<?php

declare(strict_types=1);

namespace Domain\Models\ValueObjects;

use Domain\Enums\ProductBrand;
use Domain\Enums\TaxRate;
use Domain\Enums\Units\OrderUnit;
use Domain\Models\ValueObjects\Entities\ProductId;
use Money\Money;

final readonly class OrderLineProduct
{
    public function __construct(
        public IncoId $incoId,
        public ProductId $originalId,
        public string $name,
        public ProductWeight $weight,
        public ProductBrand $brand,
        public OrderUnit $orderUnit,
        public Money $price,
        public Money $discountedPrice,
        public Money $priceKgTtc,
        public TaxRate $taxRate,
        public ?string $picture = null
    ) {
        if (trim($name) === '') {
            throw new \DomainException('Product name cannot be empty');
        }
        if ($price->isNegative()) {
            throw new \DomainException('Product price cannot be negative');
        }
        if ($discountedPrice->isNegative()) {
            throw new \DomainException('Product discounted price cannot be negative');
        }
        if ($priceKgTtc->isNegative()) {
            throw new \DomainException('Price per kg TTC cannot be negative');
        }
        if ($discountedPrice->greaterThan($price)) {
            throw new \DomainException('Product discounted price cannot be greater than original price');
        }
        if (! $priceKgTtc->isPositive()) {
            throw new \DomainException('Price per kg TTC has to be positive');
        }
    }

    public static function fromBasketProduct(BasketProduct $item): self
    {
        return new self(
            incoId: $item->incoId ?? throw new \DomainException('incoId cannot be null for an order'),
            originalId: $item->id,
            name: $item->name,
            weight: new ProductWeight($item->weightGrams, $item->weightVariable),
            brand: $item->brand ?? ProductBrand::none,
            orderUnit: $item->orderUnit,
            price: clone $item->unitPriceHt,
            discountedPrice: $item->unitPriceDiscounted(),
            priceKgTtc: clone $item->priceKgTtc,
            taxRate: $item->taxRate,
            picture: $item->picture
        );
    }
}