/*
 * Inline Form Validation Engine, jQuery plugin
 * 
 * Copyright(c) 2009, Cedric Dugas
 * http://www.position-relative.net
 *	
 * Form validation engine witch allow custom regex rules to be added.
 * Licenced under the MIT Licence
 */

jQuery.fn.validationEngine = function(settings) {
	if($.validationEngineLanguage){					// IS THERE A LANGUAGE LOCALISATION ?
		allRules = $.validationEngineLanguage.allRules
	}else{
	}

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


	$(settings.id).bind("submit", function(caller){ // ON FORM SUBMIT, CONTROL AJAX FUNCTION IF SPECIFIED ON DOCUMENT READY
		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) {			// ERROR PROMPT CREATION AND DISPLAY WHEN AN ERROR OCCUR
		var $errorDiv = $("[class^=formError]");
		$errorDiv.each(function(i){
			$(this).remove();
		});
	
		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) {	// UPDATE TEXT ERROR IF AN ERROR IS ALREADY DISPLAYED
		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) {		// GET VALIDATIONS TO BE EXECUTED
		
		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) {	// EXECUTE VALIDATION REQUIRED BY THE USER FOR THIS FILED
		var promptText ="";
		var isError = false;
		var prompt = $(caller).attr("name");
		var caller = caller;
		
		for (i=0; i<rules.length;i++){
			if(true == isError){
				break;
			}
			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){   // VALIDATE BLANK FIELD
			callerType = $(caller).attr("type");
			if(callerType == 'select-one'){
				if(!$(caller).val()){
					isError = true;
					promptText += settings.allrules[rules[i]].alertTextCheckboxMultiple+"<br />";
				}
			}
			
			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){		 // VALIDATE REGEX RULES
			customRule = rules[position+1];
			pattern = eval(settings.allrules[customRule].regex);
			var val = $( caller ).attr( 'value' );
			val = jQuery.trim( val );
			if('onlyLetter' == customRule){
				while(-1 != val.indexOf(' ')){
					val = val.replace(' ','');
				}
			}
			
			if(!pattern.test( val )){
				isError = true;
				promptText += settings.allrules[customRule].alertText+"<br />";
				$(caller).val('');
			}
		}
		function _confirm(caller,rules,position){		 // VALIDATE FIELD MATCH
			confirmField = rules[position+1];
			
			if($(caller).attr('value') != $("#"+confirmField).attr('value')){
				isError = true;
				promptText += settings.allrules["confirm"].alertText+"<br />";
			}
		}
		function _length(caller,rules,position){    // VALIDATE LENGTH
		
			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 />";
				$(caller).val('');
			}
		}
		function _minCheckbox(caller,rules,position){    // VALIDATE CHECKBOX NUMBER
		
			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) {	// CLOSE PROMPT WHEN ERROR CORRECTED
		closingPrompt = $(caller).attr("name");

		$("."+closingPrompt).fadeTo("fast",0,function(){
			$("."+closingPrompt).remove();
		});
	};
	var submitValidation = function(caller) {	// FORM SUBMIT VALIDATION LOOPING INLINE VALIDATION
		var stopForm = false;
		$(".formError").remove();
		var toValidateSize = $(caller).find("[class^=validate]").size();
		
		var validationPass = false;
		$(caller).find("[class^=validate]").each(function(){
			if( validationPass != true){
				validationPass = loadValidation(this);
				return ( validationPass ) ? stopForm = true : "";
			}
		});
		if(stopForm){							// GET IF THERE IS AN ERROR OR NOT FROM THIS VALIDATION FUNCTIONS
			//destination = $(".formError:first").offset().top;
		//	$("html:not(:animated),body:not(:animated)").animate({ scrollTop: destination}, 1100);
			return true;
		}else{
			return false
		}
	};
};