BACKEND DONE FOR ALL APPS

UC/src/network/operations_base/operation_base.ts

@@ -0,0 +1,43 @@
+import { ParsedMessage } from '../message_handler';
+import { OperationHandler } from './operation_handler';
+import { OperationPlugin } from './operation_plugin';
+
+export abstract class OperationBase implements OperationPlugin {
+    // Shared operation codes
+    public static readonly operationCodes = {
+        OK: 'OK',
+        ERR: 'ERR',
+        END: 'END',
+    };
+
+    // Default handler for OK operation
+    public static handleOk(parsedMessage: ParsedMessage): ParsedMessage {
+        console.log('OK operation received');
+        return parsedMessage;  // Typically, you would just acknowledge with OK, returning as-is
+    }
+
+    // Default handler for ERR operation
+    public static handleErr(parsedMessage: ParsedMessage): ParsedMessage {
+        console.log('ERR operation received: ', parsedMessage.metaInfo?.message || 'No error details provided');
+        return parsedMessage;  // Typically, you would log the error and return
+    }
+
+    // Default handler for END operation
+    public static handleEnd(parsedMessage: ParsedMessage): ParsedMessage {
+        console.log('END operation received');
+        return {
+            operationCode: OperationBase.operationCodes.END,
+            metaInfo: { message: 'Connection ended.' },
+        };
+    }
+
+    // Register the common OK, ERR, and END handlers
+    public static registerCommonOperations(operationHandler: OperationHandler): void {
+        operationHandler.registerHandler(OperationBase.operationCodes.OK, OperationBase.handleOk);
+        operationHandler.registerHandler(OperationBase.operationCodes.ERR, OperationBase.handleErr);
+        operationHandler.registerHandler(OperationBase.operationCodes.END, OperationBase.handleEnd);
+    }
+
+    // Abstract register method that will be implemented by subclasses
+    public abstract register(operationHandler: OperationHandler): void;
+}