# Example NixOS Configuration using m3ta-nixpkgs
# This file demonstrates how to integrate m3ta-nixpkgs into your NixOS system
{
  description = "Example NixOS configuration with m3ta-nixpkgs";

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

    # Add m3ta-nixpkgs as an input
    m3ta-nixpkgs = {
      url = "git+https://code.m3ta.dev/m3tam3re/nixpkgs";
      # Or use a local path during development:
      # url = "path:/home/user/projects/m3ta-nixpkgs";
      inputs.nixpkgs.follows = "nixpkgs";
    };

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

  outputs = {
    self,
    nixpkgs,
    m3ta-nixpkgs,
    home-manager,
    ...
  } @ inputs: {
    nixosConfigurations = {
      # Replace 'hostname' with your actual hostname
      hostname = nixpkgs.lib.nixosSystem {
        system = "x86_64-linux";

        specialArgs = {inherit inputs;};

        modules = [
          # Your hardware configuration
          ./hardware-configuration.nix

          # Import m3ta's NixOS modules (if any are defined)
          m3ta-nixpkgs.nixosModules.default

          # Main configuration
          ({pkgs, ...}: {
            # ============================================
            # METHOD 1: Using Overlays (Recommended)
            # ============================================
            # This makes custom packages available as if they were in nixpkgs
            nixpkgs.overlays = [
              m3ta-nixpkgs.overlays.default
              # Or use individual overlays for more control:
              # m3ta-nixpkgs.overlays.additions
              # m3ta-nixpkgs.overlays.modifications
            ];

            # Now you can use packages normally
            environment.systemPackages = with pkgs; [
              # Custom packages from m3ta-nixpkgs
              code2prompt
              hyprpaper-random
              msty-studio
              pomodoro-timer
              tuxedo-backlight
              zellij-ps

              # Regular nixpkgs packages
              vim
              git
              htop
            ];

            # ============================================
            # METHOD 2: Direct Package Reference
            # ============================================
            # Use this if you don't want to use overlays
            # environment.systemPackages = [
            #   inputs.m3ta-nixpkgs.packages.${pkgs.system}.code2prompt
            #   inputs.m3ta-nixpkgs.packages.${pkgs.system}.zellij-ps
            # ];

            # ============================================
            # Using Custom NixOS Modules
            # ============================================
            # If you've defined custom NixOS modules, configure them here
            # m3ta.myModule = {
            #   enable = true;
            #   # module-specific options
            # };

            # ============================================
            # System Configuration
            # ============================================
            system.stateVersion = "24.05";
            networking.hostName = "hostname";

            # Enable flakes
            nix.settings.experimental-features = ["nix-command" "flakes"];
          })

          # ============================================
          # Home Manager Integration
          # ============================================
          home-manager.nixosModules.home-manager
          {
            home-manager.useGlobalPkgs = true;
            home-manager.useUserPackages = true;
            home-manager.users.m3tam3re = {pkgs, ...}: {
              # Import m3ta's Home Manager modules
              imports = [
                m3ta-nixpkgs.homeManagerModules.default
                # Or import specific modules:
                # m3ta-nixpkgs.homeManagerModules.zellij-ps
              ];

              # Home Manager packages with overlay
              home.packages = with pkgs; [
                launch-webapp
                # Other packages...
              ];

              # Configure custom Home Manager modules
              # programs.myProgram = {
              #   enable = true;
              #   # options...
              # };

              home.stateVersion = "24.05";
            };
          }
        ];
      };

      # ============================================
      # Alternative: Minimal Configuration
      # ============================================
      minimal = nixpkgs.lib.nixosSystem {
        system = "x86_64-linux";
        modules = [
          ({pkgs, ...}: {
            nixpkgs.overlays = [m3ta-nixpkgs.overlays.default];

            environment.systemPackages = with pkgs; [
              code2prompt
            ];

            system.stateVersion = "24.05";
          })
        ];
      };
    };
  };
}