// Copyright 2023 Harness, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package service

import (
	"context"

	"github.com/harness/gitness/gitrpc/internal/types"
	"github.com/harness/gitness/gitrpc/rpc"
)

func (s RepositoryService) GetSubmodule(ctx context.Context,
	request *rpc.GetSubmoduleRequest) (*rpc.GetSubmoduleResponse, error) {
	base := request.GetBase()
	if base == nil {
		return nil, types.ErrBaseCannotBeEmpty
	}

	repoPath := getFullPathForRepo(s.reposRoot, base.GetRepoUid())
	// TODO: do we need to validate request for nil?
	gitSubmodule, err := s.adapter.GetSubmodule(ctx, repoPath, request.GetGitRef(), request.GetPath())
	if err != nil {
		return nil, processGitErrorf(err, "failed to get submodule")
	}

	return &rpc.GetSubmoduleResponse{
		Submodule: &rpc.Submodule{
			Name: gitSubmodule.Name,
			Url:  gitSubmodule.URL,
		},
	}, nil
}