svalavuo
/
website


			
				
					
						
						
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							<?php
// Start session for language preference
if (session_status() === PHP_SESSION_NONE) {
    session_start();
}

require_once '../includes/config.php';
require_once '../includes/database.php';
require_once '../includes/publication.php';
require_once '../includes/translation.php';

// Translation system is auto-initialized when translation.php is included

$publication = new Publication();

$category = $_GET['category'] ?? '';
$page = max(1, (int)($_GET['page'] ?? 1));
$limit = 10;
$offset = ($page - 1) * $limit;

// Get categories for sidebar
$categories = $publication->getCategories();

// Get publications for selected category or all categories
if ($category) {
    $publications = $publication->getByCategory($category, 'published');
    $totalPublications = count($publications);
    // Apply pagination
    $publications = array_slice($publications, $offset, $limit);
    $currentCategory = $category;
} else {
    // Show all publications when no specific category is selected
    $publications = $publication->getAll('published', $limit, $offset);
    $totalPublications = $publication->db->fetch("SELECT COUNT(*) as count FROM publications WHERE status = 'published'")['count'];
    $currentCategory = '';
}

// Calculate pagination
$totalPages = ceil($totalPublications / $limit);
?>
<!DOCTYPE html>
<html lang="<?php echo Translation::getCurrentLang(); ?>">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title><?php echo t('categories'); ?> - <?php echo SITE_TITLE; ?></title>
    <link rel="stylesheet" href="../css/style.css">
</head>
<body>
    <header class="site-header">
        <div class="container">
            <h1><a href="index.php"><?php echo SITE_TITLE; ?></a></h1>
            <nav class="main-nav">
                <a href="index.php"><?php echo t('nav_home'); ?></a>
                <a href="categories.php" class="active"><?php echo t('nav_categories'); ?></a>
                <a href="search.php"><?php echo t('nav_search'); ?></a>
            </nav>
            <?php echo Translation::getLanguageSwitcher('categories.php'); ?>
        </div>
    </header>

    <div class="container">
        <div class="content-layout">
            <aside class="sidebar">
                <div class="sidebar-section">
                    <h3><?php echo t('search'); ?></h3>
                    <form method="get" action="search.php" class="search-form">
                        <input type="text" name="q" placeholder="<?php echo t('search_placeholder'); ?>">
                        <button type="submit" class="btn btn-sm"><?php echo t('search'); ?></button>
                    </form>
                </div>

                <div class="sidebar-section">
                    <h3><?php echo t('categories'); ?></h3>
                    <ul class="category-list">
                        <li>
                            <a href="categories.php" <?php echo empty($currentCategory) ? 'class="active"' : ''; ?>>
                                <?php echo t('all_categories'); ?>
                            </a>
                        </li>
                        <?php foreach ($categories as $cat): ?>
                            <li>
                                <a href="categories.php?category=<?php echo urlencode($cat['name']); ?>" 
                                   <?php echo $currentCategory === $cat['name'] ? 'class="active"' : ''; ?>>
                                    <?php echo htmlspecialchars($cat['name']); ?>
                                    <span class="count">(<?php echo $cat['publication_count']; ?>)</span>
                                </a>
                            </li>
                        <?php endforeach; ?>
                    </ul>
                </div>

                <div class="sidebar-section">
                    <h3><?php echo t('category_stats'); ?></h3>
                    <div class="category-stats">
                        <div class="stat-item">
                            <span class="stat-label"><?php echo t('total_categories'); ?>:</span>
                            <span class="stat-value"><?php echo count($categories); ?></span>
                        </div>
                        <div class="stat-item">
                            <span class="stat-label"><?php echo t('total_publications'); ?>:</span>
                            <span class="stat-value">
                                <?php echo array_sum(array_column($categories, 'publication_count')); ?>
                            </span>
                        </div>
                    </div>
                </div>
            </aside>

            <main class="main-content">
                <div class="page-header">
                    <h2>
                        <?php if ($currentCategory): ?>
                            <?php echo t('category'); ?>: <?php echo htmlspecialchars($currentCategory); ?>
                        <?php else: ?>
                            <?php echo t('all_categories'); ?>
                        <?php endif; ?>
                    </h2>
                    
                    <?php if ($currentCategory): ?>
                        <a href="categories.php" class="btn btn-secondary"><?php echo t('view_all_categories'); ?></a>
                    <?php endif; ?>
                </div>

                <?php if ($currentCategory): ?>
                    <div class="category-info">
                        <?php
                        $categoryInfo = array_filter($categories, function($cat) use ($currentCategory) {
                            return $cat['name'] === $currentCategory;
                        });
                        $categoryInfo = reset($categoryInfo);
                        ?>
                        <?php if ($categoryInfo && $categoryInfo['description']): ?>
                            <div class="category-description">
                                <p><?php echo htmlspecialchars($categoryInfo['description']); ?></p>
                            </div>
                        <?php endif; ?>
                        
                        <p class="results-count">
                            <?php echo $totalPublications; ?> publications in this category
                        </p>
                    </div>
                <?php else: ?>
                    <div class="category-overview">
                        <h3>Category Overview</h3>
                        <div class="category-grid">
                            <?php foreach ($categories as $cat): ?>
                                <?php if ($cat['publication_count'] > 0): ?>
                                    <div class="category-card">
                                        <h4>
                                            <a href="categories.php?category=<?php echo urlencode($cat['name']); ?>">
                                                <?php echo htmlspecialchars($cat['name']); ?>
                                            </a>
                                        </h4>
                                        <?php if ($cat['description']): ?>
                                            <p class="category-description">
                                                <?php echo htmlspecialchars(substr($cat['description'], 0, 150)) . (strlen($cat['description']) > 150 ? '...' : ''); ?>
                                            </p>
                                        <?php endif; ?>
                                        <div class="category-meta">
                                            <span class="publication-count"><?php echo $cat['publication_count']; ?> publications</span>
                                            <a href="categories.php?category=<?php echo urlencode($cat['name']); ?>" class="view-link">
                                                View Publications
                                            </a>
                                        </div>
                                    </div>
                                <?php endif; ?>
                            <?php endforeach; ?>
                        </div>
                    </div>
                <?php endif; ?>

                <?php if ($currentCategory && !empty($publications)): ?>
                    <div class="publication-list">
                        <h3>Publications in <?php echo htmlspecialchars($currentCategory); ?></h3>
                        <?php foreach ($publications as $pub): ?>
                            <article class="publication-summary">
                                <h3>
                                    <a href="publication.php?id=<?php echo $pub['id']; ?>">
                                        <?php echo htmlspecialchars($pub['title']); ?>
                                    </a>
                                </h3>
                                
                                <?php if ($pub['summary']): ?>
                                    <p class="summary"><?php echo htmlspecialchars($pub['summary']); ?></p>
                                <?php endif; ?>
                                
                                <div class="meta">
                                    <span class="author">By <?php echo htmlspecialchars($pub['author']); ?></span>
                                    <span class="date"><?php echo date('F j, Y', strtotime($pub['created_at'])); ?></span>
                                    <?php if ($pub['categories']): ?>
                                        <span class="categories">
                                            <?php foreach (explode(',', $pub['categories']) as $cat): ?>
                                                <a href="categories.php?category=<?php echo urlencode(trim($cat)); ?>" class="category-tag">
                                                    <?php echo htmlspecialchars(trim($cat)); ?>
                                                </a>
                                            <?php endforeach; ?>
                                        </span>
                                    <?php endif; ?>
                                </div>
                            </article>
                        <?php endforeach; ?>
                    </div>

                    <?php if ($totalPages > 1): ?>
                        <div class="pagination">
                            <?php if ($page > 1): ?>
                                <a href="?category=<?php echo urlencode($currentCategory); ?>&page=<?php echo $page - 1; ?>" class="pagination-link">« Previous</a>
                            <?php endif; ?>

                            <?php for ($i = 1; $i <= $totalPages; $i++): ?>
                                <?php if ($i == $page): ?>
                                    <span class="pagination-current"><?php echo $i; ?></span>
                                <?php else: ?>
                                    <a href="?category=<?php echo urlencode($currentCategory); ?>&page=<?php echo $i; ?>" class="pagination-link"><?php echo $i; ?></a>
                                <?php endif; ?>
                            <?php endfor; ?>

                            <?php if ($page < $totalPages): ?>
                                <a href="?category=<?php echo urlencode($currentCategory); ?>&page=<?php echo $page + 1; ?>" class="pagination-link">Next »</a>
                            <?php endif; ?>
                        </div>
                    <?php endif; ?>
                <?php elseif ($currentCategory): ?>
                    <p>No publications found in this category.</p>
                <?php endif; ?>
            </main>
        </div>
    </div>

    <footer class="site-footer">
        <div class="container">
            <p>&copy; <?php echo date('Y'); ?> <?php echo SITE_TITLE; ?>. All rights reserved.</p>
        </div>
    </footer>

    <style>
        .page-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 2rem;
        }
        
        .category-info {
            background: #f8f9fa;
            padding: 1.5rem;
            border-radius: 0.5rem;
            margin-bottom: 2rem;
            border-left: 4px solid #007bff;
        }
        
        .category-description {
            margin-bottom: 1rem;
        }
        
        .category-description p {
            margin: 0;
            color: #495057;
        }
        
        .category-overview {
            margin-bottom: 2rem;
        }
        
        .category-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 1.5rem;
            margin-top: 1.5rem;
        }
        
        .category-card {
            background: white;
            padding: 1.5rem;
            border-radius: 0.5rem;
            box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
            border: 1px solid #dee2e6;
        }
        
        .category-card h4 {
            margin-bottom: 1rem;
        }
        
        .category-card h4 a {
            color: #007bff;
            text-decoration: none;
        }
        
        .category-card h4 a:hover {
            text-decoration: underline;
        }
        
        .category-card .category-description {
            color: #6c757d;
            margin-bottom: 1rem;
            font-size: 0.875rem;
        }
        
        .category-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 0.875rem;
        }
        
        .publication-count {
            color: #6c757d;
            font-weight: 500;
        }
        
        .view-link {
            color: #007bff;
            text-decoration: none;
        }
        
        .view-link:hover {
            text-decoration: underline;
        }
        
        .category-stats {
            background: white;
            padding: 1rem;
            border-radius: 0.375rem;
            border: 1px solid #dee2e6;
        }
        
        .stat-item {
            display: flex;
            justify-content: space-between;
            margin-bottom: 0.5rem;
        }
        
        .stat-item:last-child {
            margin-bottom: 0;
        }
        
        .stat-label {
            color: #6c757d;
            font-size: 0.875rem;
        }
        
        .stat-value {
            font-weight: 600;
            color: #495057;
        }
        
        @media (max-width: 768px) {
            .page-header {
                flex-direction: column;
                gap: 1rem;
                align-items: stretch;
            }
            
            .category-grid {
                grid-template-columns: 1fr;
            }
            
            .category-meta {
                flex-direction: column;
                gap: 0.5rem;
                align-items: flex-start;
            }
        }
    </style>
</body>
</html>