worker_processes auto;
worker_rlimit_nofile 100000;

events {
    worker_connections 2048; # Increased to handle more connections
    use epoll; # Use epoll for Linux systems for better performance
}

http {
    include /etc/nginx/mime.types;
    default_type application/octet-stream;
    charset utf-8;  # Ensure UTF-8 encoding is used by default

    sendfile on;
    tcp_nopush on;
    tcp_nodelay on;
    keepalive_timeout 65; # Adjusted keepalive timeout for better resource management
    types_hash_max_size 2048; # Increase the hash bucket size for better performance

    gzip on;
    gzip_types text/plain text/css application/json application/javascript text/xml application/xml application/xml+rss text/javascript;
    gzip_proxied any;
    gzip_comp_level 6;
    gzip_vary on;
    gzip_min_length 256;
    gzip_buffers 16 8k;
    gzip_http_version 1.1;

    proxy_cache_path /tmp/cache levels=1:2 keys_zone=static_cache:100m inactive=24h max_size=1g;
    proxy_cache_key "$scheme$request_method$host$request_uri";

    client_body_buffer_size 128k;
    client_max_body_size 10m;
    client_header_buffer_size 1k;
    large_client_header_buffers 4 16k;

    server {
        listen 8111;
        server_name localhost;

        root /home/me/aesthetic-computer/system/public;
        index index.html index.htm;

        location / {
            try_files $uri $uri/ =404;
            etag on;
            if_modified_since exact;

            #proxy_cache static_cache;
            #proxy_cache_valid 200 1d;
            #add_header X-Proxy-Cache $upstream_cache_status;
            
            # Cache bypass and revalidation
            # proxy_cache_bypass $http_cache_control;
            # proxy_no_cache $http_cache_control;
            #proxy_cache_revalidate on;

            # Ensure cache invalidation on file changes
            #open_file_cache max=1000 inactive=20s;
            #open_file_cache_valid 30s;
            #open_file_cache_min_uses 2;
            #open_file_cache_errors on;
        }

        access_log off;
        error_log /var/log/nginx/error.log warn; # Logging errors for better troubleshooting
    }
}