//#define NO_SOUND

using Cryville.Audio.Source;
using Cryville.Crtr.Event;
using System;
using System.Collections.Generic;
using System.IO;

namespace Cryville.Crtr {
	public class ChartHandler : ContainerHandler {
		//private StampedState cs;

		public Chart chart;
		//readonly Dictionary<string, Sound> sounds = new Dictionary<string, Sound>();
		readonly List<LibavFileAudioSource> sounds = new List<LibavFileAudioSource>();

		public ChartHandler(Chart _chart, DirectoryInfo dir) : base() {
			if (dir == null) throw new ArgumentNullException("dir");

			chart = _chart;

			/*foreach (Chart.Group g in chart.groups) {
				var gh = new GroupHandler(g, this);
				// cs.AddChild(new StampedState(new StampedState(chart, sevs)));
			}*/

			//PrehandleEvents();
		}

		public override string TypeName {
			get {
				return "chart";
			}
		}

		public override void PreInit() {
			base.PreInit();
		}

		public override void Init() {
			base.Init();
#if !NO_SOUND
			/*foreach (Chart.Sound ev in chart.sounds) {
				sounds.Add(ev, new LibavFileAudioSource(
					Game.GameDataPath + "/songs/" + ev.id + "/.ogg"
				));
				Logger.Log("main", 0, "Load", "Loading song: {0}", ev.id);
			}*/
#endif
		}

		public override void Dispose() {
			if (Disposed) return;
			base.Dispose();
			// foreach (var h in handlers) h.Dispose();
			foreach (var s in sounds) s.Dispose();
		}
		
		/*List<StampedEvent> sevs = new List<StampedEvent>();
		public void PrehandleEvents() {
			EventPrehandler ph = new EventPrehandler(
				chart, 
				chart.motions.Cast<Chart.Event>()
					.Concat<Chart.Event>(chart.signs.Cast<Chart.Event>())
					.Concat<Chart.Event>(chart.sounds.Cast<Chart.Event>())
			);
			// foreach (var h in handlers) h.StartPrehandler(ph);
			ph.Forward(ev => {
				if (ev is Chart.Sound) {
					Chart.Sound tev = (Chart.Sound)ev;
					sevs.Add(new StampedEvent.PlaySound() {
						Time = ph.Time - tev.offset + Settings.Default.SoundOffset,
						Event = tev
					});
				}
				// foreach (var h in handlers) h.PrehandleToTime(ph.Time);
			});

			sevs = sevs.Concat(ph.Result).ToList();
			cs = new StampedState(chart, sevs);
			// foreach (var h in handlers) h.EndPrehandler(cs);
		}*/

		public override void Update(ContainerState s, StampedEvent ev) {
			base.Update(s, ev);
			if (s.CloneType == 16) {
				if (ev == null) { }
				else if (ev.Unstamped == null) { }
				else if (ev.Unstamped is Chart.Sound) {
					Chart.Sound tev = (Chart.Sound)ev.Unstamped;
					var source = new LibavFileAudioSource(
						Game.GameDataPath + "/songs/" + tev.id + "/.ogg"
					);
					source.SelectStream();
					sounds.Add(source);
					Game.AudioSession.Sequence(
						s.Time - tev.offset + ChartPlayer.soundOffset,
						source
					);
					/*var l = new List<StampedEvent> {
						new StampedEvent.PlaySound() {
							Time = s.Time - tev.offset + ChartPlayer.soundOffset,
							Container = chart,
							Unstamped = tev
						}
					};
					cs.Bus.IssuePatch(l);*/
				}
			}
		}

		public override void ExUpdate(ContainerState s, StampedEvent ev) {
			base.ExUpdate(s, ev);
			if (s.CloneType == 0) {
/*#if !NO_SOUND
				if (ev is StampedEvent.PlaySound) {
					StampedEvent.PlaySound tev = (StampedEvent.PlaySound)ev;
					// sounds[tev.Event.file.ToLower()].audioSource.time = toTime - cs.Time;
					sounds[tev.Unstamped.id].audioSource.Play();
				}
#endif*/
			}
		}

		public override void EndUpdate(ContainerState s) {
			base.EndUpdate(s);
			// TODO End of chart
		}

		/*public void SendInput(int id, TouchPhase phase, Vector2 pos) {
			// Vector2 jpos = Camera.main.ScreenToWorldPoint(new Vector3(pos.x, pos.y, -cameraZ));
			/*foreach (var h in handlers) {
				h.SendInput(id, phase, jpos);
			}*
		}

		int hits = 0;
		int misses = 0;
		public void ReportJudge(bool hit) {
			if (hit) hits++;
			else misses++;
			GameObject.Find("Status").GetComponent<Text>().text = string.Format("Hits: {0}\nMisses: {1}", hits, misses);
		}*/
	}

	/*public class ChartState : ChartEventStateBase {
		public ChartState(Chart c) : base(
			c,
			c.motions.Cast<Chart.Event>()
				.Concat<Chart.Event>(c.signs.Cast<Chart.Event>())
				.Concat<Chart.Event>(c.sounds.Cast<Chart.Event>())
		) { }

		protected override void Handle(Chart.Event ev) {
			/*if (ev is Chart.Signature) {
				Chart.Signature tev = (Chart.Signature)ev;
				float tempo = tev.tempo;
				if (tempo != 0)
					Tempo = tempo;
			}*
			base.Handle(ev);
		}
	}*/
}