user  nginx;
worker_processes  1;

error_log  /var/log/nginx/error.log notice;
pid        /var/run/nginx.pid;


events {
    worker_connections  1024;
}

http {
    include       /etc/nginx/mime.types;
    default_type  application/octet-stream;
    log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
                      '$status $body_bytes_sent "$http_referer" '
                      '"$http_user_agent" "$http_x_forwarded_for"';

    access_log  /var/log/nginx/access.log main;
    sendfile        on;
    keepalive_timeout  65;

    proxy_cache_path /var/cache/nginx keys_zone=owl_cache:20m inactive=24h;

    upstream backend {
        server owlboard-backend:8460;
    }

    server {
        listen      80;
        server_name localhost;
        proxy_cache owl_cache;

        add_header Content-Security-Policy "default-src 'self'";

        location / {
            root /site-static/;
            index index.html;
            gzip_static on;
            brotli_static on;
            error_page 404 /404.html;
            expires 3d;
            add_header Cache-Control "public, no-transform";
        }

        location /api/ {
            proxy_pass http://backend;
            proxy_cache_key $scheme://$host$uri$is_args$query_string;
            proxy_ignore_headers Cache-Control;
            proxy_cache_valid 200 2m;  # Evaluate whether 2m or 1m is more appropriate
            expires 2m;
            add_header Cache-Control "private, no-transform";
        }

        location /api/stats/ {
            proxy_pass http://backend;
            expires 20;
            add_header Cache-Control "public, no-transform";
        }

        location /api/v1/list/ {
            proxy_pass http://backend;
            proxy_cache_key $scheme://$host$uri$is_args$query_string;
            proxy_ignore_headers Cache-Control;
            proxy_cache_valid 200 10080m;
            expires 3d;
            add_header Cache-Control "public, no-transform";
        }
    }
}