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use std::fs::{File, OpenOptions};
use std::io::Write;
use std::str::FromStr;
use std::sync::Mutex;
use crate::config::Config;
use humphrey::http::date::DateTime;
pub struct Logger {
level: LogLevel,
console: bool,
file: Option<Mutex<File>>,
}
impl From<&Config> for Logger {
fn from(config: &Config) -> Self {
let file = if let Some(path) = &config.log_file {
Some(Mutex::new(
OpenOptions::new()
.write(true)
.truncate(true)
.create(true)
.open(path)
.unwrap(),
))
} else {
None
};
Self {
level: config.log_level.clone(),
console: config.log_console,
file,
}
}
}
impl Default for Logger {
fn default() -> Self {
Self {
level: LogLevel::Warn,
console: true,
file: None,
}
}
}
impl Logger {
pub fn error(&self, message: &str) {
let string = format!("{} [ERROR] {}", Logger::time_format(), message);
self.log_to_console(&string);
self.log_to_file(&string);
}
pub fn warn(&self, message: &str) {
if self.level >= LogLevel::Warn {
let string = format!("{} [WARN] {}", Logger::time_format(), message);
self.log_to_console(&string);
self.log_to_file(&string);
}
}
pub fn info(&self, message: &str) {
if self.level >= LogLevel::Info {
let string = format!("{} [INFO] {}", Logger::time_format(), message);
self.log_to_console(&string);
self.log_to_file(&string);
}
}
pub fn debug(&self, message: &str) {
if self.level == LogLevel::Debug {
let string = format!("{} [DEBUG] {}", Logger::time_format(), message);
self.log_to_console(&string);
self.log_to_file(&string);
}
}
fn time_format() -> String {
let time = DateTime::now();
format!(
"{}-{:02}-{:02} {:02}:{:02}:{:02}",
time.year,
time.month + 1,
time.day,
time.hour,
time.minute,
time.second
)
}
fn log_to_console(&self, string: &str) {
if self.console {
println!("{}", string);
}
}
fn log_to_file(&self, string: &str) {
if let Some(file_mutex) = &self.file {
let mut file = file_mutex.lock().unwrap();
file.write_all(string.as_bytes()).unwrap();
file.write_all(b"\n").unwrap();
}
}
}
#[derive(Clone, Debug, PartialEq, Eq, PartialOrd, Ord)]
pub enum LogLevel {
Error,
Warn,
Info,
Debug,
}
impl FromStr for LogLevel {
type Err = &'static str;
fn from_str(s: &str) -> Result<Self, Self::Err> {
match s.to_ascii_lowercase().as_str() {
"error" => Ok(Self::Error),
"warn" => Ok(Self::Warn),
"info" => Ok(Self::Info),
"debug" => Ok(Self::Debug),
_ => Err("Log level was invalid"),
}
}
}