baseproject

base_project/lib/data/exceptions/app_exceptions.dart

@@ -0,0 +1,81 @@
+class AppExceptions implements Exception {
+  final String? _message;
+  final String? _prefix;
+
+  AppExceptions([this._message, this._prefix]);
+
+  @override
+  String toString() {
+    return "${_prefix ?? ''}${_message ?? 'An unknown error occurred'}";
+  }
+}
+
+// Network error when data fetch fails
+class FetchDataException extends AppExceptions {
+  FetchDataException([String? message])
+      : super(message ?? "Network Error: Failed to communicate with the server. Please check your internet connection and try again.", 
+              "Error During Communication: ");
+}
+
+// Error for invalid or malformed requests
+class BadRequestException extends AppExceptions {
+  BadRequestException([String? message])
+      : super(message ?? "Client Error: The request sent to the server was malformed or contained invalid parameters.", 
+              "Invalid Request: ");
+}
+
+// Error for unauthorized access
+class UnauthorizedException extends AppExceptions {
+  UnauthorizedException([String? message])
+      : super(message ?? "Authorization Error: You are not authorized to perform this action. Please log in with appropriate credentials.", 
+              "Unauthorized: ");
+}
+
+// Error when a resource is not found
+class NotFoundException extends AppExceptions {
+  NotFoundException([String? message])
+      : super(message ?? "Resource Not Found: The requested resource could not be found on the server. It may have been moved or deleted.", 
+              "Not Found: ");
+}
+
+// Error for server-side issues
+class InternalServerErrorException extends AppExceptions {
+  InternalServerErrorException([String? message])
+      : super(message ?? "Server Error: An unexpected error occurred on the server. Please try again later or contact support.", 
+              "Internal Server Error: ");
+}
+
+// Error when user input is invalid
+class InvalidInputException extends AppExceptions {
+  InvalidInputException([String? message])
+      : super(message ?? "Validation Error: The provided input does not match the required format. Please correct the errors and try again.", 
+              "Invalid Input: ");
+}
+
+// Error when a request times out
+class TimeoutException extends AppExceptions {
+  TimeoutException([String? message])
+      : super(message ?? "Request Timeout: The server took too long to respond. Please check your connection and try again.", 
+              "Timeout: ");
+}
+
+// Error when a request conflicts with the current state
+class ConflictException extends AppExceptions {
+  ConflictException([String? message])
+      : super(message ?? "Conflict Error: The request could not be processed because of a conflict with the current state of the resource.", 
+              "Conflict: ");
+}
+
+// Error when the service is unavailable
+class ServiceUnavailableException extends AppExceptions {
+  ServiceUnavailableException([String? message])
+      : super(message ?? "Service Unavailable: The server is currently unable to handle the request. Please try again later.", 
+              "Service Unavailable: ");
+}
+
+// Error when access to a resource is forbidden
+class ForbiddenException extends AppExceptions {
+  ForbiddenException([String? message])
+      : super(message ?? "Forbidden: You do not have the necessary permissions to access this resource.", 
+              "Forbidden: ");
+}