feat: arbitrary sources, background worker

implemented a reliable sqlite storage, a way to
save and load values, a native-only
background worker to fetch data and update values

Cargo.toml

@@ -13,20 +13,18 @@ path = "src/main.rs"
 crate-type = ["cdylib", "rlib"]
 
 [dependencies]
-dirs = "4"
 rand = "0.8"
 chrono = { version = "0.4", features = ["wasmbind"] }
 eframe = { version = "0.18", features = ["persistence"] }
 serde = { version = "1", features = ["derive"] }
 serde_json = "1"
-jq-rs = "0.4"
-rusqlite = { version = "0.27" }
-ehttp = "0.2.0"
-reqwest = { version = "0.11", features = ["json"] }
 
 # native only dependancies:
 [target.'cfg(not(target_arch = "wasm32"))'.dependencies]
-tokio = { version = "1", features = ["full"] } # TODO do we need full features?
+dirs = "4"
+rusqlite = { version = "0.27" }
+jq-rs = "0.4"
+ureq = { version = "2", features = ["json"] }
 
 # web only dependancies:
 [target.'cfg(target_arch = "wasm32")'.dependencies]

src/app/data/mod.rs

@@ -1,21 +1,29 @@
-pub mod source;
+// pub mod source;
 pub mod store;
 
-use std::sync::{Arc, Mutex};
+use std::path::PathBuf;
+use std::sync::{RwLock, Mutex, Arc};
 use std::num::ParseFloatError;
 use chrono::{DateTime, Utc};
 use eframe::egui::plot::{Values, Value};
 
+use self::store::SQLiteDataStore;
+
 #[derive(Debug)]
 pub enum FetchError {
-	ReqwestError(reqwest::Error),
+	UreqError(ureq::Error),
+	IoError(std::io::Error),
 	JqError(jq_rs::Error),
 	RusqliteError(rusqlite::Error),
 	ParseFloatError(ParseFloatError),
+	NoPanelWithThatIdError,
 }
 
-impl From::<reqwest::Error> for FetchError {
+impl From::<ureq::Error> for FetchError {
-	fn from(e: reqwest::Error) -> Self { FetchError::ReqwestError(e) }
+	fn from(e: ureq::Error) -> Self { FetchError::UreqError(e) }
+}
+impl From::<std::io::Error> for FetchError {
+	fn from(e: std::io::Error) -> Self { FetchError::IoError(e) }
 }
 impl From::<jq_rs::Error> for FetchError {
 	fn from(e: jq_rs::Error) -> Self { FetchError::JqError(e) }
@@ -27,16 +35,54 @@ impl From::<rusqlite::Error> for FetchError {
 	fn from(e: rusqlite::Error) -> Self { FetchError::RusqliteError(e) }
 }
 
+pub struct ApplicationState {
+	pub run: bool,
+	pub panels: RwLock<Vec<Panel>>,
+	pub storage: Mutex<SQLiteDataStore>,
+}
 
+impl ApplicationState {
+	pub fn new(path:PathBuf) -> Self {
+		let storage = SQLiteDataStore::new(path).unwrap();
+
+		let panels = storage.load_panels().unwrap();
+
+		return ApplicationState{
+			run: true,
+			panels: RwLock::new(panels),
+			storage: Mutex::new(storage),
+		};
+	}
+
+	pub fn add_panel(&self, name:&str) -> Result<(), FetchError> {
+		let panel = self.storage.lock().unwrap().new_panel(name, 100, 200, 280)?; // TODO make values customizable and useful
+		self.panels.write().unwrap().push(panel);
+		Ok(())
+	}
+
+	pub fn add_source(&self, panel_id:i32, name:&str, url:&str, query_x:&str, query_y:&str) -> Result<(), FetchError> {
+		let source = self.storage.lock().unwrap().new_source(panel_id, name, url, query_x, query_y)?;
+		let panels = self.panels.read().unwrap();
+		for panel in &*panels {
+			if panel.id == panel_id {
+				panel.sources.write().unwrap().push(source);
+				return Ok(());
+			}
+		}
+		Err(FetchError::NoPanelWithThatIdError)
+	}
+}
 
 pub struct Panel {
 	pub(crate) id: i32,
 	pub name: String,
 	pub view_scroll: bool,
 	pub view_size: i32,
+	pub timeserie: bool,
 	pub(crate) width: i32,
 	pub(crate) height: i32,
-	pub(crate) sources: Mutex<Vec<Source>>,
+	pub(crate) sources: RwLock<Vec<Source>>,
+
 }
 
 impl Panel {
@@ -47,29 +93,36 @@ pub struct Source {
 	pub name: String,
 	pub url: String,
 	pub interval: i32,
-	pub(crate) last_fetch: DateTime<Utc>,
+	pub(crate) last_fetch: RwLock<DateTime<Utc>>,
 	pub query_x: String,
 	// pub(crate) compiled_query_x: Arc<Mutex<jq_rs::JqProgram>>,
 	pub query_y: String,
 	// pub(crate) compiled_query_y: Arc<Mutex<jq_rs::JqProgram>>,
 	pub(crate) panel_id: i32,
-	pub(crate) data: Mutex<Vec<Value>>,
+	pub(crate) data: RwLock<Vec<Value>>,
 }
 
 impl Source {
 	pub fn valid(&self) -> bool {
-		return (Utc::now() - self.last_fetch).num_seconds() < self.interval as i64;
+		let last_fetch = self.last_fetch.read().unwrap();
+		return (Utc::now() - *last_fetch).num_seconds() < self.interval as i64;
 	}
 
 	pub fn values(&self) -> Values {
-		Values::from_values(self.data.lock().unwrap().clone())
+		Values::from_values(self.data.read().unwrap().clone())
 	}
 
-	pub async fn fetch(&self) -> Result<Value, FetchError> {
+}
-		let res = reqwest::get(&self.url).await?;
+
-		let body = res.text().await?;
+pub fn fetch(url:&str, query_x:&str, query_y:&str) -> Result<Value, FetchError> {
-		let x = jq_rs::compile(&self.query_x)?.run(&body)?.parse::<f64>()?;
+	let res = ureq::get(url).call()?;
-		let y = jq_rs::compile(&self.query_y)?.run(&body)?.parse::<f64>()?;
+	let body = res.into_string()?;
-		return Ok( Value { x, y } );
+	let x : f64;
+	if query_x.len() > 0 {
+		x = jq_rs::compile(query_x)?.run(&body)?.trim().parse::<f64>()?; // TODO precompile and guard with a mutex
+	} else {
+		x = Utc::now().timestamp() as f64;
 	}
+	let y = jq_rs::compile(query_y)?.run(&body)?.trim().parse::<f64>()?;
+	return Ok( Value { x, y } );
 }

src/app/data/store.rs

@@ -1,30 +1,30 @@
-use std::sync::{Arc, Mutex};
-use chrono::{DateTime, TimeZone, NaiveDateTime, Utc};
-use rusqlite::{Connection, params};
-use eframe::egui::plot::Value;
 use crate::app::data::{Panel, Source};
+use chrono::{DateTime, NaiveDateTime, TimeZone, Utc};
+use eframe::egui::plot::Value;
+use rusqlite::{params, Connection};
+use std::sync::{Arc, RwLock};
 
 use super::FetchError;
 
 pub trait DataStorage {
-	fn add_panel(&self, name:&str);
+	fn add_panel(&self, name: &str);
 }
 
 pub struct SQLiteDataStore {
 	conn: Connection,
-	pub(crate) panels: Mutex<Vec<Panel>>,
 }
 
 impl SQLiteDataStore {
 	pub fn new(path: std::path::PathBuf) -> Result<Self, rusqlite::Error> {
 		let conn = Connection::open(path)?;
-		
+
 		conn.execute(
 			"CREATE TABLE IF NOT EXISTS panels (
 				id INTEGER PRIMARY KEY,
 				name TEXT UNIQUE,
 				view_scroll BOOL,
 				view_size INT,
+				timeserie BOOL,
 				width INT,
 				height INT
 			);",
@@ -34,7 +34,7 @@ impl SQLiteDataStore {
 		conn.execute(
 			"CREATE TABLE IF NOT EXISTS sources (
 				id INTEGER PRIMARY KEY,
-				name TEXT UNIQUE,
+				name TEXT,
 				url TEXT,
 				interval INT,
 				query_x TEXT,
@@ -55,21 +55,21 @@ impl SQLiteDataStore {
 			[],
 		)?;
 
-		let mut store = SQLiteDataStore { 
+		Ok(SQLiteDataStore { conn })
-			conn,
-			panels: Mutex::new(Vec::new()),
-		};
-
-		store.load_panels()?;
-
-		return Ok(store);
 	}
 
-	fn load_values(&self, panel_id:i32, source_id:i32) -> rusqlite::Result<Vec<Value>> {
+	
-		let mut values : Vec<Value> = Vec::new();
+
-		let mut statement = self.conn.prepare("SELECT x, y FROM points WHERE panel_id = ? AND source_id = ?")?;
+	pub fn load_values(&self, panel_id: i32, source_id: i32) -> rusqlite::Result<Vec<Value>> {
+		let mut values: Vec<Value> = Vec::new();
+		let mut statement = self
+			.conn
+			.prepare("SELECT x, y FROM points WHERE panel_id = ? AND source_id = ?")?;
 		let values_iter = statement.query_map(params![panel_id, source_id], |row| {
-			Ok(Value{ x: row.get(0)?, y: row.get(1)? })
+			Ok(Value {
+				x: row.get(0)?,
+				y: row.get(1)?,
+			})
 		})?;
 
 		for value in values_iter {
@@ -81,35 +81,39 @@ impl SQLiteDataStore {
 		Ok(values)
 	}
 
-	fn put_value(&self, panel_id:i32, source_id:i32, v:Value) -> rusqlite::Result<usize> {
+	pub fn put_value(&self, panel_id: i32, source_id: i32, v: Value) -> rusqlite::Result<usize> {
 		self.conn.execute(
 			"INSERT INTO points(panel_id, source_id, x, y) VALUES (?, ?, ?, ?)",
 			params![panel_id, source_id, v.x, v.y],
 		)
 	}
 
-	fn load_sources(&self, panel_id:i32) -> rusqlite::Result<Vec<Source>> {
+
-		let mut sources : Vec<Source> = Vec::new();
+
-		let mut statement = self.conn.prepare("SELECT * FROM sources WHERE panel_id = ?")?;
+	pub fn load_sources(&self, panel_id: i32) -> rusqlite::Result<Vec<Source>> {
+		let mut sources: Vec<Source> = Vec::new();
+		let mut statement = self
+			.conn
+			.prepare("SELECT * FROM sources WHERE panel_id = ?")?;
 		let sources_iter = statement.query_map(params![panel_id], |row| {
-			Ok(Source{
+			Ok(Source {
 				id: row.get(0)?,
 				name: row.get(1)?,
 				url: row.get(2)?,
 				interval: row.get(3)?,
-				last_fetch: Utc.ymd(1970, 1, 1).and_hms(0, 0, 0),
+				last_fetch: RwLock::new(Utc.ymd(1970, 1, 1).and_hms(0, 0, 0)),
 				query_x: row.get(4)?,
 				// compiled_query_x: Arc::new(Mutex::new(jq_rs::compile(row.get::<usize, String>(4)?.as_str()).unwrap())),
 				query_y: row.get(5)?,
 				// compiled_query_y: Arc::new(Mutex::new(jq_rs::compile(row.get::<usize, String>(5)?.as_str()).unwrap())),
 				panel_id: row.get(6)?,
-				data: Mutex::new(Vec::new()),
+				data: RwLock::new(Vec::new()),
 			})
 		})?;
 
 		for source in sources_iter {
 			if let Ok(mut s) = source {
-				s.data = Mutex::new(self.load_values(panel_id, s.id)?);
+				s.data = RwLock::new(self.load_values(panel_id, s.id)?);
 				sources.push(s);
 			}
 		}
@@ -117,58 +121,33 @@ impl SQLiteDataStore {
 		Ok(sources)
 	}
 
-	fn put_source(&self, panel_id:i32, s:Source) -> rusqlite::Result<usize> {
-		self.conn.execute(
-			"INSERT INTO sources(id, name, url, interval, query_x, query_y, panel_id) VALUES (?, ?, ?, ?, ?, ?, ?)",
-			params![s.id, s.name, s.url, s.interval, s.query_x, s.query_y, panel_id],
-		)
-	}
-
-	fn load_panels(&self) -> rusqlite::Result<Vec<Panel>> {
-		let mut panels : Vec<Panel> = Vec::new();
-		let mut statement = self.conn.prepare("SELECT * FROM panels")?;
-		let panels_iter = statement.query_map([], |row| {
-			Ok(Panel{
-				id: row.get(0)?,
-				name: row.get(1)?,
-				view_scroll: row.get(2)?,
-				view_size: row.get(3)?,
-				width: row.get(4)?,
-				height: row.get(5)?,
-				sources: Mutex::new(Vec::new()),
-			})
-		})?;
-
-		for panel in panels_iter {
-			if let Ok(mut p) = panel {
-				p.sources = Mutex::new(self.load_sources(p.id)?);
-				panels.push(p);
-			}
-		}
-
-		Ok(panels)
-	}
-
-	fn put_panel(&self, name:&str, view_scroll:bool, view_size:i32, width:i32, height:i32) -> rusqlite::Result<usize> {
-		self.conn.execute(
-			"INSERT INTO panels (name, view_scroll, view_size, width, height) VALUES (?, ?, ?, ?, ?)",
-			params![name, view_scroll, view_size, width, height]
-		)
-	}
-
 	// jank! TODO make it not jank!
-	fn new_panel(&self, name:&str) -> rusqlite::Result<Panel> {
+	pub fn new_source(
-		self.put_panel(name, true, 100, 400, 280)?;
+		&self,
-		let mut statement = self.conn.prepare("SELECT * FROM panels WHERE name = ?")?;
+		panel_id: i32,
-		for panel in statement.query_map(params![name], |row| {
+		name: &str,
-			Ok(Panel{
+		url: &str,
+		query_x: &str,
+		query_y: &str,
+	) -> rusqlite::Result<Source> {
+		self.conn.execute(
+			"INSERT INTO sources(name, url, interval, query_x, query_y, panel_id) VALUES (?, ?, ?, ?, ?, ?)",
+			params![name, url, 60, query_x, query_y, panel_id],
+		)?;
+		let mut statement = self
+			.conn
+			.prepare("SELECT * FROM sources WHERE name = ? AND panel_id = ?")?;
+		for panel in statement.query_map(params![name, panel_id], |row| {
+			Ok(Source {
 				id: row.get(0)?,
 				name: row.get(1)?,
-				view_scroll: row.get(2)?,
+				url: row.get(2)?,
-				view_size: row.get(3)?,
+				interval: row.get(3)?,
-				width: row.get(4)?,
+				query_x: row.get(4)?,
-				height: row.get(5)?,
+				query_y: row.get(5)?,
-				sources: Mutex::new(Vec::new()),
+				panel_id: row.get(6)?,
+				last_fetch: RwLock::new(Utc.ymd(1970, 1, 1).and_hms(0, 0, 0)),
+				data: RwLock::new(Vec::new()),
 			})
 		})? {
 			if let Ok(p) = panel {
@@ -181,27 +160,99 @@ impl SQLiteDataStore {
 		Err(rusqlite::Error::QueryReturnedNoRows)
 	}
 
-	pub async fn fetch_all(&self) -> Result<(), FetchError> {
+	pub fn update_source(
-		let panels = &*self.panels.lock().unwrap();
+		&self,
-		for i in 0..panels.len() {
+		source_id: i32,
-			let sources = &*panels[i].sources.lock().unwrap();
+		name: &str,
-			for j in 0..sources.len() {
+		url: &str,
-				if !sources[j].valid() {
+		interval: i32,
-					let v = sources[j].fetch().await?;
+		query_x: &str,
-					self.put_value(panels[i].id, sources[j].id, v)?;
+		query_y: &str,
-					sources[j].data.lock().unwrap().push(v);
+	) -> rusqlite::Result<usize> {
-				}
+		self.conn.execute(
+			"UPDATE sources SET name = ?, url = ?, interval = ?, query_x = ?, query_y = ? WHERE id = ?",
+			params![name, url, interval, query_x, query_y, source_id],
+		)
+	}
+
+	pub fn delete_source(&self, id:i32) -> rusqlite::Result<usize> {
+		self.conn.execute("DELETE FROM sources WHERE id = ?", params![id])
+	}
+
+
+
+	pub fn load_panels(&self) -> rusqlite::Result<Vec<Panel>> {
+		let mut panels: Vec<Panel> = Vec::new();
+		let mut statement = self.conn.prepare("SELECT * FROM panels")?;
+		let panels_iter = statement.query_map([], |row| {
+			Ok(Panel {
+				id: row.get(0)?,
+				name: row.get(1)?,
+				view_scroll: row.get(2)?,
+				view_size: row.get(3)?,
+				timeserie: row.get(4)?,
+				width: row.get(5)?,
+				height: row.get(6)?,
+				sources: RwLock::new(Vec::new()),
+			})
+		})?;
+
+		for panel in panels_iter {
+			if let Ok(mut p) = panel {
+				p.sources = RwLock::new(self.load_sources(p.id)?);
+				panels.push(p);
 			}
 		}
 
-		Ok(())
+		Ok(panels)
 	}
 
+	// jank! TODO make it not jank!
+	pub fn new_panel(&self, name: &str, view_size:i32, width: i32, height: i32) -> rusqlite::Result<Panel> {
+		self.conn.execute(
+			"INSERT INTO panels (name, view_scroll, view_size, timeserie, width, height) VALUES (?, ?, ?, ?, ?, ?)",
+			params![name, true, view_size, true, width, height]
+		)?;
+		let mut statement = self.conn.prepare("SELECT * FROM panels WHERE name = ?")?;
+		for panel in statement.query_map(params![name], |row| {
+			Ok(Panel {
+				id: row.get(0)?,
+				name: row.get(1)?,
+				view_scroll: row.get(2)?,
+				view_size: row.get(3)?,
+				timeserie: row.get(4)?,
+				width: row.get(5)?,
+				height: row.get(6)?,
+				sources: RwLock::new(Vec::new()),
+			})
+		})? {
+			if let Ok(p) = panel {
+				return Ok(p);
+			}
+		}
+		Err(rusqlite::Error::QueryReturnedNoRows)
+	}
+
+	pub fn update_panel(
+		&self,
+		id: i32,
+		name: &str,
+		view_scroll: bool,
+		view_size: i32,
+		timeserie: bool,
+		width: i32,
+		height: i32,
+	) -> rusqlite::Result<usize> {
+		self.conn.execute(
+			"UPDATE panels SET name = ?, view_scroll = ?, view_size = ?, timeserie = ?, width = ?, height = ? WHERE id = ?",
+			params![name, view_scroll, view_size, timeserie, width, height, id],
+		)
+	}
+
+	pub fn delete_panel(&self, id:i32) -> rusqlite::Result<usize> {
+		self.conn.execute("DELETE FROM panels WHERE id = ?", params![id])
+	}
+
+
+
 }
-
-impl DataStorage for SQLiteDataStore {
-	fn add_panel(&self, name:&str) {
-		let panel = self.new_panel(name).unwrap();
-		self.panels.lock().unwrap().push(panel);
-	}
-}

src/app/mod.rs

@@ -1,32 +1,47 @@
 pub mod data;
+pub mod worker;
 
-use std::sync::{Arc, Mutex};
+use std::sync::Arc;
 use chrono::{DateTime, NaiveDateTime, Utc};
-use data::source::{ChatData, PlayerCountData, TpsData, Data, native_save};
 use eframe::egui;
-use eframe::egui::plot::{Line, Plot, Values};
+use eframe::egui::{plot::{Line, Plot}};
-use crate::app::data::store::DataStorage;
 
-use self::data::store::SQLiteDataStore;
+use self::data::ApplicationState;
+use self::worker::native_save;
 
-pub struct App {
+struct InputBuffer {
-	// data : SQLiteDataStore,
+	panel_name: String,
-	data : Arc<SQLiteDataStore>,
+	name: String,
+	url: String,
+	interval: i32,
+	query_x: String,
+	query_y: String,
+	panel_id: i32,
 }
 
-struct ServerOptions {
+impl Default for InputBuffer {
-	title: String,
+	fn default() -> Self {
-	url: String,
+		InputBuffer {
-	player_count: PlayerCountData,
+			panel_name: "".to_string(),
-	tps: TpsData,
+			name: "".to_string(),
-	chat: ChatData,
+			url: "".to_string(),
-	sync_time:bool,
+			interval: 60,
+			query_x: "".to_string(),
+			query_y: "".to_string(),
+			panel_id: 0,
+		}	
+	}
+}
+
+pub struct App {
+	data: Arc<ApplicationState>,
+	input: InputBuffer,
+	edit: bool,
 }
 
 impl App {
-	// pub fn new(_cc: &eframe::CreationContext, data: SQLiteDataStore) -> Self {
+	pub fn new(_cc: &eframe::CreationContext, data: Arc<ApplicationState>) -> Self {
-	pub fn new(_cc: &eframe::CreationContext, data: Arc<SQLiteDataStore>) -> Self {
+		Self { data, input: InputBuffer::default(), edit: false }
-		Self { data }
 	}
 }
 
@@ -36,48 +51,104 @@ impl eframe::App for App {
 			ui.horizontal(|ui| {
 				egui::widgets::global_dark_light_mode_switch(ui);
 				ui.heading("dashboard");
-				if ui.button("test add").clicked() {
+				ui.checkbox(&mut self.edit, "edit");
-					self.data.add_panel("test panel");
+				if self.edit {
+					if ui.button("save").clicked() {
+						native_save(self.data.clone());
+					}
 				}
 				ui.with_layout(egui::Layout::top_down(egui::Align::RIGHT), |ui| {
-					if ui.button("x").clicked() {
+					if ui.button("×").clicked() {
 						frame.quit();
 					}
 				});
 			});
-		});
+			if self.edit {
-		egui::CentralPanel::default().show(ctx, |ui| {
+				ui.horizontal(|ui| {
-			let panels = &*self.data.panels.lock().unwrap();
+					eframe::egui::TextEdit::singleline(&mut self.input.panel_name).hint_text("panel").desired_width(50.0).show(ui);
-			for i in 0..panels.len() {
+					if ui.button("add panel").clicked() {
-			// for panel in self.data.view() {
+						self.data.add_panel(self.input.panel_name.as_str()).unwrap();
-				ui.group(|ui| {
+					}
-					ui.vertical(|ui| {
+					eframe::egui::TextEdit::singleline(&mut self.input.name).hint_text("name").desired_width(30.0).show(ui);
-						ui.horizontal(|ui| {
+					eframe::egui::TextEdit::singleline(&mut self.input.url).hint_text("url").desired_width(80.0).show(ui);
-							ui.heading(panels[i].name.as_str());
+					eframe::egui::TextEdit::singleline(&mut self.input.query_x).hint_text("x query").desired_width(25.0).show(ui);
-							// ui.checkbox(&mut panel.view_scroll, "autoscroll");
+					eframe::egui::TextEdit::singleline(&mut self.input.query_y).hint_text("y query").desired_width(25.0).show(ui);
-						});
+					egui::ComboBox::from_label("panel")
-						let mut p = Plot::new(format!("plot-{}", panels[i].name)).x_axis_formatter(|x, _range| {
+						.selected_text(format!("[{}]", self.input.panel_id))
-							format!(
+						.show_ui(ui, |ui| {
-								"{}",
+							let pnls = self.data.panels.write().unwrap();
-								DateTime::<Utc>::from_utc(NaiveDateTime::from_timestamp(x as i64, 0), Utc)
+							for p in &*pnls {
-									.format("%Y/%m/%d %H:%M:%S")
+								ui.selectable_value(&mut self.input.panel_id, p.id, p.name.as_str());
-							)
-						}).center_x_axis(false).height(panels[i].height as f32); // TODO make it fucking reactive! It fills the whole screen with 1 plot no matter what I do...
-
-						if panels[i].view_scroll {
-							p = p.include_x(Utc::now().timestamp() as f64);
-						}
-
-						p.show(ui, |plot_ui| {
-							let sources = &*panels[i].sources.lock().unwrap();
-							for j in 0..sources.len() {
-								plot_ui.line(Line::new(sources[j].values()).name(sources[j].name.as_str()));
 							}
-						});
+						}
-					});
+					);
+					if ui.button("add source").clicked() {
+						self.data.add_source(
+							self.input.panel_id,
+							self.input.name.as_str(),
+							self.input.url.as_str(),
+							self.input.query_x.as_str(),
+							self.input.query_y.as_str(),
+						).unwrap();
+					}
+					ui.add(egui::Slider::new(&mut self.input.interval, 1..=600).text("interval"));
 				});
 			}
 		});
-		ctx.request_repaint(); // TODO super jank way to sorta keep drawing
+		egui::CentralPanel::default().show(ctx, |ui| {
+			egui::ScrollArea::vertical().show(ui, |ui| {
+				let mut panels = self.data.panels.write().unwrap();
+				for panel in &mut *panels {
+				// for panel in self.data.view() {
+					ui.group(|ui| {
+						ui.vertical(|ui| {
+							ui.horizontal(|ui| {
+								ui.heading(panel.name.as_str());
+								ui.checkbox(&mut panel.view_scroll, "autoscroll");
+								ui.checkbox(&mut panel.timeserie, "timeserie");
+								ui.add(egui::Slider::new(&mut panel.height, 0..=500).text("height"));
+							});
+
+							let mut sources = panel.sources.write().unwrap();
+
+							if self.edit {
+								for source in &mut *sources {
+									ui.horizontal(|ui| {
+										ui.heading(source.name.as_str());
+										eframe::egui::TextEdit::singleline(&mut source.url).hint_text("url").show(ui);
+										eframe::egui::TextEdit::singleline(&mut source.query_x).hint_text("x query").show(ui);
+										eframe::egui::TextEdit::singleline(&mut source.query_y).hint_text("y query").show(ui);
+										ui.add(egui::Slider::new(&mut source.interval, 1..=600).text("interval"));
+									});
+								}
+							}
+
+							let mut p = Plot::new(format!("plot-{}", panel.name))
+								.height(panel.height as f32); // TODO make it fucking reactive! It fills the whole screen with 1 plot no matter what I do...
+
+							if panel.view_scroll {
+								p = p.include_x(Utc::now().timestamp() as f64);
+							}
+
+							if panel.timeserie {
+								p = p.x_axis_formatter(|x, _range| {
+									format!(
+										"{}",
+										DateTime::<Utc>::from_utc(NaiveDateTime::from_timestamp(x as i64, 0), Utc)
+											.format("%Y/%m/%d %H:%M:%S")
+									)
+								});
+							}
+
+							p.show(ui, |plot_ui| {
+								for source in &mut *sources {
+									plot_ui.line(Line::new(source.values()).name(source.name.as_str()));
+								}
+							});
+						});
+					});
+				}
+			});
+		});
 	}
 }

src/app/worker.rs

@@ -0,0 +1,94 @@
+use std::sync::Arc;
+use chrono::Utc;
+use eframe::egui::Context;
+use crate::app::data::{fetch, ApplicationState};
+
+pub fn native_save(state:Arc<ApplicationState>) {
+	std::thread::spawn(move || {
+		let storage = state.storage.lock().unwrap();
+		let panels = state.panels.read().unwrap();
+		for panel in &*panels {
+			storage.update_panel(
+				panel.id,
+				panel.name.as_str(),
+				panel.view_scroll,
+				panel.view_size,
+				panel.timeserie,
+				panel.width,
+				panel.height
+			).unwrap();
+			let sources = panel.sources.read().unwrap();
+			for source in &*sources {
+				storage.update_source(
+					source.id,
+					source.name.as_str(),
+					source.url.as_str(),
+					source.interval,
+					source.query_x.as_str(),
+					source.query_y.as_str(),
+				).unwrap();
+			}
+		}
+	});
+}
+
+pub(crate) trait BackgroundWorker {
+	fn start(state:Arc<ApplicationState>, ctx:Context) -> Self;  // TODO make it return an error? Can we even do anything without a background worker
+	fn stop(self);   // TODO make it return an error? Can we even do anything without a background worker
+}
+
+pub(crate) struct NativeBackgroundWorker {
+	worker : std::thread::JoinHandle<()>,
+}
+
+impl BackgroundWorker for NativeBackgroundWorker {
+	fn start(state:Arc<ApplicationState>, ctx:Context) -> Self {
+		let worker = std::thread::spawn(move || {
+			let mut last_check = 0;
+			while state.run {
+				let delta_time = 1000 - (Utc::now().timestamp_millis() - last_check);
+				if delta_time > 0 {
+					std::thread::sleep(std::time::Duration::from_millis(delta_time as u64));
+				}
+				last_check = Utc::now().timestamp_millis();
+
+				let panels = state.panels.read().unwrap();
+				for i in 0..panels.len() {
+					let sources = panels[i].sources.read().unwrap();
+					let p_id = panels[i].id;
+					for j in 0..sources.len() {
+						let s_id = sources[j].id;
+						if !sources[j].valid() {
+							let mut last_update = sources[j].last_fetch.write().unwrap();
+							*last_update = Utc::now();
+							let state2 = state.clone();
+							let url = sources[j].url.clone();
+							let query_x = sources[j].query_x.clone();
+							let query_y = sources[j].query_y.clone();
+							std::thread::spawn(move || {
+								let v = fetch(url.as_str(), query_x.as_str(), query_y.as_str()).unwrap();
+								let store = state2.storage.lock().unwrap();
+								store.put_value(p_id, s_id, v).unwrap();
+								let panels = state2.panels.read().unwrap();
+								let sources = panels[i].sources.read().unwrap();
+								sources[j].data.write().unwrap().push(v);
+								let mut last_update = sources[j].last_fetch.write().unwrap();
+								*last_update = Utc::now(); // overwrite it so fetches comply with API slowdowns and get desynched among them
+							});
+						}
+					}
+				}
+
+				ctx.request_repaint();
+			}
+		});
+
+		return NativeBackgroundWorker {
+			worker
+		};
+	}
+
+	fn stop(self) {
+		self.worker.join().expect("Failed joining main worker thread");
+	}
+}

src/main.rs

@@ -1,10 +1,7 @@
 mod app;
-mod util;
 
-use std::sync::{Arc, Mutex};
+use std::sync::Arc;
-use tokio::time::{sleep, Duration};
+use crate::app::{App, data::ApplicationState, worker::{BackgroundWorker, NativeBackgroundWorker}};
-use crate::util::worker::{BackgroundWorker, NativeBackgroundWorker};
-use crate::app::{App, data::store::{SQLiteDataStore, DataStorage}};
 
 // When compiling natively:
 #[cfg(not(target_arch = "wasm32"))]
@@ -14,27 +11,13 @@ fn main() -> ! {
 	let mut store_path = dirs::data_dir().unwrap_or(std::path::PathBuf::from(".")); // TODO get cwd more consistently?
 	store_path.push("dashboard.db");
 
-	println!("{}", store_path.as_path().to_str().unwrap());
+	let store = Arc::new(ApplicationState::new(store_path));
-
-	let store = Arc::new(
-			SQLiteDataStore::new(store_path)
-				.unwrap()
-	);
 
 	eframe::run_native( // TODO replace this with a loop that ends so we can cleanly exit the background worker
 		"dashboard",
 		native_options,
 		Box::new(move |cc| {
-			let worker = NativeBackgroundWorker::start();
+			let _worker = NativeBackgroundWorker::start(store.clone(), cc.egui_ctx.clone());
-			let ctx = cc.egui_ctx.clone();
-			worker.task(async move {
-				loop {
-					sleep(Duration::from_secs(1)).await;
-					ctx.request_repaint();
-					// tokio::spawn(async move {store2.fetch_all().await});
-				}
-			});
-
 			Box::new(App::new(cc, store))
 		}),
 	);

src/util/mod.rs

@@ -1 +0,0 @@
-pub(crate) mod worker;

src/util/worker.rs

@@ -1,47 +0,0 @@
-use tokio::{runtime::{Handle, Runtime, Builder}, sync::oneshot::Sender, time::{sleep, Duration}};
-
-pub(crate) trait BackgroundWorker {
-	fn start() -> Self;  // TODO make it return an error? Can we even do anything without a background worker
-	fn task<T>(&self, task:T) where T : std::future::Future<Output = ()> + core::marker::Send + 'static;
-	fn stop(self);   // TODO make it return an error? Can we even do anything without a background worker
-}
-
-pub(crate) struct NativeBackgroundWorker {
-	runtime : Handle,
-	// end_tx : Sender<bool>,
-	worker : std::thread::JoinHandle<bool>,
-}
-
-impl BackgroundWorker for NativeBackgroundWorker {
-	fn start() -> Self {
-		let (rt_tx, rt_rx) = tokio::sync::oneshot::channel::<Handle>();
-		let worker = std::thread::spawn(|| {
-			let runtime = Builder::new_multi_thread()
-				.worker_threads(1)
-				.enable_all()
-				.build()
-				.unwrap();
-			rt_tx.send(runtime.handle().clone()).unwrap();
-			runtime.block_on(async {
-				loop {
-		 			println!("keepalive loop");
-		 			sleep(Duration::from_secs(1)).await;
-				}
-			})
-		});
-		NativeBackgroundWorker {
-			runtime : rt_rx.blocking_recv().unwrap(),
-			// end_tx : end_tx,
-			worker : worker,
-		}
-	}
-
-	fn task<T>(&self, task:T) where T : std::future::Future<Output = ()> + core::marker::Send + 'static {
-		self.runtime.spawn(task);
-	}
-
-	fn stop(self) {
-		// self.end_tx.send(true).expect("Failed signaling termination");
-		// self.worker.join().expect("Failed joining main worker thread");
-	}
-}