const XMLHttpRequest = require("xmlhttprequest").XMLHttpRequest;

/** ToolsClass */
class ToolsClass {
    // constructor() {
    // }

    /**
     * shorturl
     * @param url url
     */
    shorturl(url) {
        return new Promise((resolve, reject) => {
            var xhr = new XMLHttpRequest();
            xhr.withCredentials = true;
            xhr.onreadystatechange = function () {
                if (xhr.readyState === 4) {
                    if (xhr.status >= 200 && xhr.status < 400) {
                        var response = JSON.parse(xhr.responseText);
                        resolve(response.link);
                    }
                }
            };
            xhr.open("POST", "https://api-ssl.bitly.com/v4/shorten");
            xhr.setRequestHeader("Authorization", "Bearer 88188dfe42e71c8da237fd49ffe5979d0fc69bd6");
            xhr.setRequestHeader("Content-Type", "application/json");
            let encodedData = JSON.stringify({
                "long_url": url,
                "domain": "bit.ly"
            });
            xhr.send(encodedData);
        });
    }
}

module.exports = ToolsClass