//noinspection JSUnresolvedVariable
var mfContact = (function ($) {
    var _ready = false,
        _placeholderSupported,
        _maxlengthSupported,
        _forms = {},
        _translations = {
            checkedFields: (typeof contact_scripts_checked_fields !== 'undefined') ? contact_scripts_checked_fields : '',
            fieldRequired: (typeof contact_scripts_field_required !== 'undefined') ? contact_scripts_field_required : '',
            invalidEmail: (typeof contact_scripts_invalid_email !== 'undefined') ? contact_scripts_invalid_email : '',
            sendSuccess: (typeof contact_scripts_send_ok !== 'undefined') ? contact_scripts_send_ok : '',
            sendFail: (typeof contact_scripts_send_fail !== 'undefined') ? contact_scripts_send_fail : '',
            sending: (typeof contact_scripts_sending_message !== 'undefined') ? contact_scripts_sending_message : ''
        },
        _getFieldsSet = function(form, includeHidden) {
            if (typeof includeHidden === 'undefined' || !includeHidden) {
                return $('input[type=text], textarea', form);
            } else {
                return $('input[type=text], input[type=hidden], textarea', form);
            }
        },
        _canSend = function(formId) {
            var result = true,
                req = _forms[formId].required,
                val = _forms[formId].values,
                len = req.length,
                i;
            for (i = 0; i < len; i++) {
                if (val[req[i]] === '') { //required and empty means break
                    result = false;
                    break;
                }
            }
            return result;
        },
        _sendNoRemoting = function(form) {
            var formId = form.attr('id');
            var val = _forms[formId].values;
            $.ajax({
                type : 'POST',
                url: '/actions/sendcontactform.seam',
                contentType : 'application/x-www-form-urlencoded;charset=utf-8',
                data: {
                    sendFrom: val.from,
                    sendFromName: val.fullName,
                    sendMessage: val.message,
                    sendTo: document.domain,
                    sendLang: _forms[formId].lang
                },
                success: function(data) {
                    if (data === 'sent') {
                        _sendSuccessAction(form);
                    } else {
                        _sendFailAction(form);
                    }
                },
                error: function() {
                    _sendFailAction(form);
                }
            });
        },
        _sendViaRemoting = function(form, checkbox) {
            var formId = form.attr('id');
            var val = _forms[formId].values;
            var type = _forms[formId].type;
            var message = _prependCheckboxesToMessage(form);
            //String handleContact(String name, String email, String phone, String message, String type)
            Seam.Component.getInstance('contactAction').handleContact(val.fullName, val.email, val.phone, message, type, function(data) {
                if (data === 'ok') {
                    _sendSuccessAction(form);
                } else {
                    _sendFailAction(form);
                }
            });
        },
        _sendGuestbook = function(form) {
            var val = _forms[form.attr('id')].values;
            Seam.Component.getInstance('guestbookActions').addEntry(val.domain, val.author, val.text, function(result) {
                if (result) {
                    _sendSuccessAction(form);
                } else {
                    _sendFailAction(form);
                }
            });
        },
        _sendSuccessAction = function(form) {
            var formId = form.attr('id');
            var successMessage = _translations.sendSuccess;
            //add custom message if exists
            if (typeof _forms[formId].customSuccessMessage !== 'undefined') {successMessage = _forms[formId].customSuccessMessage;}
            $('.form_overlay', form)
                .addClass('green_overlay')
                .children()
                .html(successMessage)
                .parent()
                .animate({'opacity' : 1}, 5000, function() { //animate to fake delay (for jQuery < 1.4)
                    $(this).fadeOut(1000, function() {
                        $(this).remove();
                    });
                });
            _gaNotification(formId, 'successOnSend');
            _clearFields(form);
            var callback = _forms[formId].callback;
            if (typeof callback === 'function') {callback();}
        },
        _sendFailAction = function(form) {
            var formId = form.attr('id');
            var failMessage = _translations.sendFail;
            //add custom message if exists
            if (typeof _forms[formId].customFailMessage !== 'undefined') {failMessage = _forms[formId].customFailMessage;}
            $('.form_overlay', form).addClass('red_overlay').children().html(failMessage);
            _gaNotification(formId, 'errorOnSend');
        },
        _prependCheckboxesToMessage = function(form) {
            var formId = form.attr('id');
            var checkboxes = _forms[formId].checkboxes;
            var message = _forms[formId].values.message || '';
            if (typeof checkboxes !== 'undefined') {
                var checkedValues = [];
                for (var i in checkboxes) {
                    if (checkboxes.hasOwnProperty(i) && checkboxes[i]) {
                        checkedValues.push(i);
                    }
                }
                if (checkedValues.length > 0) {
                    checkedValues = checkedValues.join(',');
                    message += '\n' + _translations.checkedFields + ': ' + checkedValues;
                }
            }
            return message;
        },
        _gaNotification = function(formId, status) {
            var page;
            if (typeof _forms[formId].gaPage === 'undefined') {
                var path = window.location.pathname;
                page = path.substring(path.lastIndexOf('/') + 1).replace('.html', '');
            } else {
                page = _forms[formId].gaPage;
            }
            try {
                _gaq.push(['_trackEvent', status, page]);
            } catch (err) {}

            if (typeof sponsoredLinksNewPageName !== 'undefined' && page == sponsoredLinksNewPageName && status == 'successOnSend') {
                var iframe = document.createElement('iframe');
                iframe.style.width = '0px';
                iframe.style.height = '0px';
                document.body.appendChild(iframe);
                iframe.src = '/adwords/zapytanie-adwords.html';
            }
        },
        _send = function(form) {
            var formId = form.attr('id');
            $('input, textarea', form).blur();
            if (_canSend(formId)) {
                form.prepend('<div class="form_overlay"><span class="ajax_process">' + _translations.sending + '</span></div>');

                switch (_forms[formId].sendMethod) {
                    case 'remoting':
                        _sendViaRemoting(form);
                        break;
                    case 'ajax':
                        _sendNoRemoting(form);
                        break;
                    case 'guestbook':
                        _sendGuestbook(form);
                        break;
                    default:
                        //do nothing when send method not set
                        break;
                }
                _gaNotification(formId, 'trySend');
            }
        },
        _validateEmpty = function(field, form) {
            var fName = field.attr('name');
            var fValue = field.val();
            var formId = form.attr('id');
            var placeholderValue = field.attr('placeholder') || '';
            $('.error_' + fName, form).remove();
            if (fValue === '' || fValue === placeholderValue) {
                _forms[formId].values[fName] = '';
                _addErrorMessage(field, formId, _translations.fieldRequired, true);
            } else {
                if ((fName === 'email') && (!isValidEmail(fValue))) {
                    _forms[formId].values[fName] = '';
                    _addErrorMessage(field, formId, _translations.invalidEmail);
                } else {
                    _forms[formId].values[fName] = fValue;
                    field.removeClass('error').removeClass('empty').addClass('ok');
                }
            }
        },
        _addErrorMessage = function(field, formId, message, isEmpty) {
            var fName = field.attr('name');
            var extraClass = _forms[formId].errorClasses || '';
            if ($.isArray(extraClass)) {
                extraClass = extraClass.join(' ');
            }
            field.removeClass('ok').removeClass('empty').addClass('error')
                .after('<span class="errors error_' + fName + ' ' + extraClass + '">' + message + '</span>');
            if (isEmpty) {field.addClass('empty');}
        },
        _parseTextareaMaxlength = function(field) {
            var elem = field[0].nodeName.toLowerCase();
            if (!_maxlengthSupported && elem === 'textarea' && field.attr('maxlength') !== undefined) {
                var max = field.attr('maxlength');
                field.bind('keyup paste blur', function(e) {
                    window.setTimeout(function() {
                        if (field.val().length > max) {
                            field.val(field.val().substr(0, max));
                        }
                    }, 1); //1 milisecond timeout for onpaste
                });
            }
        },
        _parsePlaceholder = function(field) {
            if (!_placeholderSupported && field.attr('placeholder') !== undefined) {
                var phText = field.attr('placeholder');
                field[0].value = phText;
                field.focus(function() {
                    if (this.value === phText) {this.value = '';}
                }).blur(function() {
                    if (this.value === '') {this.value = phText;}
                });
            }
        },
        _parseFields = function(form) {
            var id = form.attr('id');
            _getFieldsSet(form, true).each(function() {
                var field = $(this);
                var name = field.attr('name');
                _forms[id].values[name] = '';
                if (this.getAttribute('data-contact-required')) {
                    _forms[id].required.push(name);
                }

                _parsePlaceholder($(this)); //adds old browsers support for placeholder attribute if needed
                _parseTextareaMaxlength($(this)); //and maxlength for textareas

                field.blur(function() {
                    _validateEmpty(field, form);
                }).focus(function() {
                    field.removeClass('error');
                    $('.errors', field).remove();
                });
            });
        },
        _parseCheckboxes = function(form) {
            var id = form.attr('id');
            var checkboxes = $('input[type=checkbox]', form);
            if (checkboxes.length > 0) {
                _forms[id].checkboxes = {};
                checkboxes.each(function() {
                    var checkbox = $(this);
                    _forms[id].checkboxes[checkbox.val()] = checkbox.is(':checked');
                    checkbox.unbind('change').change(function() {
                        _forms[id].checkboxes[$(this).val()] = $(this).is(':checked');
                    });
                });
            }
        },
        _registerForm = function(form) {
            var id = form.attr('id');
            _forms[id] = {};

            var lang = form[0].getAttribute('data-contact-lang');
            if (lang) {_forms[id].lang = lang;}
            _forms[id].type = form[0].getAttribute('data-contact-type');

            var sendMethod = form[0].getAttribute('data-contact-send-method');
            _forms[id].sendMethod = (sendMethod) ? sendMethod : 'remoting';

            var customSuccessMessage = form[0].getAttribute('data-contact-custom-success-message');
            if (customSuccessMessage) {_forms[id].customSuccessMessage = customSuccessMessage;}

            var customFailMessage = form[0].getAttribute('data-contact-custom-fail-message');
            if (customFailMessage) {_forms[id].customFailMessage = customFailMessage;}

            _forms[id].callback = form[0].onsubmit;
            form[0].onsubmit = null;
            _forms[id].values = {};
            _forms[id].required = [];

            var gaPage = form[0].getAttribute('data-contact-ga-page');
            if (gaPage) {
                _forms[id].gaPage = gaPage;
            }

            var errorClasses = form[0].getAttribute('data-contact-error-class');
            if (errorClasses) {
                _forms[id].errorClasses = errorClasses.split(',');
            }


            _parseFields(form);
            _parseCheckboxes(form);
            form.unbind('submit').submit(function() {
                _send(form);
                return false;
            });
            $('.clear_form', form).unbind('click').click(function() {
                _clearFields(form);
                return false;
            });
        },
        _clearFields = function(form) {
            $('.errors', form).remove();
            _getFieldsSet(form).each(function() {
                var val = (!_placeholderSupported && $(this).attr('placeholder') !== undefined) ? $(this).attr('placeholder') : '';
                $(this).removeClass('ok').removeClass('error').removeClass('empty').val(val);
            });
            $('input[type=checkbox]', form).attr('checked',false);
        },
        _setTranslations = function(translations) {
            $.extend(_translations, translations);
        },
        _init = function() {
            var i = document.createElement('input');
            _placeholderSupported = (i.placeholder !== undefined);
            var t = document.createElement('textarea');
            _maxlengthSupported = (t.maxLength !== undefined);
            _ready = true;
        },
        _registerAllForms = function() {
            if (!_ready) {
                _init();
            }
            $('form.contact_form').each(function() {
                _registerForm($(this));
            });
        },
        _registerSingleForm = function(form) {
            if (!_ready) {
                _init();
            }
            _registerForm(form);
        }

    return {
        canSend: function(formId) {
            var form = $('#' + formId);
            _getFieldsSet(form).blur();
            return _canSend(formId);
        },
        setTranslations: _setTranslations,
        registerForm: _registerSingleForm,
        registerAllForms: _registerAllForms,
        debug: function() {
            return [_forms, _translations, _placeholderSupported, _maxlengthSupported];
        }
    }
})(jQuery);

jQuery(function() {
	mfContact.registerAllForms();
});