/*
* 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', 'Υποχρεωτικό πεδίο.', 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 $100.00 .', function(v) {
        return Validation.get('IsEmpty').test(v) ||  /^\$?\-?([1-9]{1}[0-9]{0,2}(\,[0-9]{3})*(\.[0-9]{0,2})?|[1-9]{1}\d*(\.[0-9]{0,2})?|0(\.[0-9]{0,2})?|(\.[0-9]{1,2})?)$/.test(v)
    }],
    ['validate-nsfirstlevel', '', function(v) {
        return Validation.get('IsEmpty').test(v) ||  /^([a-zA-Z0-9-]*)$/.test(v)
    }],
    ['validate-float', 'Please enter a valid amount. For example 100.00 .', function(v) {
        // [$]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-card', 'Please insert a credit card number', function(v){
        return Validation.get('IsEmpty').test(v) ||  /^(\d{4}-){3}\d{4}$|^(\d{4} ){3}\d{4}$|^\d{16}$/.test(v)
    }],
    ['validate-ipv4', 'Εισάγετε μια έγκυρη IP.', function(v){
        return Validation.get('IsEmpty').test(v) ||  /^(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]\d|\d)(?:[.](?:25[0-5]|2[0-4]\d|1\d\d|[1-9]\d|\d)){3}$/.test(v)
    }],
    ['validate-ipv6', 'Εισάγετε μια έγκυρη IP.', function(v){
        return Validation.get('IsEmpty').test(v) ||  /^\s*((?=.*::.*)(::)?([0-9A-F]{1,4}(:(?=[0-9A-F])|(?!\2)(?!\5)(::)|\z)){0,7}|((?=.*::.*)(::)?([0-9A-F]{1,4}(:(?=[0-9A-F])|(?!\7)(?!\10)(::))){0,5}|([0-9A-F]{1,4}:){6})((25[0-5]|(2[0-4]|1[0-9]|[1-9]?)[0-9])(\.(?=.)|\z)){4}|([0-9A-F]{1,4}:){7}[0-9A-F]{1,4})\s*$/.test(v)
    }],
    ['validate-cvv', 'Εισάγετε τον 3-4ψήφιο αριθμό Cvv της κάρτας.', function(v){
        return Validation.get('IsEmpty').test(v) ||  /^([0-9]{3,4})$/.test(v)
    }],
    ['validate-ns', 'Εισάγετε ένα όνομα nameserver.', function(v){
        return Validation.get('IsEmpty').test(v) ||  /^[a-zA-Z0-9]+([a-zA-Z0-9\-\.]+)?\.(com|org|net|biz|info|mobi|eu|me|name|gr|gov.gr|org.gr|com.gr|net.gr|edu.gr)$/.test(v)
    }],
    ['validate-selection', 'Υποχρεωτική επιλογή.', function(v,elm){
        return elm.options ? elm.selectedIndex > 0 : !Validation.get('IsEmpty').test(v);
    }],
    ['validate-name', 'Eισάγετε ένα έγκυρο όνομα μόνο με λατινικούς χαρακτήρες.', function(v){
        return Validation.get('IsEmpty').test(v) ||  /^[a-zA-Z]+(([\'\,\.\- ][a-zA-Z ])?[a-zA-Z]*)*$/.test(v)
    }],

    ['validate-one-required', 'Υποχρεωτική τουλάχιστον μία επιλογή.', function (v,elm) {
        var p = elm.parentNode;
        var options = p.getElementsByTagName('INPUT');
        return $A(options).any(function(elm) {
            return $F(elm);
        });
    }]
    ]);