{ config, lib, pkgs, self, ... }:
let
  cfg = config.mpd-discord-presence;
  defaultPkg =
    self.packages.${pkgs.stdenv.hostPlatform.system}.mpd-discord-presence;
in
{
  options.services.mpd-discord-presence = {
    enable = lib.mkEnableOption "mpd-discord-presence (systemd user service)";

    package = lib.mkOption {
      type = lib.types.package;
      default = defaultPkg;
      description = "Package providing the mpd-discord-presence binary.";
    };

    extraArgs = lib.mkOption {
      type = lib.types.listOf lib.types.str;
      default = [];
      description = "Extra CLI args passed to mpd-discord-presence.";
    };
  };

  config = lib.mkIf cfg.enable {
    home.packages = [ cfg.package ];

    systemd.user.services.mpd-discord-presence = {
      Unit = {
        Description = "MPD Discord Presence";
        Wants = [ "mpd.service" ];
        After = [ "mpd.service" "network-online.target" ];
      };

      Service = {
        ExecStart = "${cfg.package}/bin/mpd-discord-presence ${lib.escapeShellArgs cfg.extraArgs}";
        Restart = "on-failure";
        RestartSec = 2;
      };

      Install = {
        WantedBy = [ "default.target" ];
      };
    };
  };
}