/*
 * 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,
			useAdvices: true,
			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 useAdvices = this.options.useAdvices;
			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,
						useAdcice: useAdvices,
						onElementValidate: callback
					});
				});
			});
		}
	},
	onSubmit: function(ev)
	{
		if (!this.validate()) 
			Event.stop(ev);
	},
	validate: function()
	{
		var result = false;
		var useTitles = this.options.useTitles;
		var useAdvices = this.options.useAdvices;
		var callback = this.options.onElementValidate;
		if (this.options.stopOnFirst) 
		{
			result = Form.getElements(this.form).all(function(elm)
			{
				return Validation.validate(elm, {
					useTitle: useTitles,
					useAdvice: useAdvices,
					onElementValidate: callback
				});
			});
		}
		else 
		{
			result = Form.getElements(this.form).collect(function(elm)
			{
				return Validation.validate(elm, {
					useTitle: useTitles,
					useAdvice: useAdvices,
					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,
			useAdvice: false,
			onElementValidate: function(result, elm)
			{
			}
		}, options ||	{});
		elm = $(elm);
		var cn = elm.classNames();
		return result = cn.all(function(value)
		{
			var test = Validation.test(value, elm, options.useTitle, options.useAdvice);
			options.onElementValidate(test, elm);
			return test;
		});
	},
	test: function(name, elm, useTitle, useAdcice)
	{
		var v = Validation.get(name);
		var prop = '__advice' + name.camelize();
		try 
		{
			if (Validation.isVisible(elm) && !v.test($F(elm), elm)) 
			{
				if (!elm[prop] && useAdcice) 
				{
					var advice = Validation.getAdvice(name, elm);
					if (advice == null) 
					{
						// *** Auto-generated Advice
						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 Scriptaculous is loaded with Effect-Lib or not
					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);
	});
}
]]);