<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Model;

class PayLog extends Model
{
    /**
     * 支付状态
     */
    public const STATUS_PENDING = 0;     // 待付款
    public const STATUS_SUCCESS = 1;        // 成功
    public const STATUS_FAILED = 2;   // 失败

    /**
     * 支付方式
     */
    public const PAY_WAY_WXPAY = 'wxpay';       // 微信支付
    public const PAY_WAY_ALIPAY = 'alipay';     // 支付宝

    /**
     * @var array
     */
    protected $attributes = [
        'status' => self::STATUS_PENDING,
    ];

    /**
     * @var array
     */
    protected $casts = [
        'pay_at' => 'datetime',
    ];

    /**
     * @var array
     */
    protected $fillable = [
        'pay_sn',
        'pay_way',
        'pay_at',
        'out_trade_no',
        'status',
        'failed_reason',
    ];

    /**
     * 获取支付记录所属的模型
     */
    public function payable()
    {
        return $this->morphTo();
    }

    /**
     * 获取支付记录是否是待付款
     */
    public function isPending()
    {
        return $this->status === static::STATUS_PENDING;
    }
}