<?php

namespace App\Providers;

use Illuminate\Database\Events\QueryExecuted;
use Illuminate\Support\Facades\DB;
use Illuminate\Support\Facades\Log;
use Illuminate\Support\ServiceProvider;

class AppServiceProvider extends ServiceProvider
{
    /**
     * Register any application services.
     */
    public function register(): void
    {
        //
    }

    /**
     * Bootstrap any application services.
     */
    public function boot(): void
    {
        $this->setupSlowQueryLogging();
    }

    /**
     * 设置慢查询日志记录
     */
    private function setupSlowQueryLogging(): void
    {
        try {
            DB::listen(function (QueryExecuted $query) {
                $this->logSlowQuery($query);
            });
        } catch (\Exception $e) {
            // 如果SQL日志系统初始化失败，记录到默认日志但不影响主要业务

        }
    }


    /**
     * 记录慢查询
     */
    private function logSlowQuery(QueryExecuted $query): void
    {
        try {
            // 根据环境设置不同的慢查询阈值, 本地环境所有查询都记录， 正式环境慢查询阈值500ms
            $slowQueryThreshold = $this->app->environment(['local','development']) ? 0 : 500;

            // 只记录慢查询
            if ($query->time > $slowQueryThreshold) {
                Log::channel('sql')->info('Slow Query: ' . $query->sql, [
                    'bindings' => $query->bindings,
                    'time' => $query->time . 'ms',
                    'environment' => $this->app->environment()
                ]);
            }
        } catch (\Exception $e) {
            // 慢查询日志记录失败，降级处理
            Log::error('慢查询日志记录失败', [
                'query' => $query->sql,
                'bindings' => $query->bindings,
                'time' => $query->time . 'ms'
            ]);
        }
    }
}