# https://nix.dev/
# https://github.com/barrucadu/nixfiles/tree/master
# https://bitbucket.org/bzz/nixos/src/master/configuration.nix
# https://grahamc.com/blog/erase-your-darlings/
# https://github.com/Misterio77/nix-starter-configs
# https://github.com/solomon-b/nixos-config

{
  inputs = {
    nixpkgs.url = "github:NixOS/nixpkgs/nixos-25.05";
    nixpkgs-unstable.url = "github:nixos/nixpkgs/nixos-unstable";

    lix-module.url = "https://git.lix.systems/lix-project/nixos-module/archive/2.93.1.tar.gz";
    lix-module.inputs.nixpkgs.follows = "nixpkgs";

    disko.url = "github:nix-community/disko/latest";
    disko.inputs.nixpkgs.follows = "nixpkgs";

    # Encrypted home: https://github.com/nix-community/home-manager/pull/6981
    home-manager.url = "github:nix-community/home-manager/release-25.05";
    home-manager.inputs.nixpkgs.follows = "nixpkgs";

    sops-nix.url = "github:Mic92/sops-nix";
    sops-nix.inputs.nixpkgs.follows = "nixpkgs";

    # Extras
    waveforms.url = "github:liff/waveforms-flake";
    waveforms.inputs.nixpkgs.follows = "nixpkgs";
  };

  outputs = {
    self,
    nixpkgs,
    nixpkgs-unstable, 
    home-manager,
    sops-nix,
    disko,
    waveforms,
    lix-module
  }@inputs: let
    system = "x86_64-linux";

    pkgs = import nixpkgs {
      inherit system;
      config.allowUnfree = true;
    };

    pkgs-unstable = import nixpkgs-unstable {
      inherit system;
      config.allowUnfree = true;
    };
  in {
    ############################################################################
    ############################################################################
    ############################################################################
    # Home Manager Configurations

    homeManagerModules = {
      "lauren_lagarde" = [
        {
          home.username = "lauren_lagarde";
          home.homeDirectory = "/home/lauren_lagarde";

          nixpkgs.config.allowUnfree = true;
          home.stateVersion = pkgs.lib.mkDefault "25.05";
        }

        ./home-manager/base.nix
      ];

      "lauren_lagarde@tui.mlaga97.space" = self.homeManagerModules."lauren_lagarde" ++ [
        ./dotspace/home.nix
        ./users/lauren_lagarde/home.nix
      ];

      "lauren_lagarde@gui.mlaga97.space" = self.homeManagerModules."lauren_lagarde@tui.mlaga97.space" ++ [
        ./home-manager/i3.nix
      ];

      "lauren_lagarde@personal.mlaga97.space" = self.homeManagerModules."lauren_lagarde@gui.mlaga97.space" ++ [
        ./secrets/mlaga97-gui.nix
      ];
    };

    homeConfigurations = {
      "lauren_lagarde" = home-manager.lib.homeManagerConfiguration {
        inherit pkgs;
        extraSpecialArgs = { inherit self inputs pkgs-unstable; };
        modules = self.homeManagerModules."lauren_lagarde";
      };

      "lauren_lagarde@ll-latitude-e5591" = home-manager.lib.homeManagerConfiguration {
        inherit pkgs;
        extraSpecialArgs = { inherit self inputs pkgs-unstable; };
        modules = self.homeManagerModules."lauren_lagarde@personal.mlaga97.space" ++ [
          ./systems/ll-latitude-e5591/home.nix
        ];
      };
    };

    ############################################################################
    ############################################################################
    ############################################################################
    # NixOS System Configurations

    nixosConfigurations = {
      bastion = nixpkgs.lib.nixosSystem {
        system = "x86_64-linux";
        specialArgs = { inherit self inputs pkgs-unstable; };
        modules = [ ./systems/bastion/configuration.nix ];
      };

      blockhouse = nixpkgs.lib.nixosSystem {
        system = "x86_64-linux";
        specialArgs = { inherit self inputs pkgs-unstable; };
        modules = [ ./systems/blockhouse/configuration.nix ];
      };

      fortress = nixpkgs.lib.nixosSystem {
        system = "x86_64-linux";
        specialArgs = { inherit self inputs pkgs-unstable; };
        modules = [ ./systems/fortress/configuration.nix ];
      };

      living-room = nixpkgs.lib.nixosSystem {
        system = "x86_64-linux";
        specialArgs = { inherit self inputs pkgs-unstable; };
        modules = [ ./systems/living-room/configuration.nix ];
      };

      ll-latitude-e5591 = nixpkgs.lib.nixosSystem {
        system = "x86_64-linux";
        specialArgs = { inherit inputs pkgs-unstable; };
        modules = [ ./systems/ll-latitude-e5591/configuration.nix ];
      };

      ll-nixos-live = nixpkgs.lib.nixosSystem {
        system = "x86_64-linux";
        specialArgs = { inherit self inputs pkgs-unstable; };
        modules = [ ./systems/ll-nixos-live/configuration.nix ];
      };

      outpost = nixpkgs.lib.nixosSystem {
        system = "aarch64-linux";
        specialArgs = { inherit self inputs pkgs-unstable; };
        modules = [ ./systems/outpost/configuration.nix ];
      };

      redoubt = nixpkgs.lib.nixosSystem {
        system = "aarch64-linux";
        specialArgs = { inherit self inputs pkgs-unstable; };
        modules = [ ./systems/redoubt/configuration.nix ];
      };

      stronghold = nixpkgs.lib.nixosSystem {
        system = "x86_64-linux";
        specialArgs = { inherit self inputs pkgs-unstable; };
        modules = [ ./systems/stronghold/configuration.nix ];
      };
    };
  };
}