add rust to GUI launcher

babylonia_terminal_launcher/.gitignore

@@ -46,4 +46,11 @@ app.*.map.json
 /linux
 
 # Misc
-/test
+/test
+
+# Rust related
+.cargo/
+target/
+
+# Generated messages
+*/**/messages/

babylonia_terminal_launcher/Cargo.toml

@@ -0,0 +1,8 @@
+# This file is used for telling Rust-related tools
+# where various Rust crates are.
+# This also unifies `./target` output folder and
+# various Rust configurations.
+
+[workspace]
+members = ["./native/*"]
+resolver = "2"

babylonia_terminal_launcher/README.md

@@ -0,0 +1,44 @@
+
+
+## Using Rust Inside Flutter
+
+This project leverages Flutter for GUI and Rust for the backend logic,
+utilizing the capabilities of the
+[Rinf](https://pub.dev/packages/rinf) framework.
+
+To run and build this app, you need to have
+[Flutter SDK](https://docs.flutter.dev/get-started/install)
+and [Rust toolchain](https://www.rust-lang.org/tools/install)
+installed on your system.
+You can check that your system is ready with the commands below.
+Note that all the Flutter subcomponents should be installed.
+
+```bash
+rustc --version
+flutter doctor
+```
+
+You also need to have the CLI tool for Rinf ready.
+
+```bash
+cargo install rinf
+```
+
+Messages sent between Dart and Rust are implemented using Protobuf.
+If you have newly cloned the project repository
+or made changes to the `.proto` files in the `./messages` directory,
+run the following command:
+
+```bash
+rinf message
+```
+
+Now you can run and build this app just like any other Flutter projects.
+
+```bash
+flutter run
+```
+
+For detailed instructions on writing Rust and Flutter together,
+please refer to Rinf's [documentation](https://rinf.cunarist.com).
+

babylonia_terminal_launcher/lib/app.dart

@@ -4,15 +4,22 @@ import 'package:yaru/yaru.dart';
 
 import './screens/screens.dart';
 
-import './providers/settings_provider.dart';
+import './providers/providers.dart';
 
 class BabyloniaLauncher extends StatelessWidget {
   const BabyloniaLauncher({super.key});
 
   @override
   Widget build(BuildContext context) {
-    return ChangeNotifierProvider(
+    return MultiProvider(
-      create: (context) => SettingsProvider(),
+      providers: [
+        ChangeNotifierProvider(
+          create: (context) => SettingsProvider(),
+        ),
+        ChangeNotifierProvider(
+          create: (context) => GameStateProvider(),
+        ),
+      ],
       child: YaruTheme(
         builder: (context, yaru, child) => MaterialApp(
           title: "Babylonia Terminal",

babylonia_terminal_launcher/lib/main.dart

@@ -3,8 +3,10 @@ import 'package:flutter/widgets.dart';
 import 'package:media_kit/media_kit.dart';
 
 import './app.dart';
+import './messages/generated.dart';
 
-void main() {
+void main() async {
+  await initializeRust();
   WidgetsFlutterBinding.ensureInitialized();
   MediaKit.ensureInitialized();
   runApp(const BabyloniaLauncher());

babylonia_terminal_launcher/lib/providers/game_state_provider.dart

@@ -0,0 +1,21 @@
+import 'package:babylonia_terminal_launcher/messages/game_state.pb.dart';
+import 'package:flutter/material.dart';
+
+class GameStateProvider with ChangeNotifier {
+  States? _gameState = null;
+  bool isUpdating = false;
+
+  Future updateGameState() async {
+    if (!isUpdating) {
+      isUpdating = true;
+      AskGameState().sendSignalToRust();
+
+      final stream = GameState.rustSignalStream;
+      await for (final rustSignal in stream) {
+        _gameState = rustSignal.message.state;
+        break;
+      }
+      isUpdating = false;
+    }
+  }
+}

babylonia_terminal_launcher/lib/providers/providers.dart

@@ -0,0 +1,2 @@
+export './settings_provider.dart';
+export './game_state_provider.dart';

babylonia_terminal_launcher/lib/screens/home_screen.dart

@@ -2,7 +2,7 @@ import 'package:flutter/material.dart';
 import 'package:provider/provider.dart';
 
 import './../widgets/background.dart';
-import './../providers/settings_provider.dart';
+import './../providers/providers.dart';
 import './../models/settings.dart';
 
 class HomeScreen extends StatelessWidget {
@@ -62,7 +62,11 @@ class HomeScreen extends StatelessWidget {
                           style: ElevatedButton.styleFrom(
                             backgroundColor: Colors.blue[500],
                           ),
-                          onPressed: () {},
+                          onPressed: () async {
+                            Provider.of<GameStateProvider>(context,
+                                    listen: false)
+                                .updateGameState();
+                          },
                           child: const Center(
                             child: Text("Download"),
                           ),

babylonia_terminal_launcher/messages/game_state.proto

@@ -0,0 +1,21 @@
+syntax = "proto3";
+package game_state;
+
+enum States {
+    ProtonNotInstalled = 0;
+    DXVKNotInstalled = 1;
+    FontNotInstalled = 2;
+    DependecieNotInstalled = 3;
+    GameNotInstalled = 4;
+    GameNeedUpdate = 5;
+    GameNotPatched = 6;
+    GameInstalled = 7;
+}
+
+// [RINF:RUST-SIGNAL]
+message GameState {
+    States state = 1;
+}
+
+// [RINF:DART-SIGNAL]
+message AskGameState {}

babylonia_terminal_launcher/native/hub/Cargo.toml

@@ -0,0 +1,19 @@
+[package]
+# Do not change the name of this crate.
+name = "hub"
+version = "0.1.0"
+edition = "2021"
+
+[lib]
+# `lib` is required for non-library targets,
+# such as tests and benchmarks.
+# `cdylib` is for Linux, Android, Windows, and web.
+# `staticlib` is for iOS and macOS.
+crate-type = ["lib", "cdylib", "staticlib"]
+
+[dependencies]
+rinf = "6.9.0"
+prost = "0.12.3"
+wasm-bindgen = "0.2.91"
+tokio_with_wasm = "0.4.3"
+babylonia-terminal-sdk = { path = "./../../../babylonia-terminal-sdk" }

babylonia_terminal_launcher/native/hub/src/game_state.rs

@@ -0,0 +1,31 @@
+use babylonia_terminal_sdk::game_state::GameState;
+
+use crate::messages::game_state::{AskGameState, GameState as GameStateMessage, States};
+
+impl GameStateMessage {
+    fn from_sdk_state_to_msg_state(state: GameState) -> Self {
+        let game_state = match state {
+            GameState::ProtonNotInstalled => States::ProtonNotInstalled,
+            GameState::DXVKNotInstalled => States::DxvkNotInstalled,
+            GameState::FontNotInstalled => States::FontNotInstalled,
+            GameState::DependecieNotInstalled => States::DependecieNotInstalled,
+            GameState::GameNotInstalled => States::GameNotInstalled,
+            GameState::GameNeedUpdate => States::GameNeedUpdate,
+            GameState::GameNotPatched => States::GameNotPatched,
+            GameState::GameInstalled => States::GameInstalled,
+        };
+        GameStateMessage {
+            state: game_state.into(),
+        }
+    }
+}
+
+pub async fn get_game_state() {
+    let mut receiver = AskGameState::get_dart_signal_receiver();
+    while let Some(_) = receiver.recv().await {
+        let result_state = GameState::get_current_state().await;
+        if let Ok(state) = result_state {
+            GameStateMessage::from_sdk_state_to_msg_state(state).send_signal_to_dart();
+        }
+    }
+}

babylonia_terminal_launcher/native/hub/src/lib.rs

@@ -0,0 +1,25 @@
+//! This `hub` crate is the
+//! entry point of the Rust logic.
+
+// This `tokio` will be used by Rinf.
+// You can replace it with the original `tokio`
+// if you're not targeting the web.
+use tokio_with_wasm::tokio;
+
+mod game_state;
+mod messages;
+
+rinf::write_interface!();
+
+// Always use non-blocking async functions
+// such as `tokio::fs::File::open`.
+// If you really need to use blocking code,
+// use `tokio::task::spawn_blocking`.
+async fn main() {
+    // Repeat `tokio::spawn` anywhere in your code
+    // if more concurrent tasks are needed.
+    //tokio::spawn(sample_functions::tell_numbers());
+    //tokio::spawn(sample_functions::stream_fractal());
+    //tokio::spawn(sample_functions::run_debug_tests());
+    tokio::spawn(game_state::get_game_state());
+}

babylonia_terminal_launcher/pubspec.yaml

@@ -44,6 +44,8 @@ dependencies:
   media_kit_libs_video: any
   media_kit_native_event_loop: any
   provider: ^6.1.2
+  rinf: ^6.9.0
+  protobuf: ^3.1.0
 
 dependency_overrides:
   media_kit: