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

[Serializable]
public class AMAudioTrack : AMTrack
{
	public override string getTrackType()
	{
		return "Audio";
	}

	public bool setAudioSource(AudioSource audioSource)
	{
		if (this.audioSource != audioSource)
		{
			this.audioSource = audioSource;
			return true;
		}
		return false;
	}

	public void ChangeAudioSource(AudioSource audio)
	{
		if (this.setAudioSource(audio))
		{
			for (int i = 0; i < this.keys.Count; i++)
			{
				(this.keys[i] as AMAudioKey).audioClip = this.audioSource.clip;
			}
			this.updateCache();
		}
	}

	public override void updateCache()
	{
		this.asName = this.audioSource.name;
		base.destroyCache();
		this.cache = new List<AMAction>();
		base.sortKeys();
		for (int i = 0; i < this.keys.Count; i++)
		{
			AMAudioAction amaudioAction = ScriptableObject.CreateInstance<AMAudioAction>();
			amaudioAction.startFrame = this.keys[i].frame;
			amaudioAction.audioSource = this.audioSource;
			amaudioAction.audioClip = (this.keys[i] as AMAudioKey).audioClip;
			amaudioAction.loop = (this.keys[i] as AMAudioKey).loop;
			this.cache.Add(amaudioAction);
		}
		base.updateCache();
	}

	public void addKey(int _frame, AudioClip _clip, bool _loop)
	{
		this.asName = this.audioSource.name;
		foreach (AMKey amkey in this.keys)
		{
			AMAudioKey amaudioKey = (AMAudioKey)amkey;
			if (amaudioKey.frame == _frame)
			{
				amaudioKey.audioClip = _clip;
				amaudioKey.loop = _loop;
				this.updateCache();
				return;
			}
		}
		AMAudioKey amaudioKey2 = ScriptableObject.CreateInstance<AMAudioKey>();
		amaudioKey2.frame = _frame;
		amaudioKey2.audioClip = _clip;
		amaudioKey2.loop = _loop;
		this.keys.Add(amaudioKey2);
		this.updateCache();
	}

	public override void previewFrame(float frame, AMTrack extraTrack = null)
	{
		if (this.audioSource != null)
		{
			this.asName = this.audioSource.name;
		}
	}

	public void sampleAudio(float frame, float speed, int frameRate)
	{
		if (!this.audioSource)
		{
			return;
		}
		int i = this.cache.Count - 1;
		while (i >= 0)
		{
			if (!(this.cache[i] as AMAudioAction).audioClip)
			{
				return;
			}
			if ((float)this.cache[i].startFrame <= frame)
			{
				float num = (frame - (float)this.cache[i].startFrame) / (float)frameRate;
				if (!(this.cache[i] as AMAudioAction).loop && num > (this.cache[i] as AMAudioAction).audioClip.length)
				{
					return;
				}
				num %= (this.cache[i] as AMAudioAction).audioClip.length;
				if (this.audioSource.isPlaying)
				{
					this.audioSource.Stop();
				}
				this.audioSource.clip = null;
				this.audioSource.clip = (this.cache[i] as AMAudioAction).audioClip;
				this.audioSource.loop = (this.cache[i] as AMAudioAction).loop;
				this.audioSource.time = num;
				this.audioSource.pitch = speed;
				this.audioSource.Play();
				return;
			}
			else
			{
				i--;
			}
		}
	}

	public void sampleAudioAtFrame(int frame, float speed, int frameRate)
	{
		if (!this.audioSource)
		{
			return;
		}
		for (int i = this.cache.Count - 1; i >= 0; i--)
		{
			if (this.cache[i].startFrame == frame)
			{
				if (this.audioSource.isPlaying)
				{
					this.audioSource.Stop();
				}
				this.audioSource.clip = null;
				this.audioSource.clip = (this.cache[i] as AMAudioAction).audioClip;
				this.audioSource.time = 0f;
				this.audioSource.loop = (this.cache[i] as AMAudioAction).loop;
				this.audioSource.pitch = speed;
				this.audioSource.Play();
				return;
			}
		}
	}

	public void stopAudio()
	{
		if (!this.audioSource)
		{
			return;
		}
		if (this.audioSource.isPlaying)
		{
			this.audioSource.Stop();
		}
	}

	public ulong getTimeInSamples(int frequency, float time)
	{
		return (ulong)((float)(44100 / frequency * frequency) * time);
	}

	public override AnimatorTimeline.JSONInit getJSONInit()
	{
		return null;
	}

	public override List<GameObject> getDependencies()
	{
		List<GameObject> list = new List<GameObject>();
		if (this.audioSource)
		{
			list.Add(this.audioSource.gameObject);
		}
		return list;
	}

	public override List<GameObject> updateDependencies(List<GameObject> newReferences, List<GameObject> oldReferences)
	{
		List<GameObject> list = new List<GameObject>();
		if (!this.audioSource)
		{
			return list;
		}
		int i = 0;
		while (i < oldReferences.Count)
		{
			if (oldReferences[i] == this.audioSource.gameObject)
			{
				AudioSource exists = (AudioSource)newReferences[i].GetComponent(typeof(AudioSource));
				if (!exists)
				{
					Debug.LogWarning("Animator: Audio Track component 'AudioSource' not found on new reference for GameObject '" + this.audioSource.gameObject.name + "'. Duplicate not replaced.");
					list.Add(oldReferences[i]);
					return list;
				}
				this.audioSource = exists;
				break;
			}
			else
			{
				i++;
			}
		}
		return list;
	}

	public AudioSource audioSource;

	public string asName;
}