app/Repositories/CartRepository.php - master - itp_practice/itp_backend

app/Repositories/CartRepository.php
184 строки4 KB
vivanenko
fix taps and others structure
27 май 2025, 18:06
27 май 2025, 18:068cdc7d9
<?php

namespace App\Repositories;

use App\Contracts\CartRepositoryInterface;
use App\Models\Cart;
use App\Models\CartItem;
use App\Models\Tariff;
use Illuminate\Database\Eloquent\Collection;

class CartRepository implements CartRepositoryInterface
{
    /**
     * Get or create cart for user
     */
    public function getOrCreateCart(int $userId): Cart
    {
        return Cart::firstOrCreate(['user_id' => $userId]);
    }

    /**
     * Get cart by user ID
     */
    public function getCartByUserId(int $userId): ?Cart
    {
        return Cart::where('user_id', $userId)->with('items.itemable')->first();
    }

    /**
     * Add tariff to cart
     */
    public function addTariffToCart(int $userId, Tariff $tariff, int $quantity = 1): CartItem
    {
        $cart = $this->getOrCreateCart($userId);

        // Check if tariff already exists in cart
        $existingItem = $this->getCartItem($userId, $tariff->id);
        
        if ($existingItem) {
            // If exists, increase quantity
            $existingItem->increment('quantity', $quantity);
            return $existingItem->fresh();
        }

        // Create new cart item
        $sku = CartItem::generateSku(Tariff::class, $tariff->id);
        
        $cartItem = CartItem::create([
            'user_id' => $userId,
            'cart_id' => $cart->id,
            'sku' => $sku,
            'price' => $tariff->getPrice(),
            'quantity' => $quantity,
            'itemable_type' => Tariff::class,
            'itemable_id' => $tariff->id,
            'currency' => 'RUB',
        ]);

        return $cartItem;
    }

    /**
     * Remove tariff from cart
     */
    public function removeTariffFromCart(int $userId, int $tariffId): bool
    {
        $cartItem = $this->getCartItem($userId, $tariffId);
        
        if (!$cartItem) {
            return false;
        }

        return $cartItem->delete();
    }

    /**
     * Update tariff quantity in cart
     */
    public function updateTariffQuantity(int $userId, int $tariffId, int $quantity): bool
    {
        $cartItem = $this->getCartItem($userId, $tariffId);
        
        if (!$cartItem) {
            return false;
        }

        if ($quantity <= 0) {
            return $cartItem->delete();
        }

        return $cartItem->update(['quantity' => $quantity]);
    }

    /**
     * Get cart items for user
     */
    public function getCartItems(int $userId): Collection
    {
        $cart = $this->getCartByUserId($userId);
        
        if (!$cart) {
            return new Collection();
        }

        return $cart->items;
    }

    /**
     * Calculate total cart price (with discounts)
     */
    public function calculateCartTotal(int $userId): float
    {
        $cart = $this->getCartByUserId($userId);
        
        if (!$cart) {
            return 0.0;
        }

        $totals = $cart->getTotalWithDiscounts();
        return $totals['total'];
    }

    /**
     * Calculate cart subtotal (without discounts)
     */
    public function calculateCartSubtotal(int $userId): float
    {
        $cart = $this->getCartByUserId($userId);
        
        if (!$cart) {
            return 0.0;
        }

        return $cart->getTotalAmount();
    }

    /**
     * Clear cart for user
     */
    public function clearCart(int $userId): bool
    {
        $cart = $this->getCartByUserId($userId);
        
        if (!$cart) {
            return true;
        }

        return $cart->clear();
    }

    /**
     * Get cart item by user and tariff
     */
    public function getCartItem(int $userId, int $tariffId): ?CartItem
    {
        return CartItem::where('user_id', $userId)
            ->where('itemable_type', Tariff::class)
            ->where('itemable_id', $tariffId)
            ->whereNotNull('cart_id')
            ->first();
    }

    /**
     * Check if tariff exists in cart
     */
    public function hasTariffInCart(int $userId, int $tariffId): bool
    {
        return $this->getCartItem($userId, $tariffId) !== null;
    }

    /**
     * Get cart items count
     */
    public function getCartItemsCount(int $userId): int
    {
        $cart = $this->getCartByUserId($userId);
        
        if (!$cart) {
            return 0;
        }

        return $cart->getItemsCount();
    }
}