#!/usr/bin/env node
/**
 * Cleanup Tang's duplicate scheduled tasks on 103.
 * Dry-run by default; pass --apply to mutate rows.
 */
import process from 'node:process';
import mysql from 'mysql2/promise';
import { loadH5Environment } from './load-env.mjs';

loadH5Environment(import.meta.dirname);

const TANG = 'a70ff537-8908-486e-9b6c-042e07cc25db';
const DUPLICATE_WEATHER_TASK_ID = '66f0ee11-7777-415f-affd-34422c772d0f';
const KEEP_WEATHER_TASK_ID = '23456db0-918e-4055-9ca3-e17e83b2dc24';

const fmt = (ms) => new Date(Number(ms)).toLocaleString('zh-CN', {
  timeZone: 'Asia/Shanghai',
  hour12: false,
});

async function main() {
  const apply = process.argv.includes('--apply');
  const pool = mysql.createPool({ uri: process.env.DATABASE_URL, connectionLimit: 2 });
  const now = Date.now();
  const plan = [];

  const [dupRows] = await pool.query(
    `SELECT id, title, status, hour, minute, last_run_at, created_at
     FROM h5_scheduled_tasks
     WHERE id = ? AND user_id = ?
     LIMIT 1`,
    [DUPLICATE_WEATHER_TASK_ID, TANG],
  );
  const dup = dupRows[0];
  if (!dup) {
    plan.push({ taskId: DUPLICATE_WEATHER_TASK_ID, action: 'skip', reason: 'not_found' });
  } else if (dup.status === 'cancelled') {
    plan.push({ taskId: DUPLICATE_WEATHER_TASK_ID, action: 'skip', reason: 'already_cancelled', title: dup.title });
  } else {
    plan.push({
      taskId: DUPLICATE_WEATHER_TASK_ID,
      title: dup.title,
      status: dup.status,
      schedule: `${dup.hour}:${String(dup.minute).padStart(2, '0')}`,
      keepTaskId: KEEP_WEATHER_TASK_ID,
      action: apply ? 'cancel_duplicate' : 'would_cancel_duplicate',
    });
    if (apply) {
      await pool.query(
        `UPDATE h5_scheduled_tasks
         SET status = 'cancelled', updated_at = ?, last_error = NULL
         WHERE id = ? AND user_id = ?`,
        [now, DUPLICATE_WEATHER_TASK_ID, TANG],
      );
    }
  }

  const [activeRows] = await pool.query(
    `SELECT id, title, status, hour, minute, next_run_at
     FROM h5_scheduled_tasks
     WHERE user_id = ? AND status IN ('active', 'locked')
     ORDER BY hour, minute, created_at`,
    [TANG],
  );

  console.log(JSON.stringify({ apply, now: fmt(now), plan, remainingActive: activeRows.map((row) => ({
    id: row.id,
    title: row.title,
    status: row.status,
    schedule: `${row.hour}:${String(row.minute).padStart(2, '0')}`,
    nextRunAt: fmt(row.next_run_at),
  })) }, null, 2));

  await pool.end();
}

main().catch((err) => {
  console.error(err);
  process.exit(1);
});