#!/usr/bin/env node
'use strict';

/**
 * 把 LibreDesk 的 app.root_url 设置为公网 HTTPS 地址（WhatsApp webhook 必须）。
 * 用法：node scripts/set-public-url.js https://xxx.trycloudflare.com
 */
const fs = require('fs');
const path = require('path');

const ROOT = path.resolve(__dirname, '..');
const publicURL = String(process.argv[2] || '').trim().replace(/\/+$/, '');
if (!/^https:\/\//.test(publicURL)) {
  console.error('用法: node scripts/set-public-url.js https://<public-host>');
  process.exit(1);
}

function loadEnv(file) {
  const out = {};
  for (const line of fs.readFileSync(file, 'utf8').split('\n')) {
    const t = line.trim();
    if (!t || t.startsWith('#')) continue;
    const eq = t.indexOf('=');
    if (eq < 0) continue;
    let v = t.slice(eq + 1).trim();
    if ((v.startsWith('"') && v.endsWith('"')) || (v.startsWith("'") && v.endsWith("'"))) v = v.slice(1, -1);
    out[t.slice(0, eq).trim()] = v;
  }
  return out;
}

async function main() {
  const env = loadEnv(path.join(ROOT, '.env'));
  const base = (env.LIBREDESK_BASE_URL || 'http://192.168.31.61:9000').replace(/\/+$/, '');

  const login = await fetch(base + '/api/v1/auth/login', {
    method: 'POST',
    headers: { 'Content-Type': 'application/json' },
    body: JSON.stringify({ email: env.LIBREDESK_SYSTEM_EMAIL || 'System', password: env.LIBREDESK_SYSTEM_USER_PASSWORD }),
  });
  if (!login.ok) throw new Error(`login failed: HTTP ${login.status}`);
  const cookies = login.headers.getSetCookie().map((c) => c.split(';')[0]);
  const csrfCookie = cookies.find((c) => c.startsWith('csrf_token='));
  const csrf = csrfCookie.slice(csrfCookie.indexOf('=') + 1);

  const keys = [
    'app.site_name', 'app.lang', 'app.max_file_upload_size', 'app.favicon_url', 'app.logo_url',
    'app.root_url', 'app.allowed_file_upload_extensions', 'app.timezone', 'app.business_hours_id',
    'app.show_conversation_subject',
  ];
  const currentRes = await fetch(base + '/api/v1/settings/general', { headers: { Cookie: cookies.join('; ') } });
  const currentText = await currentRes.text();
  let current = {};
  try { current = JSON.parse(currentText).data || JSON.parse(currentText); } catch { /* ignore */ }
  const body = {};
  for (const k of keys) if (k in current) body[k] = current[k];
  body['app.root_url'] = publicURL;

  const res = await fetch(base + '/api/v1/settings/general', {
    method: 'PUT',
    headers: { Cookie: cookies.join('; '), 'Content-Type': 'application/json', 'X-CSRFTOKEN': csrf },
    body: JSON.stringify(body),
  });
  const text = await res.text();
  if (!res.ok) throw new Error(`update failed: HTTP ${res.status} ${text.slice(0, 200)}`);
  console.log(`root_url 已设置为: ${publicURL}`);
}

main().catch((err) => {
  console.error('[set-public-url]', err.message);
  process.exit(1);
});