/**************************************************************

	Script		: Validate
	Version		: 2.1
	Authors		: Samuel Birch
	Desc		: Form validation
	Licence		: Open Source MIT Licence

**************************************************************/

var Validate = new Class({
	
	getOptions: function(){
		return {
			validateOnBlur: true,
			errorClass: 'errorClass',
			errorMsgClass: 'error',
			dateFormat: 'dd/MM/yyyy',
			onFail: Class.empty,
			onSuccess: false,
			showErrorsInline: true,
			label: 'Please wait...',
			checkpwd: 'password'
		};
	},

	initialize: function(form, options){
		this.setOptions(this.getOptions(), options);
		
		this.form = $(form);
		this.elements = this.form.getElements('.validation-failed');
		
		this.list = [];
		
		this.elements.each(function(el,i){
			if(this.options.validateOnBlur){
				el.addEvent('blur', this.validate.bind(this, el));
			}
		}.bind(this));
		
		this.form.addEvent('submit', function(e){
			var event = new Event(e);
			var doSubmit = true;
			this.elements.each(function(el,i){
				if(! this.validate(el)){
					event.stop();
					doSubmit = false
					this.list.include(el);
				}else{
					//this.list.remove(el);  //TO CHANGE
				}
			}.bind(this));
			
			if(doSubmit){
				if(this.options.onSuccess){
					event.stop();
					this.options.onSuccess(this.form);
				}else{
					this.form.getElement('input[type=submit]').setProperty('value',this.options.label);
				}
			}else{
				//this.options.onFail(this.getList());  //TO CHANGE
			}
			
		}.bind(this));
		
	},
	
	getList: function(){
		var list = new Element('ul');
		this.list.each(function(el,i){
			if(el.title != ''){
			var li = new Element('li').injectInside(list);
			new Element('label').setProperty('for', el.id).set('text', el.title).injectInside(li);
			}
		});
		return list;
	},
	
	validate: function(el){
		var valid = true;
		this.clearMsg(el);
		
		switch(el.type){
			case 'password':
			case 'text':
			case 'textarea':
			case 'select-one':
				if(el.hasClass('required')){
					if(el.value == ''){
						valid = false;
						this.setMsg(el);
					}
				}
				if(el.value != ''){
					if(el.hasClass('validate-email')){
						var regEmail = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-]{2,})+\.)+([a-zA-Z0-9]{2,})+$/;
						if(el.value.match(regEmail)){
							valid = true;
						}else{
							valid = false;
							if (el.title!="") this.setMsg(el, el.title);
							else this.setMsg(el, 'Please enter a valid email address');
						}
					}
					
					if(el.hasClass('validate-number')){
						var regNum = /[-+]?[0-9]*\.?[0-9]+/;
						if(el.value.match(regNum)){
							valid = true;
						}else{
							valid = false;
							if (el.title!="") this.setMsg(el, el.title);
							else this.setMsg(el, 'Please enter a valid number');
						}
					}
					
					if(el.hasClass('postcode')){
						var regPC = /^([Gg][Ii][Rr] 0[Aa]{2})|((([A-Za-z][0-9]{1,2})|(([A-Za-z][A-Ha-hJ-Yj-y][0-9]{1,2})|(([A-Za-z][0-9][A-Za-z])|([A-Za-z][A-Ha-hJ-Yj-y][0-9]?[A-Za-z])))) [0-9][A-Za-z]{2})$/
						if(el.value.match(regPC)){
							valid = true;
						}else{
							valid = false;
							if (el.title!="") this.setMsg(el, el.title);
							else this.setMsg(el, 'Please enter a valid postcode');
						}
					}
					
					if(el.hasClass('validate-date')){
						var d = Date.parseExact(el.value, this.options.dateFormat);
						if(d != null){
							valid = true;
						}else{
							valid = false;
							if (el.title!="") this.setMsg(el, el.title);
							else this.setMsg(el, 'Please enter a valid date in the format: '+this.options.dateFormat.toLowerCase());
						}
					}
					
					if(el.hasClass('validate-url')){
						var regUrl = /^(http|https|ftp):\/\/(([A-Z0-9][A-Z0-9_-]*)(\.[A-Z0-9][A-Z0-9_-]*)+)(:(\d+))?\/?/i;
						if(el.value.match(regUrl)){
							valid = true;
						}else{
							valid = false;
							if (el.title!="") this.setMsg(el, el.title);
							else this.setMsg(el, 'Please enter a valid url');
						}
					}
					
					if(el.hasClass('validate-lenght-8')){
						if(el.value.length > 7){
							valid = true;
						}else{
							valid = false;
							if (el.title!="") this.setMsg(el, el.title);
							else this.setMsg(el, 'Please enter more than 7 characters');
						}
					}
					
					if(el.hasClass('validate-repeatpassword')){
						if(el.value == $(this.options.checkpwd).value){
							valid = true;
						}else{
							valid = false;
							if (el.title!="") this.setMsg(el, el.title);
							else this.setMsg(el, 'Password dont match');
						}
					}
					
				}
				break;
				
			case 'checkbox':
				if(el.hasClass('required')){
					if(!el.checked){
						valid = false;
						this.setMsg(el);
					}else{
						valid = true;
					}
				}
				break;
				
			case 'radio':
				if(el.hasClass('required')){
					var rad = $A(this.form[el.name]);
					var ok = false;
					rad.each(function(e,i){
						if(e.checked){
							ok = true;
						}
					});
					if(!ok){
						valid = false;
						if (el.title!="") this.setMsg(rad.getLast(), el.title);
						else this.setMsg(rad.getLast(), 'Please select an option');
						//this.setMsg(rad.getLast(), 'Please select an option');
					}else{
						valid = true;
						this.clearMsg(rad.getLast());
					}
				}
				break;
				
		}
		return valid;
	},
	
	setMsg: function(el, msg){
		if(msg == undefined){
			msg = el.title;
		}
		if(this.options.showErrorsInline){
			if(el.error == undefined){
				el.error = new Element('div').addClass(this.options.errorMsgClass).set('text', msg).injectAfter(el);
			}else{
				el.error.set('text', msg);
			}
			el.addClass(this.options.errorClass);
		}
	},
	
	clearMsg: function(el){
		el.removeClass(this.options.errorClass);
		if(el.error != undefined){
			el.error.destroy();
			el.error = undefined;
		}
	}
	
});

Validate.implement(new Options);
Validate.implement(new Events);


/*************************************************************/