kb-web/dashboard.php

<?php
require_once 'config.php';
checkLogin();

$user = getCurrentUser();
$username = $user['username'];
$docDir = getUserDocDir($username);

// 搜索关键词
$search = trim($_GET['q'] ?? '');

// 递归获取文档列表
$documents = [];

function scanDirectory($dir, $baseDir, $search) {
    $docs = [];
    if (!is_dir($dir)) return $docs;
    
    $items = scandir($dir);
    foreach ($items as $item) {
        if ($item === '.' || $item === '..') continue;
        
        $fullPath = $dir . '/' . $item;
        $relativePath = str_replace($baseDir . '/', '', $fullPath);
        
        if (is_dir($fullPath)) {
            // 递归扫描子目录
            $docs = array_merge($docs, scanDirectory($fullPath, $baseDir, $search));
        } elseif (is_file($fullPath)) {
            // 只处理 .md 和 .txt 文件
            $ext = strtolower(pathinfo($item, PATHINFO_EXTENSION));
            if (!in_array($ext, ['md', 'txt', 'markdown'])) continue;
            
            $content = file_get_contents($fullPath);
            
            // 搜索过滤
            if ($search) {
                $searchLower = mb_strtolower($search);
                $titleLower = mb_strtolower($item);
                $contentLower = mb_strtolower($content);
                if (strpos($titleLower, $searchLower) === false && 
                    strpos($contentLower, $searchLower) === false) {
                    continue;
                }
            }
            
            $docs[] = [
                'name' => $item,
                'path' => $relativePath,
                'folder' => dirname($relativePath) === '.' ? '' : dirname($relativePath),
                'size' => filesize($fullPath),
                'mtime' => filemtime($fullPath),
                'preview' => mb_substr(strip_tags($content), 0, 200)
            ];
        }
    }
    return $docs;
}

$documents = scanDirectory($docDir, $docDir, $search);

// 按文件夹分组，然后按修改时间排序
usort($documents, function($a, $b) {
    // 先按文件夹排序
    if ($a['folder'] !== $b['folder']) {
        return strcmp($a['folder'], $b['folder']);
    }
    // 同一文件夹按修改时间排序（新文件在前）
    return $b['mtime'] - $a['mtime'];
});
?>
<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>知识库 - <?php echo htmlspecialchars($username); ?></title>
    <link rel="stylesheet" href="style.css">
</head>
<body>
    <div class="dashboard">
        <header class="header">
            <h1>📚 我的知识库</h1>
            <div class="user-info">
                <span><?php echo htmlspecialchars($username); ?></span>
                <a href="logout.php" class="btn-logout">退出</a>
            </div>
        </header>
        
        <div class="search-bar">
            <form method="GET" action="">
                <input type="text" name="q" placeholder="搜索文档..." 
                       value="<?php echo htmlspecialchars($search); ?>">
                <button type="submit">搜索</button>
                <?php if ($search): ?>
                    <a href="dashboard.php" class="btn-clear">清除</a>
                <?php endif; ?>
            </form>
        </div>
        
        <div class="stats">
            共 <?php echo count($documents); ?> 个文档
            <?php if ($search): ?>
                <span class="search-hint">（搜索: "<?php echo htmlspecialchars($search); ?>"）</span>
            <?php endif; ?>
        </div>
        
        <div class="document-list">
            <?php if (empty($documents)): ?>
                <div class="empty">
                    <?php if ($search): ?>
                        没有找到匹配的文档
                    <?php else: ?>
                        暂无文档
                    <?php endif; ?>
                </div>
            <?php else: ?>
                <?php 
                $currentFolder = '';
                foreach ($documents as $doc): 
                    // 显示文件夹分隔
                    if ($doc['folder'] !== $currentFolder):
                        $currentFolder = $doc['folder'];
                        if ($currentFolder):
                ?>
                    <div class="folder-separator">
                        📁 <?php echo htmlspecialchars($currentFolder); ?>
                    </div>
                <?php 
                        endif;
                    endif; 
                ?>
                    <a href="view.php?file=<?php echo urlencode($doc['path']); ?><?php echo $search ? '&q=' . urlencode($search) : ''; ?>" 
                       class="document-card">
                        <div class="doc-icon">📄</div>
                        <div class="doc-info">
                            <div class="doc-name"><?php echo htmlspecialchars($doc['name']); ?></div>
                            <div class="doc-meta">
                                <?php echo round($doc['size'] / 1024, 1); ?> KB · 
                                <?php echo date('Y-m-d H:i', $doc['mtime']); ?>
                                <?php if ($doc['folder']): ?>
                                    · 📁 <?php echo htmlspecialchars($doc['folder']); ?>
                                <?php endif; ?>
                            </div>
                            <div class="doc-preview"><?php echo htmlspecialchars($doc['preview']); ?>...</div>
                        </div>
                    </a>
                <?php endforeach; ?>
            <?php endif; ?>
        </div>
    </div>
</body>
</html>