nongchang
/
kknongchang_2506


			
				
					
						
						
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							<?php

namespace App\Module\Cleanup\AdminControllers\Actions;

use App\Module\Cleanup\Models\CleanupBackup;
use Dcat\Admin\Actions\RowAction;
use Dcat\Admin\Actions\Response;
use Illuminate\Http\Request;

/**
 * 查看备份文件Action
 * 
 * 用于查看备份的文件列表
 */
class ViewBackupFilesAction extends RowAction
{
    /**
     * 按钮标题
     */
    protected $title = '查看文件';

    /**
     * 处理请求
     */
    public function handle(Request $request)
    {
        try {
            $backupId = $this->getKey();
            
            $backup = CleanupBackup::with('files')->find($backupId);
            
            if (!$backup) {
                return $this->response()
                    ->error('备份不存在');
            }
            
            $files = $backup->files;
            
            if ($files->isEmpty()) {
                return $this->response()
                    ->info('该备份暂无文件');
            }
            
            $html = '<div class="table-responsive"><table class="table table-striped table-sm">';
            $html .= '<thead><tr><th>表名</th><th>文件名</th><th>文件大小</th><th>文件路径</th><th>备份类型</th><th>压缩类型</th><th>哈希值</th></tr></thead>';
            $html .= '<tbody>';
            
            $backupTypes = [1 => 'SQL', 2 => 'JSON', 3 => 'CSV'];
            $compressionTypes = [1 => '无压缩', 2 => 'GZIP', 3 => 'ZIP'];
            
            foreach ($files as $file) {
                $backupType = $backupTypes[$file->backup_type] ?? '未知';
                $compressionType = $compressionTypes[$file->compression_type] ?? '未知';
                $fileSize = $this->formatBytes($file->file_size);
                $hash = $file->file_hash ? substr($file->file_hash, 0, 16) . '...' : '-';
                
                $html .= "<tr>";
                $html .= "<td>{$file->table_name}</td>";
                $html .= "<td>{$file->file_name}</td>";
                $html .= "<td>{$fileSize}</td>";
                $html .= "<td><small>{$file->file_path}</small></td>";
                $html .= "<td><span class='badge badge-info'>{$backupType}</span></td>";
                $html .= "<td><span class='badge badge-secondary'>{$compressionType}</span></td>";
                $html .= "<td><small>{$hash}</small></td>";
                $html .= "</tr>";
            }
            
            $html .= '</tbody></table></div>';
            
            // 添加统计信息
            $totalSize = $files->sum('file_size');
            $totalFiles = $files->count();
            
            $html .= '<div class="row mt-3">';
            $html .= '<div class="col-md-6"><div class="card card-body text-center">';
            $html .= '<h5 class="text-primary">' . $totalFiles . '</h5>';
            $html .= '<small>文件总数</small>';
            $html .= '</div></div>';
            
            $html .= '<div class="col-md-6"><div class="card card-body text-center">';
            $html .= '<h5 class="text-info">' . $this->formatBytes($totalSize) . '</h5>';
            $html .= '<small>文件总大小</small>';
            $html .= '</div></div>';
            $html .= '</div>';
            
            return $this->response()
                ->success('备份文件列表')
                ->detail($html);
                
        } catch (\Exception $e) {
            return $this->response()
                ->error('查看失败：' . $e->getMessage());
        }
    }

    /**
     * 格式化字节大小
     */
    private function formatBytes($bytes)
    {
        if ($bytes == 0) return '0 B';
        
        $units = ['B', 'KB', 'MB', 'GB', 'TB'];
        $base = log($bytes, 1024);
        $index = floor($base);
        
        if ($index >= count($units)) {
            $index = count($units) - 1;
        }
        
        $size = round(pow(1024, $base - $index), 2);
        return $size . ' ' . $units[$index];
    }

    /**
     * 渲染按钮
     */
    public function render()
    {
        return <<<HTML
<a href="javascript:void(0);" class="btn btn-info btn-xs" data-action="{$this->getHandleRoute()}">
    <i class="fa fa-files-o"></i> {$this->title}
</a>
HTML;
    }
}