use ::session::OptionalUser;
use api::http::{Path, Query, State};
use api::rest::AppResponseData;

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

#[utoipa::path(
    get,
    path = "/repos/{space_name}/{repo_name}/refs/branches",
    tag = "refs",
    description = "返回分支引用摘要及保护标记，供内部 Git 流程分页使用。",
    params(crate::handler::RepoPath, api::pagination::PageQuery),
    responses(
        (status = 200, description = "list branch refs", body = AppResponseData<api::pagination::Page<BranchInfoDto>>)
    )
)]
pub async fn refs_branches(
    State(service): State<GitService>,
    OptionalUser(viewer): OptionalUser,
    Path(path): Path<crate::handler::RepoPath>,
    Query(query): Query<api::pagination::PageQuery>,
) -> Result<AppResponseData<api::pagination::Page<BranchInfoDto>>, ApiError> {
    let (ctx, _) = handler::resolve_reader(
        &service,
        viewer,
        path.space_name.clone(),
        path.repo_name.clone(),
    )
    .await?;
    let (limit, offset) = query.bounds()?;
    let out = service
        .refs_branches(&ctx, limit, offset)
        .await
        .map_err(GitApiError::from)?;
    Ok(AppResponseData::ok(out))
}