// 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 adapter

import (
	"context"
	"fmt"
	"strings"

	"github.com/harness/gitness/errors"

	gitea "code.gitea.io/gitea/modules/git"
)

func (a Adapter) ResolveRev(ctx context.Context,
	repoPath string,
	rev string,
) (string, error) {
	args := []string{"rev-parse", rev}
	commitSHA, stdErr, err := gitea.NewCommand(ctx, args...).RunStdString(&gitea.RunOpts{Dir: repoPath})
	if strings.Contains(stdErr, "ambiguous argument") {
		return "", errors.InvalidArgument("could not resolve git revision: %s", rev)
	}
	if err != nil {
		return "", fmt.Errorf("failed to resolve git revision: %w", err)
	}

	commitSHA = strings.TrimSpace(commitSHA)

	return commitSHA, nil
}