<?php

namespace App\Http\Controllers\Fo;

use App\Enums\Product\WeightUnit;
use App\Http\Controllers\Controller;
use App\Lib\Helpers\ToolboxHelper;
use App\Models\Merchandise\Product;
use Gloudemans\Shoppingcart\CartItem;
use Illuminate\Validation\ValidationException;

class BasketController extends Controller
{
    /**
     * Get Basket
     *
     * @return \Illuminate\Http\JsonResponse
     */
    public function getBasket()
    {
        $this->authorize('useBasketSystem', Product::class);
        /** @var \Gloudemans\Shoppingcart\Cart */
        $basket = app('basket');

        return \response()->json(ToolboxHelper::cartToList($basket));
    }

    /**
     * Ajout d'un produit au panier
     *
     * ! Assert Model found, status true and orderable true.
     *
     * @param \App\Models\Merchandise\Product $product
     * @return \Illuminate\Http\JsonResponse
     * @throws \Illuminate\Validation\ValidationException Si le produit n'est pas disponible (orderable).
     */
    public function addToBasket(Product $product)
    {
        $this->authorize('useBasketSystem', Product::class);
        $this->authorize('addToCart', $product);

        /** @var \Gloudemans\Shoppingcart\Cart */
        $basket = app('basket');

        $basket = $this->filterBasketKeepOnlyOrderableItems($basket);

        if (!$product->status or !$product->orderable) {
            throw ValidationException::withMessages([
                'error' => \trans('Ce produit n\'est plus disponible')
            ]);
        }

        $cartItemOptions = [
            'reference' => $product->reference,
            'slug' => $product->slug,
            'picture' => $product->picture,
            'sell_unit' => $product->sell_unit,
            'weight_with_unit' => WeightUnit::getDisplayableWeight($product->weight),
            // * Prix ttc du produit
            'price_ttc' => $product->price_ttc,
            // * Prix ttc du produit remisé
            'undiscounted_price_ttc' => $product->undiscounted_price_ttc,
            'tax_rate' => $product->tax_rate->rate,
            'discount_type' => \optional(\optional($product->discount)->type)->value,
            'discount_rate' => $product->discount_rate,
        ];

        $cartItem = CartItem::fromBuyable($product, $cartItemOptions);
        $cartItem->setQuantity(1);
        $cartItem->associate($product);
        // * Validate Cart Item.
        $jsonCartObject = \json_decode($cartItem->toJson());
        if (!ToolboxHelper::basketObjectIsValid($jsonCartObject)) {
            throw ValidationException::withMessages([
                'error' => \trans('Cart item is not valid')
            ]);
        }
        $basket->addCartItem($cartItem);

        // ! https://github.com/bumbummen99/LaravelShoppingcart/pull/181
        // * Note Lib is is actually refactoring for laravel 9 php8  only
        // * https://github.com/bumbummen99/LaravelShoppingcart/pull/145
        // ! These lines are required to prevent amount bug (after adding to basket).
        // ! This because of the cart calculator I guess.
        $cartItem->setTaxRate($product->tax_rate->rate / 100);
        $cartItem->setDiscountRate($product->discount_rate);

        return \response()->json(ToolboxHelper::cartToList($basket));
    }

    /**
     * Retrait d'un produit du panier (1 quantité d'1 type)
     *
     * @param \App\Models\Merchandise\Product $product
     * @return \Illuminate\Http\JsonResponse
     */
    public function removeFromBasket(Product $product)
    {
        $this->authorize('useBasketSystem', Product::class);

        /** @var \Gloudemans\Shoppingcart\Cart */
        $basket = app('basket');

        /** @var \Gloudemans\Shoppingcart\CartItem|null */
        $basketItem = $basket->content()->where('id', $product->id)->first();

        /** @var string|null */
        $rowId = \optional($basketItem)->rowId;
        /** @var integer|null */
        $qty = \optional($basketItem)->qty;

        if ($rowId and !\is_null($qty)) {
            $basket->update($rowId, $qty - 1);
        }

        $basket = $this->filterBasketKeepOnlyOrderableItems($basket);

        return \response()->json(ToolboxHelper::cartToList($basket));
    }

    /**
     * Retrait d'un type produit du panier (toute les quantités d'1 type)
     *
     * @param \App\Models\Merchandise\Product $product
     * @return \Illuminate\Http\JsonResponse
     */
    public function removeItemTypeFromBasket(Product $product)
    {
        $this->authorize('useBasketSystem', Product::class);

        /** @var \Gloudemans\Shoppingcart\Cart */
        $basket = app('basket');

        /** @var \Gloudemans\Shoppingcart\CartItem|null */
        $basketItem = $basket->content()->where('id', $product->id)->first();

        /** @var string|null */
        $rowId = \optional($basketItem)->rowId;

        if ($rowId) {
            $basket->remove($rowId);
        }

        $basket = $this->filterBasketKeepOnlyOrderableItems($basket);

        return \response()->json(ToolboxHelper::cartToList($basket));
    }

    /**
     * Retrait d'un type produit du panier (toute les quantités d'1 type)
     *
     * @return \Illuminate\Http\JsonResponse
     */
    public function emptyBasket()
    {
        $this->authorize('useBasketSystem', Product::class);

        /** @var \Gloudemans\Shoppingcart\Cart */
        $basket = app('basket');

        $basket->destroy();

        /** @var \Gloudemans\Shoppingcart\Cart */
        $basket = app('basket');

        return \response()->json(ToolboxHelper::cartToList($basket));
    }
}