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{ pkgs, lib, ... }:

let
  cagebreakConfigfile = pkgs.writeText "config" ''
    workspaces 1
    escape C-t
    bind t exec env DISPLAY=:0 ${pkgs.xterm}/bin/xterm -cm -pc
  '';
in
{
  name = "cagebreak";
  meta = with pkgs.lib.maintainers; {
    maintainers = [ berbiche ];
  };

  nodes.machine =
    { config, ... }:
    {
      # Automatically login on tty1 as a normal user:
      imports = [ ./common/user-account.nix ];
      services.getty.autologinUser = "alice";
      programs.bash.loginShellInit = ''
        if [ "$(tty)" = "/dev/tty1" ]; then
          set -e

          mkdir -p ~/.config/cagebreak
          cp -f ${cagebreakConfigfile} ~/.config/cagebreak/config

          cagebreak
        fi
      '';

      hardware.graphics.enable = true;
      programs.xwayland.enable = true;
      security.polkit.enable = true;
      environment.systemPackages = [
        pkgs.cagebreak
        pkgs.wayland-utils
      ];

      # Need to switch to a different GPU driver than the default one (-vga std) so that Cagebreak can launch:
      virtualisation.qemu.options = [ "-vga none -device virtio-gpu-pci" ];
    };

  enableOCR = true;

  testScript =
    { nodes, ... }:
    let
      user = nodes.machine.users.users.alice;
      XDG_RUNTIME_DIR = "/run/user/${toString user.uid}";
    in
    ''
      start_all()
      machine.wait_for_unit("multi-user.target")
      machine.wait_for_file("${XDG_RUNTIME_DIR}/wayland-0")

      with subtest("ensure wayland works with wayinfo from wallutils"):
          print(machine.succeed("env XDG_RUNTIME_DIR=${XDG_RUNTIME_DIR} wayland-info"))

      # TODO: Fix the XWayland test (log the cagebreak output to debug):
      # with subtest("ensure xwayland works with xterm"):
      #     machine.send_key("ctrl-t")
      #     machine.send_key("t")
      #     machine.wait_until_succeeds("pgrep xterm")
      #     machine.wait_for_text("${user.name}@machine")
      #     machine.screenshot("screen")
      #     machine.send_key("ctrl-d")
    '';
}