#  My first run with nix. The config is based on Matthias Benaets config and youtube tutorial
#  https://github.com/MatthiasBenaets/nixos-config
#  https://www.youtube.com/watch?v=AGVXJ-TIv3Y
#
#  flake.nix *             
#   ├─ ./hosts
#   │   └─ default.nix

{
  description = "Kabbone's peronal NixOS Flake config";

  inputs = {
      nixpkgs-unstable.url = "github:nixos/nixpkgs/nixos-unstable";                  # Nix Packages
      nixpkgs.url = "github:NixOS/nixpkgs/nixos-25.05";
      nixos-hardware.url = "github:NixOS/nixos-hardware/master";

      microvm = {
        url = "github:astro/microvm.nix";
        inputs.nixpkgs.follows = "nixpkgs";
      };

      impermanence.url = "github:nix-community/impermanence";

      home-manager = {                                                      # User Package Management
        url = "github:nix-community/home-manager/release-25.05";
        inputs.nixpkgs.follows = "nixpkgs";
      };

      home-manager-unstable = {                                                      # User Package Management
        url = "github:nix-community/home-manager";
        inputs.nixpkgs.follows = "nixpkgs-unstable";
      };

      agenix = {
        url = "github:ryantm/agenix";
        inputs.nixpkgs.follows = "nixpkgs";
      };

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

      lanzaboote = {
        url = "github:nix-community/lanzaboote/master";
        inputs.nixpkgs.follows = "nixpkgs";
      };

  };

  outputs = { 
    self,
    nixpkgs,
    nixpkgs-unstable,
    nixos-hardware,
    home-manager,
    home-manager-unstable,
    agenix,
    jovian-nixos,
    microvm,
    impermanence,
    lanzaboote,
    ...
  } @ inputs: rec {
    inherit (self) outputs;
    systems = [
      "aarch64-linux"
      "x86_64-linux"
    ];

    forAllSystems = nixpkgs.lib.genAttrs systems;
  #in {
    # Your custom packages
    # Accessible through 'nix build', 'nix shell', etc
    packages = forAllSystems (system: import ./packages nixpkgs.legacyPackages.${system});
    # Formatter for your nix files, available through 'nix fmt'
    # Other options beside 'alejandra' include 'nixpkgs-fmt'
    formatter = forAllSystems (system: nixpkgs.legacyPackages.${system}.alejandra);

    # Your custom packages and modifications, exported as overlays
    overlays = import ./overlays {inherit inputs;};
    # Reusable nixos modules you might want to export
    # These are usually stuff you would upstream into nixpkgs
    #nixosModules = import ./modules/kabbone;
    # Reusable home-manager modules you might want to export
    # These are usually stuff you would upstream into home-manager
    #homeManagerModules = import ./modules/home-manager;


    nixosConfigurations = (                                               # NixOS configurations
      import ./hosts {                                                    # Imports ./hosts/default.nix
        inherit (nixpkgs) lib;
        inherit inputs nixpkgs nixpkgs-unstable nixos-hardware home-manager home-manager-unstable agenix jovian-nixos microvm impermanence lanzaboote;   # Also inherit home-manager so it does not need to be defined here.
        nix.allowedUsers = [ "@wheel" ];
        security.sudo.execWheelOnly = true;
      }
    );

    hydraJobs = {
      "steamdeck" = nixosConfigurations.steamdeck.config.system.build.toplevel;
      "hades" = nixosConfigurations.hades.config.system.build.toplevel;
      "nasbak" = nixosConfigurations.nasbak.config.system.build.toplevel;
      "jupiter" = nixosConfigurations.jupiter.config.system.build.toplevel;
      "lifebook" = nixosConfigurations.lifebook.config.system.build.toplevel;
      "kabtop" = nixosConfigurations.kabtop.config.system.build.toplevel;
      "dmz" = nixosConfigurations.dmz.config.system.build.toplevel;
    };
  };
}