flake.nix

{
  inputs = {
    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
  };

  outputs = inputs@{ self, nixpkgs }:
    let
      inherit (self) outputs;
      system = "x86_64-linux";
      inherit (nixpkgs) lib;
      pkgs = nixpkgs.legacyPackages.${system};
      # Helper to collect all packages
      allPackages = with self.packages.${system}; [
        ilia
        regolith-powerd
        regolith-displayd
        regolith-inputd
        regolith-ftue
        xrescat
        rofication
        remontoire
        trawl
        i3xrocks
        libtrawldb
        regolith-look-extra
        i3status-rs
        sway-regolith
        regolith-session
        i3-swap-focus
        regolith-xresources
        regolith-look-default
        regolith-systemd-units
        regolith-i3status-config
        regolith-session-wayland
      ];
    in
    {
      # regolith-nix module
      # nixosModules.regolith = import ./regolith.nix;

      # this section can be run using nix run .#<package-name>    --> https://nixos.wiki/wiki/Flakes
      # can perform build checks unsing nix build .#<package-name> --> https://nixos.wiki/wiki/Flakes
      packages."x86_64-linux".ilia = pkgs.callPackage ./packages/ilia.nix { }; # todo--> Stablize --> different icon theme crashes ilia

      # todo --> Error :-
      #(process:171187): GLib-GIO-ERROR **: 05:32:45.056: Settings schema 'org.gnome.settings-daemon.plugins.power' is not installed
      packages."x86_64-linux".regolith-powerd = pkgs.callPackage ./packages/regolith-powerd.nix { };

      
      packages."x86_64-linux".regolith-displayd = pkgs.callPackage ./packages/regolith-displayd.nix { };

      #works
      packages."x86_64-linux".regolith-inputd = pkgs.callPackage ./packages/regolith-inputd.nix { };

      packages."x86_64-linux".regolith-ftue = pkgs.callPackage ./packages/regolith-ftue.nix { };

      packages."x86_64-linux".xrescat = pkgs.callPackage ./packages/xrescat.nix { };

      packages."x86_64-linux".rofication = pkgs.callPackage ./packages/rofication.nix { };

      packages."x86_64-linux".remontoire = pkgs.callPackage ./packages/remontoire.nix { };

      packages."x86_64-linux".trawl = pkgs.callPackage ./packages/trawl.nix { };

      packages."x86_64-linux".i3xrocks = pkgs.callPackage ./packages/i3xrocks.nix { };

      packages."x86_64-linux".libtrawldb = pkgs.callPackage ./packages/libtrawldb.nix { };

      packages."x86_64-linux".regolith-look-extra = pkgs.callPackage ./packages/regolith-look-extra.nix { };

      packages."x86_64-linux".i3status-rs = pkgs.callPackage ./packages/i3status-rs.nix { };

      packages."x86_64-linux".sway-regolith = pkgs.callPackage ./sway-regolith/default.nix { };

      packages."x86_64-linux".regolith-session = pkgs.callPackage ./packages/regolith-session.nix { };

      packages."x86_64-linux".regolith-wm-config = pkgs.callPackage ./packages/regolith-wm-config.nix { };

      packages."x86_64-linux".regolith-look-default = pkgs.callPackage ./packages/regolith-look-default.nix { };

      packages."x86_64-linux".i3-swap-focus = pkgs.callPackage ./packages/i3-swap-focus.nix { };

      packages."x86_64-linux".regolith-systemd-units = pkgs.callPackage ./packages/regolith-systemd-units.nix { };

      packages."x86_64-linux".regolith-i3status-config = pkgs.callPackage ./packages/regolith-i3status-config.nix { };

      packages."x86_64-linux".regolith-styles = pkgs.callPackage ./packages/regolith-styles.nix { };

      packages."x86_64-linux".regolith-xresources = pkgs.callPackage ./xresources/package.nix { };
      # the default runScript is fish and this creates a shell that follows fhs file format -->https://ryantm.github.io/nixpkgs/builders/special/fhs-environments/
      packages."x86_64-linux".fhs = pkgs.callPackage ./fhs.nix { };

      # this runs via --> nix run .#nixosConfigurations.vm.config.system.build.vm
      devShells.${system}.default =
        let
          fhs = pkgs.callPackage ./fhs.nix { };
        in
        pkgs.mkShell {
          packages = [ fhs ] ++ allPackages;
          shellHook = ''
            exec ${fhs}/bin/regolith-environment
          '';
        };
      #pass regolith-session-wayland to regolith.nix
      # nixosModules.regolith-session-wayland = { config, pkgs, lib, ... }:
      # let
      #   regolith-session = pkgs.callPackage ./packages/regolith-session.nix {};
      #   regolith-session-wayland = pkgs.callPackage ./fhs.nix {
      #     runScript = "${regolith-session}/bin/regolith-session-wayland";
      #     name = "regolith-nix-session-wayland";
      #   };
      # in {
      #   imports = [ ./modules/regolith.nix ];

      #   # Make packages available to the regolith module
      #   _module.args.regolith-session-wayland = regolith-session-wayland;
      # };
      nixosModules.regolith = import ./modules/regolith.nix;
      # here I am trying to set runScript to regolith-session-wayland package 
      #directly runs session-wayland
      packages."x86_64-linux".regolith-session-wayland =
        let
          regolith-session = pkgs.callPackage ./packages/regolith-session.nix { };
        in
        pkgs.callPackage ./fhs.nix {
          runScript = "${regolith-session}/bin/regolith-session-wayland";
          # name = "regolith-nix-session-wayland";
        };

      # this also runs via --> nix run .#<package-name>
      packages."x86_64-linux".regolith-session-x11 =
        let
          regolith-session = pkgs.callPackage ./packages/regolith-session.nix { };
        in
        pkgs.callPackage ./fhs.nix {
          runScript = "${regolith-session}/bin/regolith-session-x11";
        };

      # this is the nixos configuration for the vm !todo
      nixosConfigurations.vm = nixpkgs.lib.nixosSystem {
        inherit system;
        modules = [
          ({ pkgs, ... }: {
            # Basic system configuration
            fileSystems."/" = {
              device = "none";
              fsType = "tmpfs";
              options = [ "size=2G" "mode=755" ];
            };

            boot.loader.grub.enable = true;
            boot.loader.grub.devices = [ "nodev" ];

            # VM-specific settings
            virtualisation.vmVariant = {
              virtualisation = {
                memorySize = 4096; # MB
                cores = 4;
              };
            };
            imports = [
              ./modules/regolith.nix
            ];
            regolith.enable = true;
            # Basic system services
            # services.xserver = {
            #   enable = true;
            #   # displayManager.gdm.enable = true;
            #   # desktopManager.gnome.enable = true;
            # };

            # Packages and user configuration
            environment.systemPackages = allPackages;

            users.users.demo = {
              isNormalUser = true;
              extraGroups = [ "wheel" ];
              initialPassword = "demo";
            };

            system.stateVersion = "23.11";
          })
        ];
      };
    };
}