use std::io;
use tracing::level_filters::LevelFilter;
use tracing_appender::rolling::{RollingFileAppender, Rotation};
use tracing_subscriber::{fmt, layer::SubscriberExt, prelude::*};

use super::util::VAR_LOG;

pub fn log_init() {
    let log_appender = RollingFileAppender::builder()
        .rotation(Rotation::DAILY)
        .filename_prefix("mk-dl-bot.log")
        .max_log_files(7)
        .build(VAR_LOG)
        .unwrap();

    let stderr_layer = fmt::layer()
        .with_writer(io::stderr)
        .with_filter(LevelFilter::ERROR);

    let file_layer = fmt::layer()
        .with_writer(log_appender)
        .with_filter(LevelFilter::INFO);

    tracing_subscriber::registry()
        .with(stderr_layer)
        .with(file_layer)
        .init();
}