//
use crate::{git, git::repository::open::OpenRepositoryLike, BranchName};

#[derive(Clone, Debug, PartialEq, Eq)]
pub enum Force {
    No,
    From(git::GitRef),
}
impl std::fmt::Display for Force {
    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
        match self {
            Self::No => write!(f, "fast-forward"),
            Self::From(from) => write!(f, "force-if-from:{from}"),
        }
    }
}

pub type Result<T> = core::result::Result<T, Error>;

#[derive(Debug, thiserror::Error)]
pub enum Error {
    #[error("io")]
    Io(#[from] std::io::Error),

    #[error("network: {0}")]
    Network(#[from] kxio::network::NetworkError),

    #[error("fetch: {0}")]
    Fetch(#[from] git::fetch::Error),

    #[error("lock")]
    Lock,

    #[error("gix open: {0}")]
    Open(#[from] Box<gix::open::Error>),

    #[error("gix iter: {0}")]
    GixIter(#[from] gix::reference::iter::Error),

    #[error("gix iter init: {0}")]
    GixIterInit(#[from] gix::reference::iter::init::Error),

    #[cfg(test)]
    #[error("test")]
    TestResult(#[from] Box<dyn std::error::Error>),
}

/// Resets the position of a branch in the remote repo
///
/// Performs a 'git fetch' first to ensure we have up-to-date branch positions before
/// performing `git push`.
///
/// # Errors
///
/// Will return an `Err` if their is no remote fetch defined in .git/config, or
/// if there are any network connectivity issues with the remote server.
pub fn reset(
    open_repository: &dyn OpenRepositoryLike,
    repo_details: &git::RepoDetails,
    branch_name: &BranchName,
    to_commit: &git::GitRef,
    force: &git::push::Force,
) -> Result<()> {
    open_repository.fetch()?;
    open_repository.push(repo_details, branch_name, to_commit, force)
}