front-end

src/WebsocketManager.js

@@ -0,0 +1,63 @@
+import { createNodeWebSocket } from '@hono/node-ws'
+import {serve} from "@hono/node-server";
+
+export default class WebsocketManager {
+
+    constructor() {
+        this.clients = [];
+        this.lastPing = {};
+
+        setInterval(() => {
+            const thr = Date.now() - 60000;
+            this.clients.filter(client => this.lastPing[client] < thr).forEach((client) => this.leaveClient(client));
+        }, 10000);
+    }
+
+    getHandler() {
+        const _this = this;
+        return {
+            onOpen: (event, ws) => {
+                this.joinClient(ws);
+                ws.send(JSON.stringify("cau"));
+            },
+            onMessage(event, ws) {
+                console.log(`Message from client: ${event.data}`)
+                if (!event.data)
+                    return;
+
+                const data = JSON.parse(event.data);
+                if (!data)
+                    return;
+
+                if (data.ping) {
+                    _this.lastPing[ws] = Date.now();
+                }
+
+                if (data.data)
+                    _this.handleMessage(ws, data.data);
+            },
+            onClose: (event, ws) => {
+                this.leaveClient(ws);
+            },
+        };
+    }
+
+    handleMessage(ws, data) {
+
+    }
+
+    broadcast(message) {
+        this.clients.forEach(client => client.send(JSON.stringify({data: message})));
+    }
+
+    joinClient(ws) {
+        this.clients.push(ws);
+        this.lastPing[ws] = Date.now();
+    }
+
+    leaveClient(ws) {
+        this.clients = this.clients.filter(s => s !== ws);
+        delete this.lastPing[ws];
+    }
+
+}