<?php

namespace App\Models;

use Dcat\Admin\Traits\HasDateTimeFormatter;
use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;

class OfflineOrderItem extends Model
{
    use HasFactory, HasDateTimeFormatter;

    protected $attributes = [
        'discount_reduction_amount' => 0,
        'points_deduction_amount' => 0,
    ];

    protected $fillable = [
        'order_id',
        'product_category_id',
        'products_total_amount',
        'discount_reduction_amount',
        'points_deduction_amount',
        'payment_amount',
    ];

    public function order()
    {
        return $this->belongsTo(OfflineOrder::class, 'order_id');
    }

    public function productCategory()
    {
        return $this->belongsTo(OfflineProductCategory::class, 'product_category_id');
    }

    public function getDiscount()
    {
        $discount = '';

        if ($this->discount_reduction_amount > 0 && $this->products_total_amount > 0) {
            // 应付金额
            $total = $this->products_total_amount - $this->discount_reduction_amount;

            $discount = round(bcdiv($total * 10, $this->products_total_amount, 3), 2);
        }

        return $discount;
    }
}