/*
	* 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) { // 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="powermail_mandatory_js" 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', 'Das ist ein Pflichtfeld', function(v) {
					return !Validation.get('IsEmpty').test(v);
				}],
		['validate-number', 'Bitte tragen Sie eine Nummer ein', function(v) {
					return Validation.get('IsEmpty').test(v) || (!isNaN(v) && !/^\s+$/.test(v));
				}],
		['validate-digits', 'Bitte tragen Sie eine Nummer ohne Komma oder Punkt ein', function(v) {
					return Validation.get('IsEmpty').test(v) ||  !/[^\d]/.test(v);
				}],
		['validate-alpha', 'Bitte nutzen Sie nur Buchstaben (a-z)', function (v) {
					return Validation.get('IsEmpty').test(v) ||  /^[a-zA-Z\-' öäüÖÄÜß]+$/.test(v)
				}],
		['validate-alphanum', 'Bitte nutzen Sie hier nur Buchstaben (a-z) oder Zahlen (0-9) nur in diesem Feld. Leer- oder andere Zeichen sind nicht erlaubt', function(v) {
					return Validation.get('IsEmpty').test(v) ||  !/\W/.test(v)
				}],
		['validate-date', 'Bitte tragen Sie ein korrektes Datum ein', function(v) {
					var test = new Date(v);
					return Validation.get('IsEmpty').test(v) || !isNaN(test);
				}],
		['validate-email', 'Bitte tragen Sie eine gültige E-Mail Adresse ein (test@test.de)', function (v) {
					return Validation.get('IsEmpty').test(v) || /\w{1,}[@][\w\-]{1,}([.]([\w\-]{1,})){1,3}$/.test(v)
				}],
		['validate-url', 'Bitte tragen Sie eine gültige URL ein (http://www.test.de)', function (v) {
					return Validation.get('IsEmpty').test(v) || /^(http|https|ftp):\/\/(([A-Z0-9][A-Z0-9_-]*)(\.[A-Z0-9][A-Z0-9_-]*)+)(:(\d+))?\/?/i.test(v)
				}],
		['validate-date-au', 'Bitte tragen Sie das Datum so ein: dd/mm/yyyy.(Beispiel 17/03/2006)', function(v) {
					if(Validation.get('IsEmpty').test(v)) return true;
					var regex = /^(\d{2})\/(\d{2})\/(\d{4})$/;
					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', 'Bitte tragen Sie einen gültigen Betrag ein ($100.00)', function(v) {
					// [$]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', 'Bitte treffen Sie eine Auswahl', function(v,elm){
					return elm.options ? elm.selectedIndex > 0 : !Validation.get('IsEmpty').test(v);
				}],
		['validate-one-required', 'Bitte füllen Sie min. 1 Feld aus', function (v,elm) {
					var p = elm.parentNode;
					var options = p.getElementsByTagName('INPUT');
					return $A(options).any(function(elm) {
						return $F(elm);
					});
				}]
	]);