using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace Deltares.Dam.DamLiveShowcase
{
    /// <summary>
    /// Demo calculator: data is generated through precalculated data
    /// </summary>
    public class DemoDamLiveProcessor : IDamLiveProcessor
    {
        private int demoTimestepIndex = -1;
        private const string demoPicturesMap = "DemoPictures";
        private TimeStepData[] demoTimeSteps =
        {
            new TimeStepData(){WaterLevel =  1.0, SafetyFactor = 1.53, SlidingCurveFilename = demoPicturesMap + @"\PictureStep01.wmf"},
            new TimeStepData(){WaterLevel =  1.5, SafetyFactor = 1.43, SlidingCurveFilename = demoPicturesMap + @"\PictureStep02.wmf"},
            new TimeStepData(){WaterLevel =  2.0, SafetyFactor = 1.33, SlidingCurveFilename = demoPicturesMap + @"\PictureStep03.wmf"},
            new TimeStepData(){WaterLevel =  2.5, SafetyFactor = 1.25, SlidingCurveFilename = demoPicturesMap + @"\PictureStep04.wmf"},
        };

        /// <summary>
        /// Calculates the timestep.
        /// </summary>
        /// <returns></returns>
        public TimeStepData CalculateTimestep()
        {
            demoTimestepIndex++;
            if (demoTimestepIndex > 3)
            {
                demoTimestepIndex = 0;
            }
            var timeStep = demoTimeSteps[demoTimestepIndex];
            timeStep.Time = DateTime.Now;
            return timeStep;
        }

        /// <summary>
        /// Initializes this instance.
        /// </summary>
        public void Initialize()
        {
            // no initialize necessary
        }
    }
}