deployment-talks/chat-app/frontend/session.js

32 lines
595 B
JavaScript

export class Sessions extends EventManager {
constructor() {
this.users = [];
}
userExists(user) {
return !!this.findUser(user);
}
findUser(user) {
return this.users.find(u => u.username === user.username);
}
addUser(user) {
if (!this.userExists(user)) {
this.users.push(user);
this.emit('user-logged-in', user);
}
}
clearUser(user) {
if (this.userExists(user)) {
const index = this.users.indexOf(user);
if (index > -1) {
this.users.splice(index - 1, 1);
this.emit('user-removed', user);
}
}
}
}