/* pathnamereplace.js v0.1.3, URL pathname replace for conditional redirects to support multi-language sites, now with cookies and passtrue list.
 * Author & copyright (c) 2017: Göran Svensson, goran@molnsys.com. MIT license.
 * Tested with Chrome 36, Firefox 29 and Safari 7.0.5 on OSX.
 * Tested with Chrome 36 on Xperia V (Android 4.3) and Internet 2.3.6 on Samsung GT-S5360 (Android 2.3.6).
 * Works with any number of path name items and language acronymes. Does not break the back button.
 * How to use it; add this in your nav menu: javascript:changeLanguage('se') to switch to swedish version.
 * REQUIRES: JavaScript Cookie v2.1.4 https://github.com/js-cookie/js-cookie

 *CatalystScripts/Java_Cookies.js and country = '{module_visitorcountrycode}'; added
 * above this script (does not work inside a js file).
 * No bugs have been harmed.
 * To avoid unnecesary reload, build a nav menu for each language with the right path.
 */

var defaultLang = CONTENTLANGUAGE, // get language from config file DefaultContentLanguage.
    pathArray = window.location.pathname.split( '/' ), // get the path and split the string on "/"
    langArray = ["sv","es"], // Do not include the default lang here! For pages just create files like this: filename.en.md, filename.sv.md). For blog posts we redirect to the front page for each language.
    passtrueArray = ["CampaignProcess.aspx","FormProcessv2.aspx"], // sometimes it is not possible to add language support to a module. Then we do not check language.
    constructPath = window.location.protocol + "//" + window.location.host;
    pathArray.splice(0,1); // remove the first item which is empty
var firstPartofPathname = pathArray[0],
    //cookieValue = readCookie('selectedLanguage')
    cookieValue = Cookies.get('selectedLanguage'),
    thepathname = window.location.pathname,
    visitorLanguage = defaultLang;
// run it on every request
if (!checkPassTrue()){
    if (cookieValue!=null){
        changeLanguage(cookieValue);}
        else {
        changeLanguage(visitorLanguage);
    }
}
// helper function: check if the first path item contains any of the known language acronymes
function checkLanguage(){
    var itemFoundFlag = false;
    if (langArray.indexOf(firstPartofPathname) > -1) itemFoundFlag = true;
    return itemFoundFlag;
}

// helper function: don´t redirect if the first path contains anything from the passtrue array.
function checkPassTrue(){
    var itemFoundFlag = false;
    if (passtrueArray.indexOf(firstPartofPathname) > -1) itemFoundFlag = true;
    return itemFoundFlag;
}

// helper function: put the pathname back together with slashes
function buildPath(theArray){
    var newPathname = "";
    for (i = 0; i < theArray.length; i++) {
        newPathname += "/";
        newPathname += theArray[i];
    }
    return newPathname;

}
// main function: changeLanguage takes a language acronyme as an argument and replaces the path name in the URL using JavaScript Cookie v2.1.4 https://github.com/js-cookie/js-cookie
function changeLanguage(theLanguage){
     if (theLanguage != defaultLang) {
            // remove the first item
              pathArray.splice(0,1);


            // add the Language
            pathArray.splice(0, 0, theLanguage);
            console.log(pathArray.length);
            if (thepathname != buildPath(pathArray)){

             // create cookie
            Cookies.set('selectedLanguage', theLanguage);
            // replace path

            if (pathArray.length > 4)  {
                window.location.replace(constructPath + '/' + theLanguage + '/post');
            } else {
                window.location.replace(constructPath + buildPath(pathArray));
            }

            }
        }
}