import cron, { type ScheduledTask } from "node-cron";
import { backfillAccountProfiles } from "./account-enrichment-service";
import { runScheduledCollections } from "./collection-service";
import { withDatabaseLock } from "./database";
import {
  resolveCollectionMcpConfig,
  type CollectionMcpBindings,
} from "./mcp-collection-client";
import { ensureSchema, getRawDb } from "./mvp-db";
import { getRuntimeEnv, isEnabled } from "./runtime-env";
import {
  resolveWecomConfig,
  type WecomBindings,
} from "./wecom-client";
import { runDueSoonWecomNotifications } from "./wecom-notifier-service";

declare global {
  var __kocLoopScheduler: ScheduledTask | undefined;
}

async function runDailyJob() {
  await withDatabaseLock("koc-loop-daily-collection", 0, async () => {
    await ensureSchema();
    const db = getRawDb();
    const env = getRuntimeEnv();
    const config = resolveCollectionMcpConfig(
      env as unknown as CollectionMcpBindings,
    );
    const collections = await runScheduledCollections(db, Date.now(), config);
    const accounts = await backfillAccountProfiles(db, config, 10);
    let wecom: Awaited<ReturnType<typeof runDueSoonWecomNotifications>> | null =
      null;
    if (isEnabled(env.WECOM_NOTIFY_ENABLED, true)) {
      const wecomConfig = resolveWecomConfig(env as unknown as WecomBindings);
      if (
        wecomConfig.robotWebhook ||
        (wecomConfig.corpId && wecomConfig.agentId && wecomConfig.secret)
      ) {
        try {
          wecom = await runDueSoonWecomNotifications(db, wecomConfig);
        } catch (error) {
          console.error("[KOC LOOP] wecom notify failed", error);
        }
      }
    }
    console.info("[KOC LOOP] daily scheduler completed", {
      collections,
      accounts,
      wecom,
    });
  });
}

export function startScheduler() {
  if (!isEnabled(getRuntimeEnv().ENABLE_SCHEDULER, true)) return;
  if (globalThis.__kocLoopScheduler) return;
  globalThis.__kocLoopScheduler = cron.schedule(
    "0 9 * * *",
    () => void runDailyJob().catch((error) => {
      console.error("[KOC LOOP] daily scheduler failed", error);
    }),
    { timezone: "Asia/Shanghai", noOverlap: true },
  );
  console.info("[KOC LOOP] scheduler enabled at 09:00 Asia/Shanghai");
}