Bundle Graphite using Tauri (#873)

* Setup tauri component for graphite editor

Integrate graphite into tauri app

Split interpreted-executor out of graph-craft

* Add gpu execution node

* General Cleanup

frontend/src-tauri/src/main.rs

@@ -0,0 +1,125 @@
+#![cfg_attr(all(not(debug_assertions), target_os = "windows"), windows_subsystem = "windows")]
+
+use std::sync::Arc;
+
+use axum::body::StreamBody;
+use axum::extract::Path;
+use axum::http;
+use axum::response::IntoResponse;
+use axum::{routing::get, Router};
+use fern::colors::{Color, ColoredLevelConfig};
+use graphite_editor::application::Editor;
+use graphite_editor::messages::frontend::utility_types::FrontendImageData;
+use graphite_editor::messages::prelude::*;
+use http::{Response, StatusCode};
+use std::collections::HashMap;
+use std::sync::Mutex;
+use tauri::Manager;
+
+static IMAGES: Mutex<Option<HashMap<String, FrontendImageData>>> = Mutex::new(None);
+static EDITOR: Mutex<Option<Editor>> = Mutex::new(None);
+
+async fn respond_to(id: Path<String>) -> impl IntoResponse {
+	let builder = Response::builder().header("Access-Control-Allow-Origin", "*").status(StatusCode::OK);
+
+	let guard = IMAGES.lock().unwrap();
+	let images = guard;
+	let image = images.as_ref().unwrap().get(&id.0).unwrap();
+
+	println!("image: {:#?}", image.path);
+	let result: Result<Vec<u8>, &str> = Ok((*image.image_data).clone());
+	let stream = futures::stream::once(async move { result });
+	builder.body(StreamBody::new(stream)).unwrap()
+}
+
+fn main() {
+	println!("Starting server...");
+
+	let colors = ColoredLevelConfig::new().debug(Color::Magenta).info(Color::Green).error(Color::Red);
+
+	fern::Dispatch::new()
+		.chain(std::io::stdout())
+		.level(log::LevelFilter::Trace)
+		.format(move |out, message, record| {
+			out.finish(format_args!(
+				"[{}]{} {}",
+				// This will color the log level only, not the whole line. Just a touch.
+				colors.color(record.level()),
+				chrono::Utc::now().format("[%Y-%m-%d %H:%M:%S]"),
+				message
+			))
+		})
+		.apply()
+		.unwrap();
+
+	*(IMAGES.lock().unwrap()) = Some(HashMap::new());
+	graphite_editor::application::set_uuid_seed(0);
+	*(EDITOR.lock().unwrap()) = Some(Editor::new());
+	let app = Router::new().route("/", get(|| async { "Hello, World!" })).route("/image/:id", get(respond_to));
+
+	// run it with hyper on localhost:3000
+	tauri::async_runtime::spawn(async {
+		axum::Server::bind(&"0.0.0.0:3001".parse().unwrap()).serve(app.into_make_service()).await.unwrap();
+	});
+
+	tauri::Builder::default()
+		.invoke_handler(tauri::generate_handler![set_random_seed, handle_message])
+		.setup(|app| {
+			app.get_window("main").unwrap().open_devtools();
+			Ok(())
+		})
+		.run(tauri::generate_context!())
+		.expect("error while running tauri application");
+}
+#[tauri::command]
+fn set_random_seed(seed: f64) {
+	let seed = seed as u64;
+	graphite_editor::application::set_uuid_seed(seed);
+}
+
+#[tauri::command]
+fn handle_message(message: String) -> String {
+	let Ok(message) = ron::from_str::<graphite_editor::messages::message::Message>(&message) else {
+		panic!("Error parsing message: {}", message)
+	};
+	let mut guard = EDITOR.lock().unwrap();
+	let editor = (*guard).as_mut().unwrap();
+	let responses = editor.handle_message(message);
+
+	// Sends a FrontendMessage to JavaScript
+	fn send_frontend_message_to_js(message: FrontendMessage) -> FrontendMessage {
+		// Special case for update image data to avoid serialization times.
+		if let FrontendMessage::UpdateImageData { document_id, image_data } = message {
+			let mut guard = IMAGES.lock().unwrap();
+			let images = (*guard).as_mut().unwrap();
+			let mut stub_data = Vec::with_capacity(image_data.len());
+			for image in image_data {
+				let path = image.path.clone();
+				let mime = image.mime.clone();
+				images.insert(format!("{:?}_{}", &image.path, document_id), image);
+				stub_data.push(FrontendImageData {
+					path,
+					mime,
+					image_data: Arc::new(Vec::new()),
+				});
+			}
+			FrontendMessage::UpdateImageData { document_id, image_data: stub_data }
+		} else {
+			message
+		}
+	}
+
+	for response in &responses {
+		let serialized = ron::to_string(&send_frontend_message_to_js(response.clone())).unwrap();
+		if let Err(error) = ron::from_str::<FrontendMessage>(&serialized) {
+			log::error!("Error deserializing message: {}", error);
+			log::debug!("{:#?}", response);
+			log::debug!("{}", serialized);
+		}
+	}
+
+	// Process any `FrontendMessage` responses resulting from the backend processing the dispatched message
+	let result: Vec<_> = responses.into_iter().map(send_frontend_message_to_js).collect();
+
+	ron::to_string(&result).expect("Failed to serialize FrontendMessage")
+}