runable
This commit is contained in:
Phuoc Nguyen
262
lib/core/errors/failures.dart
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262
lib/core/errors/failures.dart
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/// Failure classes for error handling in the Worker app
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///
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/// Failures represent domain-level errors that can be returned from use cases
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/// and repositories. They wrap exceptions and provide user-friendly error messages.
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library;
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/// Base failure class
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sealed class Failure {
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const Failure({required this.message});
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/// Network-related failure
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const factory Failure.network({
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required String message,
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int? statusCode,
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}) = NetworkFailure;
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/// Server error failure (5xx errors)
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const factory Failure.server({
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required String message,
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int? statusCode,
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}) = ServerFailure;
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/// Authentication failure
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const factory Failure.authentication({
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required String message,
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int? statusCode,
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}) = AuthenticationFailure;
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/// Validation failure
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const factory Failure.validation({
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required String message,
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Map<String, List<String>>? errors,
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}) = ValidationFailure;
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/// Not found failure (404)
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const factory Failure.notFound({
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required String message,
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}) = NotFoundFailure;
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/// Conflict failure (409)
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const factory Failure.conflict({
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required String message,
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}) = ConflictFailure;
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/// Rate limit exceeded failure (429)
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const factory Failure.rateLimit({
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required String message,
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int? retryAfter,
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}) = RateLimitFailure;
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/// Payment failure
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const factory Failure.payment({
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required String message,
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String? transactionId,
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}) = PaymentFailure;
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/// Cache failure
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const factory Failure.cache({
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required String message,
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}) = CacheFailure;
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/// Storage failure
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const factory Failure.storage({
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required String message,
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}) = StorageFailure;
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/// Parse failure
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const factory Failure.parse({
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required String message,
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}) = ParseFailure;
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/// No internet connection failure
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const factory Failure.noInternet() = NoInternetFailure;
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/// Timeout failure
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const factory Failure.timeout() = TimeoutFailure;
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/// Unknown failure
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const factory Failure.unknown({
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required String message,
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}) = UnknownFailure;
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final String message;
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/// Check if this is a critical failure that requires immediate attention
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bool get isCritical {
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return switch (this) {
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ServerFailure() => true,
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AuthenticationFailure() => true,
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PaymentFailure() => true,
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UnknownFailure() => true,
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_ => false,
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};
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}
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/// Check if this failure can be retried
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bool get canRetry {
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return switch (this) {
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NetworkFailure() => true,
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ServerFailure(:final statusCode) => statusCode == 503,
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AuthenticationFailure(:final statusCode) => statusCode == 401,
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RateLimitFailure() => true,
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CacheFailure() => true,
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NoInternetFailure() => true,
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TimeoutFailure() => true,
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_ => false,
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};
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}
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/// Get HTTP status code if available
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int? get statusCode {
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return switch (this) {
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NetworkFailure(:final statusCode) => statusCode,
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ServerFailure(:final statusCode) => statusCode,
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AuthenticationFailure(:final statusCode) => statusCode,
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_ => null,
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};
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}
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/// Get user-friendly error message
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String getUserMessage() {
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return switch (this) {
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ValidationFailure(:final message, :final errors) => _formatValidationMessage(message, errors),
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RateLimitFailure(:final message, :final retryAfter) => _formatRateLimitMessage(message, retryAfter),
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NoInternetFailure() => 'Không có kết nối internet. Vui lòng kiểm tra kết nối của bạn.',
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TimeoutFailure() => 'Kết nối quá lâu. Vui lòng thử lại.',
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_ => message,
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};
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}
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String _formatValidationMessage(String message, Map<String, List<String>>? errors) {
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if (errors != null && errors.isNotEmpty) {
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final firstError = errors.values.first.first;
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return '$message: $firstError';
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}
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return message;
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}
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String _formatRateLimitMessage(String message, int? retryAfter) {
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if (retryAfter != null) {
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return '$message Thử lại sau $retryAfter giây.';
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}
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return message;
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}
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}
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/// Network-related failure
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final class NetworkFailure extends Failure {
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const NetworkFailure({
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required super.message,
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this.statusCode,
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});
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@override
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final int? statusCode;
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}
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/// Server error failure (5xx errors)
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final class ServerFailure extends Failure {
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const ServerFailure({
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required super.message,
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this.statusCode,
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});
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@override
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final int? statusCode;
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}
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/// Authentication failure
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final class AuthenticationFailure extends Failure {
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const AuthenticationFailure({
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required super.message,
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this.statusCode,
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});
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@override
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final int? statusCode;
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}
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/// Validation failure
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final class ValidationFailure extends Failure {
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const ValidationFailure({
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required super.message,
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this.errors,
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});
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final Map<String, List<String>>? errors;
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}
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/// Not found failure (404)
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final class NotFoundFailure extends Failure {
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const NotFoundFailure({
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required super.message,
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});
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}
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/// Conflict failure (409)
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final class ConflictFailure extends Failure {
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const ConflictFailure({
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required super.message,
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});
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}
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/// Rate limit exceeded failure (429)
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final class RateLimitFailure extends Failure {
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const RateLimitFailure({
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required super.message,
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this.retryAfter,
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});
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final int? retryAfter;
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}
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/// Payment failure
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final class PaymentFailure extends Failure {
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const PaymentFailure({
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required super.message,
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this.transactionId,
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});
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final String? transactionId;
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}
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/// Cache failure
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final class CacheFailure extends Failure {
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const CacheFailure({
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required super.message,
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});
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}
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/// Storage failure
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final class StorageFailure extends Failure {
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const StorageFailure({
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required super.message,
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});
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}
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/// Parse failure
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final class ParseFailure extends Failure {
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const ParseFailure({
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required super.message,
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});
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}
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/// No internet connection failure
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final class NoInternetFailure extends Failure {
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const NoInternetFailure()
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: super(message: 'Không có kết nối internet');
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}
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/// Timeout failure
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final class TimeoutFailure extends Failure {
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const TimeoutFailure()
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: super(message: 'Kết nối quá lâu');
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}
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/// Unknown failure
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final class UnknownFailure extends Failure {
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const UnknownFailure({
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required super.message,
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});
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}
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