{ config, lib, ... }:
let
  cfg = config.modules.services.syncthing;
  fqdn = "${cfg.subdomain}.${config.networking.domain}";
in
{
  options.modules.services.syncthing = {
    enable = lib.mkEnableOption "Enable Syncthing";
    dataDir = lib.mkOption {
      type = lib.types.str;
    };
    subdomain = lib.mkOption {
      type = lib.types.str;
    };
    port = lib.mkOption {
      type = lib.types.int;
      default = 8384;
    };
  };

  config = lib.mkIf cfg.enable {
    services.syncthing = {
      enable = true;
      dataDir = cfg.dataDir;
      openDefaultPorts = true;
      guiAddress = "[::1]:${toString cfg.port}";
      settings.gui.insecureSkipHostCheck = true;
    };

    modules.services.webserver = {
      enable = lib.mkDefault true;
      vHosts.${fqdn}.locations."/".proxyPort = cfg.port;
    };
  };
}