/*
* 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({
	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 || 'Validacija neispravna.';
		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({
	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)); // || /^\s+$/.test(v));
});

Validation.addAllThese([
	['required', 'Ovo je obavezno polje.', function(v) {
			return !Validation.get('IsEmpty').test(v);
		}],
	['validate-number', 'Unesite decimalan broj (decimalno mjesto odvojite to\u010Dkom).', function(v) {
			return Validation.get('IsEmpty').test(v) || (!isNaN(v) && !/^\s+$/.test(v));
		}],
	['validate-digits', 'Unesite broj/eve (0-9) (zabranjeno je uno\u0161enje to\u010Dke, zareza i razmaka)', function(v) {
			return Validation.get('IsEmpty').test(v) ||  !/[^\d]/.test(v);
		}],
	['validate-alpha', 'Unesite slova (a-\u017e).', function (v) {
			return Validation.get('IsEmpty').test(v) ||  /^[a-zA-Z]+$/.test(v)
		}],
	['validate-alphanum', 'Unesite slova (a-\u017e) i broj/eve (0-9).', function(v) {
			return Validation.get('IsEmpty').test(v) ||  !/\W/.test(v)
		}],
	['validate-email', 'Unesite ispravnu e-po\u0161tu (ivan.horvat@vab-studio.hr).', function (v) {
			return Validation.get('IsEmpty').test(v) || /\w{1,}[@][\w\-]{1,}([.]([\w\-]{1,})){1,3}$/.test(v)
		}],
	['validate-url', 'Unesite to\u010Dnu adresu (http://www.vab-studio.hr).', function (v) {
			return Validation.get('IsEmpty').test(v) || /^(http|https|ftp):\/\/(([A-Z0-9][A-Z0-9_-]*)(\.[A-Z0-9][A-Z0-9_-]*)+)(:(\d+))?\/?/i.test(v)
		}],
	['validate-date', 'Unesite datum (dd.mm.gggg).', function(v) {
				if(Validation.get('IsEmpty').test(v)) return true;
				var regex = /^(\d{2})\.(\d{2})\.(\d{4})$/;
				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.$3, 10) == d.getFullYear());
			}],
	['validate-currency-dollar', 'Unesite iznos u kunama (100,00 kn).', function(v) {
			// [$]1[##][,###]+[.##]
			// [$]1###+[.##]
			// [$]0.##
			// [$].##
			return Validation.get('IsEmpty').test(v) ||  /^\-?([1-9]{1}[0-9]{0,2}(\,[0-9]{3})*(\.[0-9]{0,2})?|[1-9]{1}\d*(\.[0-9]{0,2})?|0(\.[0-9]{0,2})?|(\.[0-9]{1,2})?)?( kn)$/.test(v)
		}],
	['validate-selection', 'Odaberite jednu od ponu\u0111enih opcija.', function(v,elm){
			return elm.options ? elm.selectedIndex > 0 : !Validation.get('IsEmpty').test(v);
		}],
	['validate-one-required', 'Ozna\u010Dite jednu od ponu\u0111enih opcija.', function (v,elm) {
			var p = elm.parentNode;
			var options = p.getElementsByTagName('INPUT');
			return $A(options).any(function(elm) {
				return $F(elm);
			});
		}]
]);