implemented `SIGUSER/SIGINT/SIGTERM` handlers, graceful shutdown, logging to file

1 files changed, 35 insertions, 0 deletions

diff --git a/init/src/log.rs b/init/src/log.rs
index 4c89dd1..207394b 100644
--- a/init/src/log.rs
+++ b/init/src/log.rs
@@ -1,11 +1,46 @@
+use std::fs::OpenOptions;
+use std::io::Write;
+use std::sync::Mutex;
+
+const LOG_FILE_PATH: &str = "/var/log/vigil.log";
+
+static LOG_FILE: Mutex<Option<std::fs::File>> = Mutex::new(None);
+
+/// Инициализирует файл логирования. Должен вызываться один раз при старте.
+pub fn init_logging() -> Result<(), Box<dyn std::error::Error>> {
+    let file = OpenOptions::new()
+        .create(true)
+        .append(true)
+        .open(LOG_FILE_PATH)?;
+    
+    let mut guard = LOG_FILE.lock().map_err(|e| e.to_string())?;
+    *guard = Some(file);
+    Ok(())
+}
+
+fn write_to_log(message: &str) {
+    let mut guard = match LOG_FILE.lock() {
+        Ok(g) => g,
+        Err(poisoned) => poisoned.into_inner(),
+    };
+    
+    if let Some(ref mut file) = *guard {
+        let _ = writeln!(file, "{}", message);
+        let _ = file.flush();
+    }
+}
+
 pub fn log_critical_error(message: &str) {
     println!("\x1b[31m * \x1b[0m {}", message);
+    write_to_log(&format!("[CRITICAL] {}", message));
 }
 
 pub fn log_warning(message: &str) {
     println!("\x1b[33m * \x1b[0m {}", message);
+    write_to_log(&format!("[WARNING] {}", message));
 }
 
 pub fn log_success(message: &str) {
     println!("\x1b[32m * \x1b[0m {}", message);
+    write_to_log(&format!("[OK] {}", message));
 }