feat(mobile): implement centralized error handling and project cleanup

- Implemented centralized error handling system (#377)
- Unified UIErrorSnackbar and BlocErrorHandler mixin
- Migrated ClientAuthBloc and ClientHubsBloc
- Consolidated documentation
- Addresses Mobile Apps: Project Cleanup (#378)
This commit is contained in:
2026-02-05 15:35:35 +05:30
parent 6dc700f226
commit 3924801f70
11 changed files with 783 additions and 213 deletions

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@@ -10,3 +10,5 @@ export 'src/widgets/ui_step_indicator.dart';
export 'src/widgets/ui_icon_button.dart';
export 'src/widgets/ui_button.dart';
export 'src/widgets/ui_chip.dart';
export 'src/widgets/ui_error_snackbar.dart';
export 'src/widgets/ui_success_snackbar.dart';

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@@ -0,0 +1,200 @@
import 'package:flutter/material.dart';
import 'package:krow_core_localization/krow_core_localization.dart';
import '../ui_colors.dart';
import '../ui_typography.dart';
/// Centralized error snackbar for consistent error presentation across the app.
///
/// This widget automatically resolves localization keys and displays
/// user-friendly error messages with optional error codes for support.
///
/// Usage:
/// ```dart
/// UiErrorSnackbar.show(
/// context,
/// messageKey: 'errors.auth.invalid_credentials',
/// errorCode: 'AUTH_001',
/// );
/// ```
class UiErrorSnackbar {
/// Shows an error snackbar with a localized message.
///
/// [messageKey] should be a dot-separated path like 'errors.auth.invalid_credentials'
/// [errorCode] is optional and will be shown in smaller text for support reference
/// [duration] controls how long the snackbar is visible
static void show(
BuildContext context, {
required String messageKey,
String? errorCode,
Duration duration = const Duration(seconds: 4),
}) {
final texts = Texts.of(context);
final message = _getMessageFromKey(texts, messageKey);
ScaffoldMessenger.of(context).showSnackBar(
SnackBar(
content: Row(
children: [
Icon(Icons.error_outline, color: UiColors.white),
const SizedBox(width: 12),
Expanded(
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
mainAxisSize: MainAxisSize.min,
children: [
Text(
message,
style: UiTypography.body2m.copyWith(color: UiColors.white),
),
if (errorCode != null) ...[
const SizedBox(height: 4),
Text(
'Error Code: $errorCode',
style: UiTypography.footnote2r.copyWith(
color: UiColors.white.withOpacity(0.7),
),
),
],
],
),
),
],
),
backgroundColor: UiColors.error,
behavior: SnackBarBehavior.floating,
duration: duration,
shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(8)),
margin: const EdgeInsets.all(16),
),
);
}
/// Resolves a localization key path to the actual translated message.
///
/// Supports keys like:
/// - errors.auth.invalid_credentials
/// - errors.hub.has_orders
/// - errors.generic.unknown
static String _getMessageFromKey(Texts texts, String key) {
// Parse key like "errors.auth.invalid_credentials"
final parts = key.split('.');
if (parts.length < 2) return texts.errors.generic.unknown;
try {
switch (parts[1]) {
case 'auth':
return _getAuthError(texts, parts.length > 2 ? parts[2] : '');
case 'hub':
return _getHubError(texts, parts.length > 2 ? parts[2] : '');
case 'order':
return _getOrderError(texts, parts.length > 2 ? parts[2] : '');
case 'profile':
return _getProfileError(texts, parts.length > 2 ? parts[2] : '');
case 'shift':
return _getShiftError(texts, parts.length > 2 ? parts[2] : '');
case 'generic':
return _getGenericError(texts, parts.length > 2 ? parts[2] : '');
default:
return texts.errors.generic.unknown;
}
} catch (_) {
return texts.errors.generic.unknown;
}
}
static String _getAuthError(Texts texts, String key) {
switch (key) {
case 'invalid_credentials':
return texts.errors.auth.invalid_credentials;
case 'account_exists':
return texts.errors.auth.account_exists;
case 'session_expired':
return texts.errors.auth.session_expired;
case 'user_not_found':
return texts.errors.auth.user_not_found;
case 'unauthorized_app':
return texts.errors.auth.unauthorized_app;
case 'weak_password':
return texts.errors.auth.weak_password;
case 'sign_up_failed':
return texts.errors.auth.sign_up_failed;
case 'sign_in_failed':
return texts.errors.auth.sign_in_failed;
case 'not_authenticated':
return texts.errors.auth.not_authenticated;
case 'password_mismatch':
return texts.errors.auth.password_mismatch;
case 'google_only_account':
return texts.errors.auth.google_only_account;
default:
return texts.errors.generic.unknown;
}
}
static String _getHubError(Texts texts, String key) {
switch (key) {
case 'has_orders':
return texts.errors.hub.has_orders;
case 'not_found':
return texts.errors.hub.not_found;
case 'creation_failed':
return texts.errors.hub.creation_failed;
default:
return texts.errors.generic.unknown;
}
}
static String _getOrderError(Texts texts, String key) {
switch (key) {
case 'missing_hub':
return texts.errors.order.missing_hub;
case 'missing_vendor':
return texts.errors.order.missing_vendor;
case 'creation_failed':
return texts.errors.order.creation_failed;
case 'shift_creation_failed':
return texts.errors.order.shift_creation_failed;
case 'missing_business':
return texts.errors.order.missing_business;
default:
return texts.errors.generic.unknown;
}
}
static String _getProfileError(Texts texts, String key) {
switch (key) {
case 'staff_not_found':
return texts.errors.profile.staff_not_found;
case 'business_not_found':
return texts.errors.profile.business_not_found;
case 'update_failed':
return texts.errors.profile.update_failed;
default:
return texts.errors.generic.unknown;
}
}
static String _getShiftError(Texts texts, String key) {
switch (key) {
case 'no_open_roles':
return texts.errors.shift.no_open_roles;
case 'application_not_found':
return texts.errors.shift.application_not_found;
case 'no_active_shift':
return texts.errors.shift.no_active_shift;
default:
return texts.errors.generic.unknown;
}
}
static String _getGenericError(Texts texts, String key) {
switch (key) {
case 'unknown':
return texts.errors.generic.unknown;
case 'no_connection':
return texts.errors.generic.no_connection;
default:
return texts.errors.generic.unknown;
}
}
}

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@@ -0,0 +1,49 @@
import 'package:flutter/material.dart';
import '../ui_colors.dart';
import '../ui_typography.dart';
/// Centralized success snackbar for consistent success message presentation.
///
/// This widget provides a unified way to show success feedback across the app
/// with consistent styling and behavior.
///
/// Usage:
/// ```dart
/// UiSuccessSnackbar.show(
/// context,
/// message: 'Profile updated successfully!',
/// );
/// ```
class UiSuccessSnackbar {
/// Shows a success snackbar with a custom message.
///
/// [message] is the success message to display
/// [duration] controls how long the snackbar is visible
static void show(
BuildContext context, {
required String message,
Duration duration = const Duration(seconds: 3),
}) {
ScaffoldMessenger.of(context).showSnackBar(
SnackBar(
content: Row(
children: [
Icon(Icons.check_circle_outline, color: UiColors.white),
const SizedBox(width: 12),
Expanded(
child: Text(
message,
style: UiTypography.body2m.copyWith(color: UiColors.white),
),
),
],
),
backgroundColor: UiColors.success,
behavior: SnackBarBehavior.floating,
duration: duration,
shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(8)),
margin: const EdgeInsets.all(16),
),
);
}
}