using System;
using System.Threading.Tasks;

namespace Sony.Filtr.Functional
{
    public static class IdentityExtensions
    {
        public static Identity<T> ToIdentity<T>(this T value) => new Identity<T>(value);

        public static Identity<TToType> Bind<TFromType, TToType>(this Identity<TFromType> @this, Func<TFromType, TToType> f) => f(@this.Value).ToIdentity();

        public static async Task<Identity<TToType>> BindAsync<TFromType, TToType>(this Identity<TFromType> @this, Func<TFromType, Task<TToType>> f)
        {
            return await f(@this.Value);
        }
    }
}