﻿//----------------------------------------------------------------------
// Copyright (c) Microsoft Open Technologies, Inc.
// All Rights Reserved
// Apache License 2.0
//
// 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.Globalization;

namespace Sandboxable.Microsoft.IdentityModel.Clients.ActiveDirectory
{
    internal static class DateTimeHelper
    {
        public static long ConvertToTimeT(DateTime time)
        {
            var startTime = new DateTime(1970, 1, 1, 0, 0, 0, 0);
            var diff = time - startTime;

            return (long)diff.TotalSeconds;
        }

        public static DateTime ConvertFromTimeT(long seconds)
        {
            var startTime = new DateTime(1970, 1, 1, 0, 0, 0, 0);

            return DateTime.SpecifyKind(startTime.AddSeconds(seconds), DateTimeKind.Utc);
        }

        public static string BuildTimeString(DateTime utcTime)
        {
            return utcTime.ToString("yyyy-MM-ddTHH:mm:ss.068Z", CultureInfo.InvariantCulture);
        }
    }
}