/*
* Simple jQuery Form Validation Plugin
* http://github.com/davist11/jQuery-Simple-Validate
*
* Copyright (c) 2010 Trevor Davis (http://trevordavis.net)
* Dual licensed under the MIT and GPL licenses.
* Uses the same license as jQuery, see:
* http://jquery.org/license
*
* @version 0.1
*
* Example usage:
* $('form.required-form').simpleValidate({
*   errorClass: 'error',
*   errorText: '{label} is a required field.',
*   emailErrorText: 'Please enter a valid {label}',
*   errorElement: 'strong',
*   removeLabelChar: '*',
*   inputErrorClass: '',
*   completeCallback: '',
*   ajaxRequest: false
* });
*/
; (function($) {
    $.fn.simpleValidate = function(options) {
        var opts = $.extend({}, $.fn.simpleValidate.defaults, options);

        return this.each(function() {
            var $this = $(this),
					o = $.meta ? $.extend({}, opts, $this.data()) : opts,
					errorMsgType = o.errorText.search(/{label}/);

            //When the form is submitted
            $this.bind('submit', function(e) {
                var hasError = false;

                //Hide any errors that are already showing
                $this.find(o.errorElement + '.' + o.errorClass).remove();
                $this.find(':input.' + o.inputErrorClass).removeClass(o.inputErrorClass);

                //Get all the required inputs
                $this.find(':input.required').each(function() {
                    var $input = $(this),
							fieldValue = $.trim($input.val()),
							labelText = $input.siblings('label').text().replace(o.removeLabelChar, ''),
							errorMsg = '';

                    //Check if it's empty or an invalid email
                    if (fieldValue === '') {
                        errorMsg = (errorMsgType > -1) ? errorMsg = o.errorText.replace('{label}', labelText) : errorMsg = o.errorText;
                        hasError = true;
                    } else if ($input.hasClass('email')) {
                        if (!(/^([_a-z0-9-]+)(\.[_a-z0-9-]+)*@([a-z0-9-]+)(\.[a-z0-9-]+)*(\.[a-z]{2,4})$/.test(fieldValue))) {
                            errorMsg = (errorMsgType > -1) ? errorMsg = o.emailErrorText.replace('{label}', labelText) : errorMsg = o.emailErrorText;
                            hasError = true;
                        }
                    }

                    //If there is an error, display it
                    if (errorMsg !== '') {
                        $input.addClass(o.inputErrorClass).after('<' + o.errorElement + ' class="' + o.errorClass + '">' + errorMsg + '</' + o.errorElement + '>');
                    }
                });

                if (hasError) { //Don't submit the form if there are errors
                    e.preventDefault();
                } else if (o.completeCallback !== '') { //If there is a callback
                    o.completeCallback($this);
                    if (o.ajaxRequest) { //If AJAX request
                        e.preventDefault();
                    }
                }
            });
        });
    };

    // default options
    $.fn.simpleValidate.defaults = {
        errorClass: 'error',
        errorText: '{label} Skal udfyldes.',
        emailErrorText: 'Skriv en gyldig {label}',
        errorElement: 'strong',
        removeLabelChar: '*',
        inputErrorClass: '',
        completeCallback: '',
        ajaxRequest: false
    };
})(jQuery);