feat: base shortcut code

utils/handler.ts

@@ -0,0 +1,45 @@
+import { ShortcutsRequest, ShortcutsResponse } from './types';
+import { CommandRegistry } from './registry';
+
+export class ShortcutsHandler {
+  private registry: CommandRegistry;
+
+  constructor() {
+    this.registry = new CommandRegistry();
+  }
+
+  validateRequest(req: ShortcutsRequest): boolean {
+    try {
+      const isValidUser = req.apiKey == process.env.USER_KEY;
+
+      return !!isValidUser;
+    } catch (error) {
+      console.error('Error validating request:', error);
+      return false;
+    }
+  }
+
+  async processCommand(
+    command: string,
+    parameters?: Record<string, string>
+  ): Promise<ShortcutsResponse> {
+    const handler = this.registry.getCommand(command);
+
+    if (!handler) {
+      return {
+        success: false,
+        message: `Unknown command: ${command}.`
+      };
+    }
+
+    try {
+      return await handler(parameters);
+    } catch (error) {
+      console.error(`Error processing command ${command}:`, error);
+      return {
+        success: false,
+        message: 'An error occurred while processing your command.'
+      };
+    }
+  }
+}