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,
}

#[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,
}

#[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),
        },
    }
}

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 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,
    };
    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)
}

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,
            updated_at_micros: row.updated_at.to_micros_since_unix_epoch(),
        })
        .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,
        },
        creation_types,
        updated_at_micros: header.updated_at.to_micros_since_unix_epoch(),
    })
}

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,
        });
    }

    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_visual_novel_entry_from_old_visible_default(ctx, now);
}

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 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,
        })
        .collect()
}