(function () {
    'use strict';

    // ── Yapılandırma ──────────────────────────────────────────────
    var CHAT_URL   = 'https://orzaxai.orzaxclub.com.tr';
    var BRAND_COLOR = '#39B54A';
    var Z_BASE      = 2147483640;
    // ──────────────────────────────────────────────────────────────

    if (document.getElementById('orzax-widget-root')) return; // Tekrar yüklemeyi önle

    // ── CSS ───────────────────────────────────────────────────────
    var css = [
        '#orzax-widget-root {',
        '  position: fixed;',
        '  bottom: 24px;',
        '  right: 24px;',
        '  z-index: ' + Z_BASE + ';',
        '  font-family: "Inter", "Segoe UI", system-ui, sans-serif;',
        '}',

        /* Açık/kapalı butonu */
        '#orzax-toggle {',
        '  height: 56px;',
        '  border-radius: 28px;',
        '  padding: 0 18px 0 14px;',
        '  gap: 10px;',
        '  background: ' + BRAND_COLOR + ';',
        '  border: none;',
        '  cursor: pointer;',
        '  display: flex; align-items: center; justify-content: center;',
        '  box-shadow: 0 4px 20px rgba(57,181,74,0.45);',
        '  transition: transform .2s, box-shadow .2s, border-radius .3s, padding .3s;',
        '  position: relative;',
        '  white-space: nowrap;',
        '}',
        '#orzax-toggle:hover { transform: scale(1.05); box-shadow: 0 6px 28px rgba(57,181,74,0.55); }',
        '#orzax-toggle:active { transform: scale(0.96); }',

        /* İkon sarmalayıcı */
        '#orzax-icon-wrap {',
        '  position: relative;',
        '  width: 26px; height: 26px;',
        '  flex-shrink: 0;',
        '  display: flex; align-items: center; justify-content: center;',
        '}',
        '#orzax-toggle svg { display: block; transition: opacity .2s, transform .2s; position: absolute; }',
        '#orzax-toggle .icon-chat  { opacity: 1; transform: rotate(0); }',
        '#orzax-toggle .icon-close { opacity: 0; transform: rotate(-90deg); }',
        '#orzax-widget-root.open #orzax-toggle .icon-chat  { opacity: 0; transform: rotate(90deg); }',
        '#orzax-widget-root.open #orzax-toggle .icon-close { opacity: 1; transform: rotate(0); }',

        /* Buton etiketi */
        '#orzax-toggle-label {',
        '  font-size: 14px; font-weight: 600;',
        '  color: #fff;',
        '  letter-spacing: 0.01em;',
        '  max-width: 140px;',
        '  overflow: hidden;',
        '  transition: max-width .3s ease, opacity .2s ease;',
        '}',

        /* Açık halde: daireye dön, etiketi gizle */
        '#orzax-widget-root.open #orzax-toggle {',
        '  border-radius: 50%;',
        '  padding: 0;',
        '  width: 56px;',
        '  gap: 0;',
        '}',
        '#orzax-widget-root.open #orzax-toggle-label {',
        '  max-width: 0;',
        '  opacity: 0;',
        '}',

        /* Bildirim noktası */
        '#orzax-badge {',
        '  position: absolute;',
        '  top: -2px; right: -2px;',
        '  width: 14px; height: 14px;',
        '  background: #e53935;',
        '  border: 2px solid white;',
        '  border-radius: 50%;',
        '  display: none;',
        '}',

        /* Chat penceresi */
        '#orzax-frame-wrap {',
        '  position: absolute;',
        '  bottom: 72px;',
        '  right: 0;',
        '  width: 400px;',
        '  height: 600px;',
        '  border-radius: 20px;',
        '  overflow: hidden;',
        '  box-shadow: 0 8px 40px rgba(0,0,0,0.18);',
        '  background: #fff;',
        '  opacity: 0;',
        '  transform: translateY(16px) scale(0.97);',
        '  pointer-events: none;',
        '  transition: opacity .25s ease, transform .25s ease;',
        '  transform-origin: bottom right;',
        '}',
        '#orzax-widget-root.open #orzax-frame-wrap {',
        '  opacity: 1;',
        '  transform: translateY(0) scale(1);',
        '  pointer-events: auto;',
        '}',
        '#orzax-chat-frame {',
        '  width: 100%; height: 100%;',
        '  border: none; display: block;',
        '}',

        /* Mobil */
        '@media (max-width: 480px) {',
        '  #orzax-frame-wrap {',
        '    width: calc(100vw - 20px);',
        '    height: 70vh;',
        '    right: -14px;',
        '    bottom: 70px;',
        '    border-radius: 16px;',
        '  }',
        '  #orzax-widget-root { bottom: 16px; right: 16px; }',
        '}',
    ].join('\n');

    var styleEl = document.createElement('style');
    styleEl.textContent = css;
    document.head.appendChild(styleEl);

    // ── HTML ──────────────────────────────────────────────────────
    var root = document.createElement('div');
    root.id  = 'orzax-widget-root';
    root.innerHTML = [
        '<div id="orzax-frame-wrap">',
        '  <iframe id="orzax-chat-frame"',
        '    src="about:blank"',
        '    title="Orzax Ürün Asistanı"',
        '    allow="clipboard-write"',
        '    loading="lazy">',
        '  </iframe>',
        '</div>',
        '<button id="orzax-toggle" aria-label="Orzax Asistan">',
        '  <span id="orzax-badge"></span>',
        '  <span id="orzax-icon-wrap">',

        /* Chat icon */
        '    <svg class="icon-chat" width="26" height="26" viewBox="0 0 24 24" fill="white">',
        '      <path d="M20 2H4a2 2 0 0 0-2 2v18l4-4h14a2 2 0 0 0 2-2V4a2 2 0 0 0-2-2z"/>',
        '    </svg>',

        /* Close icon */
        '    <svg class="icon-close" width="22" height="22" viewBox="0 0 24 24" fill="none" stroke="white" stroke-width="2.5" stroke-linecap="round">',
        '      <line x1="18" y1="6" x2="6" y2="18"/><line x1="6" y1="6" x2="18" y2="18"/>',
        '    </svg>',

        '  </span>',
        '  <span id="orzax-toggle-label">ZAX\'I Başlat</span>',
        '</button>',
    ].join('');
    document.body.appendChild(root);

    // ── Mantık ───────────────────────────────────────────────────
    var toggle = document.getElementById('orzax-toggle');
    var frame  = document.getElementById('orzax-chat-frame');
    var isOpen    = false;
    var loaded    = false;

    function open() {
        if (!loaded) {
            frame.src = CHAT_URL; // İlk açılışta yükle (lazy)
            loaded = true;
        }
        root.classList.add('open');
        isOpen = true;
        document.getElementById('orzax-badge').style.display = 'none';
        toggle.setAttribute('aria-expanded', 'true');
    }

    function close() {
        root.classList.remove('open');
        isOpen = false;
        toggle.setAttribute('aria-expanded', 'false');
        // Pencere kapanınca iframe sıfırla — bir sonraki açılışta yeni session başlar
        frame.src = 'about:blank';
        loaded = false;
    }

    toggle.addEventListener('click', function () {
        isOpen ? close() : open();
    });

    // ESC tuşuyla kapat
    document.addEventListener('keydown', function (e) {
        if (e.key === 'Escape' && isOpen) close();
    });

    // iframe'den gelen kapat sinyali (KVKK reddet)
    window.addEventListener('message', function (e) {
        if (e.data === 'orzax-widget-close') close();
    });

    // Dışarı tıklayınca kapat (opsiyonel — istenirse kaldırılabilir)
    document.addEventListener('click', function (e) {
        if (isOpen && !root.contains(e.target)) close();
    });

    // Bildirim noktasını dışarıdan göstermek için global API
    window.OrzaxWidget = {
        open:  open,
        close: close,
        showBadge: function () {
            document.getElementById('orzax-badge').style.display = 'block';
        },
    };

})();