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use btui::Terminal;
use btui::{
effects::*,
print::{fg, sp},
};
use chrono::prelude::*;
use std::fs::File;
use std::fs::OpenOptions;
use std::io::Write;
use std::path::Path;
/// the type of log
pub enum LogType {
Warning,
Error,
Log,
}
/// A logger that logs to stderr and/or a file
pub struct Logger {
term: Option<Terminal>,
file: Option<File>,
}
impl Logger {
/// create a new logger
pub fn new() -> Logger {
Logger {
term: None,
file: None,
}
}
/// set the log file to log to for the logger
/// # Returns
/// A result that is an error variant if the file opening process fails
pub fn set_logfile(&mut self, fname: &str) -> Result<(), std::io::Error> {
let path = Path::new(fname);
if let Some(parent) = path.parent() {
if !parent.exists() {
if let Err(e) = std::fs::create_dir_all(parent) {
return Err(e);
}
}
}
self.file = match OpenOptions::new().append(true).create(true).open(fname) {
Ok(n) => Some(n),
Err(e) => {
return Err(e);
}
};
Ok(())
}
/// set the terminal to log to for a logger
pub fn set_term(&mut self, term: Terminal) {
self.term = Some(term);
}
/// log a message with a specific type
pub fn log<T: std::fmt::Display>(&mut self, msg: T, msgtype: LogType) {
match msgtype {
LogType::Warning => {
// TODO: make time be a string formatted in the way used internally
let cur_time: DateTime<Local> = Local::now();
if let Some(n) = &self.term {
let _ = n.eprintln(format!(
"[{}]: {}Warning: {}{}{}",
cur_time.format("%d-%m-%Y %H:%M:%S").to_string(),
fg(Color::Yellow),
fg(Color::White),
msg,
sp(Special::Reset)
));
}
if let Some(n) = &mut self.file {
let _ = n.write(
format!(
"[{}]: Warning: {}\n",
cur_time.format("%d-%m-%Y %H:%M:%S").to_string(),
msg
)
.as_str()
.as_bytes(),
);
let _ = n.flush();
}
}
LogType::Error => {
let cur_time: DateTime<Local> = Local::now();
if let Some(n) = &self.term {
let _ = n.eprintln(format!(
"[{}]: {}Error: {}{}{}",
cur_time.format("%d-%m-%Y %H:%M:%S").to_string(),
fg(Color::Red),
fg(Color::White),
msg,
sp(Special::Reset)
));
}
if let Some(n) = &mut self.file {
let _ = n.write(
format!(
"[{}]: Error: {}\n",
cur_time.format("%d-%m-%Y %H:%M:%S").to_string(),
msg
)
.as_str()
.as_bytes(),
);
let _ = n.flush();
}
}
LogType::Log => {
let cur_time: DateTime<Local> = Local::now();
if let Some(n) = &self.term {
let _ = n.eprintln(format!(
"[{}]: {}",
cur_time.format("%d-%m-%Y %H:%M:%S").to_string(),
msg
));
}
if let Some(n) = &mut self.file {
let _ = n.write(
format!(
"[{}]: {}\n",
cur_time.format("%d-%m-%Y %H:%M:%S").to_string(),
msg
)
.as_str()
.as_bytes(),
);
let _ = n.flush();
}
}
}
}
}
#[macro_export]
macro_rules! msg {
($logger:expr, $($arg:expr),*) => {{
$logger.log(format!($($arg,)*), $crate::log::LogType::Log);
}};
}
#[macro_export]
macro_rules! warn {
($logger:expr, $($arg:expr),*) => {{
$logger.log(format!($($arg,)*), $crate::log::LogType::Warn);
}};
}
#[macro_export]
macro_rules! error {
($logger:expr, $($arg:expr),*) => {{
$logger.log(format!($($arg,)*), $crate::log::LogType::Error);
}};
}