---
---

<div id="consent-preferences-modal" class="fixed inset-0 z-50 hidden">
  <div class="fixed inset-0 bg-black/50 transition-opacity" id="consent-modal-backdrop"></div>
  <div class="fixed inset-0 flex items-center justify-center p-4">
    <div class="relative bg-white rounded-xl shadow-2xl w-full max-w-lg max-h-[90vh] overflow-y-auto">
      <div class="p-6">
        <h2 class="text-xl font-semibold text-gray-900 mb-2">ตั้งค่าคุกกี้</h2>
        <p class="text-sm text-gray-600 mb-6">
          คุณสามารถปรับแต่งการตั้งค่าคุกกี้ได้ตามต้องการ
        </p>

        <div class="space-y-5">
          <div class="flex items-center justify-between p-4 bg-gray-50 rounded-lg">
            <div>
              <span class="font-medium text-gray-900">จำเป็น (เปิดเสมอ)</span>
              <p class="text-xs text-gray-500 mt-0.5">คุกกี้ที่จำเป็นสำหรับการทำงานของเว็บไซต์</p>
            </div>
            <label class="relative inline-flex items-center cursor-not-allowed">
              <input type="checkbox" checked disabled class="sr-only peer" />
              <div class="w-11 h-6 bg-gray-200 peer-focus:outline-none peer-focus:ring-2 peer-focus:ring-green-500 rounded-full peer peer-checked:after:translate-x-full peer-checked:after:border-white after:content-[''] after:absolute after:top-[2px] after:left-[2px] after:bg-white after:border-gray-300 after:border after:rounded-full after:h-5 after:w-5 after:transition-all peer-checked:bg-green-600"></div>
            </label>
          </div>

          <div class="flex items-center justify-between p-4 bg-gray-50 rounded-lg">
            <div>
              <span class="font-medium text-gray-900">วิเคราะห์การใช้งาน</span>
              <p class="text-xs text-gray-500 mt-0.5">ช่วยให้เราเข้าใจว่าผู้ใช้งานใช้เว็บไซต์อย่างไร</p>
            </div>
            <label class="relative inline-flex items-center cursor-pointer">
              <input type="checkbox" id="consent-analytics" class="sr-only peer" />
              <div class="w-11 h-6 bg-gray-200 peer-focus:outline-none peer-focus:ring-2 peer-focus:ring-green-500 rounded-full peer peer-checked:after:translate-x-full peer-checked:after:border-white after:content-[''] after:absolute after:top-[2px] after:left-[2px] after:bg-white after:border-gray-300 after:border after:rounded-full after:h-5 after:w-5 after:transition-all peer-checked:bg-green-600"></div>
            </label>
          </div>

          <div class="flex items-center justify-between p-4 bg-gray-50 rounded-lg">
            <div>
              <span class="font-medium text-gray-900">การตลาด</span>
              <p class="text-xs text-gray-500 mt-0.5">ใช้สำหรับการตลาดและโฆษณา</p>
            </div>
            <label class="relative inline-flex items-center cursor-pointer">
              <input type="checkbox" id="consent-marketing" class="sr-only peer" />
              <div class="w-11 h-6 bg-gray-200 peer-focus:outline-none peer-focus:ring-2 peer-focus:ring-green-500 rounded-full peer peer-checked:after:translate-x-full peer-checked:after:border-white after:content-[''] after:absolute after:top-[2px] after:left-[2px] after:bg-white after:border-gray-300 after:border after:rounded-full after:h-5 after:w-5 after:transition-all peer-checked:bg-green-600"></div>
            </label>
          </div>
        </div>

        <div class="mt-6 flex flex-col sm:flex-row gap-3">
          <button
            id="consent-save"
            class="flex-1 px-5 py-2.5 text-sm font-medium text-white bg-green-600 rounded-lg hover:bg-green-700 transition-colors focus:outline-none focus:ring-2 focus:ring-green-500"
          >
            บันทึกการตั้งค่า
          </button>
          <button
            id="consent-close"
            class="px-5 py-2.5 text-sm font-medium text-gray-700 bg-gray-100 rounded-lg hover:bg-gray-200 transition-colors focus:outline-none focus:ring-2 focus:ring-gray-400"
          >
            ยกเลิก
          </button>
        </div>
      </div>
    </div>
  </div>
</div>

<script>
  const POLICY_VERSION = '1.0';
  const STORAGE_KEY = 'dealplustech_consent';
  
  function generateSessionId(): string {
    return 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, (c) => {
      const r = Math.random() * 16 | 0;
      const v = c === 'x' ? r : (r & 0x3 | 0x8);
      return v.toString(16);
    });
  }

  function getSessionId(): string {
    let sessionId = localStorage.getItem('dealplustech_session');
    if (!sessionId) {
      sessionId = generateSessionId();
      localStorage.setItem('dealplustech_session', sessionId);
    }
    return sessionId;
  }

  function getConsent(): { essential: boolean; analytics: boolean; marketing: boolean } | null {
    const stored = localStorage.getItem(STORAGE_KEY);
    if (stored) {
      try {
        return JSON.parse(stored);
      } catch {
        return null;
      }
    }
    return null;
  }

  function saveConsent(consent: { essential: boolean; analytics: boolean; marketing: boolean }) {
    localStorage.setItem(STORAGE_KEY, JSON.stringify(consent));
  }

  function applyConsent(consent: { analytics: boolean; marketing: boolean }) {
    if (consent.analytics) {
      document.body.classList.add('analytics-enabled');
    } else {
      document.body.classList.remove('analytics-enabled');
    }
    if (consent.marketing) {
      document.body.classList.add('marketing-enabled');
    } else {
      document.body.classList.remove('marketing-enabled');
    }
    
    window.dispatchEvent(new CustomEvent('consent-updated', { detail: consent }));
  }

  async function logConsent(consent: { essential: boolean; analytics: boolean; marketing: boolean }) {
    try {
      await fetch('/api/consent', {
        method: 'POST',
        headers: { 'Content-Type': 'application/json' },
        body: JSON.stringify({
          sessionId: getSessionId(),
          essential: consent.essential,
          analytics: consent.analytics,
          marketing: consent.marketing,
          policyVersion: POLICY_VERSION,
        }),
      });
    } catch (error) {
      console.error('Failed to log consent:', error);
    }
  }

  function openModal() {
    const modal = document.getElementById('consent-preferences-modal');
    const analyticsCheckbox = document.getElementById('consent-analytics') as HTMLInputElement;
    const marketingCheckbox = document.getElementById('consent-marketing') as HTMLInputElement;
    
    const existingConsent = getConsent();
    if (existingConsent) {
      analyticsCheckbox.checked = existingConsent.analytics;
      marketingCheckbox.checked = existingConsent.marketing;
    } else {
      analyticsCheckbox.checked = false;
      marketingCheckbox.checked = false;
    }
    
    modal?.classList.remove('hidden');
  }

  function closeModal() {
    const modal = document.getElementById('consent-preferences-modal');
    modal?.classList.add('hidden');
  }

  async function handleSave() {
    const analyticsCheckbox = document.getElementById('consent-analytics') as HTMLInputElement;
    const marketingCheckbox = document.getElementById('consent-marketing') as HTMLInputElement;
    
    const consent = {
      essential: true,
      analytics: analyticsCheckbox.checked,
      marketing: marketingCheckbox.checked,
    };
    
    saveConsent(consent);
    await logConsent(consent);
    applyConsent(consent);
    closeModal();
  }

  document.addEventListener('DOMContentLoaded', () => {
    const modal = document.getElementById('consent-preferences-modal');
    const backdrop = document.getElementById('consent-modal-backdrop');
    const saveBtn = document.getElementById('consent-save');
    const closeBtn = document.getElementById('consent-close');

    window.addEventListener('open-consent-preferences', openModal);
    
    backdrop?.addEventListener('click', closeModal);
    closeBtn?.addEventListener('click', closeModal);
    saveBtn?.addEventListener('click', handleSave);
  });
</script>