using GameData.Repository;
using GameModel;
using GameModel.Contract;
using Microsoft.Extensions.Caching.Memory;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Runtime.Caching;
using System.Text;
using System.Threading.Tasks;

namespace GameData.CacheProxy
{
    /// <summary>
    /// cache for repository data, implemented as proxy not as decorator https://www.youtube.com/watch?v=nmAE-JzNSEw
    /// </summary>
    public class CachedExpenseRepository : IExpenseRepository
    {
        IMemoryCache _cache;
        ExpenseRepository _repository;

        public CachedExpenseRepository(ExpenseRepository repository, IMemoryCache cache) 
        { 
            _repository = repository;
            _cache = cache;
        }

        public Task Delete(IEnumerable<PlayerExpense> enumerable)
        {
            return _repository.Delete(enumerable);
        }

        public Task<IEnumerable<Expense>> GetAll()
        {
            return _cache.GetOrCreateAsync("allexpenses", factory => _repository.GetAll());
        }

        public Task<PlayerExpense> Save(PlayerExpense data)
        {
            return _repository.Save(data);
        }
    }
}