<?php
require_once '../includes/auth.php';
require_once '../includes/language_manager.php';

$auth = new Auth();
$auth->requireLogin();

$current_language = getCurrentLanguage();
$available_languages = LanguageManager::getInstance()->getAvailableLanguages();
?>
<!DOCTYPE html>
<html lang="<?php echo $current_language; ?>">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>多語言功能測試 - 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;
        }
        
        .language-selector {
            display: flex;
            align-items: center;
            gap: 15px;
            margin-bottom: 20px;
            padding: 15px;
            background: white;
            border-radius: 8px;
            border: 1px solid #e0e0e0;
        }
        
        .language-selector i {
            color: #667eea;
            font-size: 1.2rem;
        }
        
        .language-selector select {
            padding: 8px 12px;
            border: 1px solid #e0e0e0;
            border-radius: 6px;
            background: white;
            font-size: 1rem;
            color: #333;
        }
        
        .language-selector select:focus {
            outline: none;
            border-color: #667eea;
        }
        
        .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;
        }
    </style>
</head>
<body>
    <div class="container">
        <div class="header">
            <h1><i class="fas fa-globe"></i> 多語言功能測試</h1>
            <p>測試內容管理頁面的多語言支持</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">
                ✅ 語言管理系統已實現
            </div>
            <div class="status success">
                ✅ 繁體中文語言包已載入
            </div>
            <div class="status success">
                ✅ 英文語言包已載入
            </div>
            <div class="status success">
                ✅ 語言切換API已實現
            </div>
            <div class="status success">
                ✅ 內容管理頁面已支持多語言
            </div>
        </div>
        
        <div class="test-section">
            <h3><i class="fas fa-language"></i> 語言切換測試</h3>
            <div class="language-selector">
                <i class="fas fa-globe"></i>
                <span>當前語言:</span>
                <strong><?php echo $available_languages[$current_language]; ?></strong>
                <span>|</span>
                <span>切換語言:</span>
                <select id="languageSelect" onchange="changeLanguage(this.value)">
                    <?php foreach ($available_languages as $code => $name): ?>
                        <option value="<?php echo $code; ?>" <?php echo $current_language === $code ? 'selected' : ''; ?>>
                            <?php echo $name; ?>
                        </option>
                    <?php endforeach; ?>
                </select>
            </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>頁面標題</h4>
                    <p><?php echo t('page_title'); ?></p>
                </div>
                <div class="translation-item">
                    <h4>內容管理</h4>
                    <p><?php echo t('content_management'); ?></p>
                </div>
                <div class="translation-item">
                    <h4>建立計畫</h4>
                    <p><?php echo t('create_plan'); ?></p>
                </div>
                <div class="translation-item">
                    <h4>新增文章</h4>
                    <p><?php echo t('add_article'); ?></p>
                </div>
                <div class="translation-item">
                    <h4>生成標題</h4>
                    <p><?php echo t('generate_title'); ?></p>
                </div>
                <div class="translation-item">
                    <h4>生成內容</h4>
                    <p><?php echo t('generate_content'); ?></p>
                </div>
                <div class="translation-item">
                    <h4>SEO優化</h4>
                    <p><?php echo t('seo_optimize'); ?></p>
                </div>
                <div class="translation-item">
                    <h4>狀態 - 進行中</h4>
                    <p><?php echo t('status_active'); ?></p>
                </div>
                <div class="translation-item">
                    <h4>狀態 - 暫停</h4>
                    <p><?php echo t('status_paused'); ?></p>
                </div>
                <div class="translation-item">
                    <h4>狀態 - 已完成</h4>
                    <p><?php echo t('status_completed'); ?></p>
                </div>
                <div class="translation-item">
                    <h4>取消</h4>
                    <p><?php echo t('cancel'); ?></p>
                </div>
                <div class="translation-item">
                    <h4>儲存</h4>
                    <p><?php echo t('btn_save'); ?></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-success" onclick="testContentManagement()">
                <i class="fas fa-edit"></i>
                測試內容管理頁面
            </button>
            
            <button class="btn btn-info" onclick="testLanguageSwitch()">
                <i class="fas fa-exchange-alt"></i>
                測試語言切換
            </button>
            
            <div id="testResult" style="margin-top: 15px; padding: 15px; background: #f8f9fa; border-radius: 8px; display: none;"></div>
        </div>
        
        <div class="test-section">
            <h3><i class="fas fa-link"></i> 測試連結</h3>
            <a href="content.php" class="btn btn-primary">
                <i class="fas fa-external-link-alt"></i>
                內容管理頁面 (多語言版)
            </a>
            <a href="content_original.php" class="btn btn-primary">
                <i class="fas fa-external-link-alt"></i>
                內容管理頁面 (原版)
            </a>
            <a href="dashboard.php" class="btn btn-primary">
                <i class="fas fa-tachometer-alt"></i>
                返回儀表板
            </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>語言管理系統</strong>：完整的語言管理器類</li>
                <li><strong>語言包</strong>：繁體中文和英文語言包</li>
                <li><strong>語言切換</strong>：即時語言切換功能</li>
                <li><strong>API支持</strong>：語言切換API端點</li>
                <li><strong>會話管理</strong>：語言偏好保存在會話中</li>
                <li><strong>翻譯函數</strong>：簡單的t()函數進行翻譯</li>
            </ul>
            
            <p><strong>支持的語言：</strong></p>
            <ul>
                <li>繁體中文 (zh-TW)</li>
                <li>English (en-US)</li>
            </ul>
            
            <p><strong>使用方法：</strong></p>
            <ul>
                <li>在側邊欄選擇語言</li>
                <li>頁面會自動重新載入並切換語言</li>
                <li>語言偏好會保存在會話中</li>
                <li>所有文本都會自動翻譯</li>
            </ul>
        </div>
    </div>
    
    <script>
        function changeLanguage(language) {
            fetch('/api/language.php', {
                method: 'POST',
                headers: {
                    'Content-Type': 'application/json',
                },
                credentials: 'same-origin',
                body: JSON.stringify({
                    language: language
                })
            })
            .then(response => response.json())
            .then(result => {
                if (result.success) {
                    showTestResult('語言切換成功！頁面將重新載入...');
                    setTimeout(() => {
                        location.reload();
                    }, 1000);
                } else {
                    showTestResult('語言切換失敗: ' + result.message, 'error');
                }
            })
            .catch(error => {
                console.error('Error:', error);
                showTestResult('網路錯誤: ' + error.message, 'error');
            });
        }
        
        function testLanguageAPI() {
            fetch('/api/language.php', {
                method: 'GET',
                credentials: 'same-origin'
            })
            .then(response => response.json())
            .then(result => {
                if (result.success) {
                    showTestResult('語言API測試成功！<br>當前語言: ' + result.current_language + '<br>可用語言: ' + JSON.stringify(result.available_languages));
                } 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 testContentManagement() {
            showTestResult('正在打開內容管理頁面...');
            window.open('content.php', '_blank');
        }
        
        function testLanguageSwitch() {
            const currentLang = '<?php echo $current_language; ?>';
            const newLang = currentLang === 'zh-TW' ? 'en-US' : 'zh-TW';
            showTestResult('正在切換到 ' + (newLang === 'zh-TW' ? '繁體中文' : 'English') + '...');
            changeLanguage(newLang);
        }
        
        function showTestResult(message, type = 'success') {
            const resultDiv = document.getElementById('testResult');
            resultDiv.style.display = 'block';
            resultDiv.innerHTML = `<strong>測試結果：</strong> ${message}`;
            
            if (type === 'error') {
                resultDiv.style.backgroundColor = '#f8d7da';
                resultDiv.style.border = '1px solid #f5c6cb';
                resultDiv.style.color = '#721c24';
            } else {
                resultDiv.style.backgroundColor = '#d4edda';
                resultDiv.style.border = '1px solid #c3e6cb';
                resultDiv.style.color = '#155724';
            }
        }
    </script>
</body>
</html>
