// src/Webshop.Infrastructure/Repositories/ProductRepository.cs
using Microsoft.EntityFrameworkCore; // Wichtig für ToListAsync, FindAsync etc.
using Webshop.Domain.Entities;
using Webshop.Domain.Interfaces;
using Webshop.Infrastructure.Data;
using System; // Für Guid
using System.Collections.Generic;
using System.Threading.Tasks;

namespace Webshop.Infrastructure.Repositories
{
    public class ProductRepository : IProductRepository // ACHTUNG: Hier muss das Interface stehen
    {
        private readonly ApplicationDbContext _context;

        public ProductRepository(ApplicationDbContext context)
        {
            _context = context;
        }

        // --- IMPLEMENTIERUNG DER IProductRepository METHODEN ---

        public async Task<IEnumerable<Product>> GetAllProductsAsync()
        {
            return await _context.Products.ToListAsync();
        }

        public async Task<Product?> GetProductByIdAsync(Guid id)
        {
            return await _context.Products.FindAsync(id);
        }

        public async Task AddProductAsync(Product product)
        {
            _context.Products.Add(product);
            await _context.SaveChangesAsync(); // Änderungen in der DB speichern
        }

        public async Task UpdateProductAsync(Product product)
        {
            _context.Products.Update(product);
            await _context.SaveChangesAsync();
        }

        public async Task DeleteProductAsync(Guid id)
        {
            var product = await _context.Products.FindAsync(id); // Produkt zuerst finden
            if (product != null)
            {
                _context.Products.Remove(product); // Produkt entfernen
                await _context.SaveChangesAsync(); // Änderungen speichern
            }
        }
    }
}