use crate::rpcgit::refs::types::RefInfo;
use ::session::OptionalUser;
use api::http::{Path, State};
use api::rest::AppResponseData;

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

#[derive(Debug, Clone, serde::Deserialize, utoipa::IntoParams)]
pub struct RefPath {
    pub space_name: String,
    pub repo_name: String,
    pub name: String,
}

#[utoipa::path(
    get,
    path = "/repos/{space_name}/{repo_name}/refs/{name}",
    tag = "refs",
    description = "按引用名称读取单个 Git 引用。",
    params(RefPath),
    responses(
        (status = 200, description = "get ref")
    )
)]
pub async fn refs_get(
    State(service): State<GitService>,
    OptionalUser(viewer): OptionalUser,
    Path(path): Path<RefPath>,
) -> Result<AppResponseData<RefInfo>, ApiError> {
    let (ctx, _) = handler::resolve_reader(
        &service,
        viewer,
        path.space_name.clone(),
        path.repo_name.clone(),
    )
    .await?;
    let out = service
        .refs_get(&ctx, path.name)
        .await
        .map_err(GitApiError::from)?;
    Ok(AppResponseData::ok(out))
}