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// Back - An extremely simple git issue tracking system. Inspired by tvix's
// panettone
//
// Copyright (C) 2024 Benedikt Peetz <benedikt.peetz@b-peetz.de>
// SPDX-License-Identifier: AGPL-3.0-or-later
//
// This file is part of Back.
//
// You should have received a copy of the License along with this program.
// If not, see <https://www.gnu.org/licenses/agpl.txt>.

use std::{env::args, path::PathBuf, process, sync::OnceLock};

use gix::ThreadSafeRepository;
use rocket::{launch, routes};

use crate::issues::{closed, open, show_issue, styles};

mod issues;

static REPOSITORY: OnceLock<ThreadSafeRepository> = OnceLock::new();

#[launch]
fn rocket() -> _ {
    let repository_path = {
        let maybe_path = args().skip(1).rev().last();
        if let Some(path) = maybe_path {
            PathBuf::from(path)
        } else {
            eprintln!("Usage: back <issue repoitory>");
            process::exit(1);
        }
    };

    REPOSITORY
        .set(
            ThreadSafeRepository::open(&repository_path).unwrap_or_else(|err| {
                eprintln!(
                    "Error while opening repository ('{}'): {} ",
                    repository_path.display(),
                    err
                );
                process::exit(1);
            }),
        )
        .expect("There should be only one thread accessing this right now");

    rocket::build().mount("/", routes![open, closed, show_issue, styles])
}