use std::io::Write;

use tracing::info;

pub(crate) fn init() {
    let file_name = "git-next-server.toml";
    let path = std::path::Path::new(file_name);
    if path.exists() {
        eprintln!(
            "The configuration file already exists at {} - not overwritting it.",
            file_name
        );
    } else {
        match std::fs::File::create(file_name) {
            Ok(mut file) => {
                println!("Created a default configuration file at {}", file_name);
                match file.write_all(include_bytes!("../server-default.toml")) {
                    Ok(_) => println!("Wrote to the configuration file successfully."),
                    Err(e) => {
                        eprintln!("Failed to write to the configuration file: {}", e)
                    }
                }
            }
            Err(e) => {
                eprintln!("Failed to create a default configuration file: {}", e);
            }
        }
    }
}

pub(crate) fn start() {
    let Ok(_) = init_logging() else {
        eprintln!("Failed to initialize logging.");
        return;
    };
    info!("Starting Server...");
    // todo!()
}

pub fn init_logging() -> Result<(), tracing::subscriber::SetGlobalDefaultError> {
    use tracing_subscriber::prelude::*;

    let console_layer = console_subscriber::ConsoleLayer::builder().spawn();

    let subscriber = tracing_subscriber::fmt::layer()
        // NOTE: set RUSTLOG in ${root}/.cargo/config
        .with_target(false)
        .with_file(true)
        .with_line_number(true);
    tracing_subscriber::registry()
        .with(console_layer)
        .with(subscriber)
        .init();
    Ok(())
}