export function unloadApplication(appName, opts={waitForUnmount: false}) {
if (typeof appName !== 'string') {
throw new Error(`unloadApplication requires a string 'appName'`);
}
const app = find(apps, App => App.name === appName);
if (!app) {
throw new Error(`Could not unload application '${appName}' because no such application has been declared`);
}
const appUnloadInfo = getAppUnloadInfo(app.name);
if (opts && opts.waitForUnmount) {
// We need to wait for unmount before unloading the app
if (appUnloadInfo) {
// Someone else is already waiting for this, too
return appUnloadInfo.promise;
} else {
// We're the first ones wanting the app to be resolved.
const promise = new Promise((resolve, reject) => {
addAppToUnload(app, () => promise, resolve, reject);
});
return promise;
}
} else {
/* We should unmount the app, unload it, and remount it immediately.
*/
let resultPromise;
if (appUnloadInfo) {
// Someone else is already waiting for this app to unload
resultPromise = appUnloadInfo.promise;
immediatelyUnloadApp(app, appUnloadInfo.resolve, appUnloadInfo.reject);
} else {
// We're the first ones wanting the app to be resolved.
resultPromise = new Promise((resolve, reject) => {
addAppToUnload(app, () => resultPromise, resolve, reject);
immediatelyUnloadApp(app, resolve, reject);
});
}
return resultPromise;
}
}
export function getAppStatus(appName) {
const app = find(apps, app => app.name === appName);
return app ? app.status : null;
}
function isArrayOfFns(arr) {
return Array.isArray(arr) && !find(arr, item => typeof item !== 'function');
}