mrutils

var GetMRForBranch = func(ctx context.Context, ios *iostreams.IOStreams, apiClient *gitlab.Client, mrOpts MrOptions) (*gitlab.BasicMergeRequest, error) {
	owner, currentBranch := resolveOwnerAndBranch(mrOpts.Branch)

	opts := gitlab.ListProjectMergeRequestsOptions{
		SourceBranch: gitlab.Ptr(currentBranch),
	}

	userAskedForSpecificState := mrOpts.State != "" && mrOpts.State != "any"
	if userAskedForSpecificState {
		opts.State = gitlab.Ptr(mrOpts.State)
	}

	mrs, err := api.ListMRs(apiClient, mrOpts.BaseRepo.FullName(), &opts)
	if err != nil {
		return nil, fmt.Errorf("failed to get open merge request for %q: %w", currentBranch, err)
	}

	if len(mrs) == 0 {
		return nil, fmt.Errorf("no open merge request available for %q", currentBranch)
	}

	userAskedForSpecificOwner := owner != ""
	if userAskedForSpecificOwner {
		for i := range mrs {
			mr := mrs[i]
			matchFound := mr.Author.Username == owner
			if matchFound {
				return mr, nil
			}
		}
		return nil, fmt.Errorf("no open merge request available for %q owned by @%s", currentBranch, owner)
	}

	if len(mrs) == 1 {
		return mrs[0], nil
	}

	mrMap := map[string]*gitlab.BasicMergeRequest{}
	var mrNames []string
	for i := range mrs {
		t := fmt.Sprintf("!%d (%s) by @%s", mrs[i].IID, currentBranch, mrs[i].Author.Username)
		mrMap[t] = mrs[i]
		mrNames = append(mrNames, t)
	}
	pickedMR := mrNames[0]

	if !mrOpts.PromptEnabled {

		err = fmt.Errorf("merge request ID number required. Possible matches:\n\n%s", strings.Join(mrNames, "\n"))
	} else {
		err = ios.Select(ctx, &pickedMR, multipleMRSelectQuestion, mrNames)
	}
	if err != nil {
		return nil, fmt.Errorf("you must select a merge request: %w", err)
	}

	return mrMap[pickedMR], nil
}