nixos-config/modules/services/input-remapper/default.nix

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

let
  cfg = config.ptw.services.input-remapper;
in {
  options.ptw.services.input-remapper = {
    enable = lib.mkEnableOption "Enable the input-remapper service and install it";
    postStartCommand = lib.mkOption {
      default = "";
      description = "Command to be executed after the input-remapper service has been started";
      # type = ;
    };
  };

  config = lib.mkIf cfg.enable {
    # TODO: Assert that uinput is in kernelModules
    services.udev = {
      packages = with pkgs; [ input-remapper ];
      extraRules = ''
        KERNEL=="uinput", GROUP="input", MODE="0660"
      '';
    };

    environment.systemPackages = [
      pkgs.input-remapper # Custom package
    ];
    
    systemd.user.services.input-remapper = {
      description = "A tool to change the mapping of your input device buttons";
      wantedBy = [ "default.target" ];
      serviceConfig = {
        Type = "simple";
        ExecStart = "${pkgs.input-remapper}/bin/input-remapper-service";
        Restart = "always";
        # NOTE: The Tartarus may not be connected, so don't fail if we cannot set the preset
        ExecStartPost = cfg.postStartCommand;
      };
    };
  };
}