/*
 * Copyright 2008-2009 (c) Lance Pollard
 * www.systemsofseven.com/blog
 * www.4ddesignlab.com
 * LanceJPollard@gmail.com
 *
 * Permission is hereby granted, free of charge, to any person
 * obtaining a copy of this software and associated documentation
 * files (the "Software"), to deal in the Software without
 * restriction, including without limitation the rights to use,
 * copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following
 * conditions:
 *
 * The above copyright notice and this permission notice shall be
 * included in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
 * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
 * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 * OTHER DEALINGS IN THE SOFTWARE.
 */

package com.fourD.core {
	
	[Bindable]
	public class ConditionsUtil {
		
		public static function validateConditions(conditions:Array):Boolean {
			var value:Boolean;
			var condition:*;
			var i:int=0, len:int = conditions.length;
			for (i; i < len; i++) {
				condition = conditions[i];
				if (condition is SimpleCondition) {
					value = ConditionsUtil.validateSimpleCondition(condition);
				} else if (condition is ComplexCondition) {
					value = ConditionsUtil.validateComplexCondition(condition);
				}
				if (value == false) { return value; }
			}
			return value;
		}
		
		public static function validateSimpleCondition(condition:Object):Boolean {
			var valid:Boolean = false;
			var source:* = condition.source;
			var property:* = condition.firstStatement;
			var value:Boolean = condition.value;
			if (!source[property]) {
				// THROW ERROR
			}
			if (source[property] == value) { valid = true }
			return valid;
		}
		
		public static function validateComplexCondition(condition:Object):Boolean {
			var valid:Boolean;
			var source:* = condition.source;
			var first:* = condition.firstStatement;
			var second:* = condition.secondStatement;
			var operator:String = condition.operator;
			if (operator == "==") {
				valid = (first == second);
			} else if (operator == "!=") {
				valid = (first != second)
			} else if (operator == "===") {
				valid = (first === second)
			} else if (operator == "!==") {
				valid = (first !== second)
			} else {
				valid = false;
			}
			return valid;
		}
	}
}