<?php

namespace App\Models;

use App\Casts\JsonArray;
use App\Casts\Price;
use App\Endpoint\Api\Filters\ProductSkuFilter;
use Dcat\Admin\Traits\HasDateTimeFormatter;
use Illuminate\Database\Eloquent\Model;
use EloquentFilter\Filterable;

class ProductSpu extends Model
{
    use HasDateTimeFormatter;
    use Filterable;

    /**
     * @var array
     */
    protected $attributes = [
        'weight' => 0,
        'stock' => 0,
        'sales' => 0,
    ];

    /**
     * @var array
     */
    protected $casts = [
        'images' => JsonArray::class,
        // 'sell_price' => Price::class,
        // 'market_price' => Price::class,
        // 'cost_price' => Price::class,
        // 'vip_price' => Price::class,
        'attrs' => JsonArray::class,
        'release_at' => 'datetime',
    ];

    /**
     * @var array
     */
    protected $fillable = [
        'name',
        'subtitle',
        'category_id',
        'codcovere',
        'images',
        'sell_price',
        'market_price',
        'cost_price',
        'vip_price',
        'media',
        'weight',
        'attrs',
        'stock',
        'sales',
        'release_at',
        'sales_value',
        'cover',
        'description',
        'is_pre_sale',
    ];

    public function modelFilter()
    {
        return ProductSkuFilter::class;
    }

    public function skus()
    {
        return $this->hasMany(ProductSku::class, 'spu_id');
    }

    public function specs()
    {
        return $this->hasMany(ProductSpuSpec::class, 'spu_id');
    }

    public function features()
    {
        return $this->belongsToMany(ProductFeature::class, 'product_spu_features', 'feature_id', 'spu_id');
    }

    /**
     * 确认此主商品是否有 sku
     *
     * @return bool
     */
    public function hasSku(): bool
    {
        return $this->skus()->exists();
    }

    /**
     * 获取商品售价
     *
     * @return string
     */
    public function getSellPriceFormatAttribute()
    {
        return bcdiv($this->attributes['sell_price'], 100, 2);
    }

    /**
     * 获取商品会员价
     *
     * @return string
     */
    public function getVipPriceFormatAttribute()
    {
        if (is_null($price = $this->attributes['vip_price'])) {
            return '';
        }

        return bcdiv($price, 100, 2);
    }

    /**
     * 获取商品市场价
     *
     * @return string
     */
    public function getMarketPriceFormatAttribute()
    {
        if (is_null($price = $this->attributes['market_price'])) {
            return '';
        }

        return bcdiv($price, 100, 2);
    }
}