// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2021 Alyssa Ross <hi@alyssa.is>

use super::{FileDiff, MakeDiff};

use std::sync::mpsc::{Receiver, SyncSender};

use git2::Repository;

pub fn main(
    repository: &Repository,
    receiver: Receiver<(impl MakeDiff, SyncSender<Result<FileDiff, git2::Error>>)>,
) {
    for (diff_maker, sender) in receiver {
        let diff = match diff_maker.make_diff(&repository) {
            Ok(diff) => diff,
            Err(e) => {
                let _ = sender.send(Err(e));
                return;
            }
        };

        if let Err(e) = diff.foreach(
            &mut |delta, _| {
                let _ = sender.send(Ok(FileDiff {
                    status: delta.status(),
                    old_path: delta.old_file().path().map(Into::into),
                }));

                true
            },
            None,
            None,
            None,
        ) {
            let _ = sender.send(Err(e));
        }
    }
}