events {
    worker_connections 1024;
}

http {
    port_in_redirect on;
    absolute_redirect off;

    server {
        listen 8080;
        server_name localhost;

        # Global timeout settings for all locations
        proxy_read_timeout 86400s;    # 24 hours
        proxy_send_timeout 86400s;    # 24 hours
        proxy_connect_timeout 60s;    # Connection establishment timeout

        # API requests
        location /api {
            proxy_pass http://localhost:3001;
            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;
        }

        # WebSocket requests
        location /ws {
            proxy_pass http://localhost:3001;
            proxy_http_version 1.1;
            proxy_set_header Upgrade $http_upgrade;
            proxy_set_header Connection "upgrade";
            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;
        }

        # Frontend requests
        location / {
            proxy_pass http://localhost:3000;
            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;
        }

        # Security headers
        add_header Strict-Transport-Security "max-age=31536000; includeSubDomains" always;
        add_header X-XSS-Protection "1; mode=block" always;
        add_header X-Content-Type-Options "nosniff" always;
        add_header X-Frame-Options "SAMEORIGIN" always;
        server_tokens off;
    }
}