Files
HPIoTWebsite/src/app/services/data.service.ts

94 lines
2.6 KiB
TypeScript

import { Injectable } from '@angular/core';
import Auth from '@aws-amplify/auth';
import { WebSocketSubject } from 'rxjs/webSocket';
import { Observable, Subject } from 'rxjs';
export interface MyJSON {
[key: string]: any;
}
@Injectable({
providedIn: 'root'
})
export class DataService {
public serverMessages: Array<MyJSON> = [];
public message = new Subject<MyJSON[]>();
private socket$: WebSocketSubject<any>;
totalFlowRate = 0;
private roles: string[];
private groups: string[];
private currentRole: string;
private token: string;
constructor() {
Auth.currentAuthenticatedUser().then(data => {
// console.log(data);
this.roles = data.signInUserSession.idToken.payload['cognito:roles'];
this.groups = data.signInUserSession.idToken.payload['cognito:groups'];
this.groups.forEach( (element, index, array) => {
array[index] = element.replace(/_/g, ' ');
});
this.currentRole = data.signInUserSession.idToken.payload['cognito:roles'][0];
this.token = data.signInUserSession.accessToken.jwtToken;
this.message.subscribe({
next: d => d
});
this.connect();
}); }
connect() {
this.connectWS(this.token, this.currentRole);
this.subscribeWS();
this.socket$.next({action: 'getDashboardData', policy: this.currentRole});
}
connectWS(token: string, role: string) {
this.socket$ = new WebSocketSubject('wss://3fseaywb8b.execute-api.us-east-1.amazonaws.com/prototype?token=' + token +
'&role=' + role);
// console.log(this.socket$);
}
subscribeWS() {
this.socket$.subscribe((message) => {
// console.log(message);
if (message instanceof Array) {
message.forEach(element => {
this.updateList(element);
});
} else {
this.updateList(message);
}
// console.log(this.serverMessages);
this.serverMessages.sort((a, b) => a.location.localeCompare(b.location));
this.message.next(this.serverMessages);
},
(err) => console.error(err),
() => console.warn('Complete: Websocket closed')
);
}
updateList(obj: MyJSON) {
// console.log(this.serverMessages);
// console.log(obj);
const index = this.serverMessages.findIndex((e) => e.location === obj.location);
if (index === -1) {
this.serverMessages.push(obj);
} else {
Object.keys(obj).forEach(element => {
this.serverMessages[index][element] = obj[element];
});
}
}
setRole(index: number) {
this.currentRole = this.roles[index];
this.socket$.complete();
this.serverMessages = [];
this.connect();
}
}