using System;
using System.Collections;
using System.Collections.Generic;

namespace Wavelet_Tracker
{
	public class PitchRandomiseMachine : MachineParameterisedBase
	{
		private const string type = "Pitch Randomise";
		private const string author = "Internal";
		private const int version = 2;
		private Random qwer;

        public PitchRandomiseMachine(string name)
            : base(type, author, version, name)
		{
			qwer = new Random((int) System.DateTime.Now.Ticks%98765 + this.GetHashCode());
            machineLimitations = MachineLimitations.ProcessWavelets;
		}

		protected override void endProductionImpl(long interval)
		{
            float dSpread = (float)(parameters[0].parameterValue);

            List<SoundEvent> list = inputs[0].buffer.getForProcessing(playTime, interval, true);
			for (int x = 0; x < list.Count; x++)
			{
				SoundEvent e = list[x];

				if (e.eventType == EventType.AUDIO_WAVELETS)
				{
                    float r = (float) qwer.NextDouble();   // (0.0 to 1.0)
					r -= 0.5f;                       // (+/- 0.5)
                    r *= (float) dSpread;                   // (+/- dSpread/2)
                    r += 1.0f;                       // (1 +/- dSpread/2)

					WaveletEvent w = (WaveletEvent) e;
					//WaveletEvent v = new WaveletEvent(w.frequency*r, w.amplitude, w.length, w.phase, w.time);
                    w.frequency *= r;
                    w.calcEndpoints();
				}
			}
            outputs[0].buffer.addAllEvents(list);
		}

		protected override void endSeekImpl(long seekTime)
		{

		}


		protected override void endSetupParametersImpl()
		{
			parameters = new MachineParameter[1];
			MachineParameterContinuous freq = new MachineParameterContinuous("Range", 0, 0.05f);
			freq.multiplier = 50;
			freq.label = "% +/-";
			parameters[0] = freq;
		}

		protected override void endSetupInputOutputImpl()
		{
			outputs = new MachineConnection[1];
			outputs[0] = new MachineConnection("Output");

			inputs = new MachineConnection[1];
			inputs[0] = new MachineConnection("Input");
		}

		protected override void endTickImpl(ArrayList parameterChanges)
		{
		}
	}
}