package devcontainer

import (
	"bytes"
	"context"
	"regexp"

	"code.gitea.io/gitea/models/db"
	"code.gitea.io/gitea/models/repo"
	"code.gitea.io/gitea/models/user"
	files_service "code.gitea.io/gitea/services/repository/files"
)

func GetDevcontainerConfigurationString(ctx context.Context, repo *repo.Repository) (string, error) {
	configuration, err := GetFileContentByPath(ctx, repo, ".devcontainer/devcontainer.json")
	if err != nil {
		return "", err
	}
	cleanedContent, err := removeComments(configuration)
	if err != nil {
		return "", err
	}
	return cleanedContent, nil
}

// 移除 JSON 文件中的注释
func removeComments(data string) (string, error) {
	// 移除单行注释 // ...
	re := regexp.MustCompile(`//.*`)
	data = re.ReplaceAllString(data, "")

	// 移除多行注释 /* ... */
	re = regexp.MustCompile(`/\*.*?\*/`)
	data = re.ReplaceAllString(data, "")

	return data, nil
}

func UpdateDevcontainerConfiguration(newContent string, repo *repo.Repository, doer *user.User) error {
	// 更新devcontainer.json配置文件
	_, err := files_service.ChangeRepoFiles(db.DefaultContext, repo, doer, &files_service.ChangeRepoFilesOptions{
		Files: []*files_service.ChangeRepoFile{
			{
				Operation:     "update",
				TreePath:      ".devcontainer/devcontainer.json",
				ContentReader: bytes.NewReader([]byte(newContent)),
			},
		},
		OldBranch: repo.DefaultBranch,
		Message:   "Update container",
	})
	if err != nil {
		return err
	}
	return nil
}