import 'package:flutter/material.dart';
import 'package:provider/provider.dart';

import '../../l10n/app_localizations.dart';
import '../../viewmodels/bar_screen_view_model.dart';
import 'duplicate_tab_name_dialog.dart';

/// Returns the name of the opened tab, or null when nothing was opened.
Future<String?> showNewTabDialog(BuildContext context) async {
  final l10n = AppLocalizations.of(context);
  final controller = TextEditingController();

  final name = await showDialog<String>(
    context: context,
    builder: (dialogContext) {
      return AlertDialog(
        title: Text(l10n.openNewTab),
        content: TextField(
          controller: controller,
          autofocus: true,
          decoration: InputDecoration(labelText: l10n.customerGroupName),
          onSubmitted: (value) {
            Navigator.of(dialogContext).pop(value);
          },
        ),
        actionsPadding: const EdgeInsets.fromLTRB(16, 0, 16, 16),
        actions: [
          TextButton(
            onPressed: () => Navigator.of(dialogContext).pop(),
            child: Text(l10n.cancel),
          ),
          FilledButton(
            onPressed: () {
              Navigator.of(dialogContext).pop(controller.text);
            },
            child: Text(l10n.openTab),
          ),
        ],
      );
    },
  );

  final trimmed = name?.trim() ?? '';
  if (trimmed.isEmpty || !context.mounted) return null;

  final viewModel = context.read<BarScreenViewModel>();
  if (viewModel.hasOpenTabNamed(trimmed) &&
      !await confirmDuplicateTabName(context, trimmed)) {
    return null;
  }

  try {
    await viewModel.createTab(trimmed);
    return trimmed;
  } catch (_) {
    if (context.mounted) {
      ScaffoldMessenger.of(
        context,
      ).showSnackBar(SnackBar(content: Text(l10n.couldNotCreateTabMessage)));
    }
    return null;
  }
}