Initial commit

src-tauri/src/lib.rs

@@ -0,0 +1,90 @@
+use rusqlite::{Connection, ToSql, types::ToSqlOutput};
+use rand::prelude::*;
+use tokio::sync::Mutex;
+use tauri::{Manager, State};
+use chrono::offset::Utc;
+
+struct AppState {
+	db: Connection,
+	acc: i64,
+}
+
+#[derive(Clone, Copy)]
+enum Store {
+	Aldi,
+	Rewe,
+}
+
+impl TryFrom<&str> for Store {
+	type Error = ();
+
+	fn try_from(s: &str) -> Result<Self, Self::Error> {
+		match s {
+			"aldi" => Ok(Store::Aldi),
+			"rewe" => Ok(Store::Rewe),
+			_ => Err(()),
+		}
+	}
+}
+
+impl ToSql for Store {
+	fn to_sql(&self) -> rusqlite::Result<ToSqlOutput<'_>> {
+		match self {
+			Store::Aldi => 0.to_sql(),
+			Store::Rewe => 1.to_sql(),
+		}
+	}
+}
+
+// Learn more about Tauri commands at https://tauri.app/develop/calling-rust/
+#[tauri::command]
+async fn swap(store: &str, state: State<'_, Mutex<AppState>>) -> Result<(), ()> {
+	let state = state.lock().await;
+	let mut rng = rand::rng();
+	let store: Store = store.try_into()?;
+	state.db.execute(
+		"INSERT INTO swap VALUES (?1, ?2, ?3, ?4, ?5)",
+		(
+			rng.random::<i64>(),
+			store,
+			state.acc,
+			Utc::now().timestamp(),
+			false,
+		),
+	).map_err(|_| ())?;
+	Ok(())
+}
+
+#[tauri::command]
+async fn count(state: State<'_, Mutex<AppState>>) -> Result<String, ()> {
+	let state = state.lock().await;
+	let mut stmt = state.db.prepare("SELECT COUNT(*) FROM swap").unwrap();
+	let mut rows = stmt.query([]).unwrap();
+	let row = rows.next().unwrap().unwrap();
+	let cnt: u64 = row.get_unwrap(0);
+	Ok(cnt.to_string())
+}
+
+#[cfg_attr(mobile, tauri::mobile_entry_point)]
+pub fn run() {
+	let mut rng = rand::rng();
+	let db = Connection::open_in_memory().expect("Failed to create DB.");
+	let acc = rng.random::<i64>();
+	db.execute(
+		"CREATE TABLE swap (
+			rand INTEGER,
+			store INTEGER,
+			account INTEGER,
+			time INTEGER,
+			cancellation BOOL
+		)",
+		(),
+	).unwrap();
+	let state = AppState { db, acc };
+	tauri::Builder::default()
+		.setup(|app| {app.manage(Mutex::new(state)); Ok(())})
+		.plugin(tauri_plugin_opener::init())
+		.invoke_handler(tauri::generate_handler![swap, count])
+		.run(tauri::generate_context!())
+		.expect("error while running tauri application");
+}

src-tauri/src/main.rs

@@ -0,0 +1,6 @@
+// Prevents additional console window on Windows in release, DO NOT REMOVE!!
+#![cfg_attr(not(debug_assertions), windows_subsystem = "windows")]
+
+fn main() {
+    bkbh_lib::run()
+}