Add debug log window

crates/backend/src/logger.rs

@@ -1,20 +1,31 @@
+use chrono::{Local, DateTime};
 use log::{Level, LevelFilter, Log, Metadata, Record};
-use std::{fmt::Display, sync::Mutex};
+use std::{fmt::Display, sync::{Arc, Mutex}};
 
 /// Register the custom logger. This will panic if called more than once.
-pub fn register() {
-    log::set_boxed_logger(Box::new(Logger::default()))
+pub fn register() -> Arc<Logger> {
+    let logger = Arc::new(Logger::default());
+
+    log::set_boxed_logger(Box::new(Arc::clone(&logger)))
         .map(|()| log::set_max_level(LevelFilter::Info))
         .unwrap();
+
+    logger
 }
 
 /// A simple logging handler that prints out all messages and caches them for
 /// later access by the user interface.
-struct Logger {
+pub struct Logger {
     /// All messages since the start of the program.
     messages: Mutex<Vec<LogMessage>>,
 }
 
+impl Logger {
+    pub fn messages(&self) -> Vec<LogMessage> {
+        self.messages.lock().unwrap().clone()
+    }
+}
+
 impl Default for Logger {
     fn default() -> Self {
         Self {
@@ -40,7 +51,9 @@ impl Log for Logger {
 }
 
 /// A simplified representation of a [`Record`].
-struct LogMessage {
+#[derive(Clone)]
+pub struct LogMessage {
+    pub time: DateTime<Local>,
     pub level: String,
     pub module: String,
     pub message: String,
@@ -49,6 +62,7 @@ struct LogMessage {
 impl<'a> From<&Record<'a>> for LogMessage {
     fn from(record: &Record<'a>) -> Self {
         Self {
+            time: Local::now(),
             level: record.level().to_string(),
             module: String::from(record.module_path().unwrap_or_else(|| record.target())),
             message: format!("{}", record.args()),
@@ -58,6 +72,6 @@ impl<'a> From<&Record<'a>> for LogMessage {
 
 impl Display for LogMessage {
     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
-        write!(f, "{} ({}): {}", self.module, self.level, self.message)
+        write!(f, "{} {} ({}): {}", self.time, self.module, self.level, self.message)
     }
 }