#!/usr/bin/env node
/**
 * 复现「新建会话后立刻发消息，消息不显示」（2026-11-11）
 *
 * 不读代码推断，在真实浏览器里按用户操作顺序跑：
 *   1. 打开聊天页 → 点「新建对话」→ 弹窗里选容器
 *   2. **立刻**在输入框里输入并回车
 *   3. 每 200ms 采样消息区，看消息何时出现、输入框何时清空
 *
 * 用法：node scripts/repro-new-session-send.mjs
 */
import { chromium } from 'playwright';
import { readFileSync } from 'node:fs';
import { dirname, resolve } from 'node:path';
import { fileURLToPath } from 'node:url';

const here = dirname(fileURLToPath(import.meta.url));
const login = JSON.parse(readFileSync(resolve(here, '../.claude/dev-login.json'), 'utf8'));
const BASE = 'http://localhost:4200';
const AGENT = process.argv[2] ?? 'lj-test';

const b = await chromium.launch({ channel: 'chrome' });
const ctx = await b.newContext({ viewport: { width: 1440, height: 900 } });
const page = await ctx.newPage();
await page.addInitScript(
  ([token, me]) => {
    localStorage.setItem('fmode_session_token', token);
    localStorage.setItem('fmode_me', me);
  },
  [login.token, JSON.stringify(login.me)],
);

const errors = [];
page.on('pageerror', (e) => errors.push(String(e).slice(0, 200)));
page.on('console', (m) => {
  if (m.type() === 'error') errors.push('console: ' + m.text().slice(0, 200));
});

console.log('=== 1. 打开聊天页 ===');
await page.goto(`${BASE}/desktop/chat`, { waitUntil: 'domcontentloaded', timeout: 60_000 });
await page.waitForTimeout(6000);

console.log('=== 2. 点「新建对话」 ===');
await page.locator('text=新建对话').first().click();
await page.waitForTimeout(2000);

console.log(`=== 3. 选容器 ${AGENT} ===`);
const opt = page.locator(`text=${AGENT}`).last();
await opt.click();
await page.waitForTimeout(4000);
console.log('    URL:', page.url());

/* 确认输入框就绪 */
const ta = page.locator('textarea').first();
await ta.waitFor({ state: 'visible', timeout: 20_000 });

console.log('\n=== 4. 立刻输入并回车（模拟用户"新建完就发"）===');
const TEXT = '测试' + Date.now().toString().slice(-4);
await ta.fill(TEXT);
const t0 = Date.now();
await ta.press('Enter');

console.log('\n=== 5. 采样（每 200ms，最多 20 秒）===');
let firstSeenAt = null;
let inputClearedAt = null;
for (let i = 0; i < 100; i++) {
  const snap = await page.evaluate(() => {
    const ta = document.querySelector('textarea');
    return {
      inputVal: ta ? ta.value : '(无)',
      bodyText: (document.body.innerText || '').slice(0, 6000),
    };
  });
  const ms = Date.now() - t0;
  if (snap.inputVal === '' && inputClearedAt === null) {
    inputClearedAt = ms;
    console.log(`   ${ms}ms 输入框已清空`);
  }
  /* 消息区出现该文本（排除输入框里的那份） */
  if (snap.bodyText.includes(TEXT) && firstSeenAt === null) {
    firstSeenAt = ms;
    console.log(`   ${ms}ms ✅ 消息出现在页面上`);
  }
  if (i % 10 === 0 && firstSeenAt === null) {
    console.log(`   ${ms}ms 还没出现 | 输入框="${snap.inputVal.slice(0, 20)}"`);
  }
  if (firstSeenAt !== null && inputClearedAt !== null) break;
  await page.waitForTimeout(200);
}

console.log('\n=== 结果 ===');
console.log(`文本: "${TEXT}"`);
console.log(`输入框清空: ${inputClearedAt === null ? '❌ 从未清空' : inputClearedAt + 'ms'}`);
console.log(`消息出现:   ${firstSeenAt === null ? '❌ 20 秒内从未出现' : firstSeenAt + 'ms'}`);
if (firstSeenAt !== null && firstSeenAt > 1500) {
  console.log('⚠️ 超过 1.5 秒 —— 用户能感知到卡顿');
}
console.log('页面错误:', errors.length ? errors.slice(0, 5) : '无');

await page.screenshot({ path: 'test-results/repro-new-session.png' });
await b.close();