function getQuizLanguage(language = getParameter("quizLanguage")) { 
    if (language === "") {
        language = "en";
    }
    return language;
}

var languagesCodes = {
    "al": "Albanian", "ar": "Arabic", "az": "Azerbaijani", "bs": "Bosnian", "bg": "Bulgarian", "zh": "Chinese", "hr": "Croatian",
	"cz": "Czech", "da": "Danish", "du": "Dutch", "en": "English", "et": "Estonian", "fn": "Finnish", "fr": "French", "de": "German",
	"gr": "Greek", "he": "Hebrew", "hu": "Hungarian", "id": "Indonesian", "it": "Italian", "ja": "Japanese", "kk": "Kazakh", "ko": "Korean",
	"lv": "Latvian", "lt": "Lithuanian", "no": "Norwegian", "fa": "Persian", "pl": "Polish", "pt": "Portuguese", "ro": "Romanian",
	"ru": "Russian", "sr": "Serbian", "sk": "Slovak", "es": "Spanish", "sv": "Swedish", "th": "Thai", "tr": "Turkish", "vi": "Vietnamese"
}

var languagesLinks = {
	"en": ["fr", "de", "it", "more"],
	"de": ["fr", "pl", "it", "more"],
	"pl": ["de", "en", "du", "more"],
	"fr": ["de", "it", "en", "more"],
	"es": ["pt", "en", "fr", "more"],
	"ar": ["he", "en", "fr", "more"],
	"cz": ["sk", "fr", "pl", "more"],
	"fn": ["sv", "no", "et", "more"],
	"it": ["de", "en", "fr", "more"],
	"du": ["fr", "hu", "de", "more"],
	"no": ["sv", "da", "es", "more"],
	"ro": ["bg", "sr", "hu", "more"],
	"he": ["en", "de", "it", "more"],
	"tr": ["az", "de", "it", "more"],
	"da": ["no", "sv", "pt", "more"],
	"et": ["fn", "no", "sv", "more"],
	"hr": ["bs", "sr", "hu", "more"],
    "ja": ["ko", "zh", "id", "more"],
    "ru": ["kk", "az", "lv", "more"],
    "sk": ["cz", "hu", "pl", "more"],
    "sv": ["fn", "no", "pl", "more"],
    "vi": ["zh", "es", "id", "more"],
    "id": ["zh", "vi", "en", "more"],
    "lv": ["sv", "no", "et", "more"],
    "lt": ["lv", "et", "ru", "more"],
    "az": ["tr", "ru", "ar", "more"],
    "kk": ["ru", "zh", "vi", "more"],
	"al": ["sr", "bs", "hr", "more"],
	"bg": ["ro", "du", "gr", "more"],
	"bs": ["hr", "sr", "de", "more"],
	"fa": ["az", "ar", "de", "more"],
	"gr": ["hr", "sr", "it", "more"],
	"hu": ["ro", "hr", "sk", "more"],
	"ko": ["ja", "zh", "vi", "more"],
	"pt": ["es", "ja", "hu", "more"],
	"sr": ["hr", "bg", "al", "more"],
	"th": ["ja", "vi", "en", "more"],
	"zh": ["th", "en", "es", "more"]
}

function loadOtherLanguages(page) {

	var languagesHTML = "";
	var currentLanguage = getQuizLanguage();
	var prefix = "";

	if (quizName.includes("this-or-that") ) {
        prefix = '/this-or-that';
        currentLanguage = currentLanguage.replace("this-or-that-", "");
    }
	if (quizName.includes("two-answers") ) {
        prefix = '/two-answers';
        currentLanguage = currentLanguage.replace("two-answers-", "");
    }

    if(currentLanguage == "" || currentLanguage == "this-or-that" || currentLanguage == "two-answers") {
        currentLanguage = "en";
    }

	var langs = languagesLinks[currentLanguage];
	for(var i = 0; i < langs.length; i++) {
		lang = langs[i];
		if(lang == "more") {
			languagesHTML += '<a href="/languages.html?qisrc=lang_' + currentLanguage + '">Other</a>';
		} else {
			realLang = "/" + lang;
			if(lang == "en") {
				realLang = "";
			}
			languagesHTML += '<a href="' + prefix + realLang + '/' + page + '.html?qisrc=lang_' + currentLanguage + '">' + languagesCodes[lang] + '</a>';
		}
	}
	$("#moreLanguages").html(languagesHTML);
}



function changeLanguage(lang, page, action) {
    var quizLanguage = getQuizLanguage();
    if(lang == "kz") { lang = "kk"; }

    if (!quizLanguage.includes(lang)) {
        createCookie("redirected", 1, 365);
        window.location.href = "/" + lang + "/" + page + ".html?qisrc=redirect";
    }
}

function checkIfRedirectNeeded(page) {
	var browserLanguage = window.navigator.userLanguage || window.navigator.language;
	var langsList = ["az", "kk", "kz", "zh", "sr", "hr", "ko", "bs", "he"];

	for(var i = 0; i < langsList.length; i++) {
		lang = langsList[i];
		if(browserLanguage.includes(lang) && readCookie("redirected")!=1) {
			changeLanguage(lang, page, "redirect");
		}
	}
}