Log via log crate

Cargo.lock

@@ -137,6 +137,7 @@ dependencies = [
  "directories",
  "edit",
  "futures",
+ "log",
  "parking_lot",
  "rand",
  "rusqlite",

Cargo.toml

@@ -11,6 +11,7 @@ crossterm = "0.23.2"
 directories = "4.0.1"
 edit = "0.1.4"
 futures = "0.3.21"
+log = "0.4.17"
 parking_lot = "0.12.1"
 rand = "0.8.5"
 rusqlite = { version = "0.27.0", features = ["chrono"] }

src/logger.rs

@@ -3,6 +3,7 @@ use std::vec;
 
 use async_trait::async_trait;
 use chrono::{DateTime, Utc};
+use log::{Level, Log};
 use parking_lot::Mutex;
 
 use crate::store::{Msg, MsgStore, Path, Tree};
@@ -11,7 +12,7 @@ use crate::store::{Msg, MsgStore, Path, Tree};
 pub struct LogMsg {
     id: usize,
     time: DateTime<Utc>,
-    topic: String,
+    level: Level,
     content: String,
 }
 
@@ -31,7 +32,7 @@ impl Msg for LogMsg {
     }
 
     fn nick(&self) -> String {
-        self.topic.clone()
+        format!("{}", self.level)
     }
 
     fn content(&self) -> String {
@@ -40,19 +41,17 @@ impl Msg for LogMsg {
 }
 
 #[derive(Debug, Clone)]
-pub struct Log {
+pub struct Logger(Arc<Mutex<Vec<LogMsg>>>);
-    entries: Arc<Mutex<Vec<LogMsg>>>,
-}
 
 #[async_trait]
-impl MsgStore<LogMsg> for Log {
+impl MsgStore<LogMsg> for Logger {
     async fn path(&self, id: &usize) -> Path<usize> {
         Path::new(vec![*id])
     }
 
     async fn tree(&self, root: &usize) -> Tree<LogMsg> {
         let msgs = self
-            .entries
+            .0
             .lock()
             .get(*root)
             .map(|msg| vec![msg.clone()])
@@ -65,35 +64,50 @@ impl MsgStore<LogMsg> for Log {
     }
 
     async fn next_tree(&self, tree: &usize) -> Option<usize> {
-        let len = self.entries.lock().len();
+        let len = self.0.lock().len();
         tree.checked_add(1).filter(|t| *t < len)
     }
 
     async fn first_tree(&self) -> Option<usize> {
-        let empty = self.entries.lock().is_empty();
+        let empty = self.0.lock().is_empty();
         Some(0).filter(|_| !empty)
     }
 
     async fn last_tree(&self) -> Option<usize> {
-        self.entries.lock().len().checked_sub(1)
+        self.0.lock().len().checked_sub(1)
     }
 }
 
-impl Log {
+impl Log for Logger {
-    pub fn new() -> Self {
+    fn enabled(&self, metadata: &log::Metadata) -> bool {
-        Self {
+        true
-            entries: Arc::new(Mutex::new(Vec::new())),
-        }
     }
 
-    pub fn log<S1: ToString, S2: ToString>(&self, topic: S1, content: S2) {
+    fn log(&self, record: &log::Record) {
-        let mut guard = self.entries.lock();
+        if !self.enabled(record.metadata()) {
+            return;
+        }
+
+        let mut guard = self.0.lock();
         let msg = LogMsg {
             id: guard.len(),
             time: Utc::now(),
-            topic: topic.to_string(),
+            level: record.level(),
-            content: content.to_string(),
+            content: format!("<{}> {}", record.target(), record.args()),
         };
         guard.push(msg);
     }
+
+    fn flush(&self) {}
+}
+
+impl Logger {
+    pub fn init(level: Level) -> &'static Self {
+        let logger = Box::leak(Box::new(Self(Arc::new(Mutex::new(Vec::new())))));
+
+        log::set_logger(logger).expect("logger already set");
+        log::set_max_level(level.to_level_filter());
+
+        logger
+    }
 }

src/main.rs

@@ -2,18 +2,28 @@
 
 mod chat;
 mod euph;
-mod log;
+mod logger;
 mod replies;
 mod store;
 mod ui;
 mod vault;
 
 use directories::ProjectDirs;
+use log::info;
 use toss::terminal::Terminal;
 use ui::Ui;
 
+use crate::logger::Logger;
+
 #[tokio::main]
 async fn main() -> anyhow::Result<()> {
+    let logger = Logger::init(log::Level::Debug);
+    info!(
+        "Welcome to {} {}",
+        env!("CARGO_PKG_NAME"),
+        env!("CARGO_PKG_VERSION")
+    );
+
     let dirs = ProjectDirs::from("de", "plugh", "cove").expect("unable to determine directories");
     println!("Data dir: {}", dirs.data_dir().to_string_lossy());
 
@@ -21,7 +31,7 @@ async fn main() -> anyhow::Result<()> {
 
     let mut terminal = Terminal::new()?;
     // terminal.set_measuring(true);
-    Ui::run(&mut terminal).await?;
+    Ui::run(&mut terminal, logger.clone()).await?;
     drop(terminal); // So the vault can print again
 
     vault.close().await;

src/ui.rs

@@ -2,6 +2,7 @@ use std::sync::{Arc, Weak};
 use std::time::Duration;
 
 use crossterm::event::{Event, KeyCode, KeyEvent, KeyModifiers, MouseEvent};
+use log::debug;
 use parking_lot::FairMutex;
 use tokio::sync::mpsc::error::TryRecvError;
 use tokio::sync::mpsc::{self, UnboundedReceiver, UnboundedSender};
@@ -10,7 +11,7 @@ use toss::frame::{Frame, Pos, Size};
 use toss::terminal::Terminal;
 
 use crate::chat::Chat;
-use crate::log::{Log, LogMsg};
+use crate::logger::{LogMsg, Logger};
 use crate::store::dummy::{DummyMsg, DummyStore};
 
 #[derive(Debug)]
@@ -31,20 +32,16 @@ enum Visible {
 
 pub struct Ui {
     event_tx: UnboundedSender<UiEvent>,
-    log: Log,
 
     visible: Visible,
     chat: Chat<DummyMsg, DummyStore>,
-    log_chat: Chat<LogMsg, Log>,
+    log_chat: Chat<LogMsg, Logger>,
 }
 
 impl Ui {
     const POLL_DURATION: Duration = Duration::from_millis(100);
 
-    pub async fn run(terminal: &mut Terminal) -> anyhow::Result<()> {
+    pub async fn run(terminal: &mut Terminal, logger: Logger) -> anyhow::Result<()> {
-        let log = Log::new();
-        log.log("Hello", "world!");
-
         let (event_tx, event_rx) = mpsc::unbounded_channel();
         let crossterm_lock = Arc::new(FairMutex::new(()));
 
@@ -54,7 +51,6 @@ impl Ui {
         let crossterm_event_task = task::spawn_blocking(|| {
             Self::poll_crossterm_events(event_tx_clone, weak_crossterm_lock)
         });
-        log.log("main", "Started input polling task");
 
         // Prepare dummy message store and chat for testing
         let store = DummyStore::new()
@@ -82,10 +78,9 @@ impl Ui {
         // the rest of the UI is also shut down and the client stops.
         let mut ui = Self {
             event_tx,
-            log: log.clone(),
             visible: Visible::Log,
             chat,
-            log_chat: Chat::new(log),
+            log_chat: Chat::new(logger),
         };
         let result = tokio::select! {
             e = ui.run_main(terminal, event_rx, crossterm_lock) => e,
@@ -184,7 +179,7 @@ impl Ui {
         }
 
         match event.code {
-            KeyCode::Char('e') => self.log.log("EE E", "E ee e!"),
+            KeyCode::Char('e') => debug!("{:#?}", event),
             KeyCode::F(1) => self.visible = Visible::Main,
             KeyCode::F(2) => self.visible = Visible::Log,
             _ => {}