import { registerScheduledJob } from "../schedules/registry.ts";
import type { ServerContext, ServerModule } from "../types.ts";
import { registerSourcesCapabilities } from "./capabilities.ts";
import { decisionRoutes } from "./routes/decisions.ts";
import { enrichRoutes } from "./routes/enrich.ts";
import { identityRoutes } from "./routes/identity.ts";
import { sourcesRoutes } from "./routes/sources.ts";
import { workbenchRoutes } from "./routes/workbench.ts";
import { type RuntimeOverrides, SourcesRuntime } from "./runtime.ts";
import { readOnlyReconcile, tickFeeds, tickReviews, tickSnapshots } from "./scheduler.ts";
import { tickSiteHealth, tickSiteUserData } from "./service/account.ts";
import { BACKFILL_LANGUAGES_JOB, backfillLanguages } from "./service/backfill-languages.ts";
import { registerSourcesTasks, sourcesOutboxRoutes } from "./tasks.ts";

/**
 * W2-B 来源/身份/元数据:site、site_account、feed_source;ingestFeed / resolveObservation / refreshMetadata / snapshotSite;
 * observation/source_release 写入与去重;身份解析、待识别池与 decision;站点工作台 API。
 * 发出 feed.due、feed.gap_suspected、release.observed(自消费)与 release.resolved、decision.created/updated。
 */
export function createSourcesIdentityModule(overrides: RuntimeOverrides = {}): ServerModule & {
  runtime(ctx: ServerContext): SourcesRuntime;
} {
  const runtimes = new WeakMap<ServerContext, SourcesRuntime>();
  const runtime = (ctx: ServerContext) => {
    let rt = runtimes.get(ctx);
    if (!rt) {
      rt = new SourcesRuntime(ctx, overrides);
      runtimes.set(ctx, rt);
    }
    return rt;
  };

  return {
    name: "sources-identity",
    runtime,
    registerRoutes(app, ctx) {
      const rt = () => runtime(ctx);
      sourcesRoutes(app, rt);
      workbenchRoutes(app, rt);
      identityRoutes(app, rt);
      enrichRoutes(app, rt);
      decisionRoutes(app, rt);
    },
    registerTasks(registry, ctx) {
      registerSourcesTasks(registry, () => runtime(ctx));
    },
    outboxRoutes: () => sourcesOutboxRoutes,
    registerCapabilities(registry, ctx) {
      registerSourcesCapabilities(registry, () => runtime(ctx));
    },
    /** 周期扫描登记到定时任务注册表(schedules 模块的调度器驱动);周期是总扫描频率 */
    start(ctx) {
      const rt = runtime(ctx);
      const everyMs = overrides.schedulerIntervalMs ?? 30_000;
      const job = (key: string, name: string, description: string, fn: (rt: SourcesRuntime) => Promise<number>) =>
        registerScheduledJob(ctx, {
          key,
          defaults: { name, description, group: "collect", schedule: { type: "interval", everyMs } },
          run: async () => {
            if (await readOnlyReconcile(rt)) return { status: "skipped", summary: "只读对账模式" };
            return { summary: `${await fn(rt)} 项` };
          },
        });
      job("feeds.poll", "RSS 轮询", "按各 RSS 自己的间隔抓取新资源", tickFeeds);
      job("sites.snapshot", "站点快照", "扫描到周期的站点并入队快照", tickSnapshots);
      job("identity.review", "未识别复查", "到期的未识别条目重新识别", tickReviews);
      // W9-A 站点中心:用户数据每 6 小时、健康检测每小时(可在定时任务页关闭或改周期)
      registerScheduledJob(ctx, {
        key: "sites.user_data",
        defaults: {
          name: "站点数据刷新",
          description: "刷新站点账号的上传、下载和分享率；登录失效的账密账号自动重登一次",
          group: "collect",
          schedule: { type: "interval", everyMs: 6 * 3_600_000 },
          firstRun: "after_interval",
        },
        run: async ({ slot }) => {
          if (await readOnlyReconcile(rt)) return { status: "skipped", summary: "只读对账模式" };
          return { summary: `${await tickSiteUserData(rt, slot)} 个账号` };
        },
      });
      registerScheduledJob(ctx, {
        key: "sites.health_check",
        defaults: {
          name: "站点健康检测",
          description: "检查到期的站点能否打开、是否还在登录（每个站点按自己的检测间隔），结果在站点页",
          group: "collect",
          schedule: { type: "interval", everyMs: 3_600_000 },
          firstRun: "after_interval",
        },
        run: async () => ({ summary: `${await tickSiteHealth(rt)} 个站点` }),
      });
      // FIX-5 存量元数据回刷:部署后首次启动即运行,跑完自动停用;可在计划页手动再执行
      registerScheduledJob(ctx, {
        key: BACKFILL_LANGUAGES_JOB,
        lane: "maintenance",
        defaults: {
          name: "元数据语言回刷",
          description: "按语言设置重新拉一遍作品的标题、简介和每集信息；跑完自动停用，可手动再执行",
          group: "maintain",
          schedule: { type: "interval", everyMs: 24 * 3_600_000 },
          firstRun: "now",
        },
        run: async ({ runId, jobId }) => {
          if (await readOnlyReconcile(rt)) return { status: "skipped", summary: "只读对账模式" };
          const r = await backfillLanguages(rt, { runId, jobId, disableWhenDone: true });
          return { status: r.status, summary: r.summary };
        },
      });
    },
  };
}

export const sourcesIdentityModule = createSourcesIdentityModule();