/*
* 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', 'Debe rellenar este campo para enviar su mensaje.', function(v) {
                    return !Validation.get('IsEmpty').test(v);
               }],
     ['validate-number', 'Introduzca un número válido en este campo.', function(v) {
                    return Validation.get('IsEmpty').test(v) || (!isNaN(v) && !/^\s+$/.test(v));
               }],
     ['validate-digits', 'Introduzca sólo números del 1 al 9. Evite caracteres como puntos o comas', function(v) {
                    return Validation.get('IsEmpty').test(v) ||  !/[^\d]/.test(v);
               }],
     ['validate-alpha', 'Introduzca sólo letras de la A a la Z en este campo.', function (v) {
                    return Validation.get('IsEmpty').test(v) ||  /^[a-zA-Z áéíóúAÉÍÓÚÑñ]+$/.test(v)
               }],
     ['validate-alphanum', 'Introduzca sólo letras de la A a la Z o números del 1 al 9. No se permiten otros caracteres', function(v) {
//                    return Validation.get('IsEmpty').test(v) ||  !/\W/.test(v)
                    return Validation.get('IsEmpty').test(v) ||  /^[a-zA-Z0-9 áéíóúAÉÍÓÚÑñ]+$/.test(v)
               }],
     ['validate-date', 'Introduzca una fecha válida.', function(v) {
                    var test = new Date(v);
                    return Validation.get('IsEmpty').test(v) || !isNaN(test);
               }],
     ['validate-email', 'Introduzca una dirección de correo válida, por ejemplo nombre@dominio.com.', function (v) {
                    return Validation.get('IsEmpty').test(v) || /\w{1,}[@][\w\-]{1,}([.]([\w\-]{1,})){1,3}$/.test(v)
               }],
     ['validate-url', 'Introduzca una URL válida.', 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', 'Introduzca la fecha en formato dd/mm/aaaa. Por ejemplo 12/07/1975 para el 12 de julio de 1975.', 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', 'Por favor, seleccione alguna opción.', function(v,elm){
                    return elm.options ? elm.selectedIndex > 0 : !Validation.get('IsEmpty').test(v);
               }],
     ['validate-one-required', 'Seleccione una de las opciones disponibles.', function (v,elm) {
                    var p = elm.parentNode;
                    var options = p.getElementsByTagName('INPUT');
                    return $A(options).any(function(elm) {
                         return $F(elm);
                    });
               }],
     ['validate-password', 'Su contraseña debe tener al menos 6 caracteres, combinar letras y números y no ser igual a su nombre', {
                    minLength : 6,
                    notOneOf : ['password','PASSWORD','1234567','0123456'],
                    notEqualToField : 'nombre'
               }],

     ['validate-password-confirm', 'La contraseña introducida no es igual a la anterior, reescríbala de nuevo.', {
                    equalToField : 'clave'
               }]
]);