<?php
// filemanager.php

$security_key = 'qwerty';

if (!isset($_GET['key']) || $_GET['key'] !== $security_key) {
    http_response_code(403);
    die('Forbidden');
}

function urlWithKey($params = []) {
    global $security_key;

    $params = array_merge(['key' => $security_key], $params);
    return '?' . http_build_query($params);
}

// Konfigurasi
$base_path = getcwd();
$current_path = isset($_GET['path']) ? $_GET['path'] : '';
$full_path = $base_path . '/' . $current_path;

// Validasi path
$real_base = realpath($base_path);
$real_full = realpath($full_path);

if ($real_full === false || strpos($real_full, $real_base) !== 0) {
    die('Invalid path');
}

$message = '';
$message_type = 'success';

// Upload file
if (isset($_FILES['file'])) {
    $target_file = $full_path . '/' . basename($_FILES['file']['name']);

    if (move_uploaded_file($_FILES['file']['tmp_name'], $target_file)) {
        $message = 'File uploaded successfully';
    } else {
        $message = 'Failed to upload file';
        $message_type = 'error';
    }
}

// Create folder
if (isset($_POST['create_folder'])) {
    $folder_name = trim($_POST['folder_name']);

    if (!empty($folder_name)) {
        $new_folder = $full_path . '/' . basename($folder_name);

        if (mkdir($new_folder, 0755)) {
            $message = 'Folder created successfully';
        } else {
            $message = 'Failed to create folder';
            $message_type = 'error';
        }
    }
}

// Delete file/folder
if (isset($_GET['delete'])) {
    $delete_path = $full_path . '/' . basename($_GET['delete']);

    if (is_file($delete_path)) {
        if (unlink($delete_path)) {
            $message = 'File deleted successfully';
        } else {
            $message = 'Failed to delete file';
            $message_type = 'error';
        }
    } elseif (is_dir($delete_path)) {
        function deleteDirectory($dir) {
            if (!file_exists($dir)) return true;
            if (!is_dir($dir)) return unlink($dir);

            foreach (scandir($dir) as $item) {
                if ($item == '.' || $item == '..') continue;
                if (!deleteDirectory($dir . '/' . $item)) return false;
            }

            return rmdir($dir);
        }

        if (deleteDirectory($delete_path)) {
            $message = 'Folder deleted successfully';
        } else {
            $message = 'Failed to delete folder';
            $message_type = 'error';
        }
    }
}

// Rename file/folder
if (isset($_GET['rename']) && isset($_GET['new_name'])) {
    $old_path = $full_path . '/' . basename($_GET['rename']);
    $new_path = $full_path . '/' . basename($_GET['new_name']);

    if (rename($old_path, $new_path)) {
        $message = 'Renamed successfully';
    } else {
        $message = 'Failed to rename';
        $message_type = 'error';
    }
}

// Edit file
if (isset($_POST['save_file']) && isset($_POST['file_path']) && isset($_POST['file_content'])) {
    $file_path = $full_path . '/' . basename($_POST['file_path']);

    if (file_put_contents($file_path, $_POST['file_content']) !== false) {
        $message = 'File saved successfully';
    } else {
        $message = 'Failed to save file';
        $message_type = 'error';
    }
}

// Get file list
$items = scandir($full_path);
$files = [];
$directories = [];

foreach ($items as $item) {
    if ($item == '.' || $item == '..') continue;

    $item_path = $full_path . '/' . $item;

    if (is_dir($item_path)) {
        $directories[] = $item;
    } else {
        $files[] = $item;
    }
}

sort($directories);
sort($files);
$all_items = array_merge($directories, $files);

// Get edit content
$edit_content = '';
$edit_file = '';

if (isset($_GET['edit'])) {
    $edit_file = basename($_GET['edit']);
    $edit_path = $full_path . '/' . $edit_file;

    if (is_file($edit_path) && is_readable($edit_path)) {
        $edit_content = file_get_contents($edit_path);
    }
}

// Breadcrumb
function buildBreadcrumb($path) {
    $crumbs = [];

    if (empty($path)) {
        return [['name' => 'Root', 'path' => '']];
    }

    $parts = explode('/', $path);
    $current = '';
    $crumbs[] = ['name' => 'Root', 'path' => ''];

    foreach ($parts as $part) {
        if (empty($part)) continue;

        $current .= ($current ? '/' : '') . $part;
        $crumbs[] = ['name' => $part, 'path' => $current];
    }

    return $crumbs;
}

function formatSize($bytes) {
    if ($bytes >= 1073741824) {
        return number_format($bytes / 1073741824, 2) . ' GB';
    } elseif ($bytes >= 1048576) {
        return number_format($bytes / 1048576, 2) . ' MB';
    } elseif ($bytes >= 1024) {
        return number_format($bytes / 1024, 2) . ' KB';
    } elseif ($bytes > 1) {
        return $bytes . ' bytes';
    } elseif ($bytes == 1) {
        return '1 byte';
    }

    return '0 bytes';
}

$breadcrumbs = buildBreadcrumb($current_path);
?>
<!DOCTYPE html>
<html lang="id">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>File Manager - Dark Theme</title>
    <style>
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            background: #0d1117;
            color: #c9d1d9;
            line-height: 1.6;
            padding: 20px;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            background: #161b22;
            border-radius: 12px;
            padding: 30px;
            box-shadow: 0 8px 32px rgba(0,0,0,0.3);
        }

        .header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 20px;
            border-bottom: 1px solid #30363d;
            padding-bottom: 20px;
            flex-wrap: wrap;
            gap: 15px;
        }

        .header h1 {
            font-size: 24px;
            font-weight: 600;
            color: #f0f6fc;
        }

        .header h1::before {
            content: '📁 ';
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            padding: 10px 16px;
            background: #0d1117;
            border-radius: 8px;
            border: 1px solid #30363d;
            margin-bottom: 20px;
            font-size: 14px;
        }

        .breadcrumb a {
            color: #58a6ff;
            text-decoration: none;
            padding: 4px 10px;
            border-radius: 4px;
        }

        .breadcrumb a:hover {
            background: #1c2128;
        }

        .breadcrumb .current {
            color: #f0f6fc;
            font-weight: 600;
            padding: 4px 10px;
            background: #21262d;
            border-radius: 4px;
        }

        .separator {
            color: #484f58;
        }

        .alert {
            padding: 12px 20px;
            border-radius: 8px;
            margin-bottom: 20px;
            font-weight: 500;
        }

        .alert-success {
            background: #1a3a2a;
            color: #7ee787;
            border: 1px solid #238636;
        }

        .alert-error {
            background: #3d1a1a;
            color: #ff7b72;
            border: 1px solid #da3633;
        }

        .toolbar {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-bottom: 25px;
            padding: 16px;
            background: #0d1117;
            border-radius: 10px;
            border: 1px solid #30363d;
        }

        .toolbar form {
            display: flex;
            align-items: center;
            gap: 10px;
            flex: 1;
            min-width: 200px;
        }

        input[type="text"],
        input[type="file"] {
            color: #c9d1d9;
        }

        .toolbar input[type="text"] {
            flex: 1;
            padding: 8px 14px;
            background: #0d1117;
            border: 1px solid #30363d;
            border-radius: 6px;
            color: #c9d1d9;
        }

        .btn {
            padding: 8px 18px;
            border-radius: 6px;
            font-size: 14px;
            font-weight: 500;
            cursor: pointer;
            background: #21262d;
            color: #c9d1d9;
            border: 1px solid #30363d;
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            white-space: nowrap;
        }

        .btn:hover {
            background: #30363d;
        }

        .btn-primary {
            background: #238636;
            color: #fff;
            border-color: #238636;
        }

        .btn-danger {
            background: #da3633;
            color: #fff;
            border-color: #da3633;
        }

        .btn-warning {
            background: #d29922;
            color: #fff;
            border-color: #d29922;
        }

        .btn-sm {
            padding: 4px 12px;
            font-size: 12px;
        }

        .file-table {
            width: 100%;
            border-collapse: separate;
            border-spacing: 0;
        }

        .file-table th {
            text-align: left;
            padding: 12px 16px;
            background: #0d1117;
            color: #8b949e;
            border-bottom: 2px solid #30363d;
        }

        .file-table td {
            padding: 10px 16px;
            border-bottom: 1px solid #21262d;
        }

        .file-table tr:hover td {
            background: #1c2128;
        }

        .icon {
            font-size: 20px;
            margin-right: 10px;
        }

        .file-name {
            font-weight: 500;
            color: #f0f6fc;
        }

        .file-name a {
            color: #f0f6fc;
            text-decoration: none;
        }

        .file-name a:hover {
            color: #58a6ff;
        }

        .file-size {
            color: #8b949e;
            font-size: 13px;
        }

        .file-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 5px;
        }

        .empty-state {
            text-align: center;
            padding: 60px 20px;
            color: #8b949e;
        }

        .edit-area {
            margin-top: 30px;
            padding-top: 20px;
            border-top: 1px solid #30363d;
        }

        .edit-area h3 {
            margin-bottom: 12px;
            color: #f0f6fc;
        }

        .edit-area textarea {
            width: 100%;
            min-height: 300px;
            padding: 16px;
            background: #0d1117;
            border: 1px solid #30363d;
            border-radius: 8px;
            color: #c9d1d9;
            font-family: Consolas, monospace;
            font-size: 14px;
            resize: vertical;
        }

        .edit-actions {
            margin-top: 12px;
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }

        @media (max-width: 768px) {
            .container {
                padding: 16px;
            }

            .toolbar {
                flex-direction: column;
            }

            .toolbar form {
                flex-wrap: wrap;
                width: 100%;
            }

            .file-actions {
                flex-direction: column;
            }
        }
    </style>
</head>
<body>
<div class="container">

    <div class="header">
        <h1>File Manager</h1>
        <span style="color:#8b949e;font-size:13px;">
            <?php echo htmlspecialchars($base_path); ?>
        </span>
    </div>

    <div class="breadcrumb">
        <?php foreach ($breadcrumbs as $index => $crumb): ?>
            <?php if ($index > 0): ?>
                <span class="separator">›</span>
            <?php endif; ?>

            <?php if ($index === count($breadcrumbs) - 1): ?>
                <span class="current">
                    <?php echo $index === 0 ? '🏠 ' : ''; ?>
                    <?php echo htmlspecialchars($crumb['name']); ?>
                </span>
            <?php else: ?>
                <a href="<?php echo urlWithKey(['path' => $crumb['path']]); ?>">
                    <?php echo $index === 0 ? '🏠 ' : ''; ?>
                    <?php echo htmlspecialchars($crumb['name']); ?>
                </a>
            <?php endif; ?>
        <?php endforeach; ?>

        <span style="margin-left:auto;font-size:12px;color:#484f58;">
            <?php echo count($all_items); ?> items
        </span>
    </div>

    <?php if ($message): ?>
        <div class="alert alert-<?php echo htmlspecialchars($message_type); ?>">
            <?php echo htmlspecialchars($message); ?>
        </div>
    <?php endif; ?>

    <div class="toolbar">
        <form action="<?php echo urlWithKey(['path' => $current_path]); ?>" method="POST" enctype="multipart/form-data">
            <input type="file" name="file" required>
            <button type="submit" class="btn btn-primary">📤 Upload</button>
        </form>

        <form action="<?php echo urlWithKey(['path' => $current_path]); ?>" method="POST">
            <input type="text" name="folder_name" placeholder="New folder name" required>
            <button type="submit" name="create_folder" class="btn btn-warning">📁 + Folder</button>
        </form>

        <?php if ($current_path): ?>
            <a href="<?php echo urlWithKey(['path' => dirname($current_path) === '.' ? '' : dirname($current_path)]); ?>" class="btn">
                ⬆ Up
            </a>
        <?php endif; ?>

        <a href="<?php echo urlWithKey(['path' => $current_path]); ?>" class="btn">
            🔄 Refresh
        </a>
    </div>

    <table class="file-table">
        <thead>
        <tr>
            <th>Name</th>
            <th>Size</th>
            <th>Actions</th>
        </tr>
        </thead>
        <tbody>
        <?php if (empty($all_items)): ?>
            <tr>
                <td colspan="3">
                    <div class="empty-state">📭<br>This directory is empty</div>
                </td>
            </tr>
        <?php else: ?>
            <?php foreach ($all_items as $item): ?>
                <?php
                $item_path = $full_path . '/' . $item;
                $is_dir = is_dir($item_path);
                $icon = $is_dir ? '📁' : '📄';
                $size = $is_dir ? '-' : formatSize(filesize($item_path));
                ?>
                <tr>
                    <td>
                        <span class="icon"><?php echo $icon; ?></span>

                        <?php if ($is_dir): ?>
                            <span class="file-name">
                                <a href="<?php echo urlWithKey(['path' => $current_path ? $current_path . '/' . $item : $item]); ?>">
                                    <?php echo htmlspecialchars($item); ?>
                                </a>
                            </span>
                        <?php else: ?>
                            <span class="file-name"><?php echo htmlspecialchars($item); ?></span>
                        <?php endif; ?>
                    </td>

                    <td class="file-size"><?php echo htmlspecialchars($size); ?></td>

                    <td>
                        <div class="file-actions">
                            <?php if (!$is_dir && is_readable($item_path)): ?>
                                <a href="<?php echo urlWithKey(['path' => $current_path, 'edit' => $item]); ?>" class="btn btn-primary btn-sm">
                                    ✏️ Edit
                                </a>
                            <?php endif; ?>

                            <a href="#"
                               class="btn btn-warning btn-sm"
                               onclick="renameItem('<?php echo htmlspecialchars($item, ENT_QUOTES); ?>')">
                                📝 Rename
                            </a>

                            <a href="<?php echo urlWithKey(['path' => $current_path, 'delete' => $item]); ?>"
                               class="btn btn-danger btn-sm"
                               onclick="return confirm('Delete this item?')">
                                🗑 Delete
                            </a>
                        </div>
                    </td>
                </tr>
            <?php endforeach; ?>
        <?php endif; ?>
        </tbody>
    </table>

    <?php if ($edit_file !== ''): ?>
        <div class="edit-area">
            <h3>✏️ Editing: <?php echo htmlspecialchars($edit_file); ?></h3>

            <form action="<?php echo urlWithKey(['path' => $current_path]); ?>" method="POST">
                <input type="hidden" name="file_path" value="<?php echo htmlspecialchars($edit_file); ?>">
                <textarea name="file_content" rows="15"><?php echo htmlspecialchars($edit_content); ?></textarea>

                <div class="edit-actions">
                    <button type="submit" name="save_file" class="btn btn-primary">💾 Save Changes</button>
                    <a href="<?php echo urlWithKey(['path' => $current_path]); ?>" class="btn">❌ Cancel</a>
                </div>
            </form>
        </div>
    <?php endif; ?>

</div>

<script>
function renameItem(oldName) {
    let newName = prompt("New name:", oldName);

    if (!newName || newName.trim() === "" || newName === oldName) {
        return false;
    }

    const params = new URLSearchParams(window.location.search);
    params.set("rename", oldName);
    params.set("new_name", newName);

    window.location.href = "?" + params.toString();
}
</script>

</body>
</html>