/*
 *
 *	Adventure Creator
 *	by Chris Burton, 2013-2014
 *	
 *	"MenuSlider.cs"
 * 
 *	This MenuElement creates a slider for eg. volume control.
 * 
 */

using UnityEngine;
using AC;

#if UNITY_EDITOR
using UnityEditor;
#endif

public class MenuSlider : MenuElement
{
	
	public string label;
	public bool doOutline;
	public int amount;
	public TextAnchor anchor;
	public Texture2D sliderTexture;
	public AC_SliderType sliderType;

	
	public override void Declare ()
	{
		label = "Slider";
		doOutline = false;
		isVisible = true;
		isClickable = true;
		numSlots = 1;
		amount = 10;
		anchor = TextAnchor.MiddleLeft;
		sliderType = AC_SliderType.CustomScript;
		
		base.Declare ();
	}
	
	
	public void CopySlider (MenuSlider _element)
	{
		label = _element.label;
		doOutline = _element.doOutline;
		amount = _element.amount;
		anchor = _element.anchor;
		sliderTexture = _element.sliderTexture;
		sliderType = _element.sliderType;

		base.Copy (_element);
	}
	
	
	#if UNITY_EDITOR
	
	public override void ShowGUI ()
	{
		EditorGUILayout.BeginVertical ("Button");
			label = EditorGUILayout.TextField ("Label text:", label);
			anchor = (TextAnchor) EditorGUILayout.EnumPopup ("Text alignment:", anchor);
			doOutline = EditorGUILayout.Toggle ("Outline text?", doOutline);
			amount = EditorGUILayout.IntSlider ("Slider value:", amount, 0, 10);
		
			EditorGUILayout.BeginHorizontal ();
				EditorGUILayout.LabelField ("Slider texture:", GUILayout.Width (145f));
				sliderTexture = (Texture2D) EditorGUILayout.ObjectField (sliderTexture, typeof (Texture2D), false, GUILayout.Width (70f), GUILayout.Height (30f));
			EditorGUILayout.EndHorizontal ();
		
			sliderType = (AC_SliderType) EditorGUILayout.EnumPopup ("Slider type:", sliderType);
			if (sliderType == AC_SliderType.CustomScript)
			{
				ShowClipHelp ();
			}
		EditorGUILayout.EndVertical ();
		
		base.ShowGUI ();
	}
	
	#endif
	
	
	public override void Display (GUIStyle _style, int _slot, float zoom)
	{
		base.Display (_style, _slot, zoom);
		
		_style.alignment = anchor;
		if (zoom < 1f)
		{
			_style.fontSize = (int) ((float) _style.fontSize * zoom);
		}
		
		if (doOutline)
		{
			AdvGame.DrawTextOutline (ZoomRect (relativeRect, zoom), TranslateLabel (label), _style, Color.black, _style.normal.textColor, 2);
		}
		else
		{
			GUI.Label (ZoomRect (relativeRect, zoom), TranslateLabel (label), _style);
		}
		
		if (sliderTexture)
		{
			Rect sliderRect = relativeRect;
			sliderRect.x = relativeRect.x + (relativeRect.width / 2);
			sliderRect.width = slotSize.x / 100 * AdvGame.GetMainGameViewSize ().x * (float) amount / 10 * 0.5f;
			GUI.DrawTexture (ZoomRect (sliderRect, zoom), sliderTexture, ScaleMode.StretchToFill, true, 0f);
		}
	}


	public override string GetLabel (int slot)
	{
		return TranslateLabel (label);
	}
	
	
	public void Change ()
	{
		amount ++; 
		
		if (amount > 10)
		{
			amount = 0;
		}
		
		if (sliderType != AC_SliderType.CustomScript)
		{
			if (GameObject.FindWithTag (Tags.persistentEngine) && GameObject.FindWithTag (Tags.persistentEngine).GetComponent <Options>())
			{
				Options options = GameObject.FindWithTag (Tags.persistentEngine).GetComponent <Options>();
				
				if (sliderType == AC_SliderType.Speech)
				{
					options.optionsData.speechVolume = amount;
				}
				else if (sliderType == AC_SliderType.Music)
				{
					options.optionsData.musicVolume = amount;
					options.SetVolume (SoundType.Music);
				}
				else if (sliderType == AC_SliderType.SFX)
				{
					options.optionsData.sfxVolume = amount;
					options.SetVolume (SoundType.SFX);
				}		
				
				options.SavePrefs ();
			}
			else
			{
				Debug.LogWarning ("Could not find Options data!");
			}
		}
	}
	
	
	public override void RecalculateSize ()
	{
		if (Application.isPlaying && sliderType != AC_SliderType.CustomScript)
		{
			if (GameObject.FindWithTag (Tags.persistentEngine) && GameObject.FindWithTag (Tags.persistentEngine).GetComponent <Options>())
			{	
				Options options = GameObject.FindWithTag (Tags.persistentEngine).GetComponent <Options>();
				
				if (sliderType == AC_SliderType.Speech)
				{
					amount = options.optionsData.speechVolume;
				}
				else if (sliderType == AC_SliderType.Music)
				{
					amount = options.optionsData.musicVolume;
				}
				else if (sliderType == AC_SliderType.SFX)
				{
					amount = options.optionsData.sfxVolume;
				}
			}
		}
		
		base.RecalculateSize ();
	}
	
	
	protected override void AutoSize ()
	{
		AutoSize (new GUIContent (TranslateLabel (label)));
	}

}