server {
  listen 80;
  server_name _;
  root /usr/share/nginx/html;
  index index.html;

  location /api/ {
    proxy_pass http://zeavis-api:3000/api/;
    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;
  }

  # Expose API metrics through the web endpoint (Prometheus scrape target)
  location /metrics {
    proxy_pass http://zeavis-api:3000/metrics;
    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 telemetry dashboard to orange VPS (via Tailscale)
  location /telemetry/ {
    proxy_pass http://100.96.248.86:8181/;
    proxy_http_version 1.1;
    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_connect_timeout 5s;
    proxy_send_timeout 35s;
    proxy_read_timeout 35s;
    proxy_buffering on;
    proxy_buffer_size 4k;
    proxy_buffers 8 4k;
    proxy_busy_buffers_size 8k;
  }

  location / {
    try_files $uri $uri/ /index.html;
  }
}