package CPX.Portals.Publisher.Components.Algo
{
	/*@Author - Gaurav Pandey
	 @Description - Part of a Flex-Collection API*/

	import flash.utils.Dictionary;

	import mx.collections.ArrayCollection;

	/*Hybrid Version of Set and Dictionary as it does not allow duplicates but saves data as key, value pair*/
	public dynamic final class MyDictionary extends Dictionary
	{
		public function MyDictionary(weakKeys:Boolean=false)
		{
			super(weakKeys);
		}

		public function insertKeyValue(keyValueCombo:Object):void
		{
			if (this == null)
				throw new ReferenceError("Object instance is null");
			if (!(this is MyDictionary))
				throw new MDIllegalObjectException("Object referenced is not of MyDictionary type");
			if (keyValueCombo == null)
				throw new ArgumentError("Key is Nothing");
			/*Debatable whether value assigned to a key can be kept as null or not*/
			/*if(value == null)
			 throw new ArgumentError("Value is Nothing");*/
			if (this[keyValueCombo] != null)
				throw new ArgumentError("Key already exists");

			this[keyValueCombo]=keyValueCombo;
		}

		public function insertKey(key:Object, value:Object):void
		{
			if (this == null)
				throw new ReferenceError("Object instance is null");
			if (!(this is MyDictionary))
				throw new MDIllegalObjectException("Object referenced is not of MyDictionary type");
			if (key == null)
				throw new ArgumentError("Key is Nothing");
			/*Debatable whether value assigned to a key can be kept as null or not*/
			/*if(value == null)
			 throw new ArgumentError("Value is Nothing");*/
			if (this[key] != null)
				throw new ArgumentError("Key already exists");

			this[key]=value;
		}

		public function insertArray(arr:Array):void
		{
			if (this == null)
				throw new ReferenceError("Object instance is null");
			if (!(this is MyDictionary))
				throw new MDIllegalObjectException("Object referenced is not of MyDictionary type");
			if (arr == null)
				throw new ReferenceError("Argument instance is null");

			if (arr.length > 0)
				for each (var x:Object in arr)
					if (this[x] != null)
					{
						//trace("Value for key:" + x + " already exists");
					}
					else
						this[x]=x;
		}

		public function getSize():int
		{
			if (this == null)
				throw new ReferenceError("Object instance is null");
			if (!(this is MyDictionary))
				throw new MDIllegalObjectException("Object referenced is not of MyDictionary type");

			var count:int=0;
			for (var x:Object in this)
				count++;
			return count;
		}

		public function removeKey(key:Object):void
		{
			if (this == null)
				throw new ReferenceError("Object instance is null");
			if (!(this is MyDictionary))
				throw new MDIllegalObjectException("Object referenced is not of MyDictionary type");
			if (key == null)
				throw new ArgumentError("Key is null");

			if (this[key] != null)
			{
				//trace("Value for key: " + key + " does exist");
				var obj:Object=this[key];
				this[key]=null;
				delete this[key];
			}
			else
			{
				trace("Value for key: " + key + " does not exist");
			}
		}

		public function clear():void
		{
			if (this == null)
				throw new ReferenceError("Object instance is null");
			if (!(this is MyDictionary))
				throw new MDIllegalObjectException("Object referenced is not of MyDictionary type")

			for (var x:Object in this)
			{
				this[x]=null;
				delete this[x];
			}
		}

		public function containsKey(key:Object):Boolean
		{
			if (this == null)
				throw new ReferenceError("Object instance is null");
			if (!(this is MyDictionary))
				throw new MDIllegalObjectException("Object referenced is not of MyDictionary type");
			if (key == null)
				throw new ArgumentError("Key passed is null");

			if (this[key] != null)
				return true;
			return false;
		}

		public function containsValue(value:Object):Boolean
		{
			if (this == null)
				throw new ReferenceError("Object instance is null");
			if (!(this is MyDictionary))
				throw new MDIllegalObjectException("Object referenced is not of MyDictionary type");
			if (value == null)
				throw new ArgumentError("Value passed is null");

			for (var x:Object in this)
				if (this[x] != null)
					if (this[x] == value)
						return true;
			return false;
		}

		public function toString():Object
		{
			if (this == null)
				throw new ReferenceError("Object instance is null");
			if (!(this is MyDictionary))
				throw new MDIllegalObjectException("Object referenced is not of MyDictionary type");

			var sb:String="";

			for (var x:Object in this)
				if (this[x] != null)
					sb+="key: " + x + " value: " + this[x] + "\n";

			return sb;
		}

		public function getKeys(asArray:Boolean=true):Object
		{
			if (this == null)
				throw new ReferenceError("Object instance is null");
			if (!(this is MyDictionary))
				throw new MDIllegalObjectException("Object referenced is not of MyDictionary type");

			var arrC:ArrayCollection=new ArrayCollection();

			for (var x:Object in this)
				arrC.addItem(x);
			if (asArray)
				return arrC.toArray().sort();
			return arrC;
		}

		public function getValues(asArray:Boolean=true):Object
		{
			if (this == null)
				throw new ReferenceError("Object instance is null");
			if (!(this is MyDictionary))
				throw new MDIllegalObjectException("Object referenced is not of MyDictionary type");

			var arrC:ArrayCollection=new ArrayCollection();

			for (var x:Object in this)
				if (this[x] != null)
					arrC.addItem(this[x]);
			if (asArray)
				return arrC.toArray().sort();
			return arrC;
		}
		
		public function clone():MyDictionary
		{
			if (this == null)
				throw new ReferenceError("Object instance is null");
			if (!(this is MyDictionary))
				throw new MDIllegalObjectException("Object referenced is not of MyDictionary type");

			var dict:MyDictionary=new MyDictionary();

			for (var x:Object in this)
				dict.insertKey(x, this[x]);
			return dict;
		}

		public function getValue(key : Object):Object
		{
			if (this == null)
				throw new ReferenceError("Object instance is null");
			if (!(this is MyDictionary))
				throw new MDIllegalObjectException("Object referenced is not of MyDictionary type");

			if(this[key] != null)
				return this[key];
			return null;
		}
	}
}