@extends('layouts.admin')

@section('title', '数据库备份')

@section('page-title', '数据库备份')

@section('content')
<div class="backup-header">
    <div class="db-info">
        <div class="info-card">
            <span class="info-label">数据库大小</span>
            <span class="info-value">{{ $dbSize }}</span>
        </div>
        <div class="info-card">
            <span class="info-label">备份文件数量</span>
            <span class="info-value">{{ count($backups) }}</span>
        </div>
    </div>
    <div class="action-buttons">
        <form action="{{ route('admin.backup.create') }}" method="POST" style="display: inline;">
            @csrf
            <button type="submit" class="btn btn-primary">
                <svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
                    <path d="M21 15v4a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2v-4"></path>
                    <polyline points="17 8 12 3 7 8"></polyline>
                    <line x1="12" y1="3" x2="12" y2="15"></line>
                </svg>
                创建备份
            </button>
        </form>
        <button type="button" class="btn btn-secondary" onclick="document.getElementById('uploadModal').style.display='block'">
            <svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
                <path d="M21 15v4a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2v-4"></path>
                <polyline points="17 8 12 3 7 8"></polyline>
                <line x1="12" y1="3" x2="12" y2="15"></line>
            </svg>
            上传恢复
        </button>
    </div>
</div>

<style>
    .backup-header {
        display: flex;
        justify-content: space-between;
        align-items: center;
        margin-bottom: 2rem;
        flex-wrap: wrap;
        gap: 1rem;
    }

    .db-info {
        display: flex;
        gap: 1rem;
        flex-wrap: wrap;
    }

    .info-card {
        background: white;
        padding: 1rem 1.5rem;
        border-radius: 0.5rem;
        box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
        display: flex;
        flex-direction: column;
        gap: 0.25rem;
    }

    .info-label {
        font-size: 0.75rem;
        color: #6b7280;
        text-transform: uppercase;
        letter-spacing: 0.05em;
    }

    .info-value {
        font-size: 1.5rem;
        font-weight: 700;
        color: #3b82f6;
    }

    .btn-primary svg {
        vertical-align: middle;
    }

    .empty-state {
        text-align: center;
        padding: 4rem 2rem;
        background: white;
        border-radius: 0.5rem;
        box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    }

    .empty-state svg {
        color: #d1d5db;
        margin-bottom: 1rem;
    }

    .empty-state h3 {
        color: #374151;
        margin-bottom: 0.5rem;
    }

    .empty-state p {
        color: #6b7280;
    }

    .backup-actions {
        display: flex;
        gap: 0.5rem;
    }

    .btn-download {
        background: #10b981;
        color: white;
    }

    .btn-download:hover {
        background: #059669;
    }

    .btn-restore {
        background: #f59e0b;
        color: white;
    }

    .btn-restore:hover {
        background: #d97706;
    }

    .btn-secondary {
        background: #6b7280;
        color: white;
    }

    .btn-secondary:hover {
        background: #4b5563;
    }

    .action-buttons {
        display: flex;
        gap: 0.5rem;
    }

    .btn-sm svg {
        vertical-align: middle;
    }

    /* Modal styles */
    .modal {
        display: none;
        position: fixed;
        z-index: 1000;
        left: 0;
        top: 0;
        width: 100%;
        height: 100%;
        background-color: rgba(0,0,0,0.5);
    }

    .modal-content {
        background-color: #fefefe;
        margin: 10% auto;
        padding: 2rem;
        border-radius: 0.5rem;
        width: 90%;
        max-width: 500px;
        box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    }

    .modal-header {
        display: flex;
        justify-content: space-between;
        align-items: center;
        margin-bottom: 1.5rem;
    }

    .modal-header h3 {
        margin: 0;
        color: #374151;
    }

    .close {
        color: #aaa;
        font-size: 28px;
        font-weight: bold;
        cursor: pointer;
        line-height: 1;
    }

    .close:hover {
        color: #000;
    }

    .modal-warning {
        background: #fef2f2;
        border: 1px solid #fecaca;
        border-radius: 0.375rem;
        padding: 1rem;
        margin-bottom: 1.5rem;
    }

    .modal-warning p {
        margin: 0;
        color: #991b1b;
        font-size: 0.875rem;
    }

    .file-input-wrapper {
        position: relative;
        margin-bottom: 1.5rem;
    }

    .file-input-wrapper input[type="file"] {
        width: 100%;
        padding: 0.75rem;
        border: 2px dashed #d1d5db;
        border-radius: 0.375rem;
        cursor: pointer;
    }

    .file-input-wrapper input[type="file"]:hover {
        border-color: #3b82f6;
    }
</style>

@if(empty($backups))
<div class="empty-state">
    <svg xmlns="http://www.w3.org/2000/svg" width="64" height="64" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round">
        <rect x="2" y="2" width="20" height="8" rx="2" ry="2"></rect>
        <rect x="2" y="14" width="20" height="8" rx="2" ry="2"></rect>
        <line x1="6" y1="6" x2="6.01" y2="6"></line>
        <line x1="6" y1="18" x2="6.01" y2="18"></line>
    </svg>
    <h3>暂无备份文件</h3>
    <p>点击上方"创建备份"按钮开始备份您的数据库</p>
</div>
@else
<table>
    <thead>
        <tr>
            <th>文件名</th>
            <th>文件大小</th>
            <th>创建时间</th>
            <th>操作</th>
        </tr>
    </thead>
    <tbody>
        @foreach($backups as $backup)
        <tr>
            <td>
                <code style="background: #f3f4f6; padding: 0.25rem 0.5rem; border-radius: 0.25rem; font-size: 0.875rem;">
                    {{ $backup['filename'] }}
                </code>
            </td>
            <td>{{ $backup['size'] }}</td>
            <td>{{ $backup['created_at'] }}</td>
            <td>
                <div class="backup-actions">
                    <a href="{{ route('admin.backup.download', $backup['filename']) }}" class="btn btn-sm btn-download">
                        <svg xmlns="http://www.w3.org/2000/svg" width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
                            <path d="M21 15v4a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2v-4"></path>
                            <polyline points="7 10 12 15 17 10"></polyline>
                            <line x1="12" y1="15" x2="12" y2="3"></line>
                        </svg>
                        下载
                    </a>
                    <a href="{{ route('admin.backup.restore.confirm', $backup['filename']) }}" class="btn btn-sm btn-restore">
                        <svg xmlns="http://www.w3.org/2000/svg" width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
                            <polyline points="1 4 1 10 7 10"></polyline>
                            <path d="M3.51 15a9 9 0 1 0 2.13-9.36L1 10"></path>
                        </svg>
                        恢复
                    </a>
                    <form action="{{ route('admin.backup.destroy', $backup['filename']) }}" method="POST" style="display: inline;" onsubmit="return confirm('确定要删除此备份文件吗？');">
                        @csrf
                        @method('DELETE')
                        <button type="submit" class="btn btn-sm btn-danger">
                            <svg xmlns="http://www.w3.org/2000/svg" width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
                                <polyline points="3 6 5 6 21 6"></polyline>
                                <path d="M19 6v14a2 2 0 0 1-2 2H7a2 2 0 0 1-2-2V6m3 0V4a2 2 0 0 1 2-2h4a2 2 0 0 1 2 2v2"></path>
                            </svg>
                            删除
                        </button>
                    </form>
                </div>
            </td>
        </tr>
        @endforeach
    </tbody>
</table>
@endif

<div style="margin-top: 2rem; padding: 1rem; background: #fef3c7; border-radius: 0.5rem; border-left: 4px solid #f59e0b;">
    <h4 style="margin-bottom: 0.5rem; color: #92400e;">
        <svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" style="vertical-align: middle; margin-right: 0.25rem;">
            <circle cx="12" cy="12" r="10"></circle>
            <line x1="12" y1="8" x2="12" y2="12"></line>
            <line x1="12" y1="16" x2="12.01" y2="16"></line>
        </svg>
        注意事项
    </h4>
    <ul style="margin: 0; padding-left: 1.25rem; color: #92400e; font-size: 0.875rem;">
        <li>备份文件存储在服务器 storage/app/backups 目录下</li>
        <li>建议定期下载备份文件到本地保存</li>
        <li>恢复数据库会覆盖当前数据，请谨慎操作</li>
    </ul>
</div>

<!-- 上传恢复模态框 -->
<div id="uploadModal" class="modal">
    <div class="modal-content">
        <div class="modal-header">
            <h3>上传并恢复数据库</h3>
            <span class="close" onclick="document.getElementById('uploadModal').style.display='none'">&times;</span>
        </div>
        <div class="modal-warning">
            <p>警告：上传的备份文件将覆盖当前数据库中的所有数据，此操作无法撤销！</p>
        </div>
        <form action="{{ route('admin.backup.upload-restore') }}" method="POST" enctype="multipart/form-data">
            @csrf
            <div class="file-input-wrapper">
                <input type="file" name="backup_file" accept=".sql,.txt" required>
            </div>
            <div style="display: flex; gap: 1rem; justify-content: flex-end;">
                <button type="button" class="btn btn-secondary" onclick="document.getElementById('uploadModal').style.display='none'">取消</button>
                <button type="submit" class="btn btn-danger" onclick="return confirm('确定要上传并恢复数据库吗？此操作将覆盖当前所有数据！');">
                    <svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
                        <polyline points="1 4 1 10 7 10"></polyline>
                        <path d="M3.51 15a9 9 0 1 0 2.13-9.36L1 10"></path>
                    </svg>
                    上传并恢复
                </button>
            </div>
        </form>
    </div>
</div>

<script>
    // 点击模态框外部关闭
    window.onclick = function(event) {
        var modal = document.getElementById('uploadModal');
        if (event.target == modal) {
            modal.style.display = 'none';
        }
    }
</script>
@endsection