using System;
using System.Collections.Generic;
using System.Linq;
using Sakalou.Module._9.OnlineShop;
using Exceptions;

namespace DataAccess
{
    public class RepositoryDictionary : IRepository<Product>
    {
        private readonly Dictionary<int, Product> _data;

        public RepositoryDictionary(Dictionary<int, Product> data)
        {
            _data = data;
        }

        public void Create(Product obj)
        {
            _data.Add(obj.Id, obj);
        }

        public Product Read(int id)
        {
            return _data[id];
        }

        public void Update(Product obj)
        {
            if (!_data.ContainsValue(obj))
            {
                throw new NoItemException("There is no item with this id in data base");
            }
        }

        public void Delete(int id)
        {
            try
            {
                _data.Remove(id);
            }
            catch (KeyNotFoundException e)
            {
                throw new NoItemException("There is no item with this id in data base", e);
            }

        }
    }
}