480 lines
19 KiB
Dart
480 lines
19 KiB
Dart
import 'dart:io' show File, Platform;
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import 'package:flutter/foundation.dart' show kIsWeb;
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import 'package:flutter/material.dart';
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import 'package:flutter/services.dart' show rootBundle;
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import 'package:file_picker/file_picker.dart';
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import 'package:go_router/go_router.dart';
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import 'package:path_provider/path_provider.dart';
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import 'package:qpay/screens/groups/controllers/group_controller.dart';
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import 'package:qpay/screens/groups/models/create_group_from_file_response.dart';
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import 'package:qpay/models/responsive_policy.dart';
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import 'package:qpay/widgets/app_snack_bar.dart';
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import 'package:shared_preferences/shared_preferences.dart';
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import 'package:url_launcher/url_launcher.dart';
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class CreateGroupFromFileScreen extends StatefulWidget {
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const CreateGroupFromFileScreen({super.key});
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@override
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State<CreateGroupFromFileScreen> createState() =>
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_CreateGroupFromFileScreenState();
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}
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class _CreateGroupFromFileScreenState extends State<CreateGroupFromFileScreen> {
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late GroupController controller;
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final _formKey = GlobalKey<FormState>();
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final _groupNameController = TextEditingController();
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final _descriptionController = TextEditingController();
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String _currency = 'USD';
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List<int>? _fileBytes;
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String? _selectedFileName;
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@override
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void initState() {
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super.initState();
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controller = GroupController(context);
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}
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@override
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void dispose() {
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_groupNameController.dispose();
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_descriptionController.dispose();
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controller.dispose();
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super.dispose();
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}
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Future<void> _downloadTemplate() async {
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try {
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final bytes = await rootBundle.load('assets/group-batch-example.csv');
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final data = bytes.buffer.asUint8List();
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if (kIsWeb) {
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// Web: use url_launcher with a data URI
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final uri = Uri.dataFromString(
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String.fromCharCodes(data),
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mimeType: 'text/csv',
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encoding: null,
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);
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await launchUrl(uri, mode: LaunchMode.platformDefault);
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} else {
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// Mobile/desktop: write to temp file and open with url_launcher
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final dir = Platform.isAndroid
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? await getTemporaryDirectory()
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: await getApplicationDocumentsDirectory();
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final file = File('${dir.path}/group-batch-example.csv');
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await file.writeAsBytes(data);
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final fileUri = Uri.file(file.path);
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if (await canLaunchUrl(fileUri)) {
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await launchUrl(fileUri, mode: LaunchMode.externalApplication);
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} else {
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throw Exception('Cannot open file');
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}
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}
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} catch (e) {
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if (mounted) {
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AppSnackBar.showError(context, 'Failed to download template: $e');
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}
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}
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}
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Future<void> _pickFile() async {
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final result = await FilePicker.pickFiles(
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type: FileType.custom,
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allowedExtensions: ['csv'],
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withData: true,
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);
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if (result != null && result.files.isNotEmpty) {
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final file = result.files.first;
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if (file.bytes != null) {
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setState(() {
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_fileBytes = file.bytes;
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_selectedFileName = file.name;
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});
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}
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}
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}
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Future<void> _submit() async {
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if (!_formKey.currentState!.validate()) return;
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if (_fileBytes == null || _selectedFileName == null) {
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AppSnackBar.show(context, 'Please select a CSV file to upload.');
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return;
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}
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final prefs = await SharedPreferences.getInstance();
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final workspaceId = prefs.getString('workspaceId') ?? '';
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final userId = prefs.getString('userId') ?? '';
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final result = await controller.createGroupFromFile(
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groupName: _groupNameController.text.trim(),
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workspaceId: workspaceId,
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userId: userId,
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description: _descriptionController.text.trim().isEmpty
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? null
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: _descriptionController.text.trim(),
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currency: _currency,
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fileBytes: _fileBytes!,
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fileName: _selectedFileName!,
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);
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if (!mounted) return;
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if (result.isSuccess) {
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final response = result.data!;
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if (response.isSuccess && response.batch != null) {
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final batch = response.batch!;
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final groupId = batch.recipientGroupId ?? '';
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AppSnackBar.showSuccess(
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context,
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'Group & batch created successfully. '
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'${response.successCount} of ${response.totalRows} rows processed.',
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);
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if (groupId.isNotEmpty && batch.id != null) {
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context.pushReplacement('/groups/batches/${batch.id}');
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}
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} else {
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// Partial failure — show errors
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_showErrorsBottomSheet(response);
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}
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} else {
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AppSnackBar.showError(
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context,
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result.error ?? 'Failed to create group from file.',
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);
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}
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}
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void _showErrorsBottomSheet(CreateGroupFromFileResponse response) {
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final isDark = Theme.of(context).brightness == Brightness.dark;
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showModalBottomSheet(
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context: context,
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isScrollControlled: true,
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backgroundColor: Colors.transparent,
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builder: (sheetContext) {
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return Container(
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decoration: BoxDecoration(
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color: isDark ? const Color(0xFF1A1A2E) : Colors.white,
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borderRadius: const BorderRadius.vertical(top: Radius.circular(24)),
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),
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padding: const EdgeInsets.fromLTRB(20, 12, 20, 24),
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child: Column(
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mainAxisSize: MainAxisSize.min,
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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Center(
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child: Container(
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width: 40,
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height: 4,
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margin: const EdgeInsets.only(bottom: 16),
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decoration: BoxDecoration(
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color: Colors.grey.shade300,
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borderRadius: BorderRadius.circular(2),
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),
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),
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),
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Row(
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children: [
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Icon(
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Icons.warning_amber_rounded,
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color: Colors.orange.shade700,
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size: 24,
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),
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const SizedBox(width: 10),
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Text(
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'Upload completed with errors',
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style: TextStyle(
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fontSize: 18,
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fontWeight: FontWeight.w700,
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color: isDark ? Colors.white : Colors.black87,
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),
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),
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],
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),
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const SizedBox(height: 8),
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Text(
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'${response.errorCount} of ${response.totalRows} rows failed. '
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'${response.successCount} rows succeeded.',
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style: TextStyle(fontSize: 13, color: Colors.grey.shade600),
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),
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const SizedBox(height: 16),
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if (response.errors.isNotEmpty) ...[
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Flexible(
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child: ConstrainedBox(
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constraints: BoxConstraints(
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maxHeight: MediaQuery.of(sheetContext).size.height * 0.4,
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),
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child: ListView.separated(
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shrinkWrap: true,
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itemCount: response.errors.length,
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separatorBuilder: (_, __) => const Divider(height: 1),
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itemBuilder: (_, index) {
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final error = response.errors[index];
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return ListTile(
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dense: true,
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contentPadding: EdgeInsets.zero,
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leading: CircleAvatar(
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radius: 14,
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backgroundColor: Colors.red.shade50,
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child: Text(
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'${error.lineNumber}',
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style: TextStyle(
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fontSize: 11,
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fontWeight: FontWeight.w700,
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color: Colors.red.shade700,
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),
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),
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),
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title: Text(
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error.name.isNotEmpty
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? '${error.name} (${error.account})'
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: error.account,
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style: const TextStyle(
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fontSize: 13,
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fontWeight: FontWeight.w600,
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),
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),
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subtitle: Text(
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error.message,
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style: TextStyle(
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fontSize: 12,
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color: Colors.grey.shade600,
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),
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),
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);
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},
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),
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),
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),
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const SizedBox(height: 16),
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],
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SizedBox(
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width: double.infinity,
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child: ElevatedButton(
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onPressed: () => Navigator.of(sheetContext).pop(),
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style: ElevatedButton.styleFrom(
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padding: const EdgeInsets.symmetric(vertical: 14),
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shape: RoundedRectangleBorder(
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borderRadius: BorderRadius.circular(14),
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),
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),
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child: const Text('Dismiss'),
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),
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),
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],
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),
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);
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},
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);
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}
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@override
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Widget build(BuildContext context) {
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return Scaffold(
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appBar: AppBar(title: const Text('Create from File'), centerTitle: true),
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body: ListenableBuilder(
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listenable: controller,
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builder: (context, _) {
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return Center(
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child: LayoutBuilder(
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builder: (context, constraints) {
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final width = constraints.maxWidth > ResponsivePolicy.md
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? ResponsivePolicy.md.toDouble()
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: constraints.maxWidth;
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return SizedBox(
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width: width,
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child: SingleChildScrollView(
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padding: const EdgeInsets.all(20),
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child: Form(
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key: _formKey,
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.stretch,
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children: [
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TextFormField(
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controller: _groupNameController,
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textInputAction: TextInputAction.next,
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decoration: InputDecoration(
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labelText: 'Group Name',
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border: OutlineInputBorder(
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borderRadius: BorderRadius.circular(12),
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),
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),
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validator: (v) => (v == null || v.trim().isEmpty)
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? 'Group name is required'
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: null,
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),
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const SizedBox(height: 16),
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TextFormField(
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controller: _descriptionController,
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textInputAction: TextInputAction.next,
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decoration: InputDecoration(
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labelText: 'Description (optional)',
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border: OutlineInputBorder(
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borderRadius: BorderRadius.circular(12),
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),
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),
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),
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const SizedBox(height: 16),
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DropdownButtonFormField<String>(
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initialValue: _currency,
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decoration: InputDecoration(
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labelText: 'Currency',
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border: OutlineInputBorder(
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borderRadius: BorderRadius.circular(12),
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),
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),
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items: const [
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DropdownMenuItem(
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value: 'USD',
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child: Text('USD'),
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),
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DropdownMenuItem(
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value: 'ZWG',
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child: Text('ZWG'),
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),
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],
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onChanged: (v) {
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if (v != null) setState(() => _currency = v);
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},
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),
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const SizedBox(height: 24),
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Text(
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'Recipients File',
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style: TextStyle(
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fontSize: 16,
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fontWeight: FontWeight.w600,
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color: Colors.grey.shade800,
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),
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),
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const SizedBox(height: 4),
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Text(
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'Upload a CSV file with columns: name, account, amount, billProductName',
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style: TextStyle(
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fontSize: 13,
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color: Colors.grey.shade600,
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),
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),
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const SizedBox(height: 12),
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InkWell(
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onTap: _pickFile,
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borderRadius: BorderRadius.circular(12),
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child: Container(
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padding: const EdgeInsets.all(20),
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decoration: BoxDecoration(
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border: Border.all(
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color: _fileBytes != null
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? Theme.of(context).colorScheme.primary
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: Colors.grey.shade300,
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width: 1.5,
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style: BorderStyle.solid,
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),
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borderRadius: BorderRadius.circular(12),
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color: _fileBytes != null
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? Theme.of(
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context,
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).colorScheme.primary.withAlpha(12)
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: Colors.grey.shade50,
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),
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child: Column(
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children: [
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Icon(
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_fileBytes != null
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? Icons.insert_drive_file
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: Icons.cloud_upload_outlined,
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size: 40,
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color: _fileBytes != null
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? Theme.of(context).colorScheme.primary
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: Colors.grey.shade400,
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),
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const SizedBox(height: 8),
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Text(
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_selectedFileName ??
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'Tap to select CSV file',
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style: TextStyle(
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fontSize: 14,
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fontWeight: FontWeight.w500,
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color: _fileBytes != null
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? Theme.of(
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context,
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).colorScheme.primary
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: Colors.grey.shade600,
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),
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textAlign: TextAlign.center,
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),
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if (_fileBytes == null) ...[
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const SizedBox(height: 4),
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Text(
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'Accepted format: .csv',
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style: TextStyle(
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fontSize: 12,
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color: Colors.grey.shade500,
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),
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),
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],
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],
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),
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),
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),
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const SizedBox(height: 8),
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Align(
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alignment: Alignment.centerLeft,
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child: TextButton.icon(
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onPressed: _downloadTemplate,
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icon: const Icon(
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Icons.download_rounded,
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size: 18,
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),
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label: const Text('Download Template'),
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style: TextButton.styleFrom(
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padding: const EdgeInsets.symmetric(
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horizontal: 12,
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vertical: 4,
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),
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visualDensity: VisualDensity.compact,
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),
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),
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),
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const SizedBox(height: 32),
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ElevatedButton(
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onPressed: controller.model.isLoading
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? null
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: _submit,
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style: ElevatedButton.styleFrom(
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padding: const EdgeInsets.symmetric(vertical: 16),
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shape: RoundedRectangleBorder(
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borderRadius: BorderRadius.circular(12),
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),
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),
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child: controller.model.isLoading
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? const SizedBox(
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height: 20,
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width: 20,
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child: CircularProgressIndicator(
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strokeWidth: 2,
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color: Colors.white,
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),
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)
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: const Text(
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'Upload & Create',
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style: TextStyle(fontSize: 16),
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),
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),
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],
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),
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),
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),
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);
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},
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),
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);
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},
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),
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);
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}
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}
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