use ::session::Session;
use export::http::{Path, State};
use export::rest::AppResponseData;

use crate::errors::{ApiError, GitApiError};
use crate::handler;
use crate::service::GitService;
use crate::service::refs::HeadInfoDto;

#[utoipa::path(
    get,
    path = "/repos/{space_name}/{repo_name}/refs/head",
    tag = "refs",
    description = "读取 HEAD 所指向的默认分支及其目标提交。",
    params(crate::handler::RepoPath),
    responses(
        (status = 200, description = "get head ref", body = AppResponseData<HeadInfoDto>)
    )
)]
pub async fn refs_head(
    State(service): State<GitService>,
    session: Session,
    Path(path): Path<crate::handler::RepoPath>,
) -> Result<AppResponseData<HeadInfoDto>, ApiError> {
    let (ctx, _) = handler::resolve_reader(
        &service,
        &session,
        path.space_name.clone(),
        path.repo_name.clone(),
    )
    .await?;
    let out = service.refs_head(&ctx).await.map_err(GitApiError::from)?;
    Ok(AppResponseData::ok(out))
}