "publish_world is only available during object_refining, visual_refining, long_tail_review or ready_to_publish".to_string()
                })
                .or_else(|| (!gate.publish_ready).then(|| "publish_world requires publish gate without blockers".to_string())),
        ),
        build_supported_action_json(
            "revert_checkpoint",
            long_tail_enabled && has_checkpoint,
            (!long_tail_enabled)
                .then(|| {
                    "revert_checkpoint is only available during object_refining, visual_refining, long_tail_review or ready_to_publish".to_string()
                })
                .or_else(|| (!has_checkpoint).then(|| "revert_checkpoint requires at least one restorable checkpoint snapshot".to_string())),
        ),
    ]
}

fn build_supported_action_json(action: &str, enabled: bool, reason: Option<String>) -> JsonValue {
    json!({
        "action": action,
        "enabled": enabled,
        "reason": reason,
    })
}

fn build_custom_world_draft_card_detail_snapshot(
    card: &CustomWorldDraftCard,
) -> Result<CustomWorldDraftCardDetailSnapshot, String> {
    if let Some(detail_payload_json) = card.detail_payload_json.as_deref() {
        let detail_value =
            serde_json::from_str::<JsonValue>(detail_payload_json).map_err(|error| {
                format!("custom_world_draft_card.detail_payload_json 非法: {error}")
            })?;
        if let Some(object) = detail_value.as_object() {
            let sections = object
                .get("sections")
                .and_then(JsonValue::as_array)
                .map(|entries| {
                    entries
                        .iter()
                        .filter_map(|entry| {
                            let object = entry.as_object()?;
                            Some(CustomWorldDraftCardDetailSectionSnapshot {
                                section_id: object.get("id")?.as_str()?.to_string(),
                                label: object
                                    .get("label")
                                    .and_then(JsonValue::as_str)
                                    .unwrap_or_default()
                                    .to_string(),
                                value: object
                                    .get("value")
                                    .and_then(JsonValue::as_str)
                                    .unwrap_or_default()
                                    .to_string(),
                            })
                        })
                        .collect::<Vec<_>>()
                })
                .unwrap_or_else(|| build_fallback_card_sections(&card));

            return Ok(CustomWorldDraftCardDetailSnapshot {
                card_id: card.card_id.clone(),
                kind: card.kind,
                title: object
                    .get("title")
                    .and_then(JsonValue::as_str)
                    .unwrap_or(card.title.as_str())
                    .to_string(),
                sections,
                linked_ids_json: card.linked_ids_json.clone(),
                locked: object
                    .get("locked")
                    .and_then(JsonValue::as_bool)
                    .unwrap_or(false),
                editable: object
                    .get("editable")
                    .and_then(JsonValue::as_bool)
                    .unwrap_or(false),
                editable_section_ids_json: serialize_json_value(
                    object
                        .get("editableSectionIds")
                        .unwrap_or(&JsonValue::Array(Vec::new())),
                )?,
                warning_messages_json: serialize_json_value(
                    object
                        .get("warningMessages")
                        .unwrap_or(&JsonValue::Array(Vec::new())),
                )?,
                asset_status: card.asset_status,
                asset_status_label: card.asset_status_label.clone(),
            });
        }
    }

    Ok(CustomWorldDraftCardDetailSnapshot {
        card_id: card.card_id.clone(),
        kind: card.kind,
        title: card.title.clone(),
        sections: build_fallback_card_sections(card),
        linked_ids_json: card.linked_ids_json.clone(),
        locked: false,
        editable: false,
        editable_section_ids_json: "[]".to_string(),
        warning_messages_json: "[]".to_string(),
        asset_status: card.asset_status,
        asset_status_label: card.asset_status_label.clone(),
    })
}

fn build_fallback_card_sections(
    card: &CustomWorldDraftCard,
) -> Vec<CustomWorldDraftCardDetailSectionSnapshot> {
    vec![
        CustomWorldDraftCardDetailSectionSnapshot {
            section_id: "title".to_string(),
            label: "标题".to_string(),
            value: card.title.clone(),
        },
        CustomWorldDraftCardDetailSectionSnapshot {
            section_id: "subtitle".to_string(),
            label: "副标题".to_string(),
            value: card.subtitle.clone(),
        },
        CustomWorldDraftCardDetailSectionSnapshot {
            section_id: "summary".to_string(),
            label: "摘要".to_string(),
            value: card.summary.clone(),
        },
    ]
}

fn build_fallback_card_sections_json(card: &CustomWorldDraftCard) -> Vec<JsonValue> {
    build_fallback_card_sections(card)
        .into_iter()
        .map(|section| {
            json!({
                "id": section.section_id,
                "label": section.label,
                "value": section.value,
            })
        })
        .collect()
}

fn rebuild_custom_world_agent_session_row(
    current: &CustomWorldAgentSession,
    patch: CustomWorldAgentSessionPatch,
) -> Result<CustomWorldAgentSession, String> {
    Ok(CustomWorldAgentSession {
        session_id: current.session_id.clone(),
        owner_user_id: current.owner_user_id.clone(),
        seed_text: current.seed_text.clone(),
        current_turn: patch.current_turn.unwrap_or(current.current_turn),
        progress_percent: patch.progress_percent.unwrap_or(current.progress_percent),
        stage: patch.stage.unwrap_or(current.stage),
        focus_card_id: patch
            .focus_card_id
            .unwrap_or_else(|| current.focus_card_id.clone()),
        anchor_content_json: patch
            .anchor_content_json
            .unwrap_or_else(|| current.anchor_content_json.clone()),
        creator_intent_json: patch
            .creator_intent_json
            .unwrap_or_else(|| current.creator_intent_json.clone()),
        creator_intent_readiness_json: patch
            .creator_intent_readiness_json
            .unwrap_or_else(|| current.creator_intent_readiness_json.clone()),
        anchor_pack_json: patch
            .anchor_pack_json
            .unwrap_or_else(|| current.anchor_pack_json.clone()),
        lock_state_json: patch
            .lock_state_json
            .unwrap_or_else(|| current.lock_state_json.clone()),
        draft_profile_json: patch
            .draft_profile_json
            .unwrap_or_else(|| current.draft_profile_json.clone()),
        last_assistant_reply: patch
            .last_assistant_reply
            .unwrap_or_else(|| current.last_assistant_reply.clone()),
        publish_gate_json: patch
            .publish_gate_json
            .unwrap_or_else(|| current.publish_gate_json.clone()),
        result_preview_json: patch
            .result_preview_json
            .unwrap_or_else(|| current.result_preview_json.clone()),
        pending_clarifications_json: patch
            .pending_clarifications_json
            .unwrap_or_else(|| current.pending_clarifications_json.clone()),
        quality_findings_json: patch
            .quality_findings_json
            .unwrap_or_else(|| current.quality_findings_json.clone()),
        suggested_actions_json: patch
            .suggested_actions_json
            .unwrap_or_else(|| current.suggested_actions_json.clone()),
        recommended_replies_json: patch
            .recommended_replies_json
            .unwrap_or_else(|| current.recommended_replies_json.clone()),
        asset_coverage_json: patch
            .asset_coverage_json
            .unwrap_or_else(|| current.asset_coverage_json.clone()),
        checkpoints_json: patch
            .checkpoints_json
            .unwrap_or_else(|| current.checkpoints_json.clone()),
        created_at: current.created_at,
        updated_at: Timestamp::from_micros_since_unix_epoch(
            patch
                .updated_at_micros
                .unwrap_or_else(|| current.updated_at.to_micros_since_unix_epoch()),
        ),
    })
}

fn rebuild_custom_world_agent_operation_row(
    current: &CustomWorldAgentOperation,
    patch: CustomWorldAgentOperationPatch,
) -> Result<CustomWorldAgentOperation, String> {
    let phase_label = patch
        .phase_label
        .unwrap_or_else(|| current.phase_label.clone());
    let progress = patch.progress.unwrap_or(current.progress);
    validate_custom_world_agent_operation_fields(
        &current.operation_id,
        &current.session_id,
        &phase_label,
        progress,
    )
    .map_err(|error| error.to_string())?;

    Ok(CustomWorldAgentOperation {
        operation_id: current.operation_id.clone(),
        session_id: current.session_id.clone(),
        operation_type: current.operation_type,
        status: patch.status.unwrap_or(current.status),
        phase_label,
        phase_detail: patch
            .phase_detail
            .unwrap_or_else(|| current.phase_detail.clone()),
        progress,
        error_message: patch
            .error_message
            .unwrap_or_else(|| current.error_message.clone()),
        created_at: current.created_at,
        updated_at: Timestamp::from_micros_since_unix_epoch(
            patch
                .updated_at_micros
                .unwrap_or_else(|| current.updated_at.to_micros_since_unix_epoch()),
        ),
    })
}

fn replace_custom_world_agent_session(
    ctx: &ReducerContext,
    current: &CustomWorldAgentSession,
    next: CustomWorldAgentSession,
) {
    ctx.db
        .custom_world_agent_session()
        .session_id()
        .delete(&current.session_id);
    ctx.db.custom_world_agent_session().insert(next);
}

fn replace_custom_world_agent_operation(
    ctx: &ReducerContext,
    current: &CustomWorldAgentOperation,
    next: CustomWorldAgentOperation,
) {
    ctx.db
        .custom_world_agent_operation()
        .operation_id()
        .delete(&current.operation_id);
    ctx.db.custom_world_agent_operation().insert(next);
}

fn replace_custom_world_draft_card(
    ctx: &ReducerContext,
    current: &CustomWorldDraftCard,
    next: CustomWorldDraftCard,
) {
    ctx.db
        .custom_world_draft_card()
        .card_id()
        .delete(&current.card_id);
    ctx.db.custom_world_draft_card().insert(next);
}

fn complete_custom_world_operation(
    ctx: &ReducerContext,
    operation_id: &str,
    session_id: &str,
    operation_type: RpgAgentOperationType,
    phase_label: &str,
    phase_detail: &str,
    timestamp_micros: i64,
) -> Result<CustomWorldAgentOperation, String> {
    if let Some(current) = ctx
        .db
        .custom_world_agent_operation()
        .operation_id()
        .find(&operation_id.to_string())
    {
        if current.session_id != session_id {
            return Err("custom_world_agent_operation.session_id 不匹配".to_string());
        }
        if current.operation_type != operation_type {
            return Err("custom_world_agent_operation.operation_type 不匹配".to_string());
        }
        let next = rebuild_custom_world_agent_operation_row(
            &current,
            CustomWorldAgentOperationPatch {
                status: Some(RpgAgentOperationStatus::Completed),
                phase_label: Some(phase_label.to_string()),
                phase_detail: Some(phase_detail.to_string()),
                progress: Some(100),
                error_message: Some(None),
                updated_at_micros: Some(timestamp_micros),
            },
        )?;
        replace_custom_world_agent_operation(ctx, &current, next.clone());
        return Ok(next);
    }

    Ok(build_and_insert_custom_world_operation(
        ctx,
        operation_id,
        session_id,
        operation_type,
        phase_label,
        phase_detail,
        timestamp_micros,
    ))
}

fn build_and_insert_custom_world_operation(
    ctx: &ReducerContext,
    operation_id: &str,
    session_id: &str,
    operation_type: RpgAgentOperationType,
    phase_label: &str,
    phase_detail: &str,
    timestamp_micros: i64,
) -> CustomWorldAgentOperation {
    let row = CustomWorldAgentOperation {
        operation_id: operation_id.to_string(),
        session_id: session_id.to_string(),
        operation_type,
        status: RpgAgentOperationStatus::Completed,
        phase_label: phase_label.to_string(),
        phase_detail: phase_detail.to_string(),
        progress: 100,
        error_message: None,
        created_at: Timestamp::from_micros_since_unix_epoch(timestamp_micros),
        updated_at: Timestamp::from_micros_since_unix_epoch(timestamp_micros),
    };
    ctx.db.custom_world_agent_operation().insert(row)
}

fn append_custom_world_action_result_message(
    ctx: &ReducerContext,
    session_id: &str,
    operation_id: &str,
    text: &str,
    timestamp_micros: i64,
) {
    let row = CustomWorldAgentMessage {
        message_id: format!("message-action-{}-{}", operation_id, timestamp_micros),
        session_id: session_id.to_string(),
        role: RpgAgentMessageRole::Assistant,
        kind: RpgAgentMessageKind::ActionResult,
        text: text.to_string(),
        related_operation_id: Some(operation_id.to_string()),
        created_at: Timestamp::from_micros_since_unix_epoch(timestamp_micros),
    };
    ctx.db.custom_world_agent_message().insert(row);
}

fn upsert_world_foundation_card(
    ctx: &ReducerContext,
    session_id: &str,
    draft_profile: &JsonMap<String, JsonValue>,
    updated_at_micros: i64,
) -> Result<(), String> {
    let card_id = build_world_foundation_card_id(session_id);
    let existing_card = ctx
        .db
        .custom_world_draft_card()
        .card_id()
        .find(&card_id)
        .filter(|row| row.session_id == session_id);
    let title = read_optional_text_field(draft_profile, &["name", "title"])
        .unwrap_or_else(|| "世界底稿".to_string());
    let subtitle = read_optional_text_field(draft_profile, &["subtitle"]).unwrap_or_default();
    let summary = read_optional_text_field(draft_profile, &["summary"])
        .unwrap_or_else(|| "第一版世界底稿已生成。".to_string());
    let detail_payload_json = serialize_json_value(&json!({
        "id": card_id,
        "kind": "world",
        "title": title,
        "sections": [
            { "id": "title", "label": "标题", "value": read_optional_text_field(draft_profile, &["name", "title"]).unwrap_or_else(|| "世界底稿".to_string()) },
            { "id": "subtitle", "label": "副标题", "value": subtitle },
            { "id": "summary", "label": "摘要", "value": summary },
        ],
        "linkedIds": [],
        "locked": false,
        "editable": false,
        "editableSectionIds": [],
        "warningMessages": [],
    }))?;

    if let Some(existing) = existing_card {
        replace_custom_world_draft_card(
            ctx,
            &existing,
            CustomWorldDraftCard {
                card_id: existing.card_id.clone(),
                session_id: existing.session_id.clone(),
                kind: RpgAgentDraftCardKind::World,
                status: RpgAgentDraftCardStatus::Confirmed,
                title: read_optional_text_field(draft_profile, &["name", "title"])
                    .unwrap_or_else(|| "世界底稿".to_string()),
                subtitle: read_optional_text_field(draft_profile, &["subtitle"])
                    .unwrap_or_default(),
                summary: read_optional_text_field(draft_profile, &["summary"])
                    .unwrap_or_else(|| "第一版世界底稿已生成。".to_string()),
                linked_ids_json: "[]".to_string(),
                warning_count: 0,
                asset_status: None,
                asset_status_label: None,
                detail_payload_json: Some(detail_payload_json),
                created_at: existing.created_at,
                updated_at: Timestamp::from_micros_since_unix_epoch(updated_at_micros),
            },
        );
    } else {
        ctx.db
            .custom_world_draft_card()
            .insert(CustomWorldDraftCard {
                card_id,
                session_id: session_id.to_string(),
                kind: RpgAgentDraftCardKind::World,
                status: RpgAgentDraftCardStatus::Confirmed,
                title: read_optional_text_field(draft_profile, &["name", "title"])
                    .unwrap_or_else(|| "世界底稿".to_string()),
                subtitle: read_optional_text_field(draft_profile, &["subtitle"])
                    .unwrap_or_default(),
                summary: read_optional_text_field(draft_profile, &["summary"])
                    .unwrap_or_else(|| "第一版世界底稿已生成。".to_string()),
                linked_ids_json: "[]".to_string(),
                warning_count: 0,
                asset_status: None,
                asset_status_label: None,
                detail_payload_json: Some(detail_payload_json),
                created_at: Timestamp::from_micros_since_unix_epoch(updated_at_micros),
                updated_at: Timestamp::from_micros_since_unix_epoch(updated_at_micros),
            });
    }

    Ok(())
}

fn build_world_foundation_card_id(session_id: &str) -> String {
    // `custom_world_draft_card.card_id` 是全局主键，世界底稿卡必须带上会话维度，避免多会话写入时触发唯一键冲突。
    format!("custom-world:{session_id}:world-foundation")
}

fn sync_session_draft_profile_from_card_update(
    session: &CustomWorldAgentSession,
    card: &CustomWorldDraftCard,
    updated_title: &str,
    updated_subtitle: &str,
    updated_summary: &str,
    updated_at_micros: i64,
) -> Result<CustomWorldAgentSession, String> {
    let mut draft_profile = parse_optional_session_object(session.draft_profile_json.as_deref())
        .unwrap_or_else(|| build_minimal_draft_profile_from_seed(&session.seed_text));
    if card.kind == RpgAgentDraftCardKind::World {
        draft_profile.insert(
            "name".to_string(),
            JsonValue::String(updated_title.to_string()),
        );
        draft_profile.insert(
            "subtitle".to_string(),
            JsonValue::String(updated_subtitle.to_string()),
        );
        draft_profile.insert(
            "summary".to_string(),
            JsonValue::String(updated_summary.to_string()),
        );
    }

    let gate = summarize_publish_gate_from_json(
        &session.session_id,
        session.stage,
        Some(&draft_profile),
        &parse_json_array_or_empty(&session.quality_findings_json),
    );
    rebuild_custom_world_agent_session_row(
        session,
        CustomWorldAgentSessionPatch {
            draft_profile_json: Some(Some(serialize_json_value(&JsonValue::Object(
                draft_profile.clone(),
            ))?)),
            publish_gate_json: Some(Some(serialize_json_value(&publish_gate_to_json_value(
                &gate,
            ))?)),
            result_preview_json: Some(build_result_preview_json(
                Some(&draft_profile),
                &gate,
                &parse_json_array_or_empty(&session.quality_findings_json),
                updated_at_micros,
            )?),
            last_assistant_reply: Some(Some(format!("卡片《{}》已更新。", updated_title))),
            updated_at_micros: Some(updated_at_micros),
            ..CustomWorldAgentSessionPatch::default()
        },
    )
}

fn ensure_refining_stage(stage: RpgAgentStage, action: &str) -> Result<(), String> {
    if matches!(
        stage,
        RpgAgentStage::ObjectRefining | RpgAgentStage::VisualRefining
    ) {
        Ok(())
    } else {
        Err(format!(
            "{action} is only available during object_refining or visual_refining"
        ))
    }
}

fn ensure_result_profile_sync_stage(stage: RpgAgentStage, action: &str) -> Result<(), String> {
    if matches!(
        stage,
        RpgAgentStage::ObjectRefining
            | RpgAgentStage::VisualRefining
            | RpgAgentStage::LongTailReview
            | RpgAgentStage::ReadyToPublish
    ) {
        Ok(())
    } else {
        Err(format!(
            "{action} is only available during object_refining, visual_refining, long_tail_review or ready_to_publish"
        ))
    }
}

fn ensure_long_tail_stage(stage: RpgAgentStage, action: &str) -> Result<(), String> {
    if matches!(
        stage,
        RpgAgentStage::ObjectRefining
            | RpgAgentStage::VisualRefining
            | RpgAgentStage::LongTailReview
            | RpgAgentStage::ReadyToPublish
    ) {
        Ok(())
    } else {
        Err(format!(
            "{action} is only available during object_refining, visual_refining, long_tail_review or ready_to_publish"
        ))
    }
}

fn ensure_publishable_stage(stage: RpgAgentStage, action: &str) -> Result<(), String> {
    ensure_long_tail_stage(stage, action)
}

fn parse_rpg_agent_stage(value: &str) -> Option<RpgAgentStage> {
    match value.trim() {
        "collecting_intent" => Some(RpgAgentStage::CollectingIntent),
        "clarifying" => Some(RpgAgentStage::Clarifying),
        "foundation_review" => Some(RpgAgentStage::FoundationReview),
        "object_refining" => Some(RpgAgentStage::ObjectRefining),
        "visual_refining" => Some(RpgAgentStage::VisualRefining),
        "long_tail_review" => Some(RpgAgentStage::LongTailReview),
        "ready_to_publish" => Some(RpgAgentStage::ReadyToPublish),
        "published" => Some(RpgAgentStage::Published),
        "error" => Some(RpgAgentStage::Error),
        _ => None,
    }
}

fn resolve_rpg_agent_stage_label(stage: RpgAgentStage) -> &'static str {
    match stage {
        RpgAgentStage::CollectingIntent => "收集世界锚点",
        RpgAgentStage::Clarifying => "补齐关键锚点",
        RpgAgentStage::FoundationReview => "准备整理底稿",
        RpgAgentStage::ObjectRefining => "待完善草稿",
        RpgAgentStage::VisualRefining => "视觉工坊",
        RpgAgentStage::LongTailReview => "扩展长尾",
        RpgAgentStage::ReadyToPublish => "准备发布",
        RpgAgentStage::Published => "已发布",
        RpgAgentStage::Error => "发生错误",
    }
}

fn parse_optional_session_object(value: Option<&str>) -> Option<JsonMap<String, JsonValue>> {
    value
        .map(str::trim)
        .filter(|value| !value.is_empty())
        .and_then(|value| serde_json::from_str::<JsonValue>(value).ok())
        .and_then(|value| value.as_object().cloned())
}

fn parse_json_array_or_empty(raw: &str) -> Vec<JsonValue> {
    serde_json::from_str::<JsonValue>(raw)
        .ok()
        .and_then(|value| value.as_array().cloned())
        .unwrap_or_default()
}

fn serialize_json_value(value: &JsonValue) -> Result<String, String> {
    serde_json::to_string(value).map_err(|error| format!("JSON 序列化失败: {error}"))
}

fn read_required_payload_text(
    payload: &JsonMap<String, JsonValue>,
    key: &str,
    error_message: &str,
) -> Result<String, String> {
    payload
        .get(key)
        .and_then(JsonValue::as_str)
        .map(str::trim)
        .filter(|value| !value.is_empty())
        .map(ToOwned::to_owned)
        .ok_or_else(|| error_message.to_string())
}

fn read_optional_text_field(object: &JsonMap<String, JsonValue>, keys: &[&str]) -> Option<String> {
    for key in keys {
        let mut current = JsonValue::Object(object.clone());
        let mut found = true;
        for segment in key.split('.') {
            if let Some(next) = current.get(segment) {
                current = next.clone();
            } else {
                found = false;
                break;
            }
        }
        if found {
            if let Some(value) = current
                .as_str()
                .map(str::trim)
                .filter(|value| !value.is_empty())
            {
                return Some(value.to_string());
            }
        }
    }
    None
}

fn resolve_session_work_title(
    session: &CustomWorldAgentSession,
    draft_profile: Option<&JsonMap<String, JsonValue>>,
) -> String {
    draft_profile
        .and_then(|profile| read_optional_text_field(profile, &["name", "title"]))
        .or_else(|| {
            let seed = session.seed_text.trim();
            (!seed.is_empty()).then(|| seed.to_string())
        })
        .unwrap_or_else(|| "未命名草稿".to_string())
}

fn resolve_session_work_summary(
    session: &CustomWorldAgentSession,
    draft_profile: Option<&JsonMap<String, JsonValue>>,
) -> String {
    draft_profile
        .and_then(|profile| read_optional_text_field(profile, &["summary"]))
        .or_else(|| {
            let seed = session.seed_text.trim();
            (!seed.is_empty()).then(|| seed.to_string())
        })
        .unwrap_or_else(|| "还在收集你的世界锚点。".to_string())
}

fn resolve_session_work_subtitle(
    draft_profile: Option<&JsonMap<String, JsonValue>>,
    stage_label: Option<&str>,
) -> String {
    draft_profile
        .and_then(|profile| read_optional_text_field(profile, &["subtitle"]))
        .or_else(|| stage_label.map(ToOwned::to_owned))
        .unwrap_or_default()
}

fn resolve_session_work_cover_image_src(
    draft_profile: Option<&JsonMap<String, JsonValue>>,
) -> Option<String> {
    let profile = draft_profile?;
    if let Some(camp) = profile.get("camp").and_then(JsonValue::as_object) {
        if let Some(image_src) = read_optional_text_field(camp, &["imageSrc"]) {
            return Some(image_src);
        }
    }
    if let Some(landmarks) = profile.get("landmarks").and_then(JsonValue::as_array) {
        for landmark in landmarks {
            if let Some(object) = landmark.as_object() {
                if let Some(image_src) = read_optional_text_field(object, &["imageSrc"]) {
                    return Some(image_src);
                }
            }
        }
    }
    None
}

fn resolve_session_work_counts(
    ctx: &ReducerContext,
    session: &CustomWorldAgentSession,
    draft_profile: Option<&JsonMap<String, JsonValue>>,
) -> (u32, u32) {
    if let Some(profile) = draft_profile {
        let role_count = profile
            .get("playableNpcs")
            .and_then(JsonValue::as_array)
            .map(|entries| entries.len() as u32)
            .unwrap_or(0)
            + profile
                .get("storyNpcs")
                .and_then(JsonValue::as_array)
                .map(|entries| entries.len() as u32)
                .unwrap_or(0);
        let landmark_count = profile
            .get("landmarks")
            .and_then(JsonValue::as_array)
            .map(|entries| entries.len() as u32)
            .unwrap_or(0);
        return (role_count, landmark_count);
    }

    let mut role_count = 0u32;
    let mut landmark_count = 0u32;
    for card in ctx
        .db
        .custom_world_draft_card()
        .by_custom_world_draft_card_session_id()
        .filter(&session.session_id)
    {
        match card.kind {
            RpgAgentDraftCardKind::Character => {
                role_count = role_count.saturating_add(1);
            }
            RpgAgentDraftCardKind::Landmark => {
                landmark_count = landmark_count.saturating_add(1);
            }
            _ => {}
        }
    }

    (role_count, landmark_count)
}

fn ensure_minimal_draft_profile(
    mut profile: JsonMap<String, JsonValue>,
    seed_text: &str,
) -> JsonMap<String, JsonValue> {
    if read_optional_text_field(&profile, &["name", "title"]).is_none() {
        profile.insert(
            "name".to_string(),
            JsonValue::String(seed_text.trim().to_string().if_empty("未命名草稿")),
        );
    }
    if read_optional_text_field(&profile, &["summary"]).is_none() {
        profile.insert(
            "summary".to_string(),
            JsonValue::String(
                (!seed_text.trim().is_empty())
                    .then(|| seed_text.trim().to_string())
                    .unwrap_or_else(|| "还在收集你的世界锚点。".to_string()),
            ),
        );
    }
    profile
        .entry("subtitle".to_string())
        .or_insert_with(|| JsonValue::String(String::new()));
    profile
        .entry("worldHook".to_string())
        .or_insert_with(|| JsonValue::String(String::new()));
    profile
        .entry("playerPremise".to_string())
        .or_insert_with(|| JsonValue::String(String::new()));
    profile
        .entry("coreConflicts".to_string())
        .or_insert_with(|| JsonValue::Array(Vec::new()));
    profile
        .entry("playableNpcs".to_string())
        .or_insert_with(|| JsonValue::Array(Vec::new()));
    profile
        .entry("storyNpcs".to_string())
        .or_insert_with(|| JsonValue::Array(Vec::new()));
    profile
        .entry("landmarks".to_string())
        .or_insert_with(|| JsonValue::Array(Vec::new()));
    profile
        .entry("chapters".to_string())
        .or_insert_with(|| JsonValue::Array(Vec::new()));
    profile
        .entry("sceneChapters".to_string())
        .or_insert_with(|| JsonValue::Array(Vec::new()));
    profile
        .entry("sceneChapterBlueprints".to_string())
        .or_insert_with(|| JsonValue::Array(Vec::new()));
    profile
}

fn build_minimal_draft_profile_from_seed(seed_text: &str) -> JsonMap<String, JsonValue> {
    ensure_minimal_draft_profile(JsonMap::new(), seed_text)
}

fn build_session_checkpoint_value(
    checkpoint_id_suffix: &str,
    label: &str,
    session: &CustomWorldAgentSession,
) -> JsonValue {
    json!({
        "checkpointId": format!("checkpoint-{}-{}", session.session_id, checkpoint_id_suffix),
        "createdAt": format_timestamp_micros(session.updated_at.to_micros_since_unix_epoch()),
        "label": label,
        "snapshot": {
            "stage": session.stage.as_str(),
            "progressPercent": session.progress_percent,
            "draftProfile": parse_optional_session_object(session.draft_profile_json.as_deref()).map(JsonValue::Object),
            "qualityFindings": parse_json_array_or_empty(&session.quality_findings_json),
        }
    })
}

fn append_checkpoint_json(current: &str, checkpoint: &JsonValue) -> Result<String, String> {
    let mut checkpoints = parse_json_array_or_empty(current);
    checkpoints.push(checkpoint.clone());
    serialize_json_value(&JsonValue::Array(checkpoints))
}

fn extract_detail_section_value(sections: &[JsonValue], target_id: &str) -> Option<String> {
    sections.iter().find_map(|entry| {
        let object = entry.as_object()?;
        (object.get("id").and_then(JsonValue::as_str) == Some(target_id)).then(|| {
            object
                .get("value")
                .and_then(JsonValue::as_str)
                .unwrap_or_default()
                .to_string()
        })
    })
}

fn json_array_has_non_empty_text(value: Option<&JsonValue>) -> bool {
    value
        .and_then(JsonValue::as_array)
        .map(|entries| {
            entries.iter().any(|entry| {
                entry
                    .as_str()
                    .map(str::trim)
                    .filter(|text| !text.is_empty())
                    .is_some()
            })
        })
        .unwrap_or(false)
}

trait IfEmptyString {
    fn if_empty(self, fallback: &str) -> String;
}

impl IfEmptyString for String {
    fn if_empty(self, fallback: &str) -> String {
        if self.trim().is_empty() {
            fallback.to_string()
        } else {
            self
        }
    }
}

fn mark_custom_world_agent_session_published(
    ctx: &ReducerContext,
    session_id: &str,
    owner_user_id: &str,
    updated_at_micros: i64,
) -> Result<RpgAgentStage, String> {
    let existing = ctx
        .db
        .custom_world_agent_session()
        .session_id()
        .find(&session_id.to_string())
        .filter(|row| row.owner_user_id == owner_user_id)
        .ok_or_else(|| "custom_world_agent_session 不存在，无法推进到 published".to_string())?;

    ctx.db
        .custom_world_agent_session()
        .session_id()
        .delete(&existing.session_id);

    let next_row = CustomWorldAgentSession {
        session_id: existing.session_id.clone(),
        owner_user_id: existing.owner_user_id.clone(),
        seed_text: existing.seed_text.clone(),
        current_turn: existing.current_turn,
        progress_percent: existing.progress_percent,
        stage: RpgAgentStage::Published,
        focus_card_id: existing.focus_card_id.clone(),
        anchor_content_json: existing.anchor_content_json.clone(),
        creator_intent_json: existing.creator_intent_json.clone(),
        creator_intent_readiness_json: existing.creator_intent_readiness_json.clone(),
        anchor_pack_json: existing.anchor_pack_json.clone(),
        lock_state_json: existing.lock_state_json.clone(),
        draft_profile_json: existing.draft_profile_json.clone(),
        last_assistant_reply: existing.last_assistant_reply.clone(),
        publish_gate_json: existing.publish_gate_json.clone(),
        result_preview_json: existing.result_preview_json.clone(),
        pending_clarifications_json: existing.pending_clarifications_json.clone(),
        quality_findings_json: existing.quality_findings_json.clone(),
        suggested_actions_json: existing.suggested_actions_json.clone(),
        recommended_replies_json: existing.recommended_replies_json.clone(),
        asset_coverage_json: existing.asset_coverage_json.clone(),
        checkpoints_json: existing.checkpoints_json.clone(),
        created_at: existing.created_at,
        updated_at: Timestamp::from_micros_since_unix_epoch(updated_at_micros),
    };

    ctx.db.custom_world_agent_session().insert(next_row);

    Ok(RpgAgentStage::Published)
}

fn sync_custom_world_gallery_entry_from_profile(
    ctx: &ReducerContext,
    profile: &CustomWorldProfile,
) -> Result<CustomWorldGalleryEntrySnapshot, String> {
    let published_at = profile
        .published_at
        .ok_or_else(|| "published profile 缺少 published_at，无法同步 gallery".to_string())?;

    ctx.db
        .custom_world_gallery_entry()
        .profile_id()
        .delete(&profile.profile_id);

    let row = CustomWorldGalleryEntry {
        profile_id: profile.profile_id.clone(),
        owner_user_id: profile.owner_user_id.clone(),
        public_work_code: profile.public_work_code.clone().ok_or_else(|| {
            "published profile 缺少 public_work_code，无法同步 gallery".to_string()
        })?,
        author_public_user_code: profile.author_public_user_code.clone().ok_or_else(|| {
            "published profile 缺少 author_public_user_code，无法同步 gallery".to_string()
        })?,
        author_display_name: profile.author_display_name.clone(),
        world_name: profile.world_name.clone(),
        subtitle: profile.subtitle.clone(),
        summary_text: profile.summary_text.clone(),
        cover_image_src: profile.cover_image_src.clone(),
        theme_mode: profile.theme_mode,
        playable_npc_count: profile.playable_npc_count,
        landmark_count: profile.landmark_count,
        play_count: profile.play_count,
        remix_count: profile.remix_count,
        like_count: profile.like_count,
        published_at,
        updated_at: profile.updated_at,
    };

    let inserted = ctx.db.custom_world_gallery_entry().insert(row);

    Ok(build_custom_world_gallery_entry_snapshot(ctx, &inserted))
}

fn sync_missing_custom_world_gallery_entries(ctx: &ReducerContext) -> Result<(), String> {
    let published_profiles = ctx
        .db
        .custom_world_profile()
        .by_custom_world_profile_publication_status()
        .filter(CustomWorldPublicationStatus::Published)
        .filter(|profile| profile.deleted_at.is_none())
        .collect::<Vec<_>>();

    for profile in published_profiles {
        if profile.published_at.is_none() {
            continue;
        }

        let existing_gallery_entry = ctx
            .db
            .custom_world_gallery_entry()
            .profile_id()
            .find(&profile.profile_id)
            .filter(|entry| entry.owner_user_id == profile.owner_user_id);

        if existing_gallery_entry.is_some()
            && profile.public_work_code.is_some()
            && profile.author_public_user_code.is_some()
        {
            continue;
        }

        let profile_with_public_fields = ensure_custom_world_profile_public_fields(ctx, &profile);
        sync_custom_world_gallery_entry_from_profile(ctx, &profile_with_public_fields)?;
    }

    Ok(())
}

fn ensure_custom_world_profile_public_fields(
    ctx: &ReducerContext,
    profile: &CustomWorldProfile,
) -> CustomWorldProfile {
    if profile.public_work_code.is_some() && profile.author_public_user_code.is_some() {
        return build_custom_world_profile_row_copy(profile);
    }

    ctx.db
        .custom_world_profile()
        .profile_id()
        .delete(&profile.profile_id);

    let next_row = CustomWorldProfile {
        profile_id: profile.profile_id.clone(),
        owner_user_id: profile.owner_user_id.clone(),
        public_work_code: profile
            .public_work_code
            .clone()
            .or_else(|| Some(build_public_work_code_from_profile_id(&profile.profile_id))),
        author_public_user_code: profile.author_public_user_code.clone().or_else(|| {
            Some(build_public_user_code_from_owner_user_id(
                &profile.owner_user_id,
            ))
        }),
        source_agent_session_id: profile.source_agent_session_id.clone(),
        publication_status: profile.publication_status,
        world_name: profile.world_name.clone(),
        subtitle: profile.subtitle.clone(),
        summary_text: profile.summary_text.clone(),
        theme_mode: profile.theme_mode,
        cover_image_src: profile.cover_image_src.clone(),
        profile_payload_json: profile.profile_payload_json.clone(),
        playable_npc_count: profile.playable_npc_count,
        landmark_count: profile.landmark_count,
        play_count: profile.play_count,
        remix_count: profile.remix_count,
        like_count: profile.like_count,
        author_display_name: profile.author_display_name.clone(),
        published_at: profile.published_at,
        deleted_at: profile.deleted_at,
        created_at: profile.created_at,
        updated_at: profile.updated_at,
    };

    ctx.db.custom_world_profile().insert(next_row)
}

fn build_custom_world_profile_row_copy(profile: &CustomWorldProfile) -> CustomWorldProfile {
    CustomWorldProfile {
        profile_id: profile.profile_id.clone(),
        owner_user_id: profile.owner_user_id.clone(),
        public_work_code: profile.public_work_code.clone(),
        author_public_user_code: profile.author_public_user_code.clone(),
        source_agent_session_id: profile.source_agent_session_id.clone(),
        publication_status: profile.publication_status,
        world_name: profile.world_name.clone(),
        subtitle: profile.subtitle.clone(),
        summary_text: profile.summary_text.clone(),
        theme_mode: profile.theme_mode,
        cover_image_src: profile.cover_image_src.clone(),
        profile_payload_json: profile.profile_payload_json.clone(),
        playable_npc_count: profile.playable_npc_count,
        landmark_count: profile.landmark_count,
        play_count: profile.play_count,
        remix_count: profile.remix_count,
        like_count: profile.like_count,
        author_display_name: profile.author_display_name.clone(),
        published_at: profile.published_at,
        deleted_at: profile.deleted_at,
        created_at: profile.created_at,
        updated_at: profile.updated_at,
    }
}

fn build_custom_world_profile_snapshot(row: &CustomWorldProfile) -> CustomWorldProfileSnapshot {
    CustomWorldProfileSnapshot {
        profile_id: row.profile_id.clone(),
        owner_user_id: row.owner_user_id.clone(),
        public_work_code: row.public_work_code.clone(),
        author_public_user_code: row.author_public_user_code.clone(),
        source_agent_session_id: row.source_agent_session_id.clone(),
        publication_status: row.publication_status,
        world_name: row.world_name.clone(),
        subtitle: row.subtitle.clone(),
        summary_text: row.summary_text.clone(),
        theme_mode: row.theme_mode,
        cover_image_src: row.cover_image_src.clone(),
        profile_payload_json: row.profile_payload_json.clone(),
        playable_npc_count: row.playable_npc_count,
        landmark_count: row.landmark_count,
        play_count: row.play_count,
        remix_count: row.remix_count,
        like_count: row.like_count,
        author_display_name: row.author_display_name.clone(),
        published_at_micros: row
            .published_at
            .map(|value| value.to_micros_since_unix_epoch()),
        deleted_at_micros: row
            .deleted_at
            .map(|value| value.to_micros_since_unix_epoch()),
        created_at_micros: row.created_at.to_micros_since_unix_epoch(),
        updated_at_micros: row.updated_at.to_micros_since_unix_epoch(),
    }
}

fn build_custom_world_agent_session_snapshot(
    ctx: &ReducerContext,
    row: &CustomWorldAgentSession,
) -> CustomWorldAgentSessionSnapshot {
    let mut messages = ctx
        .db
        .custom_world_agent_message()
        .by_custom_world_agent_message_session_id()
        .filter(&row.session_id)
        .map(|message| build_custom_world_agent_message_snapshot(&message))
        .collect::<Vec<_>>();
    messages.sort_by_key(|message| (message.created_at_micros, message.message_id.clone()));

    let mut draft_cards = ctx
        .db
        .custom_world_draft_card()
        .by_custom_world_draft_card_session_id()
        .filter(&row.session_id)
        .map(|card| build_custom_world_draft_card_snapshot(&card))
        .collect::<Vec<_>>();
    draft_cards.sort_by_key(|card| (card.created_at_micros, card.card_id.clone()));

    let mut operations = ctx
        .db
        .custom_world_agent_operation()
        .by_custom_world_agent_operation_session_id()
        .filter(&row.session_id)
        .map(|operation| build_custom_world_agent_operation_snapshot(&operation))
        .collect::<Vec<_>>();
    operations
        .sort_by_key(|operation| (operation.created_at_micros, operation.operation_id.clone()));

    CustomWorldAgentSessionSnapshot {
        session_id: row.session_id.clone(),
        owner_user_id: row.owner_user_id.clone(),
        seed_text: row.seed_text.clone(),
        current_turn: row.current_turn,
        progress_percent: row.progress_percent,
        stage: row.stage,
        focus_card_id: row.focus_card_id.clone(),
        anchor_content_json: row.anchor_content_json.clone(),
        creator_intent_json: row.creator_intent_json.clone(),
        creator_intent_readiness_json: row.creator_intent_readiness_json.clone(),
        anchor_pack_json: row.anchor_pack_json.clone(),
        lock_state_json: row.lock_state_json.clone(),
        draft_profile_json: row.draft_profile_json.clone(),
        last_assistant_reply: row.last_assistant_reply.clone(),
        publish_gate_json: row.publish_gate_json.clone(),
        result_preview_json: row.result_preview_json.clone(),
        pending_clarifications_json: row.pending_clarifications_json.clone(),
        quality_findings_json: row.quality_findings_json.clone(),
        suggested_actions_json: row.suggested_actions_json.clone(),
        recommended_replies_json: row.recommended_replies_json.clone(),
        asset_coverage_json: row.asset_coverage_json.clone(),
        checkpoints_json: row.checkpoints_json.clone(),
        supported_actions_json: serialize_json_value(&JsonValue::Array(
            build_supported_actions_json(
                row.stage,
                row.progress_percent,
                &build_custom_world_publish_gate_from_session(row),
                &parse_json_array_or_empty(&row.checkpoints_json),
            ),
        ))
        .unwrap_or_else(|_| "[]".to_string()),
        messages,
        draft_cards,
        operations,
        created_at_micros: row.created_at.to_micros_since_unix_epoch(),
        updated_at_micros: row.updated_at.to_micros_since_unix_epoch(),
    }
}

fn build_custom_world_agent_message_snapshot(
    row: &CustomWorldAgentMessage,
) -> CustomWorldAgentMessageSnapshot {
    CustomWorldAgentMessageSnapshot {
        message_id: row.message_id.clone(),
        session_id: row.session_id.clone(),
        role: row.role,
        kind: row.kind,
        text: row.text.clone(),
        related_operation_id: row.related_operation_id.clone(),
        created_at_micros: row.created_at.to_micros_since_unix_epoch(),
    }
}

fn build_custom_world_agent_operation_snapshot(
    row: &CustomWorldAgentOperation,
) -> CustomWorldAgentOperationSnapshot {
    CustomWorldAgentOperationSnapshot {
        operation_id: row.operation_id.clone(),
        session_id: row.session_id.clone(),
        operation_type: row.operation_type,
        status: row.status,
        phase_label: row.phase_label.clone(),
        phase_detail: row.phase_detail.clone(),
        progress: row.progress,
        error_message: row.error_message.clone(),
        created_at_micros: row.created_at.to_micros_since_unix_epoch(),
        updated_at_micros: row.updated_at.to_micros_since_unix_epoch(),
    }
}

fn build_custom_world_draft_card_snapshot(
    row: &CustomWorldDraftCard,
) -> CustomWorldDraftCardSnapshot {
    CustomWorldDraftCardSnapshot {
        card_id: row.card_id.clone(),
        session_id: row.session_id.clone(),
        kind: row.kind,
        status: row.status,
        title: row.title.clone(),
        subtitle: row.subtitle.clone(),
        summary: row.summary.clone(),
        linked_ids_json: row.linked_ids_json.clone(),
        warning_count: row.warning_count,
        asset_status: row.asset_status,
        asset_status_label: row.asset_status_label.clone(),
        detail_payload_json: row.detail_payload_json.clone(),
        created_at_micros: row.created_at.to_micros_since_unix_epoch(),
        updated_at_micros: row.updated_at.to_micros_since_unix_epoch(),
    }
}

fn build_custom_world_gallery_entry_snapshot(
    ctx: &ReducerContext,
    row: &CustomWorldGalleryEntry,
) -> CustomWorldGalleryEntrySnapshot {
    let recent_play_counts = count_recent_public_work_plays_for_profiles(
        ctx,
        "custom-world",
        &[row.profile_id.clone()],
        ctx.timestamp.to_micros_since_unix_epoch(),
    );
    build_custom_world_gallery_entry_snapshot_with_recent_counts(row, &recent_play_counts)
}

fn build_custom_world_gallery_entry_snapshot_with_recent_counts(
    row: &CustomWorldGalleryEntry,
    recent_play_counts: &HashMap<String, u32>,
) -> CustomWorldGalleryEntrySnapshot {
    CustomWorldGalleryEntrySnapshot {
        profile_id: row.profile_id.clone(),
        owner_user_id: row.owner_user_id.clone(),
        public_work_code: row.public_work_code.clone(),
        author_public_user_code: row.author_public_user_code.clone(),
        author_display_name: row.author_display_name.clone(),
        world_name: row.world_name.clone(),
        subtitle: row.subtitle.clone(),
        summary_text: row.summary_text.clone(),
        cover_image_src: row.cover_image_src.clone(),
        theme_mode: row.theme_mode,
        playable_npc_count: row.playable_npc_count,
        landmark_count: row.landmark_count,
        play_count: row.play_count,
        remix_count: row.remix_count,
        like_count: row.like_count,
        recent_play_count_7d: recent_play_counts
            .get(&row.profile_id)
            .copied()
            .unwrap_or(0),
        published_at_micros: row.published_at.to_micros_since_unix_epoch(),
        updated_at_micros: row.updated_at.to_micros_since_unix_epoch(),
    }
}

// 作品公开号保持稳定公开语义，本期先由 profile_id 派生 deterministic fallback，
// 后续若引入独立 sequence 表，可无痛替换生成来源而不影响读写接口。
fn build_public_work_code_from_profile_id(profile_id: &str) -> String {
    let digits = profile_id
        .chars()
        .filter(|character| character.is_ascii_digit())
        .collect::<String>();
    let normalized_digits = if digits.is_empty() {
        let checksum = profile_id.bytes().fold(0u32, |accumulator, value| {
            accumulator.wrapping_mul(131) + u32::from(value)
        });
        format!("{:08}", checksum % 100_000_000)
    } else {
        format!("{:0>8}", &digits[digits.len().saturating_sub(8)..])
    };

    format!("CW-{normalized_digits}")
}

fn build_public_user_code_from_owner_user_id(owner_user_id: &str) -> String {
    owner_user_id
        .trim_start_matches("user_")
        .parse::<u64>()
        .ok()
        .map(|sequence| format!("SY-{sequence:08}"))
        .unwrap_or_else(|| "SY-00000000".to_string())
}

fn normalize_public_work_code(input: &str) -> Option<String> {
    let normalized = input
        .trim()
        .chars()
        .filter(|character| character.is_ascii_alphanumeric())
        .collect::<String>()
        .to_ascii_uppercase();
    let digits = normalized.strip_prefix("CW").unwrap_or(&normalized);
    if digits.is_empty()
        || digits.len() > 8
        || !digits.chars().all(|character| character.is_ascii_digit())
    {
        return None;
    }

    Some(format!("CW-{digits:0>8}"))
}

#[cfg(test)]
mod tests {
    use super::*;

    fn build_test_custom_world_agent_session(
        seed_text: &str,
        stage: RpgAgentStage,
        draft_profile_json: Option<&str>,
    ) -> CustomWorldAgentSession {
        CustomWorldAgentSession {
            session_id: "session-1".to_string(),
            owner_user_id: "user-1".to_string(),
            seed_text: seed_text.to_string(),
            current_turn: 0,
            progress_percent: 0,
            stage,
            focus_card_id: None,
            anchor_content_json: "{}".to_string(),
            creator_intent_json: None,
            creator_intent_readiness_json: "{}".to_string(),
            anchor_pack_json: None,
            lock_state_json: None,
            draft_profile_json: draft_profile_json.map(str::to_string),
            last_assistant_reply: None,
            publish_gate_json: None,
            result_preview_json: None,
            pending_clarifications_json: "[]".to_string(),
            quality_findings_json: "[]".to_string(),
            suggested_actions_json: "[]".to_string(),
            recommended_replies_json: "[]".to_string(),
            asset_coverage_json: "{}".to_string(),
            checkpoints_json: "[]".to_string(),
            created_at: Timestamp::from_micros_since_unix_epoch(1),
            updated_at: Timestamp::from_micros_since_unix_epoch(1),
        }
    }

    #[test]
    fn resolve_stable_agent_draft_profile_id_prefers_legacy_result_profile_id() {
        let session = build_test_custom_world_agent_session(
            "seed",
            RpgAgentStage::ObjectRefining,
            Some(r#"{"id":"drifted-profile","legacyResultProfile":{"id":"stable-profile"}}"#),
        );

        assert_eq!(
            resolve_stable_agent_draft_profile_id(&session),
            Some("stable-profile".to_string())
        );
    }

    #[test]
    fn publish_world_draft_profile_comes_from_session_not_payload() {
        let session = build_test_custom_world_agent_session(
            "seed",
            RpgAgentStage::ReadyToPublish,
            Some(r#"{"id":"saved-profile","name":"已保存草稿"}"#),
        );
        let draft_profile =
            read_publish_world_draft_profile_from_session(&session).expect("session draft exists");

        assert_eq!(
            draft_profile.get("id").and_then(JsonValue::as_str),
            Some("saved-profile")
        );
        assert_eq!(
            draft_profile.get("name").and_then(JsonValue::as_str),
            Some("已保存草稿")
        );
    }

    #[test]
    fn custom_world_agent_session_direct_work_content_ignores_empty_created_session() {
        let empty_session =
            build_test_custom_world_agent_session("", RpgAgentStage::CollectingIntent, Some("{}"));
        let seeded_session = build_test_custom_world_agent_session(
            "想做一个海雾群岛",
            RpgAgentStage::CollectingIntent,
            Some("{}"),
        );
        let drafted_session =
            build_test_custom_world_agent_session("", RpgAgentStage::ObjectRefining, Some("{}"));
        let profile_session = build_test_custom_world_agent_session(
            "",
            RpgAgentStage::CollectingIntent,
            Some(r#"{"worldHook":"海雾会吞掉记错航线的人。"}"#),
        );

        assert!(!custom_world_agent_session_has_direct_work_content(
            &empty_session,
        ));
        assert!(custom_world_agent_session_has_direct_work_content(
            &seeded_session,
        ));
        assert!(custom_world_agent_session_has_direct_work_content(
            &drafted_session,
        ));
        assert!(custom_world_agent_session_has_direct_work_content(
            &profile_session,
        ));
    }

    #[test]
    fn same_agent_draft_profile_candidate_requires_same_owner_active_draft_and_session() {
        let matching = CustomWorldProfile {
            profile_id: "profile-1".to_string(),
            owner_user_id: "user-1".to_string(),
            public_work_code: None,
            author_public_user_code: None,
            source_agent_session_id: Some("session-1".to_string()),
            publication_status: CustomWorldPublicationStatus::Draft,
            world_name: "潮雾列岛".to_string(),
            subtitle: String::new(),
            summary_text: String::new(),
            theme_mode: CustomWorldThemeMode::Mythic,
            cover_image_src: None,
            profile_payload_json: "{}".to_string(),
            playable_npc_count: 0,
            landmark_count: 0,
            play_count: 0,
            remix_count: 0,
            like_count: 0,
            author_display_name: "玩家".to_string(),
            published_at: None,
            deleted_at: None,
            created_at: Timestamp::from_micros_since_unix_epoch(1),
            updated_at: Timestamp::from_micros_since_unix_epoch(1),
        };
        let deleted = CustomWorldProfile {
            profile_id: "profile-1".to_string(),
            owner_user_id: "user-1".to_string(),
            public_work_code: None,
            author_public_user_code: None,
            source_agent_session_id: Some("session-1".to_string()),
            publication_status: CustomWorldPublicationStatus::Draft,
            world_name: "潮雾列岛".to_string(),
            subtitle: String::new(),
            summary_text: String::new(),
            theme_mode: CustomWorldThemeMode::Mythic,
            cover_image_src: None,
            profile_payload_json: "{}".to_string(),
            playable_npc_count: 0,
            landmark_count: 0,
            play_count: 0,
            remix_count: 0,
            like_count: 0,
            author_display_name: "玩家".to_string(),
            published_at: None,
            deleted_at: Some(Timestamp::from_micros_since_unix_epoch(2)),
            created_at: Timestamp::from_micros_since_unix_epoch(1),
            updated_at: Timestamp::from_micros_since_unix_epoch(1),
        };
        let published = CustomWorldProfile {
            profile_id: "profile-1".to_string(),
            owner_user_id: "user-1".to_string(),
            public_work_code: Some("CW-00000001".to_string()),
            author_public_user_code: Some("SY-00000001".to_string()),
            source_agent_session_id: Some("session-1".to_string()),
            publication_status: CustomWorldPublicationStatus::Published,
            world_name: "潮雾列岛".to_string(),
            subtitle: String::new(),
            summary_text: String::new(),
            theme_mode: CustomWorldThemeMode::Mythic,
            cover_image_src: None,
            profile_payload_json: "{}".to_string(),
            playable_npc_count: 0,
            landmark_count: 0,
            play_count: 0,
            remix_count: 0,
            like_count: 0,
            author_display_name: "玩家".to_string(),
            published_at: None,
            deleted_at: None,
            created_at: Timestamp::from_micros_since_unix_epoch(1),
            updated_at: Timestamp::from_micros_since_unix_epoch(1),
        };

        assert!(is_same_agent_draft_profile_candidate(
            &matching,
            "user-1",
            "session-1",
        ));
        assert!(!is_same_agent_draft_profile_candidate(
            &matching,
            "user-2",
            "session-1",
        ));
        assert!(!is_same_agent_draft_profile_candidate(
            &matching,
            "user-1",
            "session-2",
        ));
        assert!(!is_same_agent_draft_profile_candidate(
            &deleted,
            "user-1",
            "session-1",
        ));
        assert!(!is_same_agent_draft_profile_candidate(
            &published,
            "user-1",
            "session-1",
        ));
    }

    #[test]
    fn custom_world_works_hides_compiled_draft_profile_when_agent_session_is_active() {
        fn build_test_custom_world_profile(
            profile_id: &str,
            source_agent_session_id: Option<&str>,
            publication_status: CustomWorldPublicationStatus,
        ) -> CustomWorldProfile {
            CustomWorldProfile {
                profile_id: profile_id.to_string(),
                owner_user_id: "user-1".to_string(),
                public_work_code: if publication_status == CustomWorldPublicationStatus::Published {
                    Some("CW-00000001".to_string())
                } else {
                    None
                },
                author_public_user_code: None,
                source_agent_session_id: source_agent_session_id.map(str::to_string),
                publication_status,
                world_name: "潮雾列岛".to_string(),
                subtitle: String::new(),
                summary_text: String::new(),
                theme_mode: CustomWorldThemeMode::Mythic,
                cover_image_src: None,
                profile_payload_json: "{}".to_string(),
                playable_npc_count: 0,
                landmark_count: 0,
                play_count: 0,
                remix_count: 0,
                like_count: 0,
                author_display_name: "玩家".to_string(),
                published_at: if publication_status == CustomWorldPublicationStatus::Published {
                    Some(Timestamp::from_micros_since_unix_epoch(2))
                } else {
                    None
                },
                deleted_at: None,
                created_at: Timestamp::from_micros_since_unix_epoch(1),
                updated_at: Timestamp::from_micros_since_unix_epoch(1),
            }
        }

        let draft_profile = build_test_custom_world_profile(
            "profile-1",
            Some("session-1"),
            CustomWorldPublicationStatus::Draft,
        );
        let orphan_draft_profile = build_test_custom_world_profile(
            "profile-2",
            Some("session-2"),
            CustomWorldPublicationStatus::Draft,
        );
        let published_profile = build_test_custom_world_profile(
            "profile-3",
            Some("session-1"),
            CustomWorldPublicationStatus::Published,
        );
        let mut active_agent_session_ids = HashSet::new();
        active_agent_session_ids.insert("session-1".to_string());

        assert!(!should_include_custom_world_profile_work(
            &draft_profile,
            &active_agent_session_ids,
        ));
        assert!(should_include_custom_world_profile_work(
            &orphan_draft_profile,
            &active_agent_session_ids,
        ));
        assert!(should_include_custom_world_profile_work(
            &published_profile,
            &active_agent_session_ids,
        ));
    }

    #[test]
    fn custom_world_works_keeps_compiled_draft_profile_without_active_agent_session() {
        let draft_profile = CustomWorldProfile {
            profile_id: "profile-1".to_string(),
            owner_user_id: "user-1".to_string(),
            public_work_code: None,
            author_public_user_code: None,
            source_agent_session_id: Some("session-1".to_string()),
            publication_status: CustomWorldPublicationStatus::Draft,
            world_name: "潮雾列岛".to_string(),
            subtitle: String::new(),
            summary_text: String::new(),
            theme_mode: CustomWorldThemeMode::Mythic,
            cover_image_src: None,
            profile_payload_json: "{}".to_string(),
            playable_npc_count: 0,
            landmark_count: 0,
            play_count: 0,
            remix_count: 0,
            like_count: 0,
            author_display_name: "玩家".to_string(),
            published_at: None,
            deleted_at: None,
            created_at: Timestamp::from_micros_since_unix_epoch(1),
            updated_at: Timestamp::from_micros_since_unix_epoch(1),
        };
        let mut active_agent_session_ids = HashSet::new();

        assert!(should_include_custom_world_profile_work(
            &draft_profile,
            &active_agent_session_ids,
        ));

        active_agent_session_ids.insert("session-2".to_string());
        assert!(should_include_custom_world_profile_work(
            &draft_profile,
            &active_agent_session_ids,
        ));
    }

    #[test]
    fn summarize_publish_gate_accepts_current_agent_result_schema() {
        let draft_profile = serde_json::from_str::<JsonValue>(
            r#"{
                "id":"agent-draft-session-1",
                "settingText":"海雾会吞掉记错航线的人。",
                "creatorIntent":{"playerPremise":"玩家是带着旧航海日志返乡的守灯人。"},
                "anchorContent":{
                    "worldPromise":{"hook":"在失真的海图上追查一场被篡改的沉船事故。"},
                    "playerEntryPoint":{
                        "openingIdentity":"被停职返乡的守灯人",
                        "openingProblem":"灯塔记录被人改写",
                        "entryMotivation":"查清父亲沉船真相"
                    }
                },
                "coreConflicts":["群岛议会试图掩盖沉船真相。"],
                "sceneChapterBlueprints":[
                    {
                        "id":"scene-chapter-1",
                        "sceneId":"landmark-1",
                        "title":"失灯港",
                        "acts":[
                            {
                                "id":"act-1",
                                "title":"第一幕"
                            }
                        ]
                    }
                ]
            }"#,
        )
        .expect("draft profile should be valid json")
        .as_object()
        .cloned()
        .expect("draft profile should be object");

        let gate = summarize_publish_gate_from_json(
            "session-1",
            RpgAgentStage::ReadyToPublish,
            Some(&draft_profile),
            &[],
        );

        assert!(gate.publish_ready);
        assert_eq!(gate.blocker_count, 0);
        assert!(gate.blockers.is_empty());
    }

    #[test]
    fn ensure_minimal_draft_profile_includes_scene_chapter_blueprints_slot() {
        let profile = ensure_minimal_draft_profile(JsonMap::new(), "旧航路群岛");

        assert_eq!(
            profile.get("sceneChapterBlueprints"),
            Some(&JsonValue::Array(Vec::new()))
        );
    }

    #[test]
    fn draft_foundation_payload_must_contain_external_draft_profile() {
        let payload = JsonMap::new();

        let result = payload
            .get("draftProfile")
            .and_then(JsonValue::as_object)
            .cloned()
            .ok_or_else(|| {
                "draft_foundation requires externally generated payload.draftProfile".to_string()
            });

        assert_eq!(
            result.expect_err("missing draftProfile should be rejected"),
            "draft_foundation requires externally generated payload.draftProfile"
        );
    }
}