# nixos-config - My current NixOS configuration
#
# Copyright (C) 2025 Benedikt Peetz <benedikt.peetz@b-peetz.de>
# SPDX-License-Identifier: GPL-3.0-or-later
#
# This file is part of my nixos-config.
#
# You should have received a copy of the License along with this program.
# If not, see <https://www.gnu.org/licenses/gpl-3.0.txt>.
{
  config,
  pkgs,
  libraries,
  lib,
  ...
}: let
  cfg = config.soispha.services.mpdpopm;

  settingsFormat = pkgs.formats.json {};
in {
  options.soispha.services.mpdpopm = {
    enable = libraries.base.options.mkEnable "mpdpopm";

    settings = lib.mkOption {
      # Setting this type allows for correct merging behavior
      inherit (settingsFormat) type;
      default = {};
      description = ''
        Configuration for foo, see
        <link xlink:href="https://example.com/docs/foo"/>
        for supported settings.
      '';
    };
  };

  config = lib.mkIf cfg.enable {
    soispha.services.mpdpopm.settings = {
      version = "1";
      log = "${config.home-manager.users.soispha.xdg.dataHome}/mpdpopm/log";

      conn.Local = {
        path = config.home-manager.users.soispha.home.sessionVariables.MPD_HOST;
      };

      local_music_dir = config.soispha.services.mpd.directories.music;
    };

    home-manager.users.soispha = {
      systemd.user.services.mpdpopm = {
        Unit = {
          Description = "mpdpopm ratings and playcounts for MPD";
          Requires = ["mpd.service"];
          After = ["mpd.service"];
        };

        Service = {
          Restart = "on-failure";
          ExecStart = "${lib.getExe' pkgs.mpdpopm "mpdpopmd"} --config ${settingsFormat.generate "config.json" cfg.settings}";
        };

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