use crate::pb::*;

use super::{GitksService, into_status, into_stream, resolve};

#[tonic::async_trait]
impl tree_service_server::TreeService for GitksService {
    type GetRawBlobStream =
        tokio_stream::wrappers::ReceiverStream<Result<GetRawBlobResponse, tonic::Status>>;

    async fn list_tree(
        &self,
        request: tonic::Request<ListTreeRequest>,
    ) -> Result<tonic::Response<ListTreeResponse>, tonic::Status> {
        let inner = request.into_inner();
        let gb = resolve(inner.repository.as_ref())?;
        let resp = gb.list_tree(inner).map_err(into_status)?;
        Ok(tonic::Response::new(resp))
    }

    async fn get_tree(
        &self,
        request: tonic::Request<GetTreeRequest>,
    ) -> Result<tonic::Response<Tree>, tonic::Status> {
        let inner = request.into_inner();
        let gb = resolve(inner.repository.as_ref())?;
        let resp = gb.get_tree(inner).map_err(into_status)?;
        Ok(tonic::Response::new(resp))
    }

    async fn get_blob(
        &self,
        request: tonic::Request<GetBlobRequest>,
    ) -> Result<tonic::Response<Blob>, tonic::Status> {
        let inner = request.into_inner();
        let gb = resolve(inner.repository.as_ref())?;
        let resp = gb.get_blob(inner).map_err(into_status)?;
        Ok(tonic::Response::new(resp))
    }

    async fn get_raw_blob(
        &self,
        request: tonic::Request<GetRawBlobRequest>,
    ) -> Result<tonic::Response<Self::GetRawBlobStream>, tonic::Status> {
        let inner = request.into_inner();
        let gb = resolve(inner.repository.as_ref())?;
        let items = gb.get_raw_blob(inner).map_err(into_status)?;
        Ok(tonic::Response::new(into_stream(items)))
    }

    async fn get_file_metadata(
        &self,
        request: tonic::Request<GetFileMetadataRequest>,
    ) -> Result<tonic::Response<FileMetadata>, tonic::Status> {
        let inner = request.into_inner();
        let gb = resolve(inner.repository.as_ref())?;
        let resp = gb.get_file_metadata(inner).map_err(into_status)?;
        Ok(tonic::Response::new(resp))
    }

    async fn find_files(
        &self,
        request: tonic::Request<FindFilesRequest>,
    ) -> Result<tonic::Response<FindFilesResponse>, tonic::Status> {
        let inner = request.into_inner();
        let gb = resolve(inner.repository.as_ref())?;
        let resp = gb.find_files(inner).map_err(into_status)?;
        Ok(tonic::Response::new(resp))
    }
}