[Sugestão] Criação de uma função para exibir as SnackBars em um arquivo a parte

Como minhas SnackBar estavam deixando o código muito repetitivo, fiz uma função a parte para elas:

01º Criei uma enum na pasta models para tipá-las e chamei de custom_snackbar_enum.dart:

enum CustomSnackBarTypes {
  success,
  error
}

02º Criei o componente dentro da pasta widgets, da home_screen, chamado custom_snackbar.dart:

import 'package:api_project/models/custom_snackbar_enum.dart';
import 'package:flutter/material.dart';

showCustomSnackBar({
  required BuildContext context,
  required CustomSnackBarTypes type,
  required String content,
}) {
  if (type == CustomSnackBarTypes.success) {
    ScaffoldMessenger.of(context).showSnackBar(
      SnackBar(
        content: Row(
          mainAxisAlignment: MainAxisAlignment.spaceBetween,
          children: [
            Text(content),
            const Icon(
              Icons.done,
              color: Colors.white,
            )
          ],
        ),
        backgroundColor: Colors.green,
        duration: const Duration(milliseconds: 1500),
      ),
    );
  } else {
    ScaffoldMessenger.of(context).showSnackBar(
      SnackBar(
        content: Row(
          mainAxisAlignment: MainAxisAlignment.spaceBetween,
          children: [
            Text(content),
            const Icon(
              Icons.warning,
              color: Colors.white,
            )
          ],
        ),
        backgroundColor: Colors.red,
        duration: const Duration(milliseconds: 1500),
      ),
    );
  }
}

03º Por fim, chamei essa função showCustomSnackBar nas funções callAddJournalScreen e removeJournal do journal_card.dart:

callAddJournalScreen(BuildContext context, {Journal? journal}) {
    Journal innerJournal = Journal(
      id: const Uuid().v1(),
      content: '',
      createdAt: showedDate,
      updatedAt: showedDate,
    );

    Map<String, dynamic> map = {};

    if (journal != null) {
      innerJournal = journal;

      map['is_editing'] = true;
    } else {
      map['is_editing'] = false;
    }

    map['journal'] = innerJournal;

    Navigator.pushNamed(
      context,
      'add-journal',
      arguments: map,
    ).then((result) {
      if (result != null && result == true) {
        showCustomSnackBar(
          context: context,
          type: CustomSnackBarTypes.success,
          content: 'Journal saved successfully...',
        );
      } else {
        showCustomSnackBar(
          context: context,
          type: CustomSnackBarTypes.error,
          content: 'Error on adding Journal...',
        );
      }

      refreshFunction();
    });
  }

  removeJournal(BuildContext context) {
    if (journal != null) {
      JournalService journalService = JournalService();

      journalService.delete(journal!.id).then(
        (value) {
          if (value) {
            showCustomSnackBar(
              context: context,
              type: CustomSnackBarTypes.success,
              content: 'Journal removed successfully...',
            );

            refreshFunction();
          } else {
            showCustomSnackBar(
              context: context,
              type: CustomSnackBarTypes.error,
              content: 'Error on removing Journal...',
            );
          }
        },
      );
    }
  }