/*
* Really easy field validation with Prototype
* http://tetlaw.id.au/view/javascript/really-easy-field-validation
* Andrew Tetlaw
* Version 1.5.4.1 (2007-01-05)
* 
* Copyright (c) 2007 Andrew Tetlaw
* 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.
* 
*/
var Validator=Class.create();Validator.prototype={initialize:function(className,error,test,options){if(typeof test=='function'){this.options=$H(options);this._test=test;}else{this.options=$H(test);this._test=function(){return true};}
this.error=error||'Validation failed.';this.className=className;},test:function(v,elm){return(this._test(v,elm)&&this.options.all(function(p){return Validator.methods[p.key]?Validator.methods[p.key](v,elm,p.value):true;}));}}
Validator.methods={pattern:function(v,elm,opt){return Validation.get('IsEmpty').test(v)||opt.test(v)},minLength:function(v,elm,opt){return v.length>=opt},maxLength:function(v,elm,opt){return v.length<=opt},min:function(v,elm,opt){return v>=parseFloat(opt)},max:function(v,elm,opt){return v<=parseFloat(opt)},notOneOf:function(v,elm,opt){return $A(opt).all(function(value){return v!=value;})},oneOf:function(v,elm,opt){return $A(opt).any(function(value){return v==value;})},is:function(v,elm,opt){return v==opt},isNot:function(v,elm,opt){return v!=opt},equalToField:function(v,elm,opt){return v==$F(opt)},notEqualToField:function(v,elm,opt){return v!=$F(opt)},include:function(v,elm,opt){return $A(opt).all(function(value){return Validation.get(value).test(v,elm);})}}
var Validation=Class.create();Validation.prototype={initialize:function(form,options){this.options=Object.extend({onSubmit:true,stopOnFirst:false,immediate:false,focusOnError:true,useTitles:false,onFormValidate:function(result,form){},onElementValidate:function(result,elm){}},options||{});this.form=$(form);if(this.options.onSubmit)Event.observe(this.form,'submit',this.onSubmit.bind(this),false);if(this.options.immediate){var useTitles=this.options.useTitles;var callback=this.options.onElementValidate;Form.getElements(this.form).each(function(input){Event.observe(input,'blur',function(ev){Validation.validate(Event.element(ev),{useTitle:useTitles,onElementValidate:callback});});});}},onSubmit:function(ev){if(!this.validate())Event.stop(ev);},validate:function(){var result=false;var useTitles=this.options.useTitles;var callback=this.options.onElementValidate;if(this.options.stopOnFirst){result=Form.getElements(this.form).all(function(elm){return Validation.validate(elm,{useTitle:useTitles,onElementValidate:callback});});}else{result=Form.getElements(this.form).collect(function(elm){return Validation.validate(elm,{useTitle:useTitles,onElementValidate:callback});}).all();}
if(!result&&this.options.focusOnError){Form.getElements(this.form).findAll(function(elm){return $(elm).hasClassName('validation-failed')}).first().focus()}
this.options.onFormValidate(result,this.form);return result;},reset:function(){Form.getElements(this.form).each(Validation.reset);}}
Object.extend(Validation,{validate:function(elm,options){options=Object.extend({useTitle:false,onElementValidate:function(result,elm){}},options||{});elm=$(elm);var cn=elm.classNames();return result=cn.all(function(value){var test=Validation.test(value,elm,options.useTitle);options.onElementValidate(test,elm);return test;});},test:function(name,elm,useTitle){var v=Validation.get(name);var prop='__advice'+name.camelize();try{if(Validation.isVisible(elm)&&!v.test($F(elm),elm)){if(!elm[prop]){var advice=Validation.getAdvice(name,elm);if(advice==null){var errorMsg=useTitle?((elm&&elm.title)?elm.title:v.error):v.error;advice='<div class="validation-advice" id="advice-'+name+'-'+Validation.getElmID(elm)+'" style="display:none">'+errorMsg+'</div>'
switch(elm.type.toLowerCase()){case'checkbox':case'radio':var p=elm.parentNode;if(p){new Insertion.Bottom(p,advice);}else{new Insertion.After(elm,advice);}
break;default:new Insertion.After(elm,advice);}
advice=Validation.getAdvice(name,elm);}
if(typeof Effect=='undefined'){advice.style.display='block';}else{new Effect.Appear(advice,{duration:1});}}
elm[prop]=true;elm.removeClassName('validation-passed');elm.addClassName('validation-failed');return false;}else{var advice=Validation.getAdvice(name,elm);if(advice!=null)advice.hide();elm[prop]='';elm.removeClassName('validation-failed');elm.addClassName('validation-passed');return true;}}catch(e){throw(e)}},isVisible:function(elm){while(elm.tagName!='BODY'){if(!$(elm).visible())return false;elm=elm.parentNode;}
return true;},getAdvice:function(name,elm){return $('advice-'+name+'-'+Validation.getElmID(elm))||$('advice-'+Validation.getElmID(elm));},getElmID:function(elm){return elm.id?elm.id:elm.name;},reset:function(elm){elm=$(elm);var cn=elm.classNames();cn.each(function(value){var prop='__advice'+value.camelize();if(elm[prop]){var advice=Validation.getAdvice(value,elm);advice.hide();elm[prop]='';}
elm.removeClassName('validation-failed');elm.removeClassName('validation-passed');});},add:function(className,error,test,options){var nv={};nv[className]=new Validator(className,error,test,options);Object.extend(Validation.methods,nv);},addAllThese:function(validators){var nv={};$A(validators).each(function(value){nv[value[0]]=new Validator(value[0],value[1],value[2],(value.length>3?value[3]:{}));});Object.extend(Validation.methods,nv);},get:function(name){return Validation.methods[name]?Validation.methods[name]:Validation.methods['_LikeNoIDIEverSaw_'];},methods:{'_LikeNoIDIEverSaw_':new Validator('_LikeNoIDIEverSaw_','',{})}});Validation.add('IsEmpty','',function(v){return((v==null)||(v.length==0));});Validation.addAllThese([['required','This is a required field.',function(v){return!Validation.get('IsEmpty').test(v);}],['validate-number','Please enter a valid number in this field.',function(v){return Validation.get('IsEmpty').test(v)||(!isNaN(v)&&!/^\s+$/.test(v));}],['validate-digits','Please use numbers only in this field. please avoid spaces or other characters such as dots or commas.',function(v){return Validation.get('IsEmpty').test(v)||!/[^\d]/.test(v);}],['validate-alpha','Please use letters only (a-z) in this field.',function(v){return Validation.get('IsEmpty').test(v)||/^[a-zA-Z]+$/.test(v)}],['validate-alphanum','Please use only letters (a-z) or numbers (0-9) only in this field. No spaces or other characters are allowed.',function(v){return Validation.get('IsEmpty').test(v)||!/\W/.test(v)}],['validate-date','Please enter a valid date.',function(v){var test=new Date(v);return Validation.get('IsEmpty').test(v)||!isNaN(test);}],['validate-email','Please enter a valid email address. For example fred@domain.com .',function(v){return Validation.get('IsEmpty').test(v)||/\w{1,}[@][\w\-]{1,}([.]([\w\-]{1,})){1,3}$/.test(v)}],['validate-url','Please enter a valid URL.',function(v){return Validation.get('IsEmpty').test(v)||/^(http|https|ftp):\/\/(([A-Z0-9][A-Z0-9_-]*)(\.[A-Z0-9][A-Z0-9_-]*)+)(:(\d+))?\/?/i.test(v)}],['validate-date-au','Please use this date format: dd/mm/yyyy. For example 17/03/2006 for the 17th of March, 2006.',function(v){if(Validation.get('IsEmpty').test(v))return true;var regex=/^(\d{2})\/(\d{2})\/(\d{4})$/;if(!regex.test(v))return false;var d=new Date(v.replace(regex,'$2/$1/$3'));return(parseInt(RegExp.$2,10)==(1+d.getMonth()))&&(parseInt(RegExp.$1,10)==d.getDate())&&(parseInt(RegExp.$3,10)==d.getFullYear());}],['validate-currency-dollar','Please enter a valid $ amount. For example $100.00 .',function(v){return Validation.get('IsEmpty').test(v)||/^\$?\-?([1-9]{1}[0-9]{0,2}(\,[0-9]{3})*(\.[0-9]{0,2})?|[1-9]{1}\d*(\.[0-9]{0,2})?|0(\.[0-9]{0,2})?|(\.[0-9]{1,2})?)$/.test(v)}],['validate-selection','Please make a selection',function(v,elm){return elm.options?elm.selectedIndex>0:!Validation.get('IsEmpty').test(v);}],['validate-one-required','Please select one of the above options.',function(v,elm){var p=elm.parentNode;var options=p.getElementsByTagName('INPUT');return $A(options).any(function(elm){return $F(elm);});}]]);
var Validator = Class.create();

Validator.prototype = {
	initialize : function(className, error, test, options) {
		if(typeof test == 'function'){
			this.options = $H(options);
			this._test = test;
		} else {
			this.options = $H(test);
			this._test = function(){return true};
		}
		this.error = error || 'Validation failed.';
		this.className = className;
	},
	test : function(v, elm) {
		return (this._test(v,elm) && this.options.all(function(p){
			return Validator.methods[p.key] ? Validator.methods[p.key](v,elm,p.value) : true;
		}));
	}
}
Validator.methods = {
	pattern : function(v,elm,opt) {return Validation.get('IsEmpty').test(v) || opt.test(v)},
	minLength : function(v,elm,opt) {return v.length >= opt},
	maxLength : function(v,elm,opt) {return v.length <= opt},
	min : function(v,elm,opt) {return v >= parseFloat(opt)}, 
	max : function(v,elm,opt) {return v <= parseFloat(opt)},
	notOneOf : function(v,elm,opt) {return $A(opt).all(function(value) {
		return v != value;
	})},
	oneOf : function(v,elm,opt) {return $A(opt).any(function(value) {
		return v == value;
	})},
	is : function(v,elm,opt) {return v == opt},
	isNot : function(v,elm,opt) {return v != opt},
	equalToField : function(v,elm,opt) {return v == $F(opt)},
	notEqualToField : function(v,elm,opt) {return v != $F(opt)},
	include : function(v,elm,opt) {return $A(opt).all(function(value) {
		return Validation.get(value).test(v,elm);
	})}
}

var Validation = Class.create();

Validation.prototype = {
	initialize : function(form, options){
		this.options = Object.extend({
			onSubmit : true,
			stopOnFirst : false,
			immediate : false,
			focusOnError : true,
			useTitles : false,
			onFormValidate : function(result, form) {},
			onElementValidate : function(result, elm) {}
		}, options || {});
		this.form = $(form);
		if(this.options.onSubmit) Event.observe(this.form,'submit',this.onSubmit.bind(this),false);
		if(this.options.immediate) {
			var useTitles = this.options.useTitles;
			var callback = this.options.onElementValidate;
			Form.getElements(this.form).each(function(input) { // Thanks Mike!
				Event.observe(input, 'blur', function(ev) { Validation.validate(Event.element(ev),{useTitle : useTitles, onElementValidate : callback}); });
			});
		}
	},
	onSubmit :  function(ev){
		if(!this.validate()) Event.stop(ev);
	},
	validate : function() {
		var result = false;
		var useTitles = this.options.useTitles;
		var callback = this.options.onElementValidate;
		if(this.options.stopOnFirst) {
			result = Form.getElements(this.form).all(function(elm) { return Validation.validate(elm,{useTitle : useTitles, onElementValidate : callback}); });
		} else {
			result = Form.getElements(this.form).collect(function(elm) { return Validation.validate(elm,{useTitle : useTitles, onElementValidate : callback}); }).all();
		}
		if(!result && this.options.focusOnError) {
			Form.getElements(this.form).findAll(function(elm){return $(elm).hasClassName('validation-failed')}).first().focus()
		}
		this.options.onFormValidate(result, this.form);
		return result;
	},
	reset : function() {
		Form.getElements(this.form).each(Validation.reset);
	}
}

Object.extend(Validation, {
	validate : function(elm, options){
		options = Object.extend({
			useTitle : false,
			onElementValidate : function(result, elm) {}
		}, options || {});
		elm = $(elm);
		var cn = elm.classNames();
		return result = cn.all(function(value) {
			var test = Validation.test(value,elm,options.useTitle);
			options.onElementValidate(test, elm);
			return test;
		});
	},
	test : function(name, elm, useTitle) {
		var v = Validation.get(name);
		var prop = '__advice'+name.camelize();
		try {
		if(Validation.isVisible(elm) && !v.test($F(elm), elm)) {
			if(!elm[prop]) {
				var advice = Validation.getAdvice(name, elm);
				if(advice == null) {
					var errorMsg = useTitle ? ((elm && elm.title) ? elm.title : v.error) : v.error;
					advice = '<div class="validation-advice" id="advice-' + name + '-' + Validation.getElmID(elm) +'" style="display:none">' + errorMsg + '</div>'
					switch (elm.type.toLowerCase()) {
						case 'checkbox':
						case 'radio':
							var p = elm.parentNode;
							if(p) {
								new Insertion.Bottom(p, advice);
							} else {
								new Insertion.After(elm, advice);
							}
							break;
						default:
							new Insertion.After(elm, advice);
				    }
					advice = Validation.getAdvice(name, elm);
				}
				if(typeof Effect == 'undefined') {
					advice.style.display = 'block';
				} else {
					new Effect.Appear(advice, {duration : 1 });
				}
			}
			elm[prop] = true;
			elm.removeClassName('validation-passed');
			elm.addClassName('validation-failed');
			return false;
		} else {
			var advice = Validation.getAdvice(name, elm);
			if(advice != null) advice.hide();
			elm[prop] = '';
			elm.removeClassName('validation-failed');
			elm.addClassName('validation-passed');
			return true;
		}
		} catch(e) {
			throw(e)
		}
	},
	isVisible : function(elm) {
		while(elm.tagName != 'BODY') {
			if(!$(elm).visible()) return false;
			elm = elm.parentNode;
		}
		return true;
	},
	getAdvice : function(name, elm) {
		return $('advice-' + name + '-' + Validation.getElmID(elm)) || $('advice-' + Validation.getElmID(elm));
	},
	getElmID : function(elm) {
		return elm.id ? elm.id : elm.name;
	},
	reset : function(elm) {
		elm = $(elm);
		var cn = elm.classNames();
		cn.each(function(value) {
			var prop = '__advice'+value.camelize();
			if(elm[prop]) {
				var advice = Validation.getAdvice(value, elm);
				advice.hide();
				elm[prop] = '';
			}
			elm.removeClassName('validation-failed');
			elm.removeClassName('validation-passed');
		});
	},
	add : function(className, error, test, options) {
		var nv = {};
		nv[className] = new Validator(className, error, test, options);
		Object.extend(Validation.methods, nv);
	},
	addAllThese : function(validators) {
		var nv = {};
		$A(validators).each(function(value) {
				nv[value[0]] = new Validator(value[0], value[1], value[2], (value.length > 3 ? value[3] : {}));
			});
		Object.extend(Validation.methods, nv);
	},
	get : function(name) {
		return  Validation.methods[name] ? Validation.methods[name] : Validation.methods['_LikeNoIDIEverSaw_'];
	},
	methods : {
		'_LikeNoIDIEverSaw_' : new Validator('_LikeNoIDIEverSaw_','',{})
	}
});

Validation.add('IsEmpty', '', function(v) {
				return  ((v == null) || (v.length == 0)); // || /^\s+$/.test(v));
			});

Validation.addAllThese([
	['required', 'This is a required field.', function(v) {
				return !Validation.get('IsEmpty').test(v);
			}],
	['validate-number', 'Please enter a valid number in this field.', function(v) {
				return Validation.get('IsEmpty').test(v) || (!isNaN(v) && !/^\s+$/.test(v));
			}],
	['validate-digits', 'Please use numbers only in this field. please avoid spaces or other characters such as dots or commas.', function(v) {
				return Validation.get('IsEmpty').test(v) ||  !/[^\d]/.test(v);
			}],
	['validate-alpha', 'Please use letters only (a-z) in this field.', function (v) {
				return Validation.get('IsEmpty').test(v) ||  /^[a-zA-Z]+$/.test(v)
			}],
	['validate-alphanum', 'Please use only letters (a-z) or numbers (0-9) only in this field. No spaces or other characters are allowed.', function(v) {
				return Validation.get('IsEmpty').test(v) ||  !/\W/.test(v)
			}],
	['validate-date', 'Please enter a valid date.', function(v) {
				var test = new Date(v);
				return Validation.get('IsEmpty').test(v) || !isNaN(test);
			}],
	['validate-email', 'Please enter a valid email address. For example fred@domain.com .', function (v) {
				return Validation.get('IsEmpty').test(v) || /\w{1,}[@][\w\-]{1,}([.]([\w\-]{1,})){1,3}$/.test(v)
			}],
	['validate-url', 'Please enter a valid URL.', function (v) {
				return Validation.get('IsEmpty').test(v) || /^(http|https|ftp):\/\/(([A-Z0-9][A-Z0-9_-]*)(\.[A-Z0-9][A-Z0-9_-]*)+)(:(\d+))?\/?/i.test(v)
			}],
	['validate-date-au', 'Please use this date format: dd/mm/yyyy. For example 17/03/2006 for the 17th of March, 2006.', function(v) {
				if(Validation.get('IsEmpty').test(v)) return true;
				var regex = /^(\d{2})\/(\d{2})\/(\d{4})$/;
				if(!regex.test(v)) return false;
				var d = new Date(v.replace(regex, '$2/$1/$3'));
				return ( parseInt(RegExp.$2, 10) == (1+d.getMonth()) ) && 
							(parseInt(RegExp.$1, 10) == d.getDate()) && 
							(parseInt(RegExp.$3, 10) == d.getFullYear() );
			}],
	['validate-currency-dollar', 'Please enter a valid $ amount. For example $100.00 .', function(v) {
				// [$]1[##][,###]+[.##]
				// [$]1###+[.##]
				// [$]0.##
				// [$].##
				return Validation.get('IsEmpty').test(v) ||  /^\$?\-?([1-9]{1}[0-9]{0,2}(\,[0-9]{3})*(\.[0-9]{0,2})?|[1-9]{1}\d*(\.[0-9]{0,2})?|0(\.[0-9]{0,2})?|(\.[0-9]{1,2})?)$/.test(v)
			}],
	['validate-selection', 'Please make a selection', function(v,elm){
				return elm.options ? elm.selectedIndex > 0 : !Validation.get('IsEmpty').test(v);
			}],
	['validate-one-required', 'Please select one of the above options.', function (v,elm) {
				var p = elm.parentNode;
				var options = p.getElementsByTagName('INPUT');
				return $A(options).any(function(elm) {
					return $F(elm);
				});
			}]
]);
