<?php

namespace App\Models;

use App\Models\YiiModels\Drug;
use App\Models\YiiModels\DrugstoreDrug;
use App\Models\YiiModels\Store;
use Illuminate\Database\Eloquent\Relations\BelongsTo;

/**
 * App\Models\Cart
 *
 * @property int $id
 * @property int $user_id 用户ID
 * @property int $drug_id 药品ID
 * @property int $store_id 门店ID
 * @property int $qty 数量
 * @property string|null $join_at 加入时间
 * @property \Illuminate\Support\Carbon|null $created_at
 * @property \Illuminate\Support\Carbon|null $updated_at
 * @property-read \App\Models\YiiModels\Drug|null $drug 药品
 * @property-read string $created_at_format 创建时间的格式化
 * @property-read string $status_string 状态名称
 * @property-read string $updated_at_format 更新时间的格式化
 * @property-read \App\Models\YiiModels\Store|null $store 门店
 * @method static \Illuminate\Database\Eloquent\Builder|\App\Models\Cart newModelQuery()
 * @method static \Illuminate\Database\Eloquent\Builder|\App\Models\Cart newQuery()
 * @method static \Illuminate\Database\Eloquent\Builder|\App\Models\Cart query()
 * @mixin \Eloquent
 */
class Cart extends BaseModel
{
    protected $attributes = [
        'qty' => 0,
    ];

    protected static function boot()
    {
        parent::boot();
        parent::creating(function (self $model) {
            if (!isset($model->join_at) && !$model->join_at) {
                $model->join_at = now();
            }
        });
    }

    /**
     * @comment 药品
     *
     * @return BelongsTo
     */
    public function drug(): BelongsTo
    {
        return $this->belongsTo(Drug::class, 'drug_id');
    }

    /**
     * @comment 门店
     *
     * @return BelongsTo
     */
    public function store(): BelongsTo
    {
        return $this->belongsTo(Store::class, 'store_id');
    }
}