using System;

using System.Linq;

using System.Linq.Expressions;



namespace Gradebook.Contracts.Repositories

{

    public interface IRepository<TEntity, in TKey>

        where TEntity : class

    {

        // CRUD functions

        void Create(TEntity entity);

        TEntity Read(TKey id);

        void Update(TEntity entity);

        void Delete(TEntity entity);



        // Additional functions

        IQueryable<TEntity> Get(

            Expression<Func<TEntity, bool>> filter = null,

            Func<IQueryable<TEntity>, IOrderedQueryable<TEntity>> orderBy = null,

            string includeProperties = "");

        IQueryable<TEntity> GetAll();

        bool TryRead(TKey id, out TEntity entity);

        void Delete(TKey id);

        long Count();

        bool Contains(TKey id);

    }



    public interface IRepository<TEntity> : IRepository<TEntity, int>

        where TEntity : class { }



    public interface IRepositoryBase<TEntity> : IRepository<TEntity, object>

        where TEntity : class { }

}