Files
FACULTATE-LICENTA/CEO/src/helpers/task_scheduler.ts
T

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3.5 KiB
TypeScript

import { JsonManager } from './json_manager'; // Assuming you have this class for managing user/memory
import { WindowManager } from './window_manager'; // For managing app navigation
import { UdpClient } from '../network/udp/udp_client';
export class TaskScheduler {
private applicationInfo: JsonManager;
private windowManager: WindowManager;
private appStarted: boolean = false;
private intervalIds: NodeJS.Timeout[] = []; // Array to store interval IDs
constructor(applicationInfo: JsonManager, windowManager: WindowManager) {
this.applicationInfo = applicationInfo;
this.windowManager = windowManager;
}
// Function to schedule the UC check task with dynamic UDP client creation
public startUCCheck(udpPort: number, okPage: string, errorPage: string, interval: number = 30000) {
const intervalId = setInterval(async () => {
try {
const udpClient = new UdpClient(udpPort); // Create UdpClient with the provided port
const aliveClients = await udpClient.getAliveClients();
const storedIp = await this.applicationInfo.readValue('serverIp');
const foundClient = aliveClients.length > 0;
if (foundClient) {
const ipAddress = aliveClients[0]; // Just using the first alive client
if (!storedIp || storedIp !== ipAddress) {
await this.applicationInfo.writeValue('serverIp', ipAddress);
if (!this.appStarted) {
await this.windowManager.changeContent(okPage);
}
this.appStarted = true;
} else if (!this.appStarted) {
await this.windowManager.changeContent(okPage);
this.appStarted = true;
}
} else {
await this.windowManager.changeContent(errorPage);
}
} catch (err) {
console.error('Error checking UC:', err);
await this.windowManager.changeContent(errorPage);
}
}, interval);
this.intervalIds.push(intervalId);
}
// Function to schedule the IP lookup task, storing the active addresses in memory
public async startUserIPLookup(udpPort: number, interval: number = 30000) {
const serverIp = await this.applicationInfo.readValue('serverIp'); // Ensure it's awaited if it's an async function
const intervalId = setInterval(async () => {
try {
const udpClient = new UdpClient(udpPort); // Create a UDP client with the provided port
const activeIPs = await udpClient.getAliveClients(); // Get the list of active IPs
// Filter out the serverIp from the list of active clients
const filteredIPs = activeIPs.filter(ip => ip !== serverIp);
// Save the filtered IPs to 'users_ip'
await this.applicationInfo.writeValue('users_ip', filteredIPs);
} catch (err) {
console.error('Error during user IP lookup:', err);
}
}, interval);
this.intervalIds.push(intervalId); // Store the interval ID
}
// Function to stop all tasks (UC check, user worker, etc.)
public stopAllTasks() {
this.intervalIds.forEach(clearInterval); // Clear all intervals
this.intervalIds = []; // Reset the array
}
}