<?php

namespace App\Models;

use App\Helpers\Numeric;
use EloquentFilter\Filterable;
use Illuminate\Database\Eloquent\Model;

class Order extends Model
{
    use Filterable;

    public const STATUS_PENDING = 0;     // 待付款
    public const STATUS_PAID = 1;        // 已付款
    public const STATUS_SHIPPED = 2;     // 已发货
    public const STATUS_COMPLETED = 9;   // 已完成
    public const STATUS_CANCELLED = 10;  // 已取消

    /**
     * @var array
     */
    protected $attributes = [
        'reduced_amount' => 0,
        'status' => self::STATUS_PENDING,
    ];

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

    /**
     * @var array
     */
    protected $fillable = [
        'user_id',
        'sn',
        'coupon_disount_amount',
        'vip_disount_amount',
        'reduced_amount',
        'shipping_fee',
        'products_total_amount',
        'total_amount',
        'note',
        'remark',
        'pay_sn',
        'pay_way',
        'pay_at',
        'consignee_name',
        'consignee_telephone',
        'consignee_zone',
        'consignee_address',
        'status',
        'completed_at',
    ];

    /**
     * 属于此订单的商品
     */
    public function products()
    {
        return $this->hasMany(OrderProduct::class);
    }

    /**
     * 确认此订单是否可以被确认
     *
     * @return bool
     */
    public function isConfirmable(): bool
    {
        return in_array($this->status, [static::STATUS_PAID, static::STATUS_SHIPPED]);
    }

    /**
     * 确认此订单是否可以被取消
     *
     * @return bool
     */
    public function isCancelable(): bool
    {
        return in_array($this->status, [static::STATUS_PENDING, static::STATUS_PAID]);
    }

    /**
     * 获取订单支付金额
     *
     * @return string
     */
    public function getTotalAmountFormatAttribute()
    {
        return Numeric::trimTrailingZero(bcdiv($this->attributes['total_amount'], 100, 2));
    }

    /**
     * 待支付订单过期时间
     *
     * @return int
     */
    public function getExpiresAtAttribute()
    {
        // todo 待支付订单过期时间

        return 3600;
    }
}