import { wsUri } from '../env'; import { LoginForm, RegisterForm, UserOperation, CommunityForm, PostForm, CommentForm, CommentLikeForm } from '../interfaces'; import { webSocket } from 'rxjs/webSocket'; import { Subject } from 'rxjs'; import { retryWhen, delay, take } from 'rxjs/operators'; import { UserService } from './'; export class WebSocketService { private static _instance: WebSocketService; public subject: Subject; private constructor() { this.subject = webSocket(wsUri); // Even tho this isn't used, its necessary to not keep reconnecting this.subject .pipe(retryWhen(errors => errors.pipe(delay(3000), take(10)))) .subscribe(); console.log(`Connected to ${wsUri}`); } public static get Instance(){ return this._instance || (this._instance = new this()); } public login(loginForm: LoginForm) { this.subject.next(this.wsSendWrapper(UserOperation.Login, loginForm)); } public register(registerForm: RegisterForm) { this.subject.next(this.wsSendWrapper(UserOperation.Register, registerForm)); } public createCommunity(communityForm: CommunityForm) { this.setAuth(communityForm); this.subject.next(this.wsSendWrapper(UserOperation.CreateCommunity, communityForm)); } public listCommunities() { this.subject.next(this.wsSendWrapper(UserOperation.ListCommunities, undefined)); } public createPost(postForm: PostForm) { this.setAuth(postForm); this.subject.next(this.wsSendWrapper(UserOperation.CreatePost, postForm)); } public getPost(postId: number) { let data = {id: postId, auth: UserService.Instance.auth }; this.subject.next(this.wsSendWrapper(UserOperation.GetPost, data)); } public getCommunity(communityId: number) { this.subject.next(this.wsSendWrapper(UserOperation.GetCommunity, {id: communityId})); } public createComment(commentForm: CommentForm) { this.setAuth(commentForm); this.subject.next(this.wsSendWrapper(UserOperation.CreateComment, commentForm)); } public likeComment(form: CommentLikeForm) { this.setAuth(form); this.subject.next(this.wsSendWrapper(UserOperation.CreateCommentLike, form)); } private wsSendWrapper(op: UserOperation, data: any) { let send = { op: UserOperation[op], data: data }; console.log(send); return send; } private setAuth(obj: any) { obj.auth = UserService.Instance.auth; if (obj.auth == null) { alert("Not logged in."); throw "Not logged in"; } } } window.onbeforeunload = (e => { WebSocketService.Instance.subject.unsubscribe(); });