flake.nix

{
  description = "Donut Browser Development Environment";

  inputs = {
    nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
    flake-utils.url = "github:numtide/flake-utils";
    rust-overlay = {
      url = "github:oxalica/rust-overlay";
      inputs.nixpkgs.follows = "nixpkgs";
    };
  };

  outputs = { self, nixpkgs, flake-utils, rust-overlay, ... }:
    flake-utils.lib.eachDefaultSystem (system:
      let
        overlays = [ (import rust-overlay) ];
        pkgs = import nixpkgs {
          inherit system overlays;
        };

        # Rust toolchain
        rustToolchain = pkgs.rust-bin.stable.latest.default.override {
          extensions = [ "rust-src" "rust-analyzer" "clippy" "rustfmt" ];
        };

        # System dependencies for Tauri on Linux
        libraries = with pkgs; [
          webkitgtk_4_1
          gtk3
          cairo
          gdk-pixbuf
          glib
          dbus
          librsvg
          libsoup_3
        ];

        packages = with pkgs; [
          rustToolchain
          nodejs_22
          pnpm
          pkg-config
          cargo-tauri
          openssl
          # App specific tools
          biome
        ] ++ libraries;

      in
      {
        devShells.default = pkgs.mkShell {
          buildInputs = packages;

          shellHook = ''
            export LD_LIBRARY_PATH=${pkgs.lib.makeLibraryPath libraries}:$LD_LIBRARY_PATH
            export XDG_DATA_DIRS=${pkgs.gsettings-desktop-schemas}/share/gsettings-schemas/${pkgs.gsettings-desktop-schemas.name}:${pkgs.gtk3}/share/gsettings-schemas/${pkgs.gtk3.name}:$XDG_DATA_DIRS
            
            echo "🍩 Donut Browser Dev Environment Loaded!"
            echo "Node: $(node --version)"
            echo "Rust: $(rustc --version)"
            echo "Tauri CLI: $(cargo-tauri --version)"
          '';
        };
      }
    );
}