(function() {
    var site = window.location.hostname.replace(/^www\./i, '');
    var url = "https://api.digiaccess.org/subscriptions/active?site=" + site;
    var xhr = new XMLHttpRequest();

    var getToolLang = (defaultLang) => {
        var lang = localStorage.getItem('da-language');
        if(lang===null || lang===undefined || lang==='') {
            var pageLanguage =  document.documentElement.lang;
            if(pageLanguage) {
                if(pageLanguage.length > 2) {
                    pageLanguage = pageLanguage.split('-')[0];
                } 
                lang = pageLanguage 
            } else {
                lang = defaultLang ?? 'de';
            }
        }

        return lang;
    }

    
    xhr.onload = function () {
        if (xhr.status >= 200) {
            var res = JSON.parse(xhr.response);
            if (res.isActive) {
                var lang = getToolLang(res.settings?.lang)
                var element = document.createElement("script");
                var scriptPath = "https://download.digiaccess.org/digiaccess/tool?lang="+ lang;
                var settings = JSON.stringify(res.settings);
                var imageCaptioningConfig = JSON.stringify(res.imageCaptioningConfig);

                // Assign version to retreive
                if (res.version && res.version !== 'latest') {
                    scriptPath += '&version=' + res.version;
                }

                var script = document.getElementById('dacs');

                if(script) {
                    script.removeAttribute('id');
                }

                element.setAttribute("id", "dacs");
                element.setAttribute("src", scriptPath);
                element.setAttribute("da-settings", settings);
                element.setAttribute("da-image-captioning-config", imageCaptioningConfig);
                document.body.appendChild(element);
            }
        } else {
            console.log('The request failed!');
        }
    };
    xhr.open('GET', url);
    xhr.setRequestHeader('X-Da-Hostname', window.location.hostname);
    xhr.send();
})();