use crate::*;

#[spacetimedb::table(accessor = creation_entry_config)]
pub struct CreationEntryConfig {
    #[primary_key]
    pub(crate) config_id: String,
    pub(crate) start_title: String,
    pub(crate) start_description: String,
    pub(crate) start_idle_badge: String,
    pub(crate) start_busy_badge: String,
    pub(crate) modal_title: String,
    pub(crate) modal_description: String,
    pub(crate) updated_at: Timestamp,
    #[default(None::<String>)]
    pub(crate) event_title: Option<String>,
    #[default(None::<String>)]
    pub(crate) event_description: Option<String>,
    #[default(None::<String>)]
    pub(crate) event_cover_image_src: Option<String>,
    #[default(DEFAULT_CREATION_ENTRY_EVENT_PRIZE_POOL_MUD_POINTS)]
    pub(crate) event_prize_pool_mud_points: u64,
    #[default(None::<String>)]
    pub(crate) event_starts_at_text: Option<String>,
    #[default(None::<String>)]
    pub(crate) event_ends_at_text: Option<String>,
    /// 底部加号创作入口页的多 banner JSON 配置，旧单条字段仅用于兼容。
    #[default(None::<String>)]
    pub(crate) event_banners_json: Option<String>,
}

#[spacetimedb::table(
    accessor = creation_entry_type_config,
    index(accessor = by_creation_entry_type_sort_order, btree(columns = [sort_order]))
)]
pub struct CreationEntryTypeConfig {
    #[primary_key]
    pub(crate) id: String,
    pub(crate) title: String,
    pub(crate) subtitle: String,
    pub(crate) badge: String,
    pub(crate) image_src: String,
    pub(crate) visible: bool,
    pub(crate) open: bool,
    pub(crate) sort_order: i32,
    pub(crate) updated_at: Timestamp,
    #[default(None::<String>)]
    pub(crate) category_id: Option<String>,
    #[default(None::<String>)]
    pub(crate) category_label: Option<String>,
    #[default(0)]
    pub(crate) category_sort_order: i32,
    #[default(None::<String>)]
    pub(crate) unified_creation_spec_json: Option<String>,
}

#[spacetimedb::procedure]
pub fn get_creation_entry_config(ctx: &mut ProcedureContext) -> CreationEntryConfigProcedureResult {
    match ctx.try_with_tx(|tx| get_or_seed_creation_entry_config_snapshot(tx)) {
        Ok(record) => CreationEntryConfigProcedureResult {
            ok: true,
            record: Some(record),
            error_message: None,
        },
        Err(message) => CreationEntryConfigProcedureResult {
            ok: false,
            record: None,
            error_message: Some(message),
        },
    }
}

#[spacetimedb::procedure]
pub fn upsert_creation_entry_type_config(
    ctx: &mut ProcedureContext,
    input: CreationEntryTypeAdminUpsertInput,
) -> CreationEntryConfigProcedureResult {
    match ctx.try_with_tx(|tx| upsert_creation_entry_type_config_in_tx(tx, input.clone())) {
        Ok(record) => CreationEntryConfigProcedureResult {
            ok: true,
            record: Some(record),
            error_message: None,
        },
        Err(message) => CreationEntryConfigProcedureResult {
            ok: false,
            record: None,
            error_message: Some(message),
        },
    }
}

#[spacetimedb::procedure]
/// 后台保存底部加号创作入口页多 banner 配置的过程入口。
pub fn upsert_creation_entry_event_banners_config(
    ctx: &mut ProcedureContext,
    input: CreationEntryEventBannersAdminUpsertInput,
) -> CreationEntryConfigProcedureResult {
    match ctx.try_with_tx(|tx| upsert_creation_entry_event_banners_config_in_tx(tx, input.clone()))
    {
        Ok(record) => CreationEntryConfigProcedureResult {
            ok: true,
            record: Some(record),
            error_message: None,
        },
        Err(message) => CreationEntryConfigProcedureResult {
            ok: false,
            record: None,
            error_message: Some(message),
        },
    }
}

fn upsert_creation_entry_type_config_in_tx(
    ctx: &ReducerContext,
    input: CreationEntryTypeAdminUpsertInput,
) -> Result<CreationEntryConfigSnapshot, String> {
    seed_creation_entry_config_if_missing(ctx);
    let now = ctx.timestamp;
    let id = input.id.trim().to_string();
    if id.is_empty() {
        return Err("入口 ID 不能为空".to_string());
    }
    if input.title.trim().is_empty() {
        return Err("入口标题不能为空".to_string());
    }
    let unified_creation_spec_json = normalize_unified_creation_spec_json(&id, &input)?;
    let row = CreationEntryTypeConfig {
        id: id.clone(),
        title: input.title.trim().to_string(),
        subtitle: input.subtitle.trim().to_string(),
        badge: input.badge.trim().to_string(),
        image_src: input.image_src.trim().to_string(),
        visible: input.visible,
        open: input.open,
        sort_order: input.sort_order,
        updated_at: now,
        category_id: Some(normalize_category_id(&input.category_id)),
        category_label: Some(normalize_category_label(&input.category_label)),
        category_sort_order: input.category_sort_order,
        unified_creation_spec_json,
    };
    if ctx.db.creation_entry_type_config().id().find(&id).is_some() {
        ctx.db.creation_entry_type_config().id().update(row);
    } else {
        ctx.db.creation_entry_type_config().insert(row);
    }
    get_or_seed_creation_entry_config_snapshot(ctx)
}

/// 在事务内归一化 banner JSON 并更新全局入口配置表头。
fn upsert_creation_entry_event_banners_config_in_tx(
    ctx: &ReducerContext,
    input: CreationEntryEventBannersAdminUpsertInput,
) -> Result<CreationEntryConfigSnapshot, String> {
    seed_creation_entry_config_if_missing(ctx);
    let now = ctx.timestamp;
    let config_id = CREATION_ENTRY_CONFIG_GLOBAL_ID.to_string();
    let Some(header) = ctx.db.creation_entry_config().config_id().find(&config_id) else {
        return Err("创作入口配置初始化失败".to_string());
    };
    let event_banners_json =
        module_runtime::normalize_creation_entry_event_banners_json(&input.event_banners_json)?;

    ctx.db
        .creation_entry_config()
        .config_id()
        .update(CreationEntryConfig {
            updated_at: now,
            event_banners_json: Some(event_banners_json),
            ..header
        });
    get_or_seed_creation_entry_config_snapshot(ctx)
}

fn get_or_seed_creation_entry_config_snapshot(
    ctx: &ReducerContext,
) -> Result<CreationEntryConfigSnapshot, String> {
    seed_creation_entry_config_if_missing(ctx);
    let header = ctx
        .db
        .creation_entry_config()
        .config_id()
        .find(CREATION_ENTRY_CONFIG_GLOBAL_ID.to_string())
        .ok_or_else(|| "创作入口配置初始化失败".to_string())?;
    let mut creation_types = ctx
        .db
        .creation_entry_type_config()
        .iter()
        .map(|row| CreationEntryTypeSnapshot {
            id: row.id,
            title: row.title,
            subtitle: row.subtitle,
            badge: row.badge,
            image_src: row.image_src,
            visible: row.visible,
            open: row.open,
            sort_order: row.sort_order,
            category_id: normalize_optional_category_id(row.category_id.as_deref()),
            category_label: normalize_optional_category_label(row.category_label.as_deref()),
            category_sort_order: row.category_sort_order,
            updated_at_micros: row.updated_at.to_micros_since_unix_epoch(),
            unified_creation_spec_json: row.unified_creation_spec_json,
        })
        .collect::<Vec<_>>();
    creation_types.sort_by(|left, right| {
        left.sort_order
            .cmp(&right.sort_order)
            .then_with(|| left.id.cmp(&right.id))
    });

    Ok(CreationEntryConfigSnapshot {
        config_id: header.config_id,
        start_card: CreationEntryStartCardSnapshot {
            title: header.start_title,
            description: header.start_description,
            idle_badge: header.start_idle_badge,
            busy_badge: header.start_busy_badge,
        },
        type_modal: CreationEntryTypeModalSnapshot {
            title: header.modal_title,
            description: header.modal_description,
        },
        event_banner: CreationEntryEventBannerSnapshot {
            title: normalize_optional_text(
                header.event_title.as_deref(),
                DEFAULT_CREATION_ENTRY_EVENT_TITLE,
            ),
            description: normalize_optional_text(
                header.event_description.as_deref(),
                DEFAULT_CREATION_ENTRY_EVENT_DESCRIPTION,
            ),
            cover_image_src: normalize_optional_text(
                header.event_cover_image_src.as_deref(),
                DEFAULT_CREATION_ENTRY_EVENT_COVER_IMAGE_SRC,
            ),
            prize_pool_mud_points: header.event_prize_pool_mud_points,
            starts_at_text: normalize_optional_text(
                header.event_starts_at_text.as_deref(),
                DEFAULT_CREATION_ENTRY_EVENT_STARTS_AT_TEXT,
            ),
            ends_at_text: normalize_optional_text(
                header.event_ends_at_text.as_deref(),
                DEFAULT_CREATION_ENTRY_EVENT_ENDS_AT_TEXT,
            ),
            render_mode: "structured".to_string(),
            html_code: None,
        },
        event_banners_json: header.event_banners_json,
        creation_types,
        updated_at_micros: header.updated_at.to_micros_since_unix_epoch(),
    })
}

/// 初始化创作入口全局配置，并为旧库补齐默认多 banner JSON。
fn seed_creation_entry_config_if_missing(ctx: &ReducerContext) {
    let now = ctx.timestamp;
    if ctx
        .db
        .creation_entry_config()
        .config_id()
        .find(CREATION_ENTRY_CONFIG_GLOBAL_ID.to_string())
        .is_none()
    {
        ctx.db.creation_entry_config().insert(CreationEntryConfig {
            config_id: CREATION_ENTRY_CONFIG_GLOBAL_ID.to_string(),
            start_title: DEFAULT_CREATION_ENTRY_START_TITLE.to_string(),
            start_description: DEFAULT_CREATION_ENTRY_START_DESCRIPTION.to_string(),
            start_idle_badge: DEFAULT_CREATION_ENTRY_START_IDLE_BADGE.to_string(),
            start_busy_badge: DEFAULT_CREATION_ENTRY_START_BUSY_BADGE.to_string(),
            modal_title: DEFAULT_CREATION_ENTRY_MODAL_TITLE.to_string(),
            modal_description: DEFAULT_CREATION_ENTRY_MODAL_DESCRIPTION.to_string(),
            updated_at: now,
            event_title: Some(DEFAULT_CREATION_ENTRY_EVENT_TITLE.to_string()),
            event_description: Some(DEFAULT_CREATION_ENTRY_EVENT_DESCRIPTION.to_string()),
            event_cover_image_src: Some(DEFAULT_CREATION_ENTRY_EVENT_COVER_IMAGE_SRC.to_string()),
            event_prize_pool_mud_points: DEFAULT_CREATION_ENTRY_EVENT_PRIZE_POOL_MUD_POINTS,
            event_starts_at_text: Some(DEFAULT_CREATION_ENTRY_EVENT_STARTS_AT_TEXT.to_string()),
            event_ends_at_text: Some(DEFAULT_CREATION_ENTRY_EVENT_ENDS_AT_TEXT.to_string()),
            event_banners_json: Some(module_runtime::default_creation_entry_event_banners_json()),
        });
    }

    for seed in default_creation_entry_type_configs(now) {
        if ctx
            .db
            .creation_entry_type_config()
            .id()
            .find(&seed.id)
            .is_none()
        {
            ctx.db.creation_entry_type_config().insert(seed);
        }
    }

    migrate_rpg_entry_from_old_hidden_default(ctx, now);
    migrate_visual_novel_entry_from_old_visible_default(ctx, now);
    migrate_bark_battle_entry_to_open_default(ctx, now);
    migrate_baby_object_match_entry_from_old_coming_soon_default(ctx, now);
    migrate_wooden_fish_entry_from_old_puzzle_image_default(ctx, now);
}

fn migrate_rpg_entry_from_old_hidden_default(ctx: &ReducerContext, now: Timestamp) {
    let id = "rpg".to_string();
    let Some(row) = ctx.db.creation_entry_type_config().id().find(&id) else {
        return;
    };

    // 中文注释：只开放历史默认隐藏的 RPG 入口，不覆盖后台入口开关后续手动配置。
    let still_old_hidden_default = row.title == "文字冒险"
        && row.subtitle == "经典 RPG 体验"
        && row.badge == "内测"
        && row.image_src == "/creation-type-references/rpg.webp"
        && !row.visible
        && row.open
        && row.sort_order == 10;
    if !still_old_hidden_default {
        return;
    }

    ctx.db
        .creation_entry_type_config()
        .id()
        .update(CreationEntryTypeConfig {
            badge: "可创建".to_string(),
            visible: true,
            open: true,
            updated_at: now,
            ..row
        });
}

fn migrate_bark_battle_entry_to_open_default(ctx: &ReducerContext, now: Timestamp) {
    let id = "bark-battle".to_string();
    let Some(row) = ctx.db.creation_entry_type_config().id().find(&id) else {
        return;
    };

    // 中文注释：只纠偏系统默认汪汪声浪入口，不覆盖后台手动改过标题、排序或可见性的配置。
    let still_system_default = row.title == "汪汪声浪"
        && row.subtitle == "声控对战挑战"
        && row.visible
        && row.sort_order == 85
        && (row.image_src == "/creation-type-references/creative-agent.webp"
            || row.image_src == "/creation-type-references/bark-battle.webp")
        && ((row.badge == "敬请期待" && !row.open) || (row.badge == "可创建" && row.open));
    if !still_system_default {
        return;
    }

    ctx.db
        .creation_entry_type_config()
        .id()
        .update(CreationEntryTypeConfig {
            badge: "可创建".to_string(),
            image_src: "/creation-type-references/bark-battle.webp".to_string(),
            open: true,
            updated_at: now,
            ..row
        });
}

fn migrate_visual_novel_entry_from_old_visible_default(ctx: &ReducerContext, now: Timestamp) {
    let id = "visual-novel".to_string();
    let Some(row) = ctx.db.creation_entry_type_config().id().find(&id) else {
        return;
    };

    // 中文注释：只纠偏历史默认种子，不覆盖后台入口开关里后续手动调整过的视觉小说配置。
    let still_old_visible_default = row.title == "视觉小说"
        && row.subtitle == "分支叙事体验"
        && row.image_src == "/creation-type-references/visual-novel.webp"
        && row.visible
        && ((row.badge == "可创建" && row.open) || (row.badge == "敬请期待" && !row.open))
        && row.sort_order == 60;
    if !still_old_visible_default {
        return;
    }

    ctx.db
        .creation_entry_type_config()
        .id()
        .update(CreationEntryTypeConfig {
            badge: "敬请期待".to_string(),
            visible: false,
            open: false,
            updated_at: now,
            ..row
        });
}

fn migrate_baby_object_match_entry_from_old_coming_soon_default(
    ctx: &ReducerContext,
    now: Timestamp,
) {
    let id = "baby-object-match".to_string();
    let Some(row) = ctx.db.creation_entry_type_config().id().find(&id) else {
        return;
    };

    // 中文注释：宝贝识物已接入完整创作发布链路，只纠偏历史默认敬请期待种子。
    let still_old_coming_soon_default = row.title == "宝贝识物"
        && row.subtitle == "亲子识物分类"
        && row.badge == "敬请期待"
        && row.image_src == "/child-motion-demo/picture-book-grass-stage.png"
        && row.visible
        && !row.open
        && row.sort_order == 90;
    if !still_old_coming_soon_default {
        return;
    }

    ctx.db
        .creation_entry_type_config()
        .id()
        .update(CreationEntryTypeConfig {
            badge: "可创建".to_string(),
            open: true,
            updated_at: now,
            ..row
        });
}

fn migrate_wooden_fish_entry_from_old_puzzle_image_default(ctx: &ReducerContext, now: Timestamp) {
    let id = "wooden-fish".to_string();
    let Some(row) = ctx.db.creation_entry_type_config().id().find(&id) else {
        return;
    };

    // 中文注释：只替换敲木鱼旧默认入口图，不覆盖后台手动设置过的其它展示信息。
    let still_old_puzzle_image_default = row.title == "敲木鱼"
        && row.subtitle == "点击祈福轻玩法"
        && row.badge == "可创建"
        && row.image_src == "/creation-type-references/puzzle.webp"
        && row.visible
        && row.open
        && row.sort_order == 47;
    if !still_old_puzzle_image_default {
        return;
    }

    ctx.db
        .creation_entry_type_config()
        .id()
        .update(CreationEntryTypeConfig {
            image_src: "/wooden-fish/default-hit-object.png".to_string(),
            updated_at: now,
            ..row
        });
}

fn default_creation_entry_type_configs(now: Timestamp) -> Vec<CreationEntryTypeConfig> {
    module_runtime::default_creation_entry_type_snapshots(now.to_micros_since_unix_epoch())
        .into_iter()
        .map(|snapshot| CreationEntryTypeConfig {
            id: snapshot.id,
            title: snapshot.title,
            subtitle: snapshot.subtitle,
            badge: snapshot.badge,
            image_src: snapshot.image_src,
            visible: snapshot.visible,
            open: snapshot.open,
            sort_order: snapshot.sort_order,
            updated_at: now,
            category_id: Some(snapshot.category_id),
            category_label: Some(snapshot.category_label),
            category_sort_order: snapshot.category_sort_order,
            unified_creation_spec_json: snapshot.unified_creation_spec_json,
        })
        .collect()
}

fn normalize_unified_creation_spec_json(
    id: &str,
    input: &CreationEntryTypeAdminUpsertInput,
) -> Result<Option<String>, String> {
    let Some(spec_json) = input.unified_creation_spec_json.as_deref() else {
        return Ok(None);
    };
    let normalized = spec_json.trim();
    if normalized.is_empty() {
        return Ok(None);
    }

    let spec =
        shared_contracts::creation_entry_config::decode_unified_creation_spec_response(normalized)?;
    shared_contracts::creation_entry_config::validate_unified_creation_spec_for_play(id, &spec)?;
    shared_contracts::creation_entry_config::encode_unified_creation_spec_response(&spec).map(Some)
}

fn normalize_category_id(value: &str) -> String {
    let normalized = value.trim();
    if normalized.is_empty() {
        DEFAULT_CREATION_ENTRY_CATEGORY_ID.to_string()
    } else {
        normalized.to_string()
    }
}

fn normalize_category_label(value: &str) -> String {
    let normalized = value.trim();
    if normalized.is_empty() {
        DEFAULT_CREATION_ENTRY_CATEGORY_LABEL.to_string()
    } else {
        normalized.to_string()
    }
}

fn normalize_optional_category_id(value: Option<&str>) -> String {
    normalize_optional_text(value, DEFAULT_CREATION_ENTRY_CATEGORY_ID)
}

fn normalize_optional_category_label(value: Option<&str>) -> String {
    normalize_optional_text(value, DEFAULT_CREATION_ENTRY_CATEGORY_LABEL)
}

fn normalize_optional_text(value: Option<&str>, fallback: &str) -> String {
    value
        .map(str::trim)
        .filter(|normalized| !normalized.is_empty())
        .unwrap_or(fallback)
        .to_string()
}