add rotating file logs

src/logging.rs

@@ -1,6 +1,6 @@
 use once_cell::sync::OnceCell;
 use std::sync::atomic::*;
-use std::fs::{OpenOptions, File, create_dir_all};
+use std::fs::{OpenOptions, File, create_dir_all, copy};
 use std::io::Write;
 
 #[derive(Debug, PartialEq, PartialOrd)]
@@ -50,6 +50,8 @@ static LEVEL: OnceCell<LogLevel> = OnceCell::new();
 static LOG_FILE: OnceCell<File> = OnceCell::new();
 static HAS_INITED: AtomicBool = AtomicBool::new(false);
 static FILE_IS_GOOD: AtomicBool = AtomicBool::new(false);
+static FILE_DATE: OnceCell<String> = OnceCell::new();
+static FILE_FOLDER: OnceCell<String> = OnceCell::new();
 
 pub fn init_logger(log_folder: &str, level: LogLevel) {
     if HAS_INITED.load(Ordering::Relaxed) {
@@ -59,7 +61,10 @@ pub fn init_logger(log_folder: &str, level: LogLevel) {
     
     HAS_INITED.store(true, Ordering::Relaxed);
 
-    let log_file = format!("{}/apollo.log", log_folder);
+    let _ = FILE_DATE.set(chrono::offset::Local::now().format("%F").to_string());
+
+    let log_file = format!("{}/whisper.log", log_folder);
+    let _ = FILE_FOLDER.set(log_folder.to_string());
     let dir_create_result: Result<(), std::io::Error> = create_dir_all(log_folder);
 
     if dir_create_result.is_err() {
@@ -93,6 +98,26 @@ pub fn log(level: LogLevel, module: &str, submodule: &str, message: &str) {
         timestamp, level, module, submodule, message
     );
 
+    let new_time = chrono::offset::Local::now().format("%F").to_string();
+
+    if !FILE_DATE.get().unwrap().eq(&new_time) {
+        let _ = FILE_DATE.set(new_time.clone());
+        let log_folder = FILE_FOLDER.get().unwrap();
+        let log_file = format!("{}/apollo.log", log_folder);
+        
+        match copy(log_file.clone(), format!("{}/apollo-{}.log", log_folder, new_time)) {
+            Err(e) => println!("Failed to copy over log! {:?}", e),
+            _ => {
+                match File::create(log_file) {
+                    Err(e) => println!("Failed to open log file! {}", e),
+                    Ok(f) => {
+                        let _ = LOG_FILE.set(f);
+                    }
+                }
+            }
+        }
+    }
+
     if level >= *LEVEL.get().unwrap() {
         println!("{logstr}");