mv src-tauri/* .

src/lib.rs

@@ -0,0 +1,201 @@
+use chrono::offset::Utc;
+use rusqlite::{types::ToSqlOutput, ToSql};
+use tauri::{Manager, State};
+use tauri_plugin_fs::FsExt;
+use tokio::sync::Mutex;
+use std::collections::HashMap;
+
+mod app_state;
+mod data_door;
+
+use app_state::AppState;
+
+#[derive(Clone, Copy, Debug)]
+enum Store {
+	Aldi,
+	Edeka,
+	Dm,
+	Lidl,
+	Rewe,
+	Tegut,
+}
+
+#[derive(Clone, Copy, Debug)]
+enum Account {
+	Sumpf,
+	Heinersyndikat,
+}
+
+struct Inventory {
+	acc: Account,
+	cash: i64,
+	vouchers: Vec<VoucherInventory>,
+}
+
+#[derive(Debug)]
+struct VoucherInventory {
+	store: Store,
+	count: i64,
+}
+
+impl TryFrom<&str> for Store {
+	type Error = ();
+
+	fn try_from(s: &str) -> Result<Self, Self::Error> {
+		match s {
+			"aldi" => Ok(Store::Aldi),
+			"edeka" => Ok(Store::Edeka),
+			"dm" => Ok(Store::Dm),
+			"lidl" => Ok(Store::Lidl),
+			"rewe" => Ok(Store::Rewe),
+			"tegut" => Ok(Store::Tegut),
+			_ => Err(()),
+		}
+	}
+}
+
+impl TryFrom<&str> for Account {
+	type Error = ();
+
+	fn try_from(s: &str) -> Result<Self, Self::Error> {
+		match s {
+			"sumpf" => Ok(Account::Sumpf),
+			"hs" => Ok(Account::Heinersyndikat),
+			_ => Err(()),
+		}
+	}
+}
+
+impl ToSql for Store {
+	fn to_sql(&self) -> rusqlite::Result<ToSqlOutput<'_>> {
+		match self {
+			Store::Aldi => 0.to_sql(),
+			Store::Edeka => 1.to_sql(),
+			Store::Dm => 2.to_sql(),
+			Store::Lidl => 3.to_sql(),
+			Store::Rewe => 4.to_sql(),
+			Store::Tegut => 5.to_sql(),
+		}
+	}
+}
+
+impl ToSql for Account {
+	fn to_sql(&self) -> rusqlite::Result<ToSqlOutput<'_>> {
+		match self {
+			Account::Sumpf => 0.to_sql(),
+			Account::Heinersyndikat => 1.to_sql(),
+		}
+	}
+}
+
+fn parse_inventory(data: HashMap<String, String>) -> Result<Inventory, ()> {
+	let a = data.get("cafe-inventory-acc").ok_or(())?;
+	let acc: Account = Account::try_from(a.as_ref())?;
+	let mut vouchers = Vec::new();
+	for s in ["aldi", "dm", "lidl", "rewe", "tegut"] {
+		let Ok(store) = s.try_into() else {
+			println!("Did not find '{}' in inventory data.", s);
+			continue;
+		};
+		match data.get(&format!("cafe-inventory-{}", s)) {
+			None => (),
+			Some(c) => {
+				let c = if c == "" {"0"} else {c};
+				let Ok(count) = c.parse() else {
+					println!("Invalid count '{}' for '{}' in inventory data.", c, s);
+					continue;
+				};
+				let v = VoucherInventory { store, count };
+				vouchers.push(v);
+			},
+		}
+	}
+	unimplemented!()
+}
+
+#[tauri::command]
+async fn inventory(
+	data: HashMap<String, String>,
+	state: State<'_, Mutex<AppState>>,
+) -> Result<(), ()> {
+	let now = Utc::now().timestamp();
+	let state = state.lock().await;
+	let inv = parse_inventory(data)?;
+	for v in inv.vouchers {
+		state.db.execute(
+			"INSERT INTO voucher_inventory VALUES ()",
+			(
+				inv.acc,
+				v.store,
+				v.count,
+				now,
+			),
+		)
+		.map_err(|e| println!("{:?}", e))?;
+	};
+	Ok(())
+}
+
+#[tauri::command]
+async fn swap(
+	store: &str,
+	acc: i64,
+	state: State<'_, Mutex<AppState>>,
+) -> Result<(), ()> {
+	let state = state.lock().await;
+	let store: Store = store.try_into()?;
+	state.db.execute(
+		"INSERT INTO swap VALUES (?1, ?2, ?3, ?4, ?5)",
+		(
+			store,
+			acc,
+			i64::from_ne_bytes(state.id.to_ne_bytes()),
+			Utc::now().timestamp(),
+			false,
+		),
+	)
+	.map_err(|e| println!("{:?}", e))?;
+	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")
+			.map_err(|e| println!("{:?}", e))?;
+	let mut rows = stmt.query([]).map_err(|e| println!("{:?}", e))?;
+	let row = rows.next().map_err(|e| println!("{:?}", e))?;
+	let row = match row {
+		Some(r) => Ok(r),
+		None => {
+			println!("No rows");
+			Err(())
+		}
+	}?;
+	let cnt: u64 = row.get(0).map_err(|e| println!("{:?}", e))?;
+	Ok(cnt.to_string())
+}
+
+#[cfg_attr(mobile, tauri::mobile_entry_point)]
+pub fn run() {
+	let state = AppState::new();
+	tauri::Builder::default()
+		.plugin(tauri_plugin_fs::init())
+		.setup(|app| {
+			app.manage(Mutex::new(state));
+			let scope = app.fs_scope();
+			let path = app.path();
+			scope.allow_directory(path.temp_dir()?, false)?;
+			Ok(())
+		})
+		.invoke_handler(tauri::generate_handler![
+			swap,
+			count,
+			inventory,
+			data_door::pull_data,
+			data_door::push_data,
+		])
+		.run(tauri::generate_context!())
+		.expect("error while running tauri application");
+}