/**
 * 随产品发布的站点注册表(迁移账本 SA1)。
 * 对应 MP `SitesHelper.get_indexers()/get_indexer(domain)`(闭源,sites.pyi)与
 * `IndexerModule` 按 `indexer.parser` 分派专用解析器(`mTorrent` → MTorrentSpider,其余 → SiteSpider)。
 * 加站:MovieClaw 来源重跑 scripts/mp-sync/movieclaw-import.mjs;其他来源新增 JSON 并登记到 definitions/。
 */

import { BUILTIN_SITE_DEFINITIONS, type SiteDefinition } from "./definitions/index.ts";
import type { SiteAdapterDeps } from "./deps.ts";
import { createMteamAdapter } from "./mteam/adapter.ts";
import type { MteamDefinition } from "./mteam/definition.ts";
import { createSpiderSiteAdapter } from "./spider/adapter.ts";
import type { IndexerDefinition } from "./spider/schema.ts";
import { createSpecializedAdapterFor } from "./spiders/index.ts";
import type { SpecializedSiteDefinition } from "./spiders/types.ts";
import type { SiteAdapter } from "./types.ts";

export type { SiteDefinition };

/** 全部内置定义(含 enabled:false 的未实测站点) */
export const SITE_DEFINITIONS: Readonly<Record<string, SiteDefinition>> = BUILTIN_SITE_DEFINITIONS;

/** MP `SitesHelper.get_indexer`:按 id 取定义;未知返回 undefined */
export function getSiteDefinition(id: string): SiteDefinition | undefined {
  return SITE_DEFINITIONS[id];
}

/** MP `SitesHelper.get_indexers`:列出定义;默认含未启用站点,`enabledOnly` 只列 enabled !== false */
export function listSiteDefinitions(opts: { enabledOnly?: boolean } = {}): SiteDefinition[] {
  return Object.values(SITE_DEFINITIONS)
    .filter((d) => !opts.enabledOnly || d.enabled !== false)
    .sort((a, b) => a.id.localeCompare(b.id));
}

/**
 * MP `IndexerModule` 按 `indexer.parser` 分派:mTorrent → 馒头适配器;SPIDER_PARSER_CLASSES 其余键(umt.kind=api)
 * → 专用 spider 适配器;其余 → 通用 SiteSpider。
 */
export function createSiteAdapter(def: SiteDefinition, deps: SiteAdapterDeps): SiteAdapter {
  switch (def.umt.kind) {
    case "mteam":
      return createMteamAdapter(def as MteamDefinition, deps);
    case "api":
      return createSpecializedAdapterFor(def as SpecializedSiteDefinition, deps);
    default:
      return createSpiderSiteAdapter(def as IndexerDefinition, deps);
  }
}

export function getSiteAdapter(siteId: string, deps: SiteAdapterDeps): SiteAdapter {
  const def = SITE_DEFINITIONS[siteId];
  if (!def) throw new Error(`未知站点:${siteId}`);
  return createSiteAdapter(def, deps);
}