$(document).ready(function() {

	$("[class^=validate]").validationEngine({
		success :  false,
		failure : function() {}
	})
});

jQuery.fn.validationEngine = function(settings) {
	if($.validationEngineLanguage)
	{
		allRules = $.validationEngineLanguage.allRules
	}
	else
	{
		allRules = {
						"required":
						{
							"regex":"none",
							"alertText":"Поле не должно быть пустым!"
						},
						"email":
						{
							"regex":"/^[a-zA-Z0-9_\.\-]+\@([a-zA-Z0-9\-]+\.)+[a-zA-Z0-9]{2,4}$/",
							"alertText":"Неправильный формат e-mail!"
						},	
						"onlyNumber":
						{
							"regex":"/^[0-9]+$/",
							"alertText":"Только цифры!"
						},	
						"noSpecialCaracters":
						{
							"regex":"/^[0-9a-zA-Zа-яА-Я]+$/",
							"alertText":"Специальные символы запрещены!"
						},	
						"onlyLetter":
						{
							"regex":"/^[0-9a-zA-Z]+$/",
							"alertText":"Только латинские буквы!"
						}
					}	
	}

 	settings = jQuery.extend({
		allrules:allRules,
		success : false,
		failure : function() {}
	}, settings);	


	$("form").bind("submit", function(caller){
		if(submitValidation(this) == false){
			if (settings.success){
				settings.success && settings.success(); 
				return false;
			}
		}else{
			settings.failure && settings.failure(); 
			return false;
		}
	})
	$(this).not("[type=checkbox]").bind("blur", function(caller){loadValidation(this)})
	$(this+"[type=checkbox]").bind("click", function(caller){loadValidation(this)})
	
	var buildPrompt = function(caller,promptText) {
		var divFormError = document.createElement('div')
		var formErrorContent = document.createElement('div')
		var arrow = document.createElement('div')
		
		
		$(divFormError).addClass("formError")
		$(divFormError).addClass($(caller).attr("name"))
		$(formErrorContent).addClass("formErrorContent")
		$(arrow).addClass("formErrorArrow")

		$("body").append(divFormError)
		$(divFormError).append(arrow)
		$(divFormError).append(formErrorContent)
		$(arrow).html('<div class="line10"></div><div class="line9"></div><div class="line8"></div><div class="line7"></div><div class="line6"></div><div class="line5"></div><div class="line4"></div><div class="line3"></div><div class="line2"></div><div class="line1"></div>')
		$(formErrorContent).html(promptText)
		
		callerTopPosition = $(caller).offset().top;
		callerleftPosition = $(caller).offset().left;
		callerWidth =  $(caller).width()
		callerHeight =  $(caller).height()
		inputHeight = $(divFormError).height()

		callerleftPosition = callerleftPosition + callerWidth -30
		callerTopPosition = callerTopPosition  -inputHeight -10
	
		$(divFormError).css({
			top:callerTopPosition,
			left:callerleftPosition,
			opacity:0
		})
		$(divFormError).fadeTo("fast",0.8);
	};
	var updatePromptText = function(caller,promptText) {
		updateThisPrompt =  $(caller).attr("name")
		$("."+updateThisPrompt).find(".formErrorContent").html(promptText)
		
		callerTopPosition  = $(caller).offset().top;
		inputHeight = $("."+updateThisPrompt).height()
		
		callerTopPosition = callerTopPosition  -inputHeight -10
		$("."+updateThisPrompt).animate({
			top:callerTopPosition
		});
	}
	var loadValidation = function(caller) {
		
		rulesParsing = $(caller).attr('class');
		rulesRegExp = /\[(.*)\]/;
		getRules = rulesRegExp.exec(rulesParsing);
		str = getRules[1]
		pattern = /\W+/;
		result= str.split(pattern);	
		
		var validateCalll = validateCall(caller,result)
		return validateCalll
		
	};
	var validateCall = function(caller,rules) {
		var promptText =""	
		var isError = false
		var prompt = $(caller).attr("name")
		var caller = caller
		
		for (i=0; i<rules.length;i++){
			switch (rules[i]){
			case "required": 
				_required(caller,rules)
			break;
			case "custom": 
				 _customRegex(caller,rules,i)
			break;
			case "length": 
				 _length(caller,rules,i)
			break;
			case "minCheckbox": 
				 _minCheckbox(caller,rules,i)
			break;
			case "confirm": 
				 _confirm(caller,rules,i)
			break;
			default :;
			}
		}
		if (isError == true){
			($("."+prompt).size() ==0) ? buildPrompt(caller,promptText)	: updatePromptText(caller,promptText)
		}else{
			closePrompt(caller)
		}		
		
		/* VALIDATION FUNCTIONS */
		function _required(caller,rules){
			callerType = $(caller).attr("type")
			
			if (callerType == "text" || callerType == "password" || callerType == "textarea"){
				
				if(!$(caller).val()){
					isError = true
					promptText += settings.allrules[rules[i]].alertText+"<br />"
				}	
			}
			if (callerType == "radio" || callerType == "checkbox" ){
				callerName = $(caller).attr("name")
		
				if($("input[name="+callerName+"]:checked").size() == 0) {
					isError = true
					if($("input[name="+callerName+"]").size() ==1) {
						promptText += settings.allrules[rules[i]].alertTextCheckboxe+"<br />" 
					}else{
						 promptText += settings.allrules[rules[i]].alertTextCheckboxMultiple+"<br />"
					}	
				}
			}	
		}
		function _customRegex(caller,rules,position){
			customRule = rules[position+1]
			pattern = eval(settings.allrules[customRule].regex)
			
			if(!pattern.test($(caller).attr('value'))){
				isError = true
				promptText += settings.allrules[customRule].alertText+"<br />"
			}
		}
		function _confirm(caller,rules,position){
			confirmField = rules[position+1]
			
			if($(caller).attr('value') != $("#"+confirmField).attr('value')){
				isError = true
				promptText += settings.allrules["confirm"].alertText+"<br />"
			}
		}
		function _length(caller,rules,position){
		
			startLength = eval(rules[position+1])
			endLength = eval(rules[position+2])
			feildLength = $(caller).attr('value').length

			if(feildLength<startLength || feildLength>endLength){
				isError = true
				promptText += settings.allrules["length"].alertText+startLength+settings.allrules["length"].alertText2+endLength+settings.allrules["length"].alertText3+"<br />"
			}
		}
		function _minCheckbox(caller,rules,position){
		
			nbCheck = eval(rules[position+1])
			groupname = $(caller).attr("name")
			groupSize = $("input[name="+groupname+"]:checked").size()
			
			if(groupSize > nbCheck){	
				isError = true
				promptText += settings.allrules["minCheckbox"].alertText+"<br />"
			}
		}
		return(isError) ? isError : false;
	};
	var closePrompt = function(caller) {
		closingPrompt = $(caller).attr("name")

		$("."+closingPrompt).fadeTo("fast",0,function(){
			$("."+closingPrompt).remove()
		});
	};
	var submitValidation = function(caller) {
		var stopForm = false
		$(".formError").remove()
		var toValidateSize = $(caller).find("[class^=validate]").size()
		
		$(caller).find("[class^=validate]").each(function(){
			var validationPass = loadValidation(this)
			return(validationPass) ? stopForm = true : "";	
		});
		if(stopForm){
			destination = $(".formError:first").offset().top;
			return true;
		}else{
			return false
		}
	};
};