tansu-storage 0.6.0

// Copyright ⓒ 2024-2025 Peter Morgan <peter.james.morgan@gmail.com>
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

use std::{fmt, io, sync::Arc};

use dotenv::dotenv;
use tracing::subscriber::DefaultGuard;
use tracing_subscriber::{EnvFilter, filter::ParseError};

#[derive(Clone, Debug, thiserror::Error)]
pub(crate) enum Error {
    #[allow(dead_code)]
    Io(Arc<io::Error>),

    #[allow(dead_code)]
    Message(String),

    #[allow(dead_code)]
    ParseFilter(Arc<ParseError>),

    Parse(#[from] url::ParseError),

    Protocol(#[from] tansu_sans_io::Error),
    Storage(#[from] tansu_storage::Error),
}

impl fmt::Display for Error {
    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
        write!(f, "{self:?}")
    }
}

impl From<io::Error> for Error {
    fn from(value: io::Error) -> Self {
        Self::Io(Arc::new(value))
    }
}

impl From<ParseError> for Error {
    fn from(value: ParseError) -> Self {
        Self::ParseFilter(Arc::new(value))
    }
}

pub(crate) fn init_tracing() -> Result<DefaultGuard, Error> {
    use std::{fs::File, sync::Arc, thread};

    _ = dotenv().ok();

    Ok(tracing::subscriber::set_default(
        tracing_subscriber::fmt()
            .with_level(true)
            .with_line_number(true)
            .with_thread_names(false)
            .with_env_filter(
                EnvFilter::from_default_env()
                    .add_directive(format!("{}=debug", env!("CARGO_CRATE_NAME")).parse()?),
            )
            .with_writer(
                thread::current()
                    .name()
                    .ok_or(Error::Message(String::from("unnamed thread")))
                    .and_then(|name| {
                        File::create(format!(
                            "../logs/{}/{}::{name}.log",
                            env!("CARGO_PKG_NAME"),
                            env!("CARGO_CRATE_NAME")
                        ))
                        .map_err(Into::into)
                    })
                    .map(Arc::new)?,
            )
            .finish(),
    ))
}