worker_processes auto;

events {
  worker_connections 1024;
}

http {
  include       mime.types;
  default_type  application/octet-stream;
  sendfile      on;
  keepalive_timeout 65;
  gzip on;
  gzip_types text/plain text/css application/javascript application/json application/wasm model/gltf-binary;

  # Respect a proxy in front of this container (the user's own reverse proxy).
  set_real_ip_from 0.0.0.0/0;
  real_ip_header X-Forwarded-For;

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

    absolute_redirect off;

    # 127.0.0.11 é o DNS interno do Docker. Usar uma variável no proxy_pass
    # (em vez do hostname direto) força o nginx a resolver "anatomia-api"
    # de novo a cada `valid=`, em vez de resolver uma única vez quando o
    # worker sobe e cachear esse IP para sempre — sem isso, recriar o
    # container anatomia-api (rebuild, restart) muda o IP dele e o nginx
    # continua batendo no IP antigo até ser reiniciado manualmente.
    resolver 127.0.0.11 valid=10s;

    location /api/ {
      set $api_upstream anatomia-api:3333;
      proxy_pass http://$api_upstream/api/;
      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;
    }

    location /models/ {
      set $api_upstream anatomia-api:3333;
      proxy_pass http://$api_upstream/models/;
      proxy_http_version 1.1;
      proxy_set_header Host $host;
      proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
      proxy_set_header X-Forwarded-Proto $scheme;
      add_header Cache-Control "public, max-age=604800, immutable";
    }

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