# ============================================================================
# Common Host Module
# ============================================================================
# This module contains all the common configuration shared by all host types.
# It is automatically imported by the fleet generator for every host.

{
  config,
  lib,
  inputs,
  ...
}:
let
  # Import all hardware modules so they're available for enabling
  hwTypes = import ../hw { inherit inputs; };
  hwModules = lib.attrValues hwTypes;
in
{
  imports = [
    ./fs.nix
    ./boot.nix
    ./user-config.nix
    ./fleet-option.nix
    ../sw
    inputs.vscode-server.nixosModules.default
    inputs.nixos-wsl.nixosModules.default
  ] ++ hwModules;

  options.athenix = {
    forUser = lib.mkOption {
      type = lib.types.nullOr lib.types.str;
      default = null;
      description = ''
        Convenience option to configure a host for a specific user.

        When set, automatically:
        - Enables the user account (athenix.users.<username>.enable = true)
        - Sets as default WSL user (on WSL systems)

        The username must exist in athenix.users (defined in users.nix).
      '';
      example = "engr-ugaif";
    };
    host.useHostPrefix = lib.mkOption {
      type = lib.types.bool;
      default = true;
      description = ''
        Whether to prepend the hardware type prefix to the hostname.

        When true:
        - "nix-laptop" with device "1" → hostname "nix-laptop1"
        - "nix-wsl" with device "alice" → hostname "nix-wsl-alice"

        When false:
        - Device name becomes the full hostname (useful for custom names)
      '';
    };
  };

  config = lib.mkMerge [
    (lib.mkIf (config.athenix.forUser != null) {
      athenix.users.${config.athenix.forUser}.enable = true;
    })
    {
      system.stateVersion = "25.11";
      nix.settings.experimental-features = [
        "nix-command"
        "flakes"
      ];
    }
  ];
}