123 lines
3.7 KiB
Dart
123 lines
3.7 KiB
Dart
/// Base class for all exceptions in the application
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/// Exceptions are thrown during runtime and should be caught and converted to failures
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abstract class AppException implements Exception {
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final String message;
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final String? code;
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const AppException(this.message, {this.code});
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@override
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String toString() => 'AppException: $message${code != null ? ' (Code: $code)' : ''}';
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}
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/// Exception thrown when there's a server-related error
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/// This includes HTTP errors, API response errors, etc.
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class ServerException extends AppException {
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const ServerException(super.message, {super.code});
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@override
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String toString() => 'ServerException: $message${code != null ? ' (Code: $code)' : ''}';
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}
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/// Exception thrown when there's a network-related error
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/// This includes connection timeouts, no internet connection, etc.
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class NetworkException extends AppException {
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const NetworkException(super.message, {super.code});
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@override
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String toString() => 'NetworkException: $message${code != null ? ' (Code: $code)' : ''}';
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}
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/// Exception thrown when there's a local storage error
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/// This includes Hive errors, file system errors, etc.
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class CacheException extends AppException {
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const CacheException(super.message, {super.code});
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@override
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String toString() => 'CacheException: $message${code != null ? ' (Code: $code)' : ''}';
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}
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/// Exception thrown when input validation fails
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class ValidationException extends AppException {
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final Map<String, String>? fieldErrors;
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const ValidationException(
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super.message, {
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super.code,
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this.fieldErrors,
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});
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@override
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String toString() {
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var result = 'ValidationException: $message${code != null ? ' (Code: $code)' : ''}';
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if (fieldErrors != null && fieldErrors!.isNotEmpty) {
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result += '\nField errors: ${fieldErrors.toString()}';
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}
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return result;
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}
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}
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/// Exception thrown when a required permission is denied
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class PermissionException extends AppException {
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final String permissionType;
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const PermissionException(
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super.message,
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this.permissionType, {
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super.code,
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});
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@override
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String toString() =>
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'PermissionException: $message (Permission: $permissionType)${code != null ? ' (Code: $code)' : ''}';
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}
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/// Exception thrown when scanning operation fails
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class ScannerException extends AppException {
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const ScannerException(super.message, {super.code});
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@override
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String toString() => 'ScannerException: $message${code != null ? ' (Code: $code)' : ''}';
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}
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/// Exception thrown when printing operation fails
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class PrintException extends AppException {
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const PrintException(super.message, {super.code});
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@override
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String toString() => 'PrintException: $message${code != null ? ' (Code: $code)' : ''}';
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}
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/// Exception thrown for JSON parsing errors
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class JsonException extends AppException {
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const JsonException(super.message, {super.code});
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@override
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String toString() => 'JsonException: $message${code != null ? ' (Code: $code)' : ''}';
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}
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/// Exception thrown for format-related errors (e.g., invalid barcode format)
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class FormatException extends AppException {
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final String expectedFormat;
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final String receivedFormat;
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const FormatException(
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super.message,
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this.expectedFormat,
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this.receivedFormat, {
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super.code,
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});
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@override
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String toString() =>
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'FormatException: $message (Expected: $expectedFormat, Received: $receivedFormat)${code != null ? ' (Code: $code)' : ''}';
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}
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/// Generic exception for unexpected errors
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class UnknownException extends AppException {
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const UnknownException([super.message = 'An unexpected error occurred', String? code])
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: super(code: code);
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@override
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String toString() => 'UnknownException: $message${code != null ? ' (Code: $code)' : ''}';
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} |