<?php

namespace App\Endpoint\Api\Http\Resources;

use Illuminate\Http\Resources\Json\JsonResource;

class ShoppingCartItemResource extends JsonResource
{
    /**
     * Transform the resource into an array.
     *
     * @param  \Illuminate\Http\Request  $request
     * @return array|\Illuminate\Contracts\Support\Arrayable|\JsonSerializable
     */
    public function toArray($request)
    {
        return [
            'id' => $this->id,
            'sku' => $this->when($this->relationLoaded('sku') && $this->sku, function () {
                return [
                    'id' => $this->sku->id,
                    'name' => $this->sku->name,
                    'cover' => (string) $this->sku->cover,
                    'sell_price' => $this->sku->sell_price,
                    'vip_price' => (string) $this->sku->vip_price,
                    'specs' => array_values((array) $this->sku->specs),
                    'stock' => (int) $this->sku->saleable_stock,
                    'is_online' => $this->sku->isOnline(),
                ];
            }, [
                'id' => $this->id,
                'name' => $this->name,
                'cover' => (string) $this->cover,
                'sell_price' => $this->sell_price,
                'vip_price' => (string) $this->vip_price,
                'specs' => array_values((array) $this->specs),
                'stock' => 0,
                'is_online' => false,
            ]),
            'quantity' => $this->quantity,
        ];
    }
}