<?php
require_once 'includes/i18n.php';

$i18n = I18n::getInstance();
$current_lang = $i18n->getCurrentLanguage();
$available_languages = $i18n->getAvailableLanguages();
?>
<!DOCTYPE html>
<html lang="<?php echo $current_lang; ?>">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>多語言系統測試 - SEO AI 自動化系統</title>
    <link href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.0.0/css/all.min.css" rel="stylesheet">
    <style>
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            margin: 0;
            padding: 20px;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            min-height: 100vh;
        }
        
        .container {
            max-width: 1200px;
            margin: 0 auto;
            background: white;
            border-radius: 15px;
            padding: 30px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
        }
        
        .header {
            text-align: center;
            margin-bottom: 30px;
        }
        
        .header h1 {
            color: #333;
            margin: 0;
            font-size: 2.5rem;
        }
        
        .test-section {
            background: #f8f9fa;
            border: 2px solid #e9ecef;
            border-radius: 10px;
            padding: 20px;
            margin-bottom: 20px;
        }
        
        .test-section h3 {
            color: #333;
            margin: 0 0 15px 0;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        
        .btn {
            padding: 12px 24px;
            border: none;
            border-radius: 8px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            text-decoration: none;
            margin: 5px;
        }
        
        .btn-primary {
            background: linear-gradient(135deg, #667eea, #764ba2);
            color: white;
        }
        
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
        }
        
        .btn-success {
            background: #28a745;
            color: white;
        }
        
        .btn-success:hover {
            background: #218838;
        }
        
        .btn-info {
            background: #17a2b8;
            color: white;
        }
        
        .btn-info:hover {
            background: #138496;
        }
        
        .status {
            padding: 15px;
            border-radius: 8px;
            margin: 10px 0;
            font-weight: 600;
        }
        
        .status.success {
            background: #d4edda;
            color: #155724;
            border: 1px solid #c3e6cb;
        }
        
        .status.info {
            background: #d1ecf1;
            color: #0c5460;
            border: 1px solid #bee5eb;
        }
        
        .status.warning {
            background: #fff3cd;
            color: #856404;
            border: 1px solid #ffeaa7;
        }
        
        .language-info {
            background: white;
            border: 1px solid #e0e0e0;
            border-radius: 8px;
            padding: 15px;
            margin-bottom: 20px;
        }
        
        .language-info h4 {
            margin: 0 0 10px 0;
            color: #333;
        }
        
        .language-info p {
            margin: 5px 0;
            color: #666;
        }
        
        .translation-demo {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 20px;
            margin-top: 20px;
        }
        
        .translation-item {
            background: white;
            border: 1px solid #e0e0e0;
            border-radius: 8px;
            padding: 15px;
        }
        
        .translation-item h4 {
            margin: 0 0 10px 0;
            color: #333;
            font-size: 0.9rem;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }
        
        .translation-item p {
            margin: 0;
            color: #666;
            font-size: 1rem;
        }
        
        .language-switcher {
            position: fixed;
            top: 20px;
            right: 20px;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            border-radius: 25px;
            padding: 8px 15px;
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
            border: 1px solid rgba(102, 126, 234, 0.2);
        }
        
        .language-switcher select {
            border: none;
            background: transparent;
            font-size: 14px;
            color: #333;
            cursor: pointer;
            outline: none;
        }
        
        .test-result {
            margin-top: 15px;
            padding: 15px;
            background: #f8f9fa;
            border-radius: 8px;
            display: none;
        }
        
        .test-result.show {
            display: block;
        }
        
        .test-result.success {
            background: #d4edda;
            border: 1px solid #c3e6cb;
            color: #155724;
        }
        
        .test-result.error {
            background: #f8d7da;
            border: 1px solid #f5c6cb;
            color: #721c24;
        }
    </style>
</head>
<body>
    <!-- Language Switcher -->
    <div class="language-switcher">
        <select onchange="changeLanguage(this.value)">
            <?php foreach ($available_languages as $code => $info): ?>
                <option value="<?php echo $code; ?>" <?php echo $code === $current_lang ? 'selected' : ''; ?>>
                    <?php echo $info['native_name']; ?>
                </option>
            <?php endforeach; ?>
        </select>
    </div>
    
    <div class="container">
        <div class="header">
            <h1><i class="fas fa-globe"></i> 多語言系統測試</h1>
            <p>測試完整的國際化（i18n）功能</p>
        </div>
        
        <div class="language-info">
            <h4><i class="fas fa-info-circle"></i> 當前語言狀態</h4>
            <p><strong>當前語言:</strong> <?php echo $available_languages[$current_lang]['native_name']; ?></p>
            <p><strong>語言代碼:</strong> <?php echo $current_lang; ?></p>
            <p><strong>語言方向:</strong> <?php echo $available_languages[$current_lang]['direction']; ?></p>
            <p><strong>日期格式:</strong> <?php echo $available_languages[$current_lang]['date_format']; ?></p>
            <p><strong>時間格式:</strong> <?php echo $available_languages[$current_lang]['time_format']; ?></p>
            <p><strong>貨幣:</strong> <?php echo $available_languages[$current_lang]['currency']; ?></p>
        </div>
        
        <div class="test-section">
            <h3><i class="fas fa-check-circle"></i> 多語言功能狀態</h3>
            <div class="status success">
                ✅ 國際化系統已實現
            </div>
            <div class="status success">
                ✅ 語言檢測和切換功能
            </div>
            <div class="status success">
                ✅ 翻譯函數正常工作
            </div>
            <div class="status success">
                ✅ 日期和時間格式化
            </div>
            <div class="status success">
                ✅ 貨幣格式化
            </div>
            <div class="status success">
                ✅ 瀏覽器語言檢測
            </div>
        </div>
        
        <div class="test-section">
            <h3><i class="fas fa-list"></i> 翻譯示例</h3>
            <div class="translation-demo">
                <div class="translation-item">
                    <h4>網站標題</h4>
                    <p><?php echo __('site_title'); ?></p>
                </div>
                <div class="translation-item">
                    <h4>導航 - 首頁</h4>
                    <p><?php echo __('nav_home'); ?></p>
                </div>
                <div class="translation-item">
                    <h4>導航 - 功能特色</h4>
                    <p><?php echo __('nav_features'); ?></p>
                </div>
                <div class="translation-item">
                    <h4>導航 - 服務項目</h4>
                    <p><?php echo __('nav_services'); ?></p>
                </div>
                <div class="translation-item">
                    <h4>導航 - 方案價格</h4>
                    <p><?php echo __('nav_pricing'); ?></p>
                </div>
                <div class="translation-item">
                    <h4>導航 - 聯絡我們</h4>
                    <p><?php echo __('nav_contact'); ?></p>
                </div>
                <div class="translation-item">
                    <h4>英雄區標題</h4>
                    <p><?php echo __('hero_title'); ?></p>
                </div>
                <div class="translation-item">
                    <h4>英雄區副標題</h4>
                    <p><?php echo __('hero_subtitle'); ?></p>
                </div>
                <div class="translation-item">
                    <h4>功能特色標題</h4>
                    <p><?php echo __('features_title'); ?></p>
                </div>
                <div class="translation-item">
                    <h4>服務項目標題</h4>
                    <p><?php echo __('services_title'); ?></p>
                </div>
                <div class="translation-item">
                    <h4>方案價格標題</h4>
                    <p><?php echo __('pricing_title'); ?></p>
                </div>
                <div class="translation-item">
                    <h4>聯絡我們標題</h4>
                    <p><?php echo __('contact_title'); ?></p>
                </div>
            </div>
        </div>
        
        <div class="test-section">
            <h3><i class="fas fa-cog"></i> 功能測試</h3>
            <p>測試以下功能：</p>
            
            <button class="btn btn-primary" onclick="testLanguageAPI()">
                <i class="fas fa-code"></i>
                測試語言API
            </button>
            
            <button class="btn btn-info" onclick="testLanguageSwitch()">
                <i class="fas fa-exchange-alt"></i>
                測試語言切換
            </button>
            
            <button class="btn btn-success" onclick="testTranslations()">
                <i class="fas fa-language"></i>
                測試翻譯功能
            </button>
            
            <button class="btn btn-primary" onclick="testFrontend()">
                <i class="fas fa-external-link-alt"></i>
                測試前端網站
            </button>
            
            <div id="testResult" class="test-result"></div>
        </div>
        
        <div class="test-section">
            <h3><i class="fas fa-link"></i> 測試連結</h3>
            <a href="index_multilang.php" class="btn btn-primary" target="_blank">
                <i class="fas fa-external-link-alt"></i>
                多語言前端網站
            </a>
            <a href="admin/test_all_pages_multilang.php" class="btn btn-primary" target="_blank">
                <i class="fas fa-external-link-alt"></i>
                管理後台多語言測試
            </a>
            <a href="admin/dashboard.php" class="btn btn-primary" target="_blank">
                <i class="fas fa-tachometer-alt"></i>
                管理後台儀表板
            </a>
        </div>
        
        <div class="test-section">
            <h3><i class="fas fa-info-circle"></i> 多語言功能說明</h3>
            <p><strong>已實現的功能：</strong></p>
            <ul>
                <li><strong>語言檢測</strong>：自動檢測瀏覽器語言、會話語言、Cookie語言</li>
                <li><strong>語言切換</strong>：即時語言切換功能</li>
                <li><strong>翻譯系統</strong>：完整的翻譯函數和語言包</li>
                <li><strong>格式化功能</strong>：日期、時間、貨幣格式化</li>
                <li><strong>API支持</strong>：完整的RESTful API</li>
                <li><strong>會話管理</strong>：語言偏好持久化</li>
            </ul>
            
            <p><strong>支持的語言：</strong></p>
            <ul>
                <li>繁體中文 (zh-TW) - 預設語言</li>
                <li>English (en-US) - 英文版本</li>
                <li>简体中文 (zh-CN) - 簡體中文版本</li>
                <li>日本語 (ja-JP) - 日文版本</li>
            </ul>
            
            <p><strong>使用方法：</strong></p>
            <ul>
                <li>使用 <code>__('key')</code> 函數進行翻譯</li>
                <li>使用 <code>formatDate()</code> 格式化日期</li>
                <li>使用 <code>formatTime()</code> 格式化時間</li>
                <li>使用 <code>formatCurrency()</code> 格式化貨幣</li>
                <li>使用 <code>getCurrentLanguage()</code> 獲取當前語言</li>
            </ul>
        </div>
    </div>
    
    <script>
        function changeLanguage(language) {
            // Update URL with language parameter
            const url = new URL(window.location);
            url.searchParams.set("lang", language);
            
            // Redirect to new URL
            window.location.href = url.toString();
        }
        
        function testLanguageAPI() {
            fetch('/api/i18n.php?action=languages', {
                method: 'GET',
                credentials: 'same-origin'
            })
            .then(response => response.json())
            .then(result => {
                if (result.success) {
                    showTestResult('語言API測試成功！<br>可用語言: ' + Object.keys(result.data).join(', '));
                } else {
                    showTestResult('語言API測試失敗: ' + result.message, 'error');
                }
            })
            .catch(error => {
                console.error('Error:', error);
                showTestResult('API測試失敗: ' + error.message, 'error');
            });
        }
        
        function testLanguageSwitch() {
            const currentLang = '<?php echo $current_lang; ?>';
            const languages = ['zh-TW', 'en-US', 'zh-CN', 'ja-JP'];
            const nextLang = languages[(languages.indexOf(currentLang) + 1) % languages.length];
            showTestResult('正在切換到 ' + nextLang + '...');
            changeLanguage(nextLang);
        }
        
        function testTranslations() {
            const testKeys = ['site_title', 'nav_home', 'hero_title', 'features_title'];
            const keysParam = testKeys.join(',');
            
            fetch('/api/i18n.php?action=translations&keys=' + keysParam, {
                method: 'GET',
                credentials: 'same-origin'
            })
            .then(response => response.json())
            .then(result => {
                if (result.success) {
                    let translations = '';
                    for (const [key, value] of Object.entries(result.data)) {
                        translations += key + ': ' + value + '<br>';
                    }
                    showTestResult('翻譯功能測試成功！<br>' + translations);
                } else {
                    showTestResult('翻譯功能測試失敗: ' + result.message, 'error');
                }
            })
            .catch(error => {
                console.error('Error:', error);
                showTestResult('翻譯測試失敗: ' + error.message, 'error');
            });
        }
        
        function testFrontend() {
            showTestResult('正在打開多語言前端網站...');
            window.open('index_multilang.php', '_blank');
        }
        
        function showTestResult(message, type = 'success') {
            const resultDiv = document.getElementById('testResult');
            resultDiv.className = `test-result show ${type}`;
            resultDiv.innerHTML = `<strong>測試結果：</strong> ${message}`;
        }
    </script>
</body>
</html>
