90 lines
2.8 KiB
TypeScript
90 lines
2.8 KiB
TypeScript
// app/api/live/telemetry/route.ts
|
|
// Server-Sent Events endpoint streaming from C++ Unix socket
|
|
|
|
import { getTelemetryBridge } from '@/lib/telemetryBridge';
|
|
|
|
export const dynamic = 'force-dynamic';
|
|
export const runtime = 'nodejs';
|
|
|
|
export async function GET(request: Request) {
|
|
const { searchParams } = new URL(request.url);
|
|
const serverId = searchParams.get('serverId');
|
|
const filterServerId = serverId ? parseInt(serverId) : null;
|
|
|
|
const encoder = new TextEncoder();
|
|
const bridge = getTelemetryBridge();
|
|
|
|
const stream = new ReadableStream({
|
|
start(controller) {
|
|
console.log('[SSE] Client connected', filterServerId ? `(server ${filterServerId})` : '(all servers)');
|
|
|
|
// Send initial connection message
|
|
controller.enqueue(encoder.encode(`data: ${JSON.stringify({
|
|
type: 'connected',
|
|
bridge_status: bridge.isConnected() ? 'connected' : 'connecting'
|
|
})}\n\n`));
|
|
|
|
// Subscribe to telemetry updates
|
|
const unsubscribe = bridge.subscribe((packet) => {
|
|
// Filter by server if specified
|
|
if (filterServerId && packet.server_id !== filterServerId) {
|
|
return;
|
|
}
|
|
|
|
// Transform to client format
|
|
const telemetry = {
|
|
type: 'update',
|
|
timestamp: Date.now(),
|
|
server_id: packet.server_id,
|
|
cars: packet.cars.map((car, index) => ({
|
|
carID: car.carID,
|
|
driver_guid: car.driver_guid,
|
|
driver_name: car.driver_name,
|
|
car_model: car.car_model,
|
|
position: car.position || index + 1,
|
|
current_lap: car.current_lap,
|
|
normalizedSplinePos: car.normalizedSplinePos,
|
|
speed: Math.round(car.speed_kmh),
|
|
gear: car.gear,
|
|
rpm: car.rpm,
|
|
last_lap_time: car.last_lap_time || null,
|
|
best_lap_time: car.best_lap_time || null,
|
|
})),
|
|
};
|
|
|
|
try {
|
|
controller.enqueue(encoder.encode(`data: ${JSON.stringify(telemetry)}\n\n`));
|
|
} catch (error) {
|
|
console.error('[SSE] Error sending data:', error);
|
|
}
|
|
});
|
|
|
|
// Heartbeat every 30 seconds
|
|
const heartbeat = setInterval(() => {
|
|
try {
|
|
controller.enqueue(encoder.encode(`: heartbeat\n\n`));
|
|
} catch (error) {
|
|
clearInterval(heartbeat);
|
|
}
|
|
}, 30000);
|
|
|
|
// Cleanup on connection close
|
|
request.signal.addEventListener('abort', () => {
|
|
console.log('[SSE] Client disconnected');
|
|
unsubscribe();
|
|
clearInterval(heartbeat);
|
|
controller.close();
|
|
});
|
|
},
|
|
});
|
|
|
|
return new Response(stream, {
|
|
headers: {
|
|
'Content-Type': 'text/event-stream',
|
|
'Cache-Control': 'no-cache',
|
|
'Connection': 'keep-alive',
|
|
'X-Accel-Buffering': 'no', // Disable nginx buffering
|
|
},
|
|
});
|
|
}
|