use std::env::current_dir;

use git2::Repository;

#[derive(Debug)]
pub struct GitCommit {
    pub commit_sha: String,
}

impl GitCommit {
    pub fn new() -> anyhow::Result<GitCommit> {
        let repo = Repository::open(current_dir().expect("having current_dir available")).map_err(
            |e| {
                log::debug!("{}", e);
                anyhow::anyhow!("could not open repository")
            },
        )?;
        let head_ref = repo
            .head()
            .map_err(|e| {
                log::warn!("{}", e);
                anyhow::anyhow!("could not get HEAD")
            })?
            .target()
            .ok_or(anyhow::anyhow!(
                "could not extract head -> target to commit_sha"
            ))?;

        Ok(Self {
            commit_sha: head_ref.to_string(),
        })
    }
}