{ config, lib, ... }:
let
  cfg = config.services.caddy;

  vw = {
    domain = config.services.vaultwarden.domain;
    port = config.services.vaultwarden.config.ROCKET_PORT;
  };

  navidrome = {
    domain = "music.sorre.internal";
    port = config.services.navidrome.settings.Port;
  };
in
{
  services.caddy = {
    enable = true;
    virtualHosts = {
      "${vw.domain}" = {
        listenAddresses = [ "100.64.0.6" ];
        extraConfig = ''
          tls {$CREDENTIALS_DIRECTORY}/sagittarius.crt {$CREDENTIALS_DIRECTORY}/sagittarius.key

          reverse_proxy :${toString vw.port} {
            header_up True-Client-IP {remote_host}
            header_up X-Real-IP {remote_host}
          }
        '';
      };

      "${navidrome.domain}" = {
        listenAddresses = [ "100.64.0.6" ];
        extraConfig = ''
          tls {$CREDENTIALS_DIRECTORY}/sagittarius.crt {$CREDENTIALS_DIRECTORY}/sagittarius.key

          reverse_proxy :${toString navidrome.port} {
            header_up True-Client-IP {remote_host}
            header_up X-Real-IP {remote_host}
            flush_interval -1
          }
        '';
      };
    };
  };

  systemd.services.caddy = lib.mkIf cfg.enable {
    preStart = ''
      echo "Credentials directory: $CREDENTIALS_DIRECTORY" >&2
      if [ ! -d "$CREDENTIALS_DIRECTORY" ]; then
        echo "Credentials dir not found!" >&2
        exit 1
      fi
    '';
    serviceConfig.LoadCredential = [
      "sagittarius.crt:/var/secrets/certs/sagittarius.crt"
      "sagittarius.key:/var/secrets/certs/sagittarius.key"
    ];
  };
}