Anul 3 Semestrul 1

2025-02-06 20:33:26 +02:00
parent 0b130ee18c
commit 184f3bd92e
313 changed files with 348499 additions and 0 deletions
@@ -0,0 +1,112 @@
+const express = require('express');
+const http = require('http');
+const mysql = require('mysql');
+const bodyParser = require('body-parser');
+const cors = require('cors')
+const WebSocket = require('ws');
+
+const wss = new WebSocket.Server({ port: 8080 });
+const app = express();
+app.use(cors())
+const server = http.createServer(app);
+
+app.use(bodyParser.json());
+
+// MySQL connection
+const db = mysql.createConnection({
+    host: 'localhost',
+    port: 3306,
+    user: 'root',
+    database: 'mobile'
+});
+
+db.connect(err => {
+    if (err) {
+        console.error('Database connection failed:', err.stack);
+        return;
+    }
+    console.log('Connected to database.');
+});
+
+app.get('/', (req, res) => {
+    res.status(200).end();
+});
+
+// CRUD routes
+app.get('/drug', (req, res) => {
+    db.query('SELECT * FROM drug', (err, results) => {
+        if (err) throw err;
+        res.json(results);
+    });
+});
+
+app.post('/drug', (req, res) => {
+    const newItem = req.body;
+    delete newItem.id;
+    db.query('INSERT INTO drug SET ?', newItem, (err, result) => {
+        if (err) throw err;
+        emit('itemAdded', { id: parseInt(result.insertId), ...newItem });
+        res.status(201).json({ id: parseInt(result.insertId), ...newItem });
+    });
+});
+
+app.put('/drug', (req, res) => {
+    const updatedItem = req.body;
+    const id = parseInt(req.query.id);
+    db.query('UPDATE drug SET ? WHERE id = ?', [updatedItem, id], (err) => {
+        if (err) throw err;
+        emit('itemUpdated', { id, ...updatedItem });
+        res.status(200).json({ id, ...updatedItem });
+    });
+});
+
+app.delete('/drug', (req, res) => {
+    const id = parseInt(req.query.id);
+    db.query('DELETE FROM drug WHERE id = ?', [id], (err) => {
+        if (err) throw err;
+        emit('itemDeleted', { id });
+        res.status(204).end();
+    });
+});
+
+// WebSocket connection
+wss.on('connection', (socket) => {
+    console.log('New client connected');
+    socket.on('disconnect', () => {
+        console.log('Client disconnected');
+    });
+    socket.on('message', (message) => {
+        console.log('Message received:', message);
+    });
+    socket.on('close', () => {
+        console.log('Client disconnected');
+    });
+    socket.on('error', (err) => {
+        console.error('Error:', err);
+    });
+
+});
+
+wss.on('close', () => {
+    console.log('Client disconnected');
+});
+
+wss.on('error', (err) => {
+    console.error('Error:', err);
+});
+
+
+
+const emit = (event, data) => {
+    wss.clients.forEach(client => {
+        if (client.readyState === WebSocket.OPEN) {
+            client.send(JSON.stringify({ event, data }));
+        }
+    });
+};
+
+
+const PORT = process.env.PORT || 3000;
+server.listen(PORT, () => {
+    console.log(`Server is running on port ${PORT}`);
+});