teamviewer: add services.teamviewer.package Option + misc improvemens (#346365)

{ config, lib, pkgs, ... }:

with lib;

let

  cfg = config.services.teamviewer;

in

{

  ###### interface

  options = {

    services.teamviewer.enable = mkEnableOption "TeamViewer daemon";

    services.teamviewer = {

      enable = lib.mkEnableOption "TeamViewer daemon & system package";

      package = lib.mkPackageOption pkgs "teamviewer" { };

    };

  };

  ###### implementation

  config = mkIf (cfg.enable) {

    environment.systemPackages = [ pkgs.teamviewer ];

  config = lib.mkIf (cfg.enable) {

    environment.systemPackages = [ cfg.package ];

    services.dbus.packages = [ pkgs.teamviewer ];

    services.dbus.packages = [ cfg.package ];

    systemd.services.teamviewerd = {

      description = "TeamViewer remote control daemon";

      wantedBy = [ "multi-user.target" ];

      wants = [ "network-online.target" ];

      after = [ "network-online.target" "network.target" "dbus.service" ];

      after = [

        "network-online.target"

        "network.target"

        "dbus.service"

      ];

      requires = [ "dbus.service" ];

      preStart = "mkdir -pv /var/lib/teamviewer /var/log/teamviewer";

      startLimitBurst = 10;

      serviceConfig = {

        Type = "simple";

        ExecStart = "${pkgs.teamviewer}/bin/teamviewerd -f";

        ExecStart = "${cfg.package}/bin/teamviewerd -f";

        PIDFile = "/run/teamviewerd.pid";

        ExecReload = "${pkgs.coreutils}/bin/kill -HUP $MAINPID";

        Restart = "on-abort";

      };

    };

  };

}