/*
 *
 *	Adventure Creator
 *	by Chris Burton, 2013-2014
 *	
 *	"ActionPlayerCheck.cs"
 * 
 *	This action checks to see which
 *	Player prefab is currently being controlled.
 * 
 */

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

#if UNITY_EDITOR
using UnityEditor;
#endif

[System.Serializable]
public class ActionPlayerCheck : ActionCheck
{
	
	public int playerID;
	public int playerNumber;
	
	private SettingsManager settingsManager;
	
	
	public ActionPlayerCheck ()
	{
		this.isDisplayed = true;
		title = "Player: Check";
	}
	

	override public bool CheckCondition ()
	{
		Player player = GameObject.FindWithTag (Tags.player).GetComponent <Player>();

		if (player && player.ID == playerID)
		{
			return true;
		}

		return false;
	}
	
	
	#if UNITY_EDITOR
	
	override public void ShowGUI ()
	{
		if (!settingsManager)
		{
			settingsManager = AdvGame.GetReferences ().settingsManager;
		}
		
		if (!settingsManager)
		{
			return;
		}

		if (settingsManager.playerSwitching == PlayerSwitching.DoNotAllow)
		{
			EditorGUILayout.HelpBox ("This Action requires Player Switching to be allowed, as set in the Settings Manager.", MessageType.Info);
			return;
		}

		// Create a string List of the field's names (for the PopUp box)
		List<string> labelList = new List<string>();
		
		int i = 0;
		playerNumber = -1;
		
		if (settingsManager.players.Count > 0)
		{
			
			foreach (PlayerPrefab playerPrefab in settingsManager.players)
			{
				if (playerPrefab.playerOb != null)
				{
					labelList.Add (playerPrefab.playerOb.name);
				}
				else
				{
					labelList.Add ("(Undefined prefab)");
				}
				
				// If a player has been removed, make sure selected player is still valid
				if (playerPrefab.ID == playerID)
				{
					playerNumber = i;
				}
				
				i++;
			}
			
			if (playerNumber == -1)
			{
				// Wasn't found (item was possibly deleted), so revert to zero
				Debug.LogWarning ("Previously chosen Player no longer exists!");
				
				playerNumber = 0;
				playerID = 0;
			}
			
			playerNumber = EditorGUILayout.Popup ("Player to check:", playerNumber, labelList.ToArray());
			playerID = settingsManager.players[playerNumber].ID;
		}
		
		else
		{
			EditorGUILayout.LabelField ("No players exist!");
			playerID = -1;
			playerNumber = -1;
		}
	}


	override public string SetLabel ()
	{
		if (settingsManager && settingsManager.playerSwitching == PlayerSwitching.Allow)
		{
			if (settingsManager.players.Count > 0 && settingsManager.players.Count > playerNumber)
			{
				if (playerNumber > -1)
				{
					if (settingsManager.players[playerNumber].playerOb != null)
					{
						return " (" + settingsManager.players[playerNumber].playerOb.name + ")";
					}
					else
					{
						return (" (Undefined prefab");
					}
				}
			}
		}
		
		return "";
	}
	
	#endif
	
}