server {
    listen 80;
    server_name _;

    root  /usr/share/nginx/html;
    index index.html;

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

    gzip on;
    gzip_types text/plain text/css application/json application/javascript
               text/xml application/xml application/xml+rss text/javascript;

    # SPA fallback — unknown paths serve index.html so React Router works
    location / {
        try_files $uri $uri/ /index.html;
    }

    # Proxy all /api/* requests to the Spring Boot backend
    location /api/ {
        proxy_pass         http://backend:8080;
        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_read_timeout 120s;
    }

    # Convenience: proxy Swagger UI and OpenAPI spec
    location /swagger-ui/ {
        proxy_pass       http://backend:8080;
        proxy_http_version 1.1;
        proxy_set_header Host $host;
    }

    location /v3/api-docs {
        proxy_pass       http://backend:8080;
        proxy_http_version 1.1;
        proxy_set_header Host $host;
    }
}