flake.nix

{
  inputs = {
    nixpkgs.url = "github:NixOS/nixpkgs/nixos-23.11";
    systems.url = "github:nix-systems/default";
    devenv.url = "github:cachix/devenv";

    android-nixpkgs = {
      url = "github:tadfisher/android-nixpkgs";
      inputs.nixpkgs.follows = "nixpkgs";
    };
    flutter-nix = {
      url = "github:maximoffua/flutter.nix";
      inputs.nixpkgs.follows = "nixpkgs";
    };
  };

  nixConfig = {
    extra-trusted-public-keys = "devenv.cachix.org-1:w1cLUi8dv3hnoSPGAuibQv+f9TZLr6cv/Hm9XgU50cw=";
    extra-substituters = "https://devenv.cachix.org";
  };

  outputs = { self, nixpkgs, devenv, systems, ... } @ inputs:
    let
      forEachSystem = nixpkgs.lib.genAttrs (import systems);
    in
    {
      packages = forEachSystem (system: {
        devenv-up = self.devShells.${system}.default.config.procfileScript;
      });

      devShells = forEachSystem
        (system:
          let
            pkgs = nixpkgs.legacyPackages.${system};
          in
          {
            default =
              let
                inherit (inputs) flutter-nix android-nixpkgs;
                flutter-sdk = flutter-nix.packages.${system};
                sdk = (import android-nixpkgs { }).sdk (sdkPkgs:
                  with sdkPkgs; [
                    build-tools-30-0-3
                    build-tools-34-0-0
                    cmdline-tools-latest
                    emulator
                    platform-tools
                    platforms-android-34
                    platforms-android-33
                    platforms-android-31
                    platforms-android-28
                    system-images-android-34-google-apis-playstore-x86-64
                  ]);
              in
              devenv.lib.mkShell {
                inherit inputs pkgs;
                modules = [
                  ({ pkgs, config, ... }:
                    {
                      # https://devenv.sh/basics/
                      # dotenv.enable = true;
                      env.ANDROID_AVD_HOME = "${config.env.DEVENV_ROOT}/.android/avd";
                      env.ANDROID_SDK_ROOT = "${sdk}/share/android-sdk";
                      env.ANDROID_HOME = config.env.ANDROID_SDK_ROOT;
                      env.CHROME_EXECUTABLE = "chromium";
                      env.FLUTTER_SDK = "${pkgs.flutter}";
                      env.GRADLE_OPTS = "-Dorg.gradle.project.android.aapt2FromMavenOverride=${sdk}/share/android-sdk/build-tools/34.0.0/aapt2";

                      # https://devenv.sh/packages/
                      packages = [
                        flutter-sdk.flutter
                        pkgs.git
                        pkgs.lazygit
                        pkgs.chromium
                        pkgs.cmake
                      ];

                      # https://devenv.sh/scripts/
                      # Create the initial AVD that's needed by the emulator
                      scripts.create-avd.exec = "avdmanager create avd --force --name phone --package 'system-images;android-34;google_apis_playstore;x86_64'";

                      # https://devenv.sh/processes/
                      # These processes will all run whenever we run `devenv run`
                      processes.emulator.exec = "emulator -avd phone -skin 720x1280";
                      processes.generate.exec = "dart run build_runner watch || true";
                      # processes.grovero-app.exec = "flutter run lib/main.dart";

                      enterShell = ''
                        mkdir -p $ANDROID_AVD_HOME
                        export PATH="${sdk}/bin:$PATH"
                        export FLUTTER_GRADLE_PLUGIN_BUILDDIR="''${XDG_CACHE_HOME:-$HOME/.cache}/flutter/gradle-plugin";
                      '';

                      # https://devenv.sh/languages/
                      languages.dart = {
                        enable = true;
                        package = flutter-sdk.dart;
                      };
                      languages.java = {
                        enable = true;
                        gradle.enable = false;
                        jdk.package = pkgs.jdk;
                      };

                      # See full reference at https://devenv.sh/reference/options/
                    })
                ];
              };
          });
    };
}