# ============================================================================
# Windows Subsystem for Linux (WSL) Configuration
# ============================================================================
# Configuration for NixOS running in WSL2 on Windows.
# Integrates with nixos-wsl for WSL-specific functionality.

{
  lib,
  config,
  ...
}:

with lib;

let
  cfg = config.athenix.hw.nix-wsl;
in
{
  options.athenix.hw.nix-wsl = mkOption {
    type = types.submodule {
      options = {
        enable = mkOption {
          type = types.bool;
          default = false;
          description = "Enable Windows Subsystem for Linux hardware configuration.";
        };
      };
    };
    default = { };
    description = "WSL hardware type configuration.";
  };

  # WSL user option (at module level, not inside config)
  options.athenix.host.wsl.user = lib.mkOption {
    type = lib.types.str;
    default = "engr-ugaif";
    description = ''
      The default user to automatically log in as when starting WSL.

      This user must be enabled via athenix.users.<username>.enable = true.
      Tip: Use athenix.forUser = "username" as a shortcut to set both.
    '';
    example = "alice";
  };

  config = mkIf cfg.enable {
    # ========== WSL Configuration ==========
    wsl.enable = true;
    # Use forUser if set, otherwise fall back to wsl.user option
    wsl.defaultUser =
      if config.athenix.forUser != null then config.athenix.forUser else config.athenix.host.wsl.user;

    # ========== Software Profile ==========
    athenix.sw.enable = lib.mkDefault true;
    athenix.sw.headless.enable = lib.mkDefault true;

    # ========== Remote Development ==========
    services.vscode-server.enable = true;

    # ========== Disable Irrelevant Systems ==========
    # WSL doesn't use traditional boot or disk management
    disko.enableConfig = lib.mkForce false;
    boot.loader.systemd-boot.enable = lib.mkForce false;
    boot.loader.grub.enable = lib.mkForce false;

    # WSL manages its own networking
    systemd.network.enable = lib.mkForce false;

    # Provide dummy values for required options from boot.nix
    athenix.host.filesystem.device = "/dev/null";
    athenix.host.filesystem.swapSize = "0G";

    # WSL doesn't use installer ISOs
    athenix.host.buildMethods = lib.mkDefault [ ];
  };
}