import { SearchService } from "../services/query.service"
import _ = require("lodash")
import { Subject, interval } from "rxjs";
import * as WebSocket from 'ws';

/* ---------------------- COMPLEX OPERATION ------------------------------ */
// Check Heap size
// const v8 = require('v8');
// const heapStats = v8.getHeapStatistics();
// const maxHeapSize = heapStats.heap_size_limit / (1024 * 1024); // Convert to MB
// console.log(`Current maximum heap size: ${maxHeapSize.toFixed(2)} MB`);

// Create new Subject to handle incoming data from remote subscription
let payload: Subject<any> = new Subject()

payload.subscribe((element) => {
    console.log(`Received message from server: ${element.appData.msgId}`);
    const used = process.memoryUsage().heapUsed / 1024 / 1024;
    console.log(`Heap used: ${used} MB`);
})

// Create a new WebSocket client
const ws = new WebSocket('ws://localhost:8080');

// Listen for the WebSocket connection to open
ws.on('open', () => {
    console.log('Connected to WebSocket server');

    // Send a message to the server
    ws.send('Hello, server!');
});

// Listen for messages from the server
ws.on('message', (message: string) => {
    let msgObj = JSON.parse(message)
    payload.next(msgObj)
});

// Listen for the WebSocket connection to close
ws.on('close', () => {
    console.log('Disconnected from WebSocket server');
});