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path: root/modules/by-name/xd/xdg/module.nix
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{
  pkgs,
  lib,
  ...
}: let
  cmd = pkgs.writeShellApplication {
    name = "lf_wrapper";

    runtimeInputs = [pkgs.lf pkgs.alacritty];
    inheritPath = true;

    text = builtins.readFile ./lf-wrapper.sh;
  };

  tfcConfigFile = (pkgs.formats.ini {}).generate "xdg-desktop-portal-termfilechooser.ini" {
    filechooser = {
      default_dir = "/tmp";
      cmd = "${lib.getExe cmd}";
    };
  };
in {
  services.dbus.enable = true;
  xdg = {
    portal = {
      enable = true;
      wlr = {
        enable = true;
      };
      config = {
        common = {
          # NOTE: The next entry is supposedly needed for gtk based apps <2023-08-31>
          default = ["wlr" "gtk"];
          "org.freedesktop.impl.portal.FileChooser" = ["termfilechooser"];
        };

        # TODO: Also activate, when on another wlr-based compositor <2023-11-25>
        river = {
          default = ["wlr" "gtk"];
          "org.freedesktop.impl.portal.FileChooser" = ["termfilechooser"];
        };
      };

      extraPortals = [
        pkgs.xdg-desktop-portal-gtk
        pkgs.xdg-desktop-portal-wlr
        pkgs.xdg-desktop-portal-termfilechooser
      ];
    };
  };

  environment.etc."xdg/xdg-desktop-portal-termfilechooser/config".source = tfcConfigFile;

  systemd.user.services.xdg-desktop-portal-termfilechooser = {
    serviceConfig.ExecStart = [
      ""
      "${pkgs.xdg-desktop-portal-termfilechooser}/libexec/xdg-desktop-portal-termfilechooser --loglevel=TRACE"
    ];
  };
  # TODO: mime = {};
}