/**
 * SPDX-License-Identifier: GPL-3.0-only
 * 移植自 MoviePilot(https://github.com/jxxghp/MoviePilot,GPLv3),本文件按 GPLv3 条款提供。
 * @mp-source app/modules/indexer/__init__.py @ e6820a8
 *
 * 站点用户信息解析器注册表与刷新入口。
 * - `IndexerModule.__init__` 里 `ModuleHelper.load('app.modules.indexer.parser', filter=有 schema)` → `USER_PARSER_CLASSES`
 *   (按模块文件名字母序,与 pkgutil 遍历顺序一致;回退时按此顺序尝试)
 * - `IndexerModule.refresh_userdata` → `refreshSiteUserData`:按站点声明的 schema 取解析器;解析后 userid 为空且非公开站时,
 *   依次尝试其他 schema(兼容 schema 标注错误/变种站),其他 schema 的异常只记录不抛出。
 *
 * 与 MP 一致:声明 schema 解析器的异常原样抛出(由调用方记录),只有回退尝试的异常被吞掉。
 * 差异:结果不含凭据;`fetchMessages` 默认 false(MP 由全局 SITE_MESSAGE 控制)。
 */
import type { SiteParserBase, SiteParserClass } from "./base.ts";
import { BitptSiteUserInfo } from "./bitpt.ts";
import { extractDomain } from "./common.ts";
import { DiscuzUserInfo } from "./discuz.ts";
import { FileListSiteUserInfo } from "./file-list.ts";
import { GazelleSiteUserInfo } from "./gazelle.ts";
import { HDDolbySiteUserInfo } from "./hddolby.ts";
import { IptSiteUserInfo } from "./ipt.ts";
import { MTorrentSiteUserInfo } from "./mtorrent.ts";
import { NexusAudiencesSiteUserInfo } from "./nexus-audiences.ts";
import { NexusHhanclubSiteUserInfo } from "./nexus-hhanclub.ts";
import { NexusPhpSiteUserInfo } from "./nexus-php.ts";
import { NexusProjectSiteUserInfo } from "./nexus-project.ts";
import { NexusRabbitSiteUserInfo } from "./nexus-rabbit.ts";
import { RousiSiteUserInfo } from "./rousi.ts";
import { SmallHorseSiteUserInfo } from "./small-horse.ts";
import { SunnyPTSiteUserInfo } from "./sunnypt.ts";
import { TNodeSiteUserInfo } from "./tnode.ts";
import { TorrentLeechSiteUserInfo } from "./torrent-leech.ts";
import type { SiteSchemaValue, SiteUserInfo, SiteUserParserOptions } from "./types.ts";
import { Unit3dSiteUserInfo } from "./unit3d.ts";
import { YemaSiteUserInfo } from "./yema.ts";
import { ZhixingSiteUserInfo } from "./zhixing.ts";

/** 全部解析器(模块字母序:bitpt, discuz, file_list, gazelle, hddolby, ipt, mtorrent, nexus_*, rousi, …) */
export const USER_PARSER_CLASSES: readonly SiteParserClass[] = [
  BitptSiteUserInfo,
  DiscuzUserInfo,
  FileListSiteUserInfo,
  GazelleSiteUserInfo,
  HDDolbySiteUserInfo,
  IptSiteUserInfo,
  MTorrentSiteUserInfo,
  NexusAudiencesSiteUserInfo,
  NexusHhanclubSiteUserInfo,
  NexusPhpSiteUserInfo,
  NexusProjectSiteUserInfo,
  NexusRabbitSiteUserInfo,
  RousiSiteUserInfo,
  SmallHorseSiteUserInfo,
  SunnyPTSiteUserInfo,
  TNodeSiteUserInfo,
  TorrentLeechSiteUserInfo,
  Unit3dSiteUserInfo,
  YemaSiteUserInfo,
  ZhixingSiteUserInfo,
] as unknown as SiteParserClass[];

export function getUserParserClass(schema: string | null | undefined): SiteParserClass | undefined {
  if (!schema) return undefined;
  return USER_PARSER_CLASSES.find((c) => c.schema === schema);
}

/** refresh_userdata 的站点入参(MP site dict 子集) */
export interface SiteUserDataRequest extends Omit<SiteUserParserOptions, "siteName"> {
  name: string;
  /** 站点声明的解析 schema(SiteSchema 值) */
  schema?: string | null;
  /** 公开站:不报"未找到解析器",也不做 schema 回退 */
  public?: boolean;
}

/** MP `refresh_userdata`:未找到解析器返回 null */
export async function refreshSiteUserData(site: SiteUserDataRequest): Promise<SiteUserInfo | null> {
  const make = (schema: string | null | undefined): SiteParserBase | null => {
    const cls = getUserParserClass(schema);
    if (!cls) return null;
    const { name, schema: _s, public: _p, ...rest } = site;
    return new cls({ ...rest, siteName: name });
  };
  let obj = make(site.schema);
  if (!obj) return null;
  try {
    await obj.parse();
    if (!obj.userid && !site.public) {
      const tried = new Set<string>([String(site.schema)]);
      for (const cls of USER_PARSER_CLASSES) {
        const value = cls.schema as SiteSchemaValue | null;
        if (!value || tried.has(value)) continue;
        tried.add(value);
        const alt = make(value);
        if (!alt) continue;
        try {
          await alt.parse();
        } catch {
          continue;
        }
        if (alt.userid) {
          obj = alt;
          break;
        }
      }
    }
    const info = obj.toUserInfo();
    info.domain = extractDomain(site.url) || null;
    return info;
  } finally {
    obj.clear();
  }
}