server {
    listen 80;
    server_name _;

    location / {
        root /usr/share/nginx/html;
        try_files $uri $uri/ /index.html;
    }

    location /api {
        proxy_pass http://localhost:8080;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection 'upgrade';
        proxy_set_header Host $host;
        proxy_cache_bypass $http_upgrade;
        
        # Add timeout configurations
        proxy_connect_timeout 60s;
        proxy_send_timeout 60s;
        proxy_read_timeout 60s;
        
        # Add error handling
        proxy_intercept_errors on;
        error_page 502 503 504 /50x.html;
    }

    location ~ ^/(record|workflow|storage|auth|integration|proxy|api-docs) {
        proxy_pass http://localhost:8080;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection 'keep-alive';  # Ensure connections remain open
        proxy_set_header Connection 'upgrade';
        proxy_set_header Host $host;
        proxy_cache_bypass $http_upgrade;

        # Timeout configurations
        proxy_connect_timeout 60s;
        proxy_send_timeout 60s;
        proxy_read_timeout 60s;

        # Error handling for these routes
        proxy_intercept_errors on;
        error_page 502 503 504 /50x.html;
    }
}