initial wcag-ada

apps/wcag-ada/api/src/middleware/error-handler.ts

@@ -0,0 +1,59 @@
+import { Context } from 'hono';
+import { HTTPException } from 'hono/http-exception';
+import { ZodError } from 'zod';
+import { appConfig } from '../config';
+import { logger } from '../utils/logger';
+
+export const errorHandler = (err: Error, c: Context) => {
+  logger.error('Error:', err);
+  
+  // Handle Hono HTTP exceptions
+  if (err instanceof HTTPException) {
+    return c.json(
+      { error: err.message },
+      err.status
+    );
+  }
+  
+  // Handle Zod validation errors
+  if (err instanceof ZodError) {
+    return c.json(
+      {
+        error: 'Validation error',
+        details: err.errors.map(e => ({
+          path: e.path.join('.'),
+          message: e.message,
+        })),
+      },
+      400
+    );
+  }
+  
+  // Handle Prisma errors
+  if (err.constructor.name === 'PrismaClientKnownRequestError') {
+    const prismaError = err as any;
+    
+    if (prismaError.code === 'P2002') {
+      return c.json(
+        { error: 'Duplicate entry' },
+        400
+      );
+    }
+    
+    if (prismaError.code === 'P2025') {
+      return c.json(
+        { error: 'Record not found' },
+        404
+      );
+    }
+  }
+  
+  // Default error response
+  return c.json(
+    {
+      error: 'Internal server error',
+      message: appConfig.env === 'development' ? err.message : undefined,
+    },
+    500
+  );
+};