<?php

namespace App\Models;

use Slowlyo\OwlAdmin\Models\AdminUser;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\SoftDeletes;

/**
 * 系统异常记录模型
 */
class SystemException extends Model
{
    use SoftDeletes;

    protected $table = 'system_exceptions';

    protected $guarded = [];

    protected $casts = [
        'request_data' => 'json',
        'handled_at' => 'datetime',
        'status' => 'integer',
    ];

    /**
     * 状态常量
     */
    const STATUS_PENDING = 0;    // 未处理
    const STATUS_PROCESSING = 1;  // 处理中
    const STATUS_HANDLED = 2;     // 已处理
    const STATUS_IGNORED = 3;     // 已忽略

    /**
     * 获取状态文本
     *
     * @return string
     */
    public function getStatusTextAttribute(): string
    {
        return match ($this->status) {
            self::STATUS_PENDING => '未处理',
            self::STATUS_PROCESSING => '处理中',
            self::STATUS_HANDLED => '已处理',
            self::STATUS_IGNORED => '已忽略',
            default => '未知状态',
        };
    }

    /**
     * 获取处理人关联
     */
    public function handlerUser()
    {
        return $this->belongsTo(AdminUser::class, 'handler', 'name');
    }

    /**
     * 获取相关用户
     */
    public function user()
    {
        return $this->belongsTo(MemberUser::class, 'user_id');
    }

    /**
     * 创建异常记录
     *
     * @param \Throwable $exception 异常对象
     * @param array $requestData 请求数据
     * @param int|null $userId 用户ID
     * @return static
     */
    public static function createFromException(\Throwable $exception, array $requestData = [], ?int $userId = null): static
    {
        return static::create([
            'type' => get_class($exception),
            'message' => $exception->getMessage(),
            'file' => $exception->getFile(),
            'line' => $exception->getLine(),
            'trace' => $exception->getTraceAsString(),
            'request_data' => $requestData,
            'user_id' => $userId,
            'status' => self::STATUS_PENDING,
        ]);
    }

    /**
     * 标记为处理中
     *
     * @return bool
     */
    public function markAsProcessing(): bool
    {
        return $this->update(['status' => self::STATUS_PROCESSING]);
    }

    /**
     * 标记为已处理
     *
     * @param string $handler 处理人
     * @return bool
     */
    public function markAsHandled(string $handler): bool
    {
        return $this->update([
            'status' => self::STATUS_HANDLED,
            'handler' => $handler,
            'handled_at' => now(),
        ]);
    }

    /**
     * 标记为已忽略
     *
     * @param string $handler 处理人
     * @return bool
     */
    public function markAsIgnored(string $handler): bool
    {
        return $this->update([
            'status' => self::STATUS_IGNORED,
            'handler' => $handler,
            'handled_at' => now(),
        ]);
    }

    /**
     * 更新AI解决方案
     *
     * @param string $solution AI提供的解决方案
     * @return bool
     */
    public function updateSolution(string $solution): bool
    {
        return $this->update(['solution' => $solution]);
    }

    /**
     * 获取未处理的异常
     *
     * @param int $limit 限制数量
     * @return \Illuminate\Database\Eloquent\Collection
     */
    public static function getPending(int $limit = 10)
    {
        return static::where('status', self::STATUS_PENDING)
            ->latest()
            ->limit($limit)
            ->get();
    }

    /**
     * 获取处理中的异常
     *
     * @param int $limit 限制数量
     * @return \Illuminate\Database\Eloquent\Collection
     */
    public static function getProcessing(int $limit = 10)
    {
        return static::where('status', self::STATUS_PROCESSING)
            ->latest()
            ->limit($limit)
            ->get();
    }
}