﻿/*
   Copyright 2017 Shane Lillie

   Licensed under the Apache License, Version 2.0 (the "License");
   you may not use this file except in compliance with the License.
   You may obtain a copy of the License at

       http://www.apache.org/licenses/LICENSE-2.0

   Unless required by applicable law or agreed to in writing, software
   distributed under the License is distributed on an "AS IS" BASIS,
   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   See the License for the specific language governing permissions and
   limitations under the License.
*/

using System;
using System.Text;
using System.Threading.Tasks;

namespace EnergonSoftware.BackpackPlanner.Core.Util.Crypt
{
    /// <summary>
    /// MD5 digester
    /// </summary>
    //[Obsolete("Use SHA512 instead")]
    // ReSharper disable once InconsistentNaming
    public class MD5 : Hasher
    {
        public override async Task<byte[]> HashAsync(string value)
        {
            using(System.Security.Cryptography.MD5 hasher = System.Security.Cryptography.MD5.Create()) {
                // await is necessary here to avoid disposing of the hasher object
                // ReSharper disable once AccessToDisposedClosure
                return await Task.Run(() => hasher.ComputeHash(Encoding.UTF8.GetBytes(value))).ConfigureAwait(false);
            }
        }
    }
}
