worker_processes 1;
pid /tmp/nginx.pid;

events {
  worker_connections 1024;
}

http {
  include       /etc/nginx/mime.types;
  default_type  application/octet-stream;
  sendfile      on;
  client_max_body_size 25m;

  # Where OmniRoute itself listens internally (not exposed outside the container).
  upstream omniroute_backend {
    server 127.0.0.1:8990;
  }

  server {
    listen 20128;
    server_name _;

    # ---- Static PWA chat UI ----
    # Served under /chat-ui/ so it never collides with OmniRoute's own routes
    # (/, /dashboard, /v1/*, etc). Visit https://<space>.hf.space/chat-ui/
    location /chat-ui/ {
      alias /app/chat-ui/;
      index index.html;
      try_files $uri $uri/ /chat-ui/index.html;
      add_header Cache-Control "no-cache";
    }

    # ---- Everything else -> OmniRoute (dashboard, API, websockets) ----
    location / {
      proxy_pass http://omniroute_backend;
      proxy_http_version 1.1;
      proxy_set_header Upgrade $http_upgrade;
      proxy_set_header Connection "upgrade";
      proxy_set_header Host $host;
      proxy_set_header X-Real-IP $remote_addr;
      proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
      proxy_set_header X-Forwarded-Proto $scheme;
      proxy_buffering off;
      proxy_read_timeout 300s;
      proxy_send_timeout 300s;
    }
  }
}