<?php

namespace App\Http\Controllers\System\Admin;

use App\Http\Controllers\Controller;
use App\Http\Requests\LogRequest;
use App\Services\System\LogService;
use Maatwebsite\Excel\Facades\Excel;
use App\Exports\GenericExport;

class Log extends Controller
{
    protected $logService;

    public function __construct(LogService $logService)
    {
        $this->logService = $logService;
    }

    public function index(LogRequest $request)
    {
        $result = $this->logService->getList($request->validated());
        return response()->json([
            'code' => 200,
            'message' => 'success',
            'data' => $result
        ]);
    }

    public function export(LogRequest $request)
    {
        $params = $request->validated();
        $pageSize = $params['page_size'] ?? 10000; // 导出时默认获取更多数据

        // 获取所有符合条件的日志（不分页）
        $query = $this->logService->getListQuery($params);
        $logs = $query->limit($pageSize)->get();

        // 准备导出数据
        $headers = [
            'ID', '用户名', '模块', '操作', '请求方法', 'URL', 'IP地址',
            '状态码', '状态', '错误信息', '执行时间(ms)', '创建时间'
        ];

        $data = [];
        foreach ($logs as $log) {
            $data[] = [
                $log->id,
                $log->username,
                $log->module,
                $log->action,
                $log->method,
                $log->url,
                $log->ip,
                $log->status_code,
                $log->status === 'success' ? '成功' : '失败',
                $log->error_message ?? '-',
                $log->execution_time,
                $log->created_at->format('Y-m-d H:i:s'),
            ];
        }

        $filename = '系统操作日志_' . date('YmdHis') . '.xlsx';

        return Excel::download(new GenericExport($headers, $data), $filename);
    }

    public function show(int $id)
    {
        $log = $this->logService->getById($id);
        if (!$log) {
            return response()->json([
                'code' => 404,
                'message' => '日志不存在',
                'data' => null
            ], 404);
        }

        return response()->json([
            'code' => 200,
            'message' => 'success',
            'data' => $log
        ]);
    }

    public function destroy(int $id)
    {
        $this->logService->delete($id);
        return response()->json([
            'code' => 200,
            'message' => '删除成功',
            'data' => null
        ]);
    }

    public function batchDelete(Request $request)
    {
        $this->logService->batchDelete($request->input('ids', []));
        return response()->json([
            'code' => 200,
            'message' => '批量删除成功',
            'data' => null
        ]);
    }

    public function clearLogs(Request $request)
    {
        $days = $request->input('days', 30);
        $this->logService->clearLogs($days);
        return response()->json([
            'code' => 200,
            'message' => '清理成功',
            'data' => null
        ]);
    }

    public function getStatistics(LogRequest $request)
    {
        $statistics = $this->logService->getStatistics($request->validated());
        return response()->json([
            'code' => 200,
            'message' => 'success',
            'data' => $statistics
        ]);
    }
}