/*
* 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="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-city', 'Please use only letters (a-z) or (.-) or spaces in this field. Please avoid other characters.', function(v) {
    return Validation.get('IsEmpty').test(v) ||  /^[^0-9#'+*?@<>%§"!=_(),|:;€~]{3,}$/.test(v)
   }],
 ['validate-zipcode', 'Please enter a valid zipcode. Please use only letters (A-Z) or numbers (0-9) or spaces in this field.', function(v) {
    return Validation.get('IsEmpty').test(v) ||  /[0-9a-zA-Z- ]{4,}$/.test(v)
   }],
 ['validate-text', 'Please enter only regular text in this field. No HTML tags or (http\'@<>_|~**++##--==!!??§§$$[]{}www....) are allowed.', {
        pattern : new RegExp("^[^'@<>_|~]*$"),
    notOneOf : ['http','HTTP','www','WWW','**','++','##','--','!!!','???','§§','$$','==']
   }],
 ['validate-name', 'Please use only letters (a-z) or (.-) or spaces in this field. Please avoid other characters.', function(v) {
    return Validation.get('IsEmpty').test(v) ||  /^[^0-9#'+*?@<>%§"!=_/(),|:;€~&]{3,}$/.test(v)
   }],
 ['validate-headline', 'Please use only letters (a-z) or numbers or (.,-!? ) in this field. Please avoid other characters.', function(v) {
    return Validation.get('IsEmpty').test(v) ||  /^[^#'+*@<>%§"=_/()|:&;€~]*$/.test(v)
   }],
 ['validate-company', 'Please use only letters (a-z) or (&.-) or spaces in this field. Please avoid other characters.', function(v) {
    return Validation.get('IsEmpty').test(v) ||  /^[^#'+*?@<>%§"!=_/(),|:;€~]{3,}$/.test(v)
   }],
 ['validate-alphanum', 'Please use only letters (a-z) or numbers (0-9) only in this field. No spaces or other characters are allowed.', function(v) {
    return Validation.get('IsEmpty').test(v) ||  !/\W/.test(v)
   }],
 ['validate-date', 'Please enter a valid date.', function(v) {
    var test = new Date(v);
    return Validation.get('IsEmpty').test(v) || !isNaN(test);
   }],
 ['validate-email', 'Please enter a valid e-mail address. For example fred@domain.com .', function (v) {
    return Validation.get('IsEmpty').test(v) || /\w{1,}[@][\w\-]{1,}([.]([\w\-]{1,})){1,3}$/.test(v)
   }],
 ['validate-url', 'Please enter a valid URL. For example http://www.domain.com .', function (v) {
    return Validation.get('IsEmpty').test(v) || /^(http|https):\/\/(([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.$3, 10) == d.getFullYear() );
   }],
 ['validate-currency-dollar', 'Please enter a valid amount. For example 1000.00 .', function(v) {
    // 1[##][###]+[.##]
    // 1###+[.##]
    // 0.##
    // .##
    return Validation.get('IsEmpty').test(v) ||  /^([1-9]{1}[0-9]{0,2}([0-9]{3})*(\.[0-9]{0,2})?|[1-9]{1}\d*(\.[0-9]{0,2})?|0(\.[0-9]{0,2})?|(\.[0-9]{1,2})?)$/.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);
    });
   }]
]);