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

/**
 * 端到端验证 widget JWT：
 *   站点身份 → bridge /identity 签 LibreDesk JWT → auth exchange → 带身份开聊
 *   → AI 把该联系人视为已登录（可查订单/建商机）
 *
 * 用法：node scripts/e2e-widget-jwt.js "Can you check the status of my order SO-1?"
 */
const fs = require('fs');
const path = require('path');

const ROOT = path.resolve(__dirname, '..');
const message = process.argv.slice(2).join(' ') || 'Can you check the status of my order SO-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;
}

const sleep = (ms) => new Promise((r) => setTimeout(r, ms));

async function main() {
  const env = loadEnv(path.join(ROOT, '.env'));
  const SITE_ORIGIN = process.env.SITE_ORIGIN || env.IDENTITY_CORS_ORIGIN || 'http://localhost:9000';
  const lr = (env.LIBREDESK_BASE_URL || 'http://localhost:9000').replace(/\/+$/, '');
  const bridge = (env.BRIDGE_BASE_URL || 'http://localhost:4100').replace(/\/+$/, '');
  const inboxUUID = env.LIBREDESK_INBOX_UUID;
  if (!inboxUUID) throw new Error('缺少 LIBREDESK_INBOX_UUID');

  // 1) bridge /identity: 站点身份 -> widget JWT（dev payload；生产用 token）
  const idRes = await fetch(`${bridge}/identity`, {
    method: 'POST',
    headers: { 'Content-Type': 'application/json', Origin: SITE_ORIGIN },
    body: JSON.stringify({
      email: process.env.IDENTITY_EMAIL || 'buyer@test-customer.nl',
      externalUserId: process.env.IDENTITY_EXTERNAL_ID || 'cust-1001',
      firstName: process.env.IDENTITY_FIRST || 'Jan',
      lastName: process.env.IDENTITY_LAST || 'Jansen',
    }),
  });
  const idJson = await idRes.json();
  if (!idRes.ok) throw new Error(`identity failed: ${JSON.stringify(idJson).slice(0, 200)}`);
  console.log(`1) userJWT 签发成功 (external_user_id=${idJson.user.external_user_id})`);

  // 2) widget auth exchange
  const exRes = await fetch(`${lr}/api/v1/widget/chat/auth/exchange`, {
    method: 'POST',
    headers: { 'Content-Type': 'application/json', 'X-Libredesk-Inbox-ID': inboxUUID },
    body: JSON.stringify({ jwt: idJson.userJWT }),
  });
  const exJson = await exRes.json();
  if (!exRes.ok) throw new Error(`auth exchange failed: ${JSON.stringify(exJson).slice(0, 300)}`);
  const sessionToken = exJson.data.session_token;
  console.log(`2) auth exchange 成功 (contact user_id=${exJson.data.user.user_id})`);

  // 3) 带 session 开聊
  const initRes = await fetch(`${lr}/api/v1/widget/chat/conversations/init`, {
    method: 'POST',
    headers: { 'Content-Type': 'application/json', Authorization: `Bearer ${sessionToken}`, 'X-Libredesk-Inbox-ID': inboxUUID },
    body: JSON.stringify({ message }),
  });
  const initJson = await initRes.json();
  if (!initRes.ok) throw new Error(`chat init failed: ${JSON.stringify(initJson).slice(0, 300)}`);
  const convUUID = initJson.data.conversation.uuid;
  console.log(`3) 会话创建: ${convUUID}`);
  console.log(`   visitor message: ${message}`);

  // 4) admin 轮询回复
  const loginRes = await fetch(`${lr}/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 }),
  });
  const adminCookie = loginRes.headers.getSetCookie().map((c) => c.split(';')[0]).join('; ');

  const deadline = Date.now() + 120000;
  let reply = null;
  let last = -1;
  while (Date.now() < deadline) {
    await sleep(3000);
    const res = await fetch(`${lr}/api/v1/conversations/${convUUID}/messages`, { headers: { Cookie: adminCookie } });
    if (!res.ok) continue;
    const body = await res.json();
    const msgs = ((body.data && (body.data.results || body.data.messages)) || []).slice().sort((a, b) => Number(a.id) - Number(b.id));
    if (msgs.length !== last) {
      last = msgs.length;
      const convRes = await fetch(`${lr}/api/v1/conversations/${convUUID}`, { headers: { Cookie: adminCookie } });
      const conv = (await convRes.json()).data || {};
      console.log(`   messages=${msgs.length} assigned_user_id=${conv.assigned_user_id} status=${conv.status}`);
    }
    const ai = msgs.filter((m) => m.type === 'outgoing' && m.sender_type === 'agent' && !m.private).slice(-1)[0];
    if (ai) { reply = ai; break; }
  }

  if (!reply) throw new Error('120 秒内没有 AI 回复');
  console.log('\n===== AI 回复 #1 =====');
  console.log(reply.content);

  const followups = String(process.env.FOLLOWUPS || '').split('||').map((s) => s.trim()).filter(Boolean);
  let round = 1;
  for (const text of followups) {
    round += 1;
    console.log(`\n>> 发送 #${round}: ${text}`);
    const sendRes = await fetch(`${lr}/api/v1/widget/chat/conversations/${convUUID}/message`, {
      method: 'POST',
      headers: { 'Content-Type': 'application/json', Authorization: `Bearer ${sessionToken}`, 'X-Libredesk-Inbox-ID': inboxUUID },
      body: JSON.stringify({ message: text }),
    });
    if (!sendRes.ok) throw new Error(`send follow-up failed: HTTP ${sendRes.status} ${(await sendRes.text()).slice(0, 200)}`);

    const before = last;
    let next = null;
    const deadline2 = Date.now() + 120000;
    while (Date.now() < deadline2) {
      await sleep(3000);
      const res = await fetch(`${lr}/api/v1/conversations/${convUUID}/messages`, { headers: { Cookie: adminCookie } });
      if (!res.ok) continue;
      const body = await res.json();
      const msgs = ((body.data && (body.data.results || body.data.messages)) || []).slice().sort((a, b) => Number(a.id) - Number(b.id));
      const fresh = msgs.filter((m) => m.type === 'outgoing' && m.sender_type === 'agent' && !m.private);
      const latest = fresh.slice(-1)[0];
      if (msgs.length > before && latest && latest.id !== reply.id) { next = latest; break; }
    }
    if (!next) { console.log('  (本轮无新回复)'); continue; }
    reply = next;
    console.log(`===== AI 回复 #${round} =====`);
    console.log(next.content);
  }

  console.log('\n提示：bridge 日志应出现 search_orders / create_opportunity 且 verified=true');
}

main().catch((err) => {
  console.error('[e2e-widget-jwt]', err.message);
  process.exit(1);
});