<?php

namespace App\Module\System\Models;

use UCore\ModelCore;

/**
 * 失败队列任务模型
 *
 * field start 
 * @property  int  $id  
 * @property  string  $uuid  
 * @property  string  $connection  
 * @property  string  $queue  
 * @property  array  $payload  
 * @property  string  $exception  
 * @property  \Carbon\Carbon  $failed_at  
 * field end
 *
 */
class FailedJob extends ModelCore
{
    protected $table = 'failed_jobs';
    
    public $timestamps = false;

    protected $fillable = [
        'uuid',
        'connection',
        'queue',
        'payload',
        'exception',
        'failed_at'
    ];

    protected $casts = [
        'payload' => 'array',
        'failed_at' => 'datetime'
    ];

    protected $appends = [
        'queue_name',
        'connection_name',
        'job_class',
        'exception_class',
        'exception_message',
        'failed_at_formatted',
        'exception_stack_trace'
    ];

    // attrlist start 
    protected $fillable = [
        'id',
        'uuid',
        'connection',
        'queue',
        'payload',
        'exception',
        'failed_at',
    ];
    // attrlist end

    /**
     * 获取队列名称访问器
     */
    public function getQueueNameAttribute(): string
    {
        return $this->queue ?? 'default';
    }

    /**
     * 获取连接名称访问器
     */
    public function getConnectionNameAttribute(): string
    {
        return $this->connection ?? 'default';
    }

    /**
     * 获取任务类名
     */
    public function getJobClassAttribute(): string
    {
        if (!$this->payload) {
            return '';
        }
        
        $payload = is_array($this->payload) ? $this->payload : json_decode($this->payload, true);
        return $payload['displayName'] ?? $payload['job'] ?? '';
    }

    /**
     * 获取异常类名
     */
    public function getExceptionClassAttribute(): string
    {
        if (!$this->exception) {
            return '';
        }
        
        // 从异常信息中提取异常类名
        if (preg_match('/^([^\s:]+)/', $this->exception, $matches)) {
            return $matches[1];
        }
        
        return '';
    }

    /**
     * 获取异常消息
     */
    public function getExceptionMessageAttribute(): string
    {
        if (!$this->exception) {
            return '';
        }
        
        // 从异常信息中提取异常消息
        $lines = explode("\n", $this->exception);
        if (count($lines) > 0) {
            // 第一行通常包含异常类和消息
            $firstLine = $lines[0];
            if (strpos($firstLine, ':') !== false) {
                return trim(substr($firstLine, strpos($firstLine, ':') + 1));
            }
        }
        
        return '';
    }

    /**
     * 获取格式化的失败时间
     */
    public function getFailedAtFormattedAttribute(): string
    {
        return $this->failed_at ? $this->failed_at->format('Y-m-d H:i:s') : '';
    }

    /**
     * 获取异常堆栈跟踪（前几行）
     */
    public function getExceptionStackTraceAttribute(): string
    {
        if (!$this->exception) {
            return '';
        }
        
        $lines = explode("\n", $this->exception);
        // 返回前5行堆栈跟踪
        return implode("\n", array_slice($lines, 0, 5));
    }
}