/**
 * @Author: Igarmendia
 * @Author: Diego Ponce de Leon
 * @Date: Enero 2008
 */
package net.xinterface.utils
{
    import flash.utils.ByteArray;
    
	public class ArrayUtils
	{
		public function ArrayUtils()
		{
		}
		
		/** Clona un array */
		static public function Clone(array:Array):Array
		{
			var i:int;
			var l:int;
			var returned:Array;
			
			returned = new Array;
			
			l = array.length;
			
			for(i = 0; i < l; i++)
			{
				returned[i] = array[i];
			}
			
			return returned;
		}

        /** Pop recursivo: elmina un objeto de un array. El array se ajusta al nuevo tamaño evitando huecos vacios */
		static public function Pop(array:Array,object:Object):void
		{
			if(array.length==1 || array[array.length-1]==object)
			{
			   array.pop();
			}
			else
			{
			   ArrayUtils.InternalPop(array,object);
			}
		}
		static public function InternalPop(array:Array,object:Object):void
		{
			var aux:Object;
			 
	        if(array.length!=0)
	        {
			   aux = array.pop();
			   if(array[array.length-1]==object)
			   {
			      array.pop();
			   }
			   InternalPop(array,object);
			   array.push(aux);
		    }
		}
		/** Borra duplicados de un array */
		static public function DeleteDuplicated(array:Array):Array
		{
			var result:Array;
			
			result = new Array;
			
			array.forEach
			(
				function(item:*, index:int, arr:Array):void
				{
					if(result.indexOf(item) == -1) 
					{
						result.push(item);
					}
				}
			);
			
			return result;
		}
		/** Mueve un elemento de un array desde un índice a otro */
		static public function MoveIndex(pArray:Array, pIndex:int, pNewPosition:int):void
		{
			if(pIndex == pNewPosition)
			{
				throw new Error("MoveIndex: los indices deben ser diferentes");
				return;
			}
			
			var affected:Array;
			var toMove:Array;
			
			if(pIndex < pNewPosition)
			{
				affected = pArray.splice(pNewPosition, 1);
				toMove = pArray.splice(pIndex, 1);
				
			}else
			{
				toMove = pArray.splice(pIndex, 1);
				affected = pArray.splice(pNewPosition, 1);
			}
		
			pArray.splice(pIndex, 0, affected[0]);
			pArray.splice(pNewPosition, 0, toMove[0]);
		}
	}
}