UI Demo

// Run this for each page in the flow BEFORE writing the demo script
const fields = await page.evaluate(() => {
  const els = [];
  document.querySelectorAll('input, select, textarea, button, [contenteditable]').forEach(el => {
    if (el.offsetParent !== null) {
      els.push({
        tag: el.tagName,
        type: el.type || '',
        name: el.name || '',
        placeholder: el.placeholder || '',
        text: el.textContent?.trim().substring(0, 40) || '',
        contentEditable: el.contentEditable === 'true',
        role: el.getAttribute('role') || '',
      });
    }
  });
  return els;
});
console.log(JSON.stringify(fields, null, 2));

/purchase-requests/new:
  - 预算代码: <select> (页面上的第一个下拉框，4个选项)
  - 期望交付日期: <input type="date">
  - 背景说明: <textarea> (非输入框)
  - BOM表: 可内联编辑的单元格，包含 span.cursor-pointer -> input 模式
  - 提交: <button> 文本="提交"

/purchase-requests/N (详情):
  - 评论: <input placeholder="输入消息..."> 支持 @用户 和 #PR 标签
  - 发送: <button> 文本="发送" (在输入内容前处于禁用状态)

async function ensureVisible(page, locator, label) {
  const el = typeof locator === 'string' ? page.locator(locator).first() : locator;
  const visible = await el.isVisible().catch(() => false);
  if (!visible) {
    const msg = `REHEARSAL FAIL: "${label}" not found - selector: ${typeof locator === 'string' ? locator : '(locator object)'}`;
    console.error(msg);
    const found = await page.evaluate(() => {
      return Array.from(document.querySelectorAll('button, input, select, textarea, a'))
        .filter(el => el.offsetParent !== null)
        .map(el => `${el.tagName}[${el.type || ''}] "${el.textContent?.trim().substring(0, 30)}"`)
        .join('\n  ');
    });
    console.error('  Visible elements:\n  ' + found);
    return false;
  }
  console.log(`REHEARSAL OK: "${label}"`);
  return true;
}

const steps = [
  { label: 'Login email field', selector: '#email' },
  { label: 'Login submit', selector: 'button[type="submit"]' },
  { label: 'New Request button', selector: 'button:has-text("New Request")' },
  { label: 'Budget Code select', selector: 'select' },
  { label: 'Delivery date', selector: 'input[type="date"]:visible' },
  { label: 'Description field', selector: 'textarea:visible' },
  { label: 'Add Item button', selector: 'button:has-text("Add Item")' },
  { label: 'Submit button', selector: 'button:has-text("Submit")' },
];

let allOk = true;
for (const step of steps) {
  if (!await ensureVisible(page, step.selector, step.label)) {
    allOk = false;
  }
}
if (!allOk) {
  console.error('REHEARSAL FAILED - fix selectors before recording');
  process.exit(1);
}
console.log('REHEARSAL PASSED - all selectors verified');

async function injectCursor(page) {
  await page.evaluate(() => {
    if (document.getElementById('demo-cursor')) return;
    const cursor = document.createElement('div');
    cursor.id = 'demo-cursor';
    cursor.innerHTML = `<svg width="24" height="24" viewBox="0 0 24 24" fill="none" xmlns="http://www.w3.org/2000/svg">
      <path d="M5 3L19 12L12 13L9 20L5 3Z" fill="white" stroke="black" stroke-width="1.5" stroke-linejoin="round"/>
    </svg>`;
    cursor.style.cssText = `
      position: fixed; z-index: 999999; pointer-events: none;
      width: 24px; height: 24px;
      transition: left 0.1s, top 0.1s;
      filter: drop-shadow(1px 1px 2px rgba(0,0,0,0.3));
    `;
    cursor.style.left = '0px';
    cursor.style.top = '0px';
    document.body.appendChild(cursor);
    document.addEventListener('mousemove', (e) => {
      cursor.style.left = e.clientX + 'px';
      cursor.style.top = e.clientY + 'px';
    });
  });
}

async function moveAndClick(page, locator, label, opts = {}) {
  const { postClickDelay = 800, ...clickOpts } = opts;
  const el = typeof locator === 'string' ? page.locator(locator).first() : locator;
  const visible = await el.isVisible().catch(() => false);
  if (!visible) {
    console.error(`WARNING: moveAndClick skipped - "${label}" not visible`);
    return false;
  }
  try {
    await el.scrollIntoViewIfNeeded();
    await page.waitForTimeout(300);
    const box = await el.boundingBox();
    if (box) {
      await page.mouse.move(box.x + box.width / 2, box.y + box.height / 2, { steps: 10 });
      await page.waitForTimeout(400);
    }
    await el.click(clickOpts);
  } catch (e) {
    console.error(`WARNING: moveAndClick failed on "${label}": ${e.message}`);
    return false;
  }
  await page.waitForTimeout(postClickDelay);
  return true;
}

async function typeSlowly(page, locator, text, label, charDelay = 35) {
  const el = typeof locator === 'string' ? page.locator(locator).first() : locator;
  const visible = await el.isVisible().catch(() => false);
  if (!visible) {
    console.error(`WARNING: typeSlowly skipped - "${label}" not visible`);
    return false;
  }
  await moveAndClick(page, el, label);
  await el.fill('');
  await el.pressSequentially(text, { delay: charDelay });
  await page.waitForTimeout(500);
  return true;
}

await page.evaluate(() => window.scrollTo({ top: 400, behavior: 'smooth' }));
await page.waitForTimeout(1500);

async function panElements(page, selector, maxCount = 6) {
  const elements = await page.locator(selector).all();
  for (let i = 0; i < Math.min(elements.length, maxCount); i++) {
    try {
      const box = await elements[i].boundingBox();
      if (box && box.y < 700) {
        await page.mouse.move(box.x + box.width / 2, box.y + box.height / 2, { steps: 8 });
        await page.waitForTimeout(600);
      }
    } catch (e) {
      console.warn(`WARNING: panElements skipped element ${i} (selector: "${selector}"): ${e.message}`);
    }
  }
}

async function injectSubtitleBar(page) {
  await page.evaluate(() => {
    if (document.getElementById('demo-subtitle')) return;
    const bar = document.createElement('div');
    bar.id = 'demo-subtitle';
    bar.style.cssText = `
      position: fixed; bottom: 0; left: 0; right: 0; z-index: 999998;
      text-align: center; padding: 12px 24px;
      background: rgba(0, 0, 0, 0.75);
      color: white; font-family: -apple-system, "Segoe UI", sans-serif;
      font-size: 16px; font-weight: 500; letter-spacing: 0.3px;
      transition: opacity 0.3s;
      pointer-events: none;
    `;
    bar.textContent = '';
    bar.style.opacity = '0';
    document.body.appendChild(bar);
  });
}

async function showSubtitle(page, text) {
  await page.evaluate((t) => {
    const bar = document.getElementById('demo-subtitle');
    if (!bar) return;
    if (t) {
      bar.textContent = t;
      bar.style.opacity = '1';
    } else {
      bar.style.opacity = '0';
    }
  }, text);
  if (text) await page.waitForTimeout(800);
}

await showSubtitle(page, 'Step 1 - Logging in');
await showSubtitle(page, 'Step 2 - Dashboard overview');
await showSubtitle(page, '');

'use strict';
const { chromium } = require('playwright');
const path = require('path');
const fs = require('fs');

const BASE_URL = process.env.QA_BASE_URL || 'http://localhost:3000';
const VIDEO_DIR = path.join(__dirname, 'screenshots');
const OUTPUT_NAME = 'demo-FEATURE.webm';
const REHEARSAL = process.argv.includes('--rehearse');

// Paste injectCursor, injectSubtitleBar, showSubtitle, moveAndClick,
// typeSlowly, ensureVisible, and panElements here.

(async () => {
  const browser = await chromium.launch({ headless: true });

  if (REHEARSAL) {
    const context = await browser.newContext({ viewport: { width: 1280, height: 720 } });
    const page = await context.newPage();
    // Navigate through the flow and run ensureVisible for each selector.
    await browser.close();
    return;
  }

  const context = await browser.newContext({
    recordVideo: { dir: VIDEO_DIR, size: { width: 1280, height: 720 } },
    viewport: { width: 1280, height: 720 }
  });
  const page = await context.newPage();

  try {
    await injectCursor(page);
    await injectSubtitleBar(page);

    await showSubtitle(page, 'Step 1 - Logging in');
    // login actions

    await page.goto(`${BASE_URL}/dashboard`);
    await injectCursor(page);
    await injectSubtitleBar(page);
    await showSubtitle(page, 'Step 2 - Dashboard overview');
    // pan dashboard

    await showSubtitle(page, 'Step 3 - Main workflow');
    // action sequence

    await showSubtitle(page, 'Step 4 - Result');
    // final reveal
    await showSubtitle(page, '');
  } catch (err) {
    console.error('DEMO ERROR:', err.message);
  } finally {
    await context.close();
    const video = page.video();
    if (video) {
      const src = await video.path();
      const dest = path.join(VIDEO_DIR, OUTPUT_NAME);
      try {
        fs.copyFileSync(src, dest);
        console.log('Video saved:', dest);
      } catch (e) {
        console.error('ERROR: Failed to copy video:', e.message);
        console.error('  Source:', src);
        console.error('  Destination:', dest);
      }
    }
    await browser.close();
  }
})();

# Phase 2: Rehearse
node demo-script.cjs --rehearse

# Phase 3: Record
node demo-script.cjs