/**
* Vinter.validate()
* Version 1.9.1
* Updated 4 dec 2008
*
*	Vinter.validate is (c) 2008 Lars Huring, Olov Nilzén and Vinter (www.vinterwebb.se) and is released under the MIT License:
*	http://www.opensource.org/licenses/mit-license.php
* 
* Changelog:
* 1.1:
* - Added checkbox validation
* - Added checkbox groups validation
* - Added isNumber validation
* - Added onerror callback handler
*
* 1.2:
* - Added selectbox validation
* - Added file-validation
*
* 1.3
* - Added radiobutton validation
* - Added textarea validation
*
* 1.4
* - Added possibility to send html in errmsg
* - Fixed removal of notvalidclass on each validation.
*
* 1.5
* - Added possibility to check against default value (title attribute).
* - Added id to error li:s for possibity to hide em'
* - Updated the examples and added a little more documentation
*
* 1.6
* - Added selectbox default values array
* - Added "defaultval" class to <option>, config: selectboxdefaultclass
* - Added selectbox validation to example
*
* 1.7
* - Added source to SVN repository
* - Changed filenames to exclude version numbers
* - Updated jQuery-version to 1.2.6
*
* 1.8
* Added by Mehdi Cherifi (superyms)
* - Added DATE format (Matches the following formats mm/dd/yy, mm/dd/yyyy, mm-dd-yy, mm-dd-yyyy This covers days with 30 or 31 days but does not handle February, it is allowed 30 days.)
* - Added time format validation
* - Added Url validation
*
* Added by Pitt Phunsanit
* - Added float-number validation 
*
* 1.8.1
* - Changed isNumber to include whitespace as valid character
*
* 1.9
* - Wrapped error messages in <label for="input_id"></label>, now they can be clicked and re-focus input to the error field. Cheers @twitter.com/icaaq for idea.
* - Added errorlabelclass option for error message label to enable better styling (see cursor in demo)
* - Changed $ to jQuery to avoid conflicts
*
* 1.9.1
* - Added oncomplete event
*
* Usage:
* Simple: <input type="submit" value="skicka" onclick="return jQuery.validate();" />
* Advanced: http://labs.vinterwebb.se/jquery.validate/Default.aspx
*
*/
(function(jQuery) {

    jQuery.validate = function(options) {

        // Set up some options
        options = options || {};
        options.fieldset = options.fieldset || "";
        options.messagecontainer = options.messagecontainer || "#validationmsg";
        options.errormsg = options.errormsg || ".errmsg";
        options.notvalidclass = options.notvalidclass || "notvalid";
        options.messageheader = options.messageheader || "Hittade några problem i formuläret";
        options.onerror = options.onerror || "";
        options.oncomplete = options.oncomplete || "";
        options.erroridprefix = options.erroridprefix || "validationerror_";
        options.selectboxdefault = options.selectboxdefault || [""];
        options.selectboxdefaultclass = options.selectboxdefaultclass || "defaultval";
        options.usedefault = options.usedefault || false;
        options.errorlabelclass = options.errorlabelclass || "errormsglabel"

        var errors = new Array();
        jQuery(options.messagecontainer).empty();

        jQuery("." + options.notvalidclass).each(function(i, item) {
            jQuery(item).removeClass(options.notvalidclass);
        });

        function isEmail(str) {
            var regex = /^[a-zA-Z0-9._-]+@([a-zA-Z0-9.-]+\.)+[a-zA-Z0-9.-]{2,4}$/;
            return regex.test(str);
        }

        function isNumber(str) {
            var regex = /^[0-9-\s]*$/;
            return regex.test(str);
        }

        function isEmpty(item) {
            if (item.value == "")
                return true;

            if (options.usedefault && item.value == jQuery(item).attr("title"))
                return true;

            return false;
        }

        function isUrl(str) {
            var regex = /^((http|ftp|https):\/\/w{3}[\d]*.|(http|ftp|https):\/\/|w{3}[\d]*.)([\w\d\._\-#\(\)\[\]\\,;:]+@[\w\d\._\-#\(\)\[\]\\,;:])?([a-z0-9]+.)*[a-z\-0-9]+.([a-z]{2,3})?[a-z]{2,6}(:[0-9]+)?(\/[\/a-z0-9\._\-,]+)*[a-z0-9\-_\.\s\%]+(\?[a-z0-9=%&amp;\.\-,#]+)?$/;
            return regex.test(str);
        }

        function isDate(str) {
            var regex = /^((0?[13578]|10|12)(-|\/)((0[0-9])|([12])([0-9]?)|(3[01]?))(-|\/)((\d{4})|(\d{2}))|(0?[2469]|11)(-|\/)((0[0-9])|([12])([0-9]?)|(3[0]?))(-|\/)((\d{4}|\d{2})))$/;
            return regex.test(str);
        }

        function isTime(str) {
            var regex = /^(([0-1]?[0-9])|([2][0-3])):([0-5]?[0-9])(:([0-5]?[0-9]))?$/;
            return regex.test(str);
        }

        function isFloat(str) {
            var regex = /^([+-]?(((\d+(\.)?)|(\d*\.\d+))([eE][+-]?\d+)?))$/;
            return regex.test(str);
        }

        function getMsg(item) {
            return jQuery(item.parentNode).find(options.errormsg).html();
        }

        function validateTextBox(item) {
            if (isEmpty(item) == true || (jQuery(item).hasClass("email") && isEmail(item.value) == false))
                errors.push({ id: item.id, msg: getMsg(item), type: "text" });

            if (isEmpty(item) == false && (jQuery(item).hasClass("date") && isDate(item.value) == false))
                errors.push({ id: item.id, msg: getMsg(item), type: "text" });

            if (isEmpty(item) == false && (jQuery(item).hasClass("time") && isTime(item.value) == false))
                errors.push({ id: item.id, msg: getMsg(item), type: "text" });

            if (isEmpty(item) == false && jQuery(item).hasClass("float") && isFloat(item.value) == false)
                errors.push({ id: item.id, msg: getMsg(item), type: "float" });

            if (isEmpty(item) == false && (jQuery(item).hasClass("url") && isUrl(item.value) == false))
                errors.push({ id: item.id, msg: getMsg(item), type: "text" });

            if (isEmpty(item) == false && jQuery(item).hasClass("number") && isNumber(item.value) == false)
                errors.push({ id: item.id, msg: getMsg(item), type: "number" });
        }

        function validateCheckbox(item) {
            if (item.checked != true)
                errors.push({ id: item.id, msg: getMsg(item), type: "checkbox" });
        }

        function validateSelect(item) {
            if (jQuery.inArray(item.value, options.selectboxdefault) > -1 || item[item.selectedIndex].className == options.selectboxdefaultclass)
                errors.push({ id: item.id, msg: getMsg(item), type: "select-one" });
        }

        // Loop
        jQuery(options.fieldset + " .required").each(function(i, item) {

            // Checkboxes
            switch (item.type) {
                case "checkbox":
                    validateCheckbox(item);
                    break;

                case "text":
                case "file":
                case "textarea":
                case "hidden":
                    validateTextBox(item);
                    break;

                case "select-one":
                    validateSelect(item);
            }

        });

        /*
        * Validate checkbox groups
        */
        jQuery(options.fieldset + " .checkboxgroup," + options.fieldset + " .radiogroup").each(function(i, item) {

            var checked = 0;
            var msg = jQuery(item).find(options.errormsg).text();

            jQuery(item).find("input[type=checkbox], input[type=radio]").each(function(i, item) {
                if (item.checked)
                    checked++;
            });

            if (checked == 0)
                errors.push({ id: item.id, msg: msg, type: "group" });

        });

        /*
        * Check errors length and output to page.
        */
        if (errors.length > 0) {

            // Onerror returns errors array to callback
            if (typeof (options.onerror) == "function") {
                options.onerror(errors);
                return false;
            }

            jQuery(options.messagecontainer).fadeIn("slow");

            jQuery("<h4/>")
				.text(options.messageheader)
				.appendTo(jQuery(options.messagecontainer));

            var ul = jQuery("<ul/>");

            jQuery(errors).each(function(i, item) {

                jQuery("#" + item.id).addClass(options.notvalidclass);

                jQuery("<li />")
					.attr("id", options.erroridprefix + item.id)
					.append("<label for='" + item.id + "' class='" + options.errorlabelclass + "'>" + item.msg + "</label>")
					.appendTo(ul);

            });

            ul.appendTo(jQuery(options.messagecontainer));

            return false;
        }

        if (typeof (options.oncomplete) == "function")
            options.oncomplete();

        // Hide if there are no errors
        jQuery(options.messagecontainer).fadeOut();
        return true;

    }

})(jQuery);