flake.nix

{
  description = "Rob's system configuration";

  inputs = {
    nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
    home-manager.url = "github:nix-community/home-manager";
    darwin = {
      url = "github:LnL7/nix-darwin/master";
      inputs.nixpkgs.follows = "nixpkgs";
    };

    flake-utils.url = "github:numtide/flake-utils";

    # nix-homebrew = {
    #   url = "github:zhaofengli-wip/nix-homebrew";
    # };
    # homebrew-bundle = {
    #   url = "github:homebrew/homebrew-bundle";
    #   flake = false;
    # };
    # homebrew-core = {
    #   url = "github:homebrew/homebrew-core";
    #   flake = false;
    # };
    # homebrew-cask = {
    #   url = "github:homebrew/homebrew-cask";
    #   flake = false;
    # };
    #
    # neovim-nightly-overlay.url = "github:nix-community/neovim-nightly-overlay";
  };

  # outputs = { self, darwin, nix-homebrew, homebrew-bundle, homebrew-core, homebrew-cask, home-manager, flake-utils, nixpkgs, ...} @ inputs:
  outputs = { self, darwin,home-manager, flake-utils, nixpkgs, ...} @ inputs:
  let
    user = "rob";

    linuxSystems = [ "x86_64-linux" "aarch64-linux" ];
    darwinSystems = [ "aarch64-darwin" "x86_64-darwin" ];
    forAllSystems = f: nixpkgs.lib.genAttrs (linuxSystems ++ darwinSystems) f;
    devShell = system: let pkgs = nixpkgs.legacyPackages.${system}; in {
      default = with pkgs; mkShell {
        nativeBuildInputs = with pkgs; [ bashInteractive git ];
        shellHook = with pkgs; ''
          export EDITOR=vim
        '';
      };
    };
    mkApp = scriptName: system: {
      type = "app";
      program = "${(nixpkgs.legacyPackages.${system}.writeScriptBin scriptName ''
        #!/usr/bin/env bash
        PATH=${nixpkgs.legacyPackages.${system}.git}/bin:$PATH
        echo "Running ${scriptName} for ${system}"
        exec ${self}/apps/${system}/${scriptName}
      '')}/bin/${scriptName}";
    };
    mkLinuxApps = system: {
      "apply" = mkApp "apply" system;
      "build-switch" = mkApp "build-switch" system;
      "copy-keys" = mkApp "copy-keys" system;
      "create-keys" = mkApp "create-keys" system;
      "check-keys" = mkApp "check-keys" system;
      "install" = mkApp "install" system;
    };
    mkDarwinApps = system: {
      "apply" = mkApp "apply" system;
      "build" = mkApp "build" system;
      "build-switch" = mkApp "build-switch" system;
      "copy-keys" = mkApp "copy-keys" system;
      "create-keys" = mkApp "create-keys" system;
      "check-keys" = mkApp "check-keys" system;
      "rollback" = mkApp "rollback" system;
    };
  in 
  {
    devShells = forAllSystems devShell;
    apps = nixpkgs.lib.genAttrs linuxSystems mkLinuxApps // nixpkgs.lib.genAttrs darwinSystems mkDarwinApps;

    darwinConfigurations = nixpkgs.lib.genAttrs darwinSystems (system: let
      user = "rob";
    in 
      darwin.lib.darwinSystem {
        inherit system;
        specialArgs = inputs; 
        modules = [
          home-manager.darwinModules.home-manager
          # nix-homebrew.darwinModules.nix-homebrew
          # {
          #   nix-homebrew = {
          #     inherit user;
          #     enable = true;
          #     taps = {
          #       "homebrew/homebrew-core" = homebrew-core;
          #       "homebrew/homebrew-cask" = homebrew-cask;
          #       "homebrew/homebrew-bundle" = homebrew-bundle;
          #     };
          #     mutableTaps = false;
          #     autoMigrate = true;
          #   };
          # }
          ./hosts/darwin
        ];
      }
    );
  };

}