#!/usr/bin/env node
/**
 * 向 103 生产「唐」微信用户推送一条早安随机话术预览。
 *
 * Usage:
 *   node scripts/send-morning-greeting-preview-103.mjs
 *   node scripts/send-morning-greeting-preview-103.mjs --user-id <uuid>
 */
import { execSync } from 'node:child_process';
import fs from 'node:fs';
import path from 'node:path';
import { fileURLToPath } from 'node:url';

const root = path.join(path.dirname(fileURLToPath(import.meta.url)), '..');
const HOST = 'john@114.85.107.50';
const REMOTE_ROOT = '/Users/john/Project/Memind';
const NODE103 = '/opt/homebrew/opt/node@24/bin/node';
const DEFAULT_TANG_USER_ID = 'a70ff537-8908-486e-9b6c-042e07cc25db';

function parseUserId(argv) {
  for (let i = 0; i < argv.length; i += 1) {
    if (argv[i] === '--user-id') return String(argv[i + 1] ?? '').trim();
  }
  return DEFAULT_TANG_USER_ID;
}

function sh(cmd) {
  execSync(cmd, { stdio: 'inherit' });
}

const userId = parseUserId(process.argv.slice(2));
const remoteLib = `${REMOTE_ROOT}/wechat/morning-greeting-library.mjs`;
const remoteRunner = `${REMOTE_ROOT}/.tmp-send-morning-greeting-preview.mjs`;

const remoteScript = `
import path from 'node:path';
import mysql from 'mysql2/promise';
import { formatMorningGreetingDeliveryText } from './wechat/morning-greeting-library.mjs';

const USER_ID = ${JSON.stringify(userId)};

process.loadEnvFile(path.join('${REMOTE_ROOT}', '.env'));
const pool = mysql.createPool({ uri: process.env.DATABASE_URL, connectionLimit: 2 });
const appId = process.env.H5_WECHAT_MP_APP_ID ?? process.env.WECHAT_MP_APP_ID;
const appSecret = process.env.H5_WECHAT_MP_APP_SECRET ?? process.env.WECHAT_MP_APP_SECRET;
if (!appId || !appSecret) throw new Error('missing wechat credentials');

const [users] = await pool.query(
  'SELECT id, username, display_name FROM h5_users WHERE id = ? LIMIT 1',
  [USER_ID],
);
const user = users?.[0];
if (!user) throw new Error('user not found: ' + USER_ID);

const [ident] = await pool.query(
  'SELECT openid FROM h5_user_wechat_identities WHERE user_id = ? AND app_id = ? LIMIT 1',
  [USER_ID, appId],
);
const openid = ident?.[0]?.openid;
if (!openid) throw new Error('user not bound to wechat: ' + USER_ID);

const text = formatMorningGreetingDeliveryText({
  userId: USER_ID,
  timezone: process.env.H5_DEFAULT_TIMEZONE || 'Asia/Shanghai',
});

const tokenRes = await fetch('https://api.weixin.qq.com/cgi-bin/stable_token', {
  method: 'POST',
  headers: { 'Content-Type': 'application/json' },
  body: JSON.stringify({ grant_type: 'client_credential', appid: appId, secret: appSecret }),
});
const tokenPayload = await tokenRes.json();
if (!tokenPayload.access_token) throw new Error(JSON.stringify(tokenPayload));

const sendRes = await fetch(
  'https://api.weixin.qq.com/cgi-bin/message/custom/send?access_token=' + encodeURIComponent(tokenPayload.access_token),
  {
    method: 'POST',
    headers: { 'Content-Type': 'application/json' },
    body: JSON.stringify({ touser: openid, msgtype: 'text', text: { content: text } }),
  },
);
const sendPayload = await sendRes.json();
if (Number(sendPayload.errcode ?? 0) !== 0) throw new Error(JSON.stringify(sendPayload));

console.log(JSON.stringify({
  ok: true,
  userId: USER_ID,
  username: user.username,
  displayName: user.display_name,
  openid: openid.slice(0, 8) + '...',
  preview: text,
}, null, 2));
await pool.end();
`.trim();

const localLib = path.join(root, 'wechat/morning-greeting-library.mjs');
const localScheduleTime = path.join(root, 'schedule-time.mjs');
const localRunner = path.join(root, '.tmp-send-morning-greeting-preview.mjs');
fs.writeFileSync(localRunner, remoteScript);
sh(`scp -q ${localLib} ${HOST}:${remoteLib}`);
sh(`scp -q ${localScheduleTime} ${HOST}:${REMOTE_ROOT}/schedule-time.mjs`);
sh(`scp -q ${localRunner} ${HOST}:${remoteRunner}`);
try {
  sh(`ssh -o BatchMode=yes ${HOST} 'cd ${REMOTE_ROOT} && ${NODE103} ${remoteRunner} && rm -f ${remoteRunner}'`);
} finally {
  fs.unlinkSync(localRunner);
}