#!/usr/bin/env node
/**
 * E2E Booking Flow — irina-vik.ru
 * Register → Book service → Logout → Login → View appointments
 *
 * Environment:
 *   GITEA_ISSUE - Gitea issue to post results (optional)
 */
const fs = require('fs');
const path = require('path');
const gitea = require('./lib/gitea-client');
const { launchBrowser, newContext, navigateTo, BASE_ARGS } = require('./lib/browser-launcher');

const BASE_URL = 'https://irina-vik.ru';
const SCREENSHOT_DIR = path.join(__dirname, '..', 'visual', 'e2e');
const GITEA_ISSUE = parseInt(process.env.GITEA_ISSUE, 10) || null;
const TIMESTAMP = Date.now();

const TEST_EMAIL = `apaw.test.${TIMESTAMP}@mailinator.com`;
const TEST_PASSWORD = 'TestPass123!';
const TEST_NAME = 'Тест';
const TEST_LASTNAME = 'Пользователев';

function ensureDir(d) { if (!fs.existsSync(d)) fs.mkdirSync(d, { recursive: true }); }

async function ss(page, name) {
  const f = path.join(SCREENSHOT_DIR, `e2e-${name}.png`);
  await page.screenshot({ path: f, fullPage: false });
  console.log(`  📸 ${name}`);
  return f;
}

async function main() {
  console.log('═══════════════════════════════════════════════════');
  console.log('  E2E: Register → Book → Logout → Login → Cabinet');
  console.log('═══════════════════════════════════════════════════\n');
  ensureDir(SCREENSHOT_DIR);

  const steps = [];
  const browser = await launchBrowser();
  const ctx = await newContext(browser);
  const page = await ctx.newPage();

  // ─── STEP 1: Register ─────────────────────────────────────
  console.log('📍 Step 1: Registration');
  try {
    await navigateTo(page, BASE_URL);
    await page.waitForTimeout(3000);
    await ss(page, '01-homepage');

    // Open auth modal first (SPA requires clicking "Войти" in header)
    const authModalOpened = await page.evaluate(() => {
      const headerLinks = document.querySelectorAll('a, button');
      for (const l of headerLinks) {
        const text = (l.textContent || '').trim();
        if (text === 'Войти' || text === 'ВОЙТИ') {
          l.click();
          return text;
        }
      }
      // Also try data attributes
      const authBtn = document.querySelector('[data-bs-toggle="modal"], [data-toggle="modal"]');
      if (authBtn) { authBtn.click(); return 'modal-toggle'; }
      return null;
    });
    if (authModalOpened) {
      console.log(`  Opened auth modal: "${authModalOpened}"`);
      await page.waitForTimeout(1500);
    }

    // Open registration tab
    await page.click('a[href="#tab-register"]').catch(() => {});
    // Fallback: try evaluating click in JS
    await page.evaluate(() => {
      const links = document.querySelectorAll('a');
      for (const a of links) {
        if ((a.textContent || '').trim() === 'Регистрация' || (a.href || '').includes('#tab-register')) {
          a.click();
          break;
        }
      }
    });
    await page.waitForTimeout(1500);
    await ss(page, '02-reg-tab');

    // Wait for reg form to appear and scroll modal into view
    await page.waitForSelector('#reg-name', { state: 'visible', timeout: 5000 }).catch(() => {});
    
    // Force scroll modal into view
    await page.evaluate(() => {
      const modal = document.querySelector('.modal.show, .modal-dialog, #authModal');
      if (modal) modal.scrollIntoView();
    });
    await page.waitForTimeout(500);

    // Fill registration form
    const regFields = [
      { selector: '#reg-name', value: TEST_NAME },
      { selector: '#reg-lastname', value: TEST_LASTNAME },
      { selector: '#reg-email', value: TEST_EMAIL },
      { selector: '#reg-phone', value: '+7 (999) 123-45-67' },
      { selector: '#reg-password', value: TEST_PASSWORD },
    ];

    for (const f of regFields) {
      try {
        await page.fill(f.selector, f.value, { timeout: 3000 });
        console.log(`    Filled: ${f.selector}`);
      } catch (e) {
        // Try clicking label first then filling
        try {
          await page.click(f.selector, { timeout: 2000 });
          await page.waitForTimeout(300);
          await page.fill(f.selector, f.value, { timeout: 3000 });
          console.log(`    Filled (after click): ${f.selector}`);
        } catch (e2) {
          console.log(`    ⚠️ Could not fill: ${f.selector} - ${e2.message.slice(0, 60)}`);
        }
      }
    }

    await ss(page, '03-reg-filled');

    // Submit registration
    const submitResult = await page.evaluate(() => {
      const btns = document.querySelectorAll('#tab-register button, #tab-register [type="submit"], .modal button[type="submit"]');
      for (const b of btns) {
        const text = (b.textContent || '').trim().toLowerCase();
        if (text.includes('зарегистриров') || text.includes('регистрац') || text.includes('создать')) {
          b.click();
          return text;
        }
      }
      // Fallback: find any submit in modal
      const modal = document.querySelector('.modal.show');
      if (modal) {
        const btn = modal.querySelector('button:not([class*="close"]):not([class*="back"])');
        if (btn) { btn.click(); return btn.textContent.trim().slice(0, 60); }
      }
      return null;
    });

    if (submitResult) {
      console.log(`  Clicked: "${submitResult}"`);
      await page.waitForTimeout(3000);
      await ss(page, '04-reg-result');
      const resultText = await page.evaluate(() => document.body?.innerText?.slice(0, 1000) || '');
      if (resultText.includes('подтверд') || resultText.includes('успешн') || resultText.includes('письм') || resultText.includes('отправлен')) {
        console.log('  ✅ Registration successful');
        steps.push({ step: 'register', status: 'PASS' });
      } else if (resultText.includes('уже существ') || resultText.includes('занят') || resultText.includes('зарегистрирован')) {
        console.log('  ⚠️ Email already registered');
        steps.push({ step: 'register', status: 'PARTIAL', note: 'email exists' });
      } else {
        console.log(`  Result text: ${resultText.slice(0, 200)}`);
        steps.push({ step: 'register', status: 'DONE', note: 'form submitted' });
      }
    } else {
      console.log('  ⚠️ No submit button found');
      steps.push({ step: 'register', status: 'PARTIAL', note: 'form filled, no submit' });
    }
  } catch (err) {
    console.log(`  ❌ ${err.message.slice(0, 120)}`);
    steps.push({ step: 'register', status: 'FAIL', error: err.message.slice(0, 80) });
  }

  // ─── STEP 2: Book a service ───────────────────────────────
  console.log('\n📍 Step 2: Book a service');
  try {
    // Reload to reset state
    await navigateTo(page, BASE_URL);
    await page.waitForTimeout(3000);

    // Scroll to booking section and click service
    await page.evaluate(() => {
      document.getElementById('page-booking')?.scrollIntoView();
      // Click first service option
      const svc = document.querySelector('.service-option');
      if (svc) svc.click();
      return true;
    });
    await page.waitForTimeout(2000);

    // Now call selectSvcOpt to properly advance to step 2
    const serviceSelected = await page.evaluate(() => {
      if (typeof selectSvcOpt === 'function') {
        const opts = document.querySelectorAll('.service-option');
        if (opts.length > 0) {
          const opt = opts[0];
          const price = opt.getAttribute('data-price') || '3500';
          const id = opt.getAttribute('data-id') || '10';
          selectSvcOpt(opt, parseInt(id), opt.querySelector('div > div')?.textContent?.trim() || 'Консультация', parseInt(price), 60);
          return { clicked: opt.textContent.trim().slice(0, 80) };
        }
      }
      // Fallback: just click
      const first = document.querySelector('.service-option');
      if (first) { first.click(); return { clicked: first.textContent.trim().slice(0, 80) }; }
      return null;
    });
    console.log(`  Service selected: ${JSON.stringify(serviceSelected)}`);
    await page.waitForTimeout(2000);
    await ss(page, '05-booking-step1-service');

    // Step 2: Pick a date from the calendar
    const datePicked = await page.evaluate(() => {
      // Find available days in calendar
      const available = document.querySelectorAll('.calendar-day.available, .day.available, td.available, [class*="day"][class*="available"]');
      if (available.length > 0) {
        available[0].click();
        return { clicked: available[0].textContent.trim(), count: available.length };
      }
      // Try calendar-day
      const calDays = document.querySelectorAll('[class*="calendar"] [class*="day"]:not(.disabled):not(.past):not(.empty)');
      for (const d of calDays) {
        const text = d.textContent.trim();
        if (text && parseInt(text) > 0) {
          d.click();
          return { clicked: text, count: calDays.length };
        }
      }
      return null;
    });
    console.log(`  Date picked: ${JSON.stringify(datePicked)}`);
    await page.waitForTimeout(1500);
    await ss(page, '06-booking-step2-date');

    if (datePicked) {
      // Step 3: Pick a time
      const timePicked = await page.evaluate(() => {
        const slots = document.querySelectorAll('[class*="time-slot"], [class*="slot"]:not(.disabled), .time-option, [class*="slot"][class*="available"]');
        if (slots.length > 0) {
          slots[0].click();
          return { clicked: slots[0].textContent.trim(), count: slots.length };
        }
        // Try buttons with time
        const btns = document.querySelectorAll('.booking-body button:not(.btn-booking-back):not(.calendar-nav)');
        for (const b of btns) {
          const text = b.textContent.trim();
          if (text.match(/\d{1,2}:\d{2}/)) {
            b.click();
            return { clicked: text, count: btns.length };
          }
        }
        return null;
      });
      console.log(`  Time picked: ${JSON.stringify(timePicked)}`);
      await page.waitForTimeout(1000);
      await ss(page, '07-booking-step3-time');

      // Step 4: Fill personal data and submit
      const dataFilled = await page.evaluate(() => {
        const nameInput = document.querySelector('#b-name, [name*="name"], .booking-body input[placeholder*="Имя"]');
        const emailInput = document.querySelector('#b-email, [name*="email"], .booking-body input[placeholder*="email"]');
        const phoneInput = document.querySelector('#b-phone, [name*="phone"], .booking-body input[placeholder*="телефон"]');
        return {
          hasName: !!nameInput,
          hasEmail: !!emailInput,
          hasPhone: !!phoneInput,
        };
      });
      console.log(`  Data form fields: ${JSON.stringify(dataFilled)}`);

      if (dataFilled.hasName || dataFilled.hasEmail) {
        // Since we already registered/logged in, this might be auto-filled or have "login" button
        const submitted = await page.evaluate(() => {
          // Look for submit/confirm button
          const btns = document.querySelectorAll('.booking-body .btn-booking-next, .booking-body button[type="submit"], .booking-body button');
          for (const b of btns) {
            const text = b.textContent.trim().toLowerCase();
            if (text.includes('отправ') || text.includes('подтверд') || text.includes('записать') || text.includes('далее') || text.includes('войти')) {
              b.click();
              return text.slice(0, 60);
            }
          }
          return null;
        });
        console.log(`  Clicked: "${submitted}"`);
        await page.waitForTimeout(3000);
      }
      await ss(page, '08-booking-result');
      steps.push({ step: 'booking', status: 'PASS', service: serviceSelected?.clicked, date: datePicked?.clicked });
    } else {
      console.log('  ⚠️ Could not pick a date');
      await ss(page, '08-booking-no-date');
      steps.push({ step: 'booking', status: 'PARTIAL', note: 'service selected, no date' });
    }
  } catch (err) {
    console.log(`  ❌ ${err.message.slice(0, 120)}`);
    steps.push({ step: 'booking', status: 'FAIL', error: err.message.slice(0, 80) });
  }

  // ─── STEP 3: Logout ──────────────────────────────────────
  console.log('\n📍 Step 3: Logout');
  try {
    await navigateTo(page, BASE_URL);
    await page.waitForTimeout(2000);

    const logoutResult = await page.evaluate(() => {
      const links = document.querySelectorAll('a, button');
      for (const l of links) {
        const text = (l.textContent || '').trim().toLowerCase();
        if (text === 'выйти' || text === 'logout' || text === 'sign out' || text === 'выйти из аккаунта') {
          l.click();
          return text;
        }
      }
      return null;
    });

    if (logoutResult) {
      console.log(`  ✅ Clicked logout: "${logoutResult}"`);
      await page.waitForTimeout(2000);
      await ss(page, '09-logged-out');
      steps.push({ step: 'logout', status: 'PASS' });
    } else {
      console.log('  ⚠️ No logout button (probably not logged in)');
      steps.push({ step: 'logout', status: 'SKIP', note: 'not logged in' });
    }
  } catch (err) {
    console.log(`  ❌ ${err.message.slice(0, 120)}`);
    steps.push({ step: 'logout', status: 'FAIL', error: err.message.slice(0, 80) });
  }

  // ─── STEP 4: Login ───────────────────────────────────────
  console.log('\n📍 Step 4: Login');
  try {
    await navigateTo(page, BASE_URL);
    await page.waitForTimeout(2000);

    // Make sure auth modal is open
    await page.evaluate(() => {
      const authLinks = document.querySelectorAll('a, button');
      for (const l of authLinks) {
        if ((l.textContent || '').trim() === 'Войти' || (l.textContent || '').trim() === 'ВОЙТИ') {
          l.click();
          break;
        }
      }
    });
    await page.waitForTimeout(1000);

    // Click "Войти" tab
    await page.click('a[href="#tab-login"]').catch(() => {});
    await page.evaluate(() => {
      const links = document.querySelectorAll('a');
      for (const a of links) {
        const text = (a.textContent || '').trim();
        if (text === 'Войти' && a.href?.includes('#tab-login')) {
          a.click();
          break;
        }
      }
    });
    await page.waitForTimeout(1500);
    await ss(page, '10-login-tab');

    // Fill login form
    await page.fill('#login-email', TEST_EMAIL).catch(() => {});
    await page.fill('#login-password', TEST_PASSWORD).catch(() => {});
    console.log(`  Filled: ${TEST_EMAIL} / *******`);
    await ss(page, '11-login-filled');

    // Click login button
    const loginBtn = await page.evaluate(() => {
      const btns = document.querySelectorAll('#tab-login button, .modal button');
      for (const b of btns) {
        const text = (b.textContent || '').trim().toLowerCase();
        if (text.includes('войти') || text.includes('login') || text.includes('вход')) {
          b.click();
          return text.slice(0, 60);
        }
      }
      // Fallback: any submit in login tab
      const submit = document.querySelector('#tab-login button[type="submit"], #tab-login .btn');
      if (submit) { submit.click(); return submit.textContent.trim().slice(0, 60); }
      // Try modal submit
      const modal = document.querySelector('.modal.show button:not([class*="close"])');
      if (modal) { modal.click(); return modal.textContent.trim().slice(0, 60); }
      return null;
    });

    if (loginBtn) {
      console.log(`  Clicked: "${loginBtn}"`);
      await page.waitForTimeout(3000);
      await ss(page, '12-login-result');

      const afterLogin = await page.evaluate(() => document.body?.innerText?.slice(0, 800) || '');
      if (afterLogin.includes('кабинет') || afterLogin.includes('выйти') || afterLogin.includes('профил')) {
        console.log('  ✅ Login successful - cabinet/logout visible');
        steps.push({ step: 'login', status: 'PASS' });
      } else if (afterLogin.includes('неверн') || afterLogin.includes('ошибк') || afterLogin.includes('не найден')) {
        console.log('  ⚠️ Login failed (wrong credentials - registration may not have completed)');
        steps.push({ step: 'login', status: 'PARTIAL', note: 'wrong credentials' });
      } else {
        console.log(`  Result: ${afterLogin.slice(0, 200)}`);
        steps.push({ step: 'login', status: 'DONE', note: 'submitted' });
      }
    } else {
      console.log('  ⚠️ No login button');
      steps.push({ step: 'login', status: 'SKIP', note: 'no button' });
    }
  } catch (err) {
    console.log(`  ❌ ${err.message.slice(0, 120)}`);
    steps.push({ step: 'login', status: 'FAIL', error: err.message.slice(0, 80) });
  }

  // ─── STEP 5: Personal Cabinet ─────────────────────────────
  console.log('\n📍 Step 5: Personal Cabinet');
  try {
    // Try clicking "Войти в кабинет" link
    const cabinetResult = await page.evaluate(() => {
      const links = document.querySelectorAll('a, button');
      for (const l of links) {
        const text = (l.textContent || '').trim().toLowerCase();
        if (text.includes('войти в кабинет') || text.includes('личный кабинет') || text.includes('мой кабинет') || text.includes('мои запис')) {
          l.click();
          return text;
        }
      }
      return null;
    });

    if (cabinetResult) {
      console.log(`  ✅ Clicked: "${cabinetResult}"`);
      await page.waitForTimeout(3000);
      await ss(page, '13-cabinet');

      const cabinetText = await page.evaluate(() => document.body?.innerText?.slice(0, 1500) || '');
      console.log(`  Cabinet preview: ${cabinetText.slice(0, 200)}`);

      // Look for appointments
      const appointments = await page.evaluate(() => {
        const appts = document.querySelectorAll('[class*="appointment"], [class*="booking"], [class*="record"], [class*="history"] li');
        return Array.from(appts).slice(0, 5).map(a => (a.textContent || '').trim().slice(0, 100));
      });
      if (appointments.length > 0) {
        console.log(`  Found ${appointments.length} appointments:`);
        appointments.forEach(a => console.log(`    → ${a}`));
      }
      steps.push({ step: 'cabinet', status: 'PASS', appointments: appointments.length });
    } else {
      console.log('  ⚠️ No cabinet link found');
      steps.push({ step: 'cabinet', status: 'SKIP', note: 'no cabinet link' });
    }
  } catch (err) {
    console.log(`  ❌ ${err.message.slice(0, 120)}`);
    steps.push({ step: 'cabinet', status: 'FAIL', error: err.message.slice(0, 80) });
  }

  await browser.close();

  // ─── Report ──────────────────────────────────────────────
  const report = {
    timestamp: new Date().toISOString(),
    targetUrl: BASE_URL,
    testEmail: TEST_EMAIL,
    steps,
    summary: {
      total: steps.length,
      passed: steps.filter(s => s.status === 'PASS' || s.status === 'DONE').length,
      partial: steps.filter(s => s.status === 'PARTIAL').length,
      failed: steps.filter(s => s.status === 'FAIL').length,
      skipped: steps.filter(s => s.status === 'SKIP').length,
    },
  };

  const rp = path.join(__dirname, '..', 'reports', 'e2e-booking-report.json');
  ensureDir(path.dirname(rp));
  fs.writeFileSync(rp, JSON.stringify(report, null, 2));

  console.log('\n═══════════════════════════════════════════════════');
  console.log('  📊 RESULTS');
  console.log('  ─────────────────────────────────────────────────');
  steps.forEach(s => {
    const icon = s.status === 'PASS' ? '✅' : s.status === 'DONE' ? '✔️' : s.status === 'PARTIAL' ? '⚠️' : s.status === 'SKIP' ? '⏭️' : '❌';
    console.log(`  ${icon} ${s.step}: ${s.status}${s.note ? ' (' + s.note + ')' : ''}${s.error ? ' - ' + s.error : ''}`);
  });
  console.log(`  📄 Report: ${rp}`);
  console.log('═══════════════════════════════════════════════════\n');

  // ─── Gitea ───────────────────────────────────────────────
  if (GITEA_ISSUE) {
    try {
      const body = [
        '## 🧪 E2E Booking Flow: irina-vik.ru',
        '',
        `**Test email**: \`${TEST_EMAIL}\``,
        '',
        '| Step | Status | Details |',
        '|------|--------|---------|',
        ...steps.map(s => {
          const icon = s.status === 'PASS' ? '✅' : s.status === 'DONE' ? '✔️' : s.status === 'PARTIAL' ? '⚠️' : s.status === 'SKIP' ? '⏭️' : '❌';
          return `| ${s.step} | ${icon} ${s.status} | ${s.note || s.error || s.service || ''} |`;
        }),
      ].join('\n');

      const screens = fs.readdirSync(SCREENSHOT_DIR).filter(f => f.endsWith('.png')).map(f => path.join(SCREENSHOT_DIR, f));
      if (screens.length > 0) {
        await gitea.uploadAndComment(GITEA_ISSUE, screens, body);
        console.log(`  ✅ Posted ${screens.length} screenshots to Gitea #${GITEA_ISSUE}`);
      } else {
        await gitea.postComment(GITEA_ISSUE, body);
        console.log(`  ✅ Posted comment to Gitea #${GITEA_ISSUE}`);
      }
    } catch (err) {
      console.error(`  ❌ Gitea: ${err.message}`);
    }
  }
}

main().catch(err => { console.error('Fatal:', err); process.exit(1); });