<?php

namespace app\Model;

use support\Model;

/**
 * 二手车PDF生成日志模型
 */
class UsedCarPdfLog extends Model
{
    protected $table = 'used_car_pdf_log';

    protected $fillable = [
        'user_id',
        'used_car_id',
        'price_snapshot',
        'pdf_path',
    ];

    protected $casts = [
        'price_snapshot' => 'integer',
        'created_at' => 'datetime',
        'updated_at' => 'datetime',
    ];

    /**
     * 关联用户
     */
    public function user()
    {
        return $this->belongsTo(User::class, 'user_id');
    }

    /**
     * 关联二手车
     */
    public function usedCar()
    {
        return $this->belongsTo(UsedCar::class, 'used_car_id');
    }

    /**
     * 作用域：按二手车筛选
     */
    public function scopeByUsedCar($query, int $usedCarId)
    {
        return $query->where('used_car_id', $usedCarId);
    }

    /**
     * 作用域：按用户筛选
     */
    public function scopeByUser($query, int $userId)
    {
        return $query->where('user_id', $userId);
    }
}