<?php

declare(strict_types=1);

namespace Domain\Services;

use Domain\Models\Entities\Basket;
use Domain\Models\ValueObjects\Entities\BasketId;
use Domain\Models\ValueObjects\Entities\ProductId;
use Domain\Ports\Repositories\BasketRepository;
use Domain\Ports\Repositories\ProductRepository;
use Domain\Ports\Services\SessionService;

class BasketService
{
    public function __construct(
        private readonly BasketRepository $repository,
        private readonly ProductRepository $productRepository,
        private readonly SessionService $sessionService
    ) {
    }

    public function getBasket(): Basket
    {
        $basketId = $this->getBasketId();

        return $this->repository->find($basketId) ?? new Basket($basketId, []);
    }

    public function add(ProductId $productId, int $qty = 1): void
    {
        $basketProduct = $this->productRepository->getBasketProduct($productId, $qty);
        $basket        = $this->getBasket();

        $basket->addOrUpdate($basketProduct);

        $this->repository->persist($basket);
    }

    public function remove(ProductId $productId, int $qty = 1): void
    {
        $basket = $this->getBasket();
        $basket->remove($productId, $qty);

        $this->repository->persist($basket);
    }

    public function removeLine(ProductId $productId): void
    {
        $basket = $this->getBasket();
        $basket->removeLine($productId);

        $this->repository->persist($basket);
    }

    public function revalidateBasket(Basket $basket): Basket
    {
        $refreshedItems = [];

        foreach ($basket->items() as $item) {
            $refreshedItems[] = $this->productRepository->getBasketProduct($item->id, $item->qty);
        }

        $refreshedBasket = new Basket($basket->id, $refreshedItems);
        $this->repository->persist($refreshedBasket);

        return $refreshedBasket;
    }

    public function empty(): void
    {
        $this->repository->delete($this->getBasket());
    }

    private function getBasketId(): BasketId
    {
        $sessionId = $this->sessionService->get();

        return new BasketId($sessionId->value);
    }
}