use axum::Json;
use axum::extract::{Path, State};
use export::rest::AppResponseData;
use gitbaby::diff::types::RangeDiffSpec;
use session::Session;

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

#[utoipa::path(
    post,
    path = "/repos/{space_name}/{repo_name}/diff/range",
    tag = "diffs",
    params(crate::handler::RepoPath),
    request_body = String,
    responses(
        (status = 200, description = "range diff", body = AppResponseData<String>)
    )
)]
pub async fn range_diff(
    State(service): State<GitService>,
    session: Session,
    Path(path): Path<crate::handler::RepoPath>,
    Json(body): Json<RangeDiffSpec>,
) -> Result<AppResponseData<String>, ApiError> {
    let _ = resolve_reader(&service, &session, path.space_name.clone(), path.repo_name.clone()).await?;
    let out = service
        .range_diff(path.space_name, path.repo_name, body)
        .await
        .map_err(GitApiError::from)?;
    Ok(AppResponseData::ok(out))
}