<?php

namespace App\Komma\Shop\Orders\Product;

use App\Komma\Kms\Core\Attributes\Models\Traits\HasThumbnailInterface;
use App\Komma\Kms\Core\Attributes\Models\Traits\HasThumbnailTrait;
use App\Komma\Shop\Discounts\DiscountableInterface;
use App\Komma\Shop\Discounts\Discount;
use App\Komma\Shop\Orders\Models\Order;
use App\Komma\Shop\Orders\OrderedProductableInterface;
use App\Komma\Shop\Orders\ProductGroup\OrderedProductGroup;
use App\Komma\Shop\Products\Product\Product;
use App\Komma\Shop\Vat\VatServiceInterface;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Relations\BelongsTo;
use Illuminate\Database\Eloquent\Relations\BelongsToMany;
use Illuminate\Database\Eloquent\Relations\MorphTo;
use App\Komma\Shop\Discounts\Actions\ModifyPriceAction;

/**
 * Represents a basic ordered product that a user did order.
 * 
 * Use the product method to get the product this orderedProduct was based of.
 * 
 * Class Product
 *
 * @package App
 * @property int $id
 * @property int $order_id
 * @property int $product_id
 * @property int $active
 * @property string $title
 * @property int $price Total price with discounts applied
 * @property string $stock_keeping_unit
 * @property int $quantity Total amount with discounts applied
 * @property string $discount Applied discount information. Example: 10% + 1 for free. Product level only
 * @property \Carbon\Carbon|null $created_at
 * @property \Carbon\Carbon|null $updated_at
 * @property-read \App\Komma\Shop\Orders\Models\Order $order
 * @property-read \Illuminate\Database\Eloquent\Collection|\App\Komma\Shop\Orders\ProductGroup\OrderedProductGroup[] $orderedGroups
 * @property-read \App\Komma\Shop\Products\Product\Product $product
 * @method static \Illuminate\Database\Eloquent\Builder|\App\Komma\Shop\Orders\Product\OrderedProduct whereActive($value)
 * @method static \Illuminate\Database\Eloquent\Builder|\App\Komma\Shop\Orders\Product\OrderedProduct whereCreatedAt($value)
 * @method static \Illuminate\Database\Eloquent\Builder|\App\Komma\Shop\Orders\Product\OrderedProduct whereDiscount($value)
 * @method static \Illuminate\Database\Eloquent\Builder|\App\Komma\Shop\Orders\Product\OrderedProduct whereId($value)
 * @method static \Illuminate\Database\Eloquent\Builder|\App\Komma\Shop\Orders\Product\OrderedProduct whereOrderId($value)
 * @method static \Illuminate\Database\Eloquent\Builder|\App\Komma\Shop\Orders\Product\OrderedProduct wherePrice($value)
 * @method static \Illuminate\Database\Eloquent\Builder|\App\Komma\Shop\Orders\Product\OrderedProduct whereProductId($value)
 * @method static \Illuminate\Database\Eloquent\Builder|\App\Komma\Shop\Orders\Product\OrderedProduct whereQuantity($value)
 * @method static \Illuminate\Database\Eloquent\Builder|\App\Komma\Shop\Orders\Product\OrderedProduct whereStockKeepingUnit($value)
 * @method static \Illuminate\Database\Eloquent\Builder|\App\Komma\Shop\Orders\Product\OrderedProduct whereTitle($value)
 * @method static \Illuminate\Database\Eloquent\Builder|\App\Komma\Shop\Orders\Product\OrderedProduct whereUpdatedAt($value)
 * @mixin \Eloquent
 * @property string $video
 * @method static \Illuminate\Database\Eloquent\Builder|\App\Komma\Shop\Orders\Product\OrderedProduct newModelQuery()
 * @method static \Illuminate\Database\Eloquent\Builder|\App\Komma\Shop\Orders\Product\OrderedProduct newQuery()
 * @method static \Illuminate\Database\Eloquent\Builder|\App\Komma\Shop\Orders\Product\OrderedProduct query()
 * @method static \Illuminate\Database\Eloquent\Builder|\App\Komma\Shop\Orders\Product\OrderedProduct whereVideo($value)
 */
class OrderedProduct extends Model implements HasThumbnailInterface, OrderedProductableInterface
{
    use HasThumbnailTrait;

    /** @var Discount[] $discounts  */
    private $discounts = [];

    /**
     * The attributes that are mass assignable.
     *
     * @var array
     */
    protected $fillable = ['active', 'price', 'price_excluding_vat', 'custom_vatrate', 'stock_keeping_unit', 'quantity', 'discount'];

    /**
     * Return the order or product group this ordered product belongs to
     *
     * @see Order
     * @see OrderedProductGroup
     * @return MorphTo
     */
    public function orderable(): MorphTo
    {
        return $this->morphTo();
    }

    /**
     * Return the product
     *
     * @return BelongsTo
     */
    public function product():BelongsTo
    {
        return $this->belongsTo(Product::class);
    }

    /**
     * Return the groups
     *
     * @return BelongsToMany
     */
    public function orderedGroups()
    {
        return $this->belongsToMany(OrderedProductGroup::class);
    }

    /**
     * Price is in cents
     *
     * @return int
     */
    public function getPrice(): int
    {
        return $this->price;
    }

    /**
     * Returns the total of all product prices. This value is in cents.
     * And may be a float (e.g. value in cents with decimals)
     * @param  bool  $includeDiscounts
     * @return float
     * @throws \Illuminate\Contracts\Container\BindingResolutionException
     */
    public function getTotal(bool $includeDiscounts = true): float
    {
        $price = $this->quantity * $this->price;

        if($includeDiscounts && $this->discounts)
        {
            foreach($this->discounts as $discount)
            {
                $action = $discount->getDiscountAction();
                switch (get_class($action))
                {
                    case ModifyPriceAction::class;
                        $price = $action->do($price);
                        break;
                }
            }
        }

        return $price;
    }

    /**
     * Applies the discount to itself
     *
     * @param Discount $discount
     * @return DiscountableInterface
     */
    public function applyDiscount(Discount $discount): DiscountableInterface
    {
        $this->discounts = [];
    }
}