events {
    worker_connections 1024;
}

http {
    include       /etc/nginx/mime.types;
    default_type  application/octet-stream;

    sendfile on;
    keepalive_timeout 65;

    upstream cyberverse_server {
        server cyberverse-server:8080;
    }

    upstream livekit_server {
        server livekit:7880;
    }

    server {
        listen 80;
        server_name _;

        # Frontend static files
        root /usr/share/nginx/html;
        index index.html;

        # SPA fallback
        location / {
            try_files $uri $uri/ /index.html;
        }

        # API proxy
        location /api/ {
            proxy_pass http://cyberverse_server;
            proxy_set_header Host $host;
            proxy_set_header X-Real-IP $remote_addr;
            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        }

        # WebSocket proxy
        location /ws/ {
            proxy_pass http://cyberverse_server;
            proxy_http_version 1.1;
            proxy_set_header Upgrade $http_upgrade;
            proxy_set_header Connection "upgrade";
            proxy_set_header Host $host;
            proxy_read_timeout 3600s;
        }

        # LiveKit WebSocket proxy (for WebRTC signaling)
        location /livekit/ {
            proxy_pass http://livekit_server/;
            proxy_http_version 1.1;
            proxy_set_header Upgrade $http_upgrade;
            proxy_set_header Connection "upgrade";
            proxy_set_header Host $host;
        }
    }
}