/*
     * 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  (ev.explicitOriginalTarget) {
          var submitValue = ev.explicitOriginalTarget.defaultValue;
        }
        else {
          var submitValue = document.activeElement.defaultValue;
        }
        if (submitValue != 'cancel') {
          // block redraw on resize
          curvyCorners.setWinResize(false);
          if(!this.validate()) Event.stop(ev);
          // re-enable redraws on window resize
          curvyCorners.setWinResize(true);
        }
        else {
          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-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);
          });
        }]
    ]);