# NOTE: To generate self-signed certs use: `openssl req -x509 -nodes -days 365 -newkey rsa:2048 -keyout ./privkey.pem -out ./fullchain.pem`
# For dhparams: `openssl dhparam -out ./ssl-dhparam.pem 4096`
# Example for options-ssl-nginx.conf:
# ```
# ssl_session_cache shared:le_nginx_SSL:10m;
# ssl_session_timeout 1440m;
# ssl_protocols TLSv1.2 TLSv1.3;
# ssl_prefer_server_ciphers off;
# ssl_ciphers "ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384";
# ```
# For certbot to generate new keys: `certbot certonly --manual --manual-public-ip-logging-ok --preferred-challenges dns-01 --server https://acme-v02.api.letsencrypt.org/directory -d "*.voronind.com" -d voronind.com`
{
	pkgs,
	util,
	...
} @args: let
	virtualHosts = util.catSet (util.ls ./nginx) args;
in {
	environment.systemPackages = with pkgs; [ certbot ];

	services.nginx = {
		inherit virtualHosts;
		enable = true;
		clientMaxBodySize        = "4096m";
		recommendedOptimisation  = true;
		recommendedProxySettings = true;
		appendConfig = util.trimTabs ''
			worker_processes 4;
		'';
		eventsConfig = util.trimTabs ''
			worker_connections 4096;
		'';
		appendHttpConfig = util.trimTabs ''
			proxy_max_temp_file_size 0;
			proxy_buffering off;

			server {
				listen 443 ssl default_server;
				server_name _;

				ssl_certificate /etc/letsencrypt/live/voronind.com/fullchain.pem;
				ssl_certificate_key /etc/letsencrypt/live/voronind.com/privkey.pem;
				include /etc/letsencrypt/conf/options-ssl-nginx.conf;
				ssl_dhparam /etc/letsencrypt/conf/ssl-dhparams.pem;

				return 403;
			}
		'';
	};
}