using Microsoft.Extensions.Caching.Memory;

namespace DecoratorPattern;

public class CachedRepository : IRepository

{

private readonly IMemoryCache _memoryCache;

private readonly IRepository _repository;

public CachedRepository(IMemoryCache memoryCache, IRepository repository)

{

_memoryCache = memoryCache;

_repository = repository;

}

public async Task<Person> GetPersonByIdAsync(int id)

{

if (!_memoryCache.TryGetValue(id, out Person value))

{

value = await _repository.GetPersonByIdAsync(id);

_memoryCache.Set(id, value);

}

return value;

}

public Task SavePersonAsync(Person person)

{

return _repository.SavePersonAsync(person);

}

}