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|
//! Logging for Fluorine Manager.
//!
//! All log messages are:
//! 1. Written to `~/.local/share/fluorine/logs/nak.log` (always)
//! 2. Forwarded to an optional callback set via `set_log_callback()` (for MOBase::log)
use std::fs;
use std::io::Write;
use std::path::PathBuf;
use std::sync::Mutex;
/// Signature for the log callback: (level, message)
///
/// Levels: "info", "warning", "error", "install", "action", "download"
type LogCallback = Box<dyn Fn(&str, &str) + Send + Sync>;
static LOG_CALLBACK: Mutex<Option<LogCallback>> = Mutex::new(None);
/// Set the global log callback. Call once at startup from FFI.
pub fn set_log_callback(cb: impl Fn(&str, &str) + Send + Sync + 'static) {
if let Ok(mut guard) = LOG_CALLBACK.lock() {
*guard = Some(Box::new(cb));
}
}
/// Get the log directory path.
fn log_dir() -> PathBuf {
crate::paths::data_dir().join("logs")
}
/// Get the log file path.
fn log_file_path() -> PathBuf {
log_dir().join("nak.log")
}
fn emit(level: &str, message: &str) {
// Write to file (always, even before callback is set)
write_to_file(level, message);
// Forward to callback if set
if let Ok(guard) = LOG_CALLBACK.lock() {
if let Some(ref cb) = *guard {
cb(level, message);
}
}
}
fn write_to_file(level: &str, message: &str) {
let path = log_file_path();
// Ensure log directory exists (only try once per message, cheap no-op if exists)
if let Some(parent) = path.parent() {
let _ = fs::create_dir_all(parent);
}
// Rotate if over 2MB
if let Ok(meta) = fs::metadata(&path) {
if meta.len() > 2 * 1024 * 1024 {
let old = path.with_extension("log.old");
let _ = fs::rename(&path, &old);
}
}
let Ok(mut file) = fs::OpenOptions::new()
.create(true)
.append(true)
.open(&path)
else {
return;
};
let timestamp = chrono::Local::now().format("%H:%M:%S");
let _ = writeln!(file, "[{}] [{}] {}", timestamp, level.to_uppercase(), message);
}
pub fn log_info(message: &str) {
emit("info", message);
}
pub fn log_warning(message: &str) {
emit("warning", message);
}
pub fn log_error(message: &str) {
emit("error", message);
}
pub fn log_install(message: &str) {
emit("install", message);
}
pub fn log_action(message: &str) {
emit("action", message);
}
pub fn log_download(message: &str) {
emit("download", message);
}
|
