﻿/*
Copyright 2017 James Craig

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.
*/

namespace Sundial.Core.Manager.Default
{
    /// <summary>
    /// Acts as a stop watch (records start and stop times)
    /// </summary>
    public class StopWatch
    {
        /// <summary>
        /// Initializes a new instance of the <see cref="StopWatch"/> class.
        /// </summary>
        public StopWatch()
        {
            Watch = new System.Diagnostics.Stopwatch();
            Reset();
        }

        /// <summary>
        /// Returns the elapsed time
        /// </summary>
        public double ElapsedTime => Watch.Elapsed.TotalMilliseconds;

        /// <summary>
        /// Internal stop watch
        /// </summary>
        protected System.Diagnostics.Stopwatch Watch { get; }

        /// <summary>
        /// Resets the watch
        /// </summary>
        public void Reset()
        {
            Watch.Reset();
        }

        /// <summary>
        /// Starts the stop watch
        /// </summary>
        public void Start()
        {
            Reset();
            Watch.Start();
        }

        /// <summary>
        /// Stops the stop watch
        /// </summary>
        public void Stop()
        {
            Watch.Stop();
        }
    }
}