worker_processes auto;
pid /tmp/nginx.pid;

events {
  worker_connections 1024;
}

http {
  access_log /dev/stdout;
  error_log /dev/stderr info;
  include /etc/nginx/mime.types;
  default_type application/octet-stream;
  sendfile on;
  tcp_nodelay on;

  map $http_upgrade $connection_upgrade {
    default upgrade;
    '' close;
  }

  server {
    listen ${PROXY_PORT};
    server_name _;
    client_max_body_size 0;

    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_set_header Upgrade $http_upgrade;
    proxy_set_header Connection $connection_upgrade;
    proxy_read_timeout 86400;
    proxy_send_timeout 86400;
    proxy_buffering off;

    location ~ ^/proxy/([0-9]+)/(.*)$ {
      proxy_set_header X-Forwarded-Prefix /proxy/$1;
      proxy_pass http://127.0.0.1:$1/$2$is_args$args;
    }

    location ~ ^/proxy/([0-9]+)$ {
      return 308 /proxy/$1/;
    }

    location ~ ^/([0-9]+)/(.*)$ {
      proxy_set_header X-Forwarded-Prefix /$1;
      proxy_pass http://127.0.0.1:$1/$2$is_args$args;
    }

    location ~ ^/([0-9]+)$ {
      return 308 /$1/;
    }

    location / {
      proxy_pass http://127.0.0.1:${OPENCLAW_PORT};
    }
  }
}