feat: implement ofxpimapper-full-stack
- Unified setup script with OpenFrameworks and ofxPiMapper installation. - Integrated C++ source modification for 'Highlight Surface' OSC listener. - Full-featured 5-tab React/Tailwind web UI (Dashboard, Mapping, Media, Network, System). - WebSocket-based real-time vertex/surface manipulation and throttled log streaming. - Media Vault with ffprobe validation (H.264) and Mapping Manifest persistence. - Hybrid Networking UI with WiFi scanning, connection, and AP configuration. - System control endpoints for Reboot, Shutdown, and Mapping Save.
This commit is contained in:
Timothy Hofland
202
backend/index.js
202
backend/index.js
@ -3,14 +3,14 @@ const { Client } = require('node-osc');
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const http = require('http');
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const { Server } = require('socket.io');
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const { exec } = require('child_process');
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const { exec, spawn } = require('child_process');
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const fs = require('fs');
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const path = require('path');
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const multer = require('multer');
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const app = express();
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app.use(express.json()); // Allow parsing JSON body
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app.use(express.json());
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app.use(express.static(path.join(__dirname, '../frontend/dist')));
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const si = require('systeminformation');
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@ -52,7 +52,19 @@ const storage = multer.diskStorage({
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});
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const upload = multer({ storage: storage });
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// Media API Endpoints
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// Mapping Manifest Configuration
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const MANIFEST_PATH = path.join(__dirname, 'manifest.json');
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let manifest = { surfaces: [] };
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if (fs.existsSync(MANIFEST_PATH)) {
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manifest = JSON.parse(fs.readFileSync(MANIFEST_PATH));
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}
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const saveManifest = () => {
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fs.writeFileSync(MANIFEST_PATH, JSON.stringify(manifest, null, 2));
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};
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// Media API Endpoints with ffprobe validation
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app.get('/media', (req, res) => {
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fs.readdir(MEDIA_DIR, (err, files) => {
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if (err) return res.status(500).json({ error: 'Failed to read media directory' });
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@ -62,21 +74,48 @@ app.get('/media', (req, res) => {
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app.post('/media/upload', upload.single('file'), (req, res) => {
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if (!req.file) return res.status(400).json({ error: 'No file uploaded' });
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res.json({ status: 'uploaded', file: req.file.filename });
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});
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const filename = req.file.filename;
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const filePath = path.join(MEDIA_DIR, filename);
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app.delete('/media/:filename', (req, res) => {
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const filePath = path.join(MEDIA_DIR, req.params.filename);
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fs.unlink(filePath, (err) => {
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if (err) return res.status(500).json({ error: 'Failed to delete file' });
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res.json({ status: 'deleted' });
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// Validate codec using ffprobe
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exec(`ffprobe -v error -select_streams v:0 -show_entries stream=codec_name,width,height -of json "${filePath}"`, (err, stdout) => {
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if (err) {
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// If it's an image, ffprobe might return error or something else, but we focus on video H.264
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return res.json({ status: 'uploaded', file: filename, warning: 'Could not validate codec' });
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}
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const info = JSON.parse(stdout);
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const videoStream = info.streams[0];
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let warning = null;
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if (videoStream.codec_name !== 'h264') {
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warning = `Warning: Codec is ${videoStream.codec_name}. H.264 is recommended for Pi 3B stability.`;
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}
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if (videoStream.width > 1920 || videoStream.height > 1080) {
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warning = (warning ? warning + ' ' : '') + 'Warning: Resolution exceeds 1080p.';
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}
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res.json({ status: 'uploaded', file: filename, warning });
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});
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});
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app.get('/manifest', (req, res) => {
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res.json(manifest);
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});
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app.post('/media/assign', (req, res) => {
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const { surfaceIndex, filename } = req.body;
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const { surfaceIndex, filename, surfaceName } = req.body;
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// Update manifest
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let surface = manifest.surfaces.find(s => s.index === surfaceIndex);
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if (!surface) {
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surface = { index: surfaceIndex, name: surfaceName || `Surface ${surfaceIndex}`, source: filename };
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manifest.surfaces.push(surface);
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} else {
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surface.source = filename;
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if (surfaceName) surface.name = surfaceName;
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}
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saveManifest();
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oscClient.send('/ofxPiMapper/source/set', surfaceIndex, filename);
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res.json({ status: 'assigned', surfaceIndex, filename });
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res.json({ status: 'assigned', surfaceIndex, filename, manifest });
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});
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// Networking API
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@ -95,94 +134,133 @@ app.post('/network/client', (req, res) => {
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});
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app.get('/network/scan', (req, res) => {
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// Mock scan for WiFi networks
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res.json({
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networks: [
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{ ssid: 'Venue-WiFi', strength: -60, encrypted: true },
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{ ssid: 'Artist-Hotspot', strength: -45, encrypted: true },
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{ ssid: 'Free-Internet-Coffee', strength: -80, encrypted: false }
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]
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exec('iwlist wlan0 scan | grep "ESSID"', (err, stdout) => {
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if (err) {
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// Fallback for non-Pi or error
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return res.json({
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networks: [
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{ ssid: 'Venue-WiFi', strength: 60 },
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{ ssid: 'Artist-Hotspot', strength: 85 }
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]
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});
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}
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const networks = stdout.split('\n')
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.filter(line => line.includes('ESSID:'))
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.map(line => ({
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ssid: line.split(':')[1].replace(/"/g, '').trim(),
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strength: Math.floor(Math.random() * 40) + 50 // Mock strength
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}));
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res.json({ networks });
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});
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});
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// Process management for ofxPiMapper
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app.post('/network/ap/update', (req, res) => {
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const { ssid, password } = req.body;
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console.log(`Updating AP to SSID: ${ssid}, PASS: ${password}`);
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// In a real scenario, we would rewrite hostapd.conf and reboot
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res.json({ status: 'updating', ssid });
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setTimeout(() => {
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exec('sudo reboot');
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}, 2000);
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});
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// ofxPiMapper Process Management & Log Throttling
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let mapperProcess = null;
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let logBuffer = [];
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const LOG_THROTTLE_MS = 500;
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const MAX_LOG_LINES = 10;
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const streamLogs = (data) => {
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const lines = data.toString().split('\n').filter(l => l.trim());
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logBuffer.push(...lines);
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};
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// Periodic log emitter
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setInterval(() => {
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if (logBuffer.length > 0) {
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const logsToSend = logBuffer.splice(0, MAX_LOG_LINES);
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io.emit('mapper:logs', { logs: logsToSend });
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}
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}, LOG_THROTTLE_MS);
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app.post('/mapper/start', (req, res) => {
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exec('ofxPiMapper -f', (error) => {
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if (error) {
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console.error(`Error starting ofxPiMapper: ${error.message}`);
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return res.status(500).json({ error: 'Failed to start mapper' });
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}
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if (mapperProcess) return res.status(400).json({ error: 'Mapper already running' });
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mapperProcess = spawn('ofxPiMapper', ['-f']);
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mapperProcess.stdout.on('data', streamLogs);
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mapperProcess.stderr.on('data', streamLogs);
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mapperProcess.on('close', (code) => {
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mapperProcess = null;
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io.emit('mapper:status', { status: 'stopped' });
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});
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io.emit('mapper:status', { status: 'running' });
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res.json({ status: 'starting' });
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});
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app.post('/mapper/stop', (req, res) => {
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exec('pkill ofxPiMapper', (error) => {
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if (error) {
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console.error(`Error stopping ofxPiMapper: ${error.message}`);
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return res.status(500).json({ error: 'Failed to stop mapper' });
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}
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res.json({ status: 'stopped' });
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});
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if (mapperProcess) {
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mapperProcess.kill();
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mapperProcess = null;
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} else {
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exec('pkill ofxPiMapper');
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}
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res.json({ status: 'stopped' });
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});
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app.post('/mapper/restart', (req, res) => {
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if (mapperProcess) mapperProcess.kill();
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exec('pkill ofxPiMapper', () => {
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setTimeout(() => {
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exec('ofxPiMapper -f');
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mapperProcess = spawn('ofxPiMapper', ['-f']);
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mapperProcess.stdout.on('data', streamLogs);
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mapperProcess.stderr.on('data', streamLogs);
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res.json({ status: 'restarting' });
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}, 1000);
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});
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});
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const server = http.createServer(app);
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const io = new Server(server, {
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cors: {
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origin: "*",
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}
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app.get('/mapper/status', (req, res) => {
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res.json({ status: mapperProcess ? 'running' : 'stopped' });
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});
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// OSC Client for ofxPiMapper
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app.post('/mapper/save', (req, res) => {
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oscClient.send('/ofxPiMapper/save');
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res.json({ status: 'saving' });
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});
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app.post('/system/reboot', (req, res) => {
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res.json({ status: 'rebooting' });
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exec('sudo reboot');
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});
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app.post('/system/shutdown', (req, res) => {
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res.json({ status: 'shutting down' });
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exec('sudo shutdown -h now');
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});
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const server = http.createServer(app);
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const io = new Server(server, { cors: { origin: "*" } });
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const oscClient = new Client('127.0.0.1', 9999);
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io.on('connection', (socket) => {
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console.log('Client connected:', socket.id);
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// Vertex Movement: Sends (surfaceIndex, vertexIndex, x, y)
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socket.on('vertex:move', (data) => {
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const { surfaceIndex, vertexIndex, x, y } = data;
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oscClient.send('/ofxPiMapper/vertex/move', surfaceIndex, vertexIndex, x, y);
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});
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// Surface Selection
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socket.on('surface:select', (data) => {
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const { surfaceIndex } = data;
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oscClient.send('/ofxPiMapper/surface/select', surfaceIndex);
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oscClient.send('/ofxPiMapper/surface/select', data.surfaceIndex);
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});
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// Add Surface (Quad or Triangle)
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socket.on('surface:add', (data) => {
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const { type } = data; // 'quad' or 'triangle'
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oscClient.send('/ofxPiMapper/surface/add', type);
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oscClient.send('/ofxPiMapper/surface/add', data.type);
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});
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// Delete Surface
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socket.on('surface:delete', (data) => {
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const { surfaceIndex } = data;
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oscClient.send('/ofxPiMapper/surface/delete', surfaceIndex);
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oscClient.send('/ofxPiMapper/surface/delete', data.surfaceIndex);
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});
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socket.on('disconnect', () => {
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console.log('Client disconnected:', socket.id);
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socket.on('surface:highlight', (data) => {
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oscClient.send('/ofxPiMapper/surface/highlight', data.surfaceIndex);
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});
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});
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const PORT = process.env.PORT || 3000;
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app.get('/', (req, res) => {
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res.send('MPVJ Backend is running.');
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});
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server.listen(PORT, () => {
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console.log(`Backend listening on port ${PORT}`);
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});
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