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use tracing_subscriber::layer::SubscriberExt;
use tracing_subscriber::{fmt, EnvFilter};

//
// Wildland Project
//
// Copyright © 2022 Golem Foundation
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License version 3 as published by
// the Free Software Foundation.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program.  If not, see <https://www.gnu.org/licenses/>.

pub fn init_subscriber() -> anyhow::Result<()> {
    let file_appender = tracing_appender::rolling::daily("logs", "wl-devshell.debuglog");

    let subscriber = tracing_subscriber::registry()
        .with(EnvFilter::from_default_env())
        .with(
            fmt::Layer::new()
                .with_file(false)
                .with_line_number(true)
                .with_ansi(false)
                .with_writer(file_appender),
        );

    tracing::subscriber::set_global_default(subscriber)
        .expect("Unable to set a global logger instance"); // unrecoverable
    tracing::info!("logger initialized");
    tracing::info!("===========================================================");
    tracing::info!("GIT_BRANCH: {}", env!("GIT_BRANCH"));
    tracing::info!("GIT_HASH: {}", env!("GIT_HASH"));
    tracing::info!("===========================================================");
    Ok(())
}