/**
 * Checks whether the chrome extensions defined in the config file are installed or not.
 *
 * @param {Object} config - Objects containing info about the configured extensions.
 *
 * @returns {Promise[]}
 */
export default function checkChromeExtensionsInstalled(config: any = {}) {
    const isExtensionInstalled = (info: any) => new Promise(resolve => {
        const img = new Image();

        img.src = `chrome-extension://${info.id}/${info.path}`;
        img.setAttribute('aria-hidden', 'true');
        img.onload = function() {
            resolve(true);
        };
        img.onerror = function() {
            resolve(false);
        };
    });
    const extensionInstalledFunction = (info: any) => isExtensionInstalled(info);

    return Promise.all(
        (config.chromeExtensionsInfo || []).map((info: any) => extensionInstalledFunction(info))
    );
}