feat: complete refactoring phase 1 with API, component, and business logic consolidation

Co-authored-by: cetinmustafa83 <30570791+cetinmustafa83@users.noreply.github.com>

src/lib/api-response.ts

@@ -0,0 +1,119 @@
+import { NextResponse } from 'next/server';
+
+/**
+ * Standardized API Response Format
+ * All routes should use these helpers for consistency
+ */
+
+export interface StandardResponse<T = any> {
+  success: boolean;
+  data?: T;
+  error?: string;
+  timestamp: string;
+  path?: string;
+}
+
+/**
+ * Success response with data
+ */
+export const successResponse = <T = any>(
+  data: T,
+  status = 200,
+  path?: string
+): NextResponse<StandardResponse<T>> => {
+  return NextResponse.json(
+    {
+      success: true,
+      data,
+      timestamp: new Date().toISOString(),
+      path,
+    },
+    { status }
+  );
+};
+
+/**
+ * Error response
+ */
+export const errorResponse = (
+  error: string | Error,
+  status = 400,
+  path?: string
+): NextResponse<StandardResponse> => {
+  const message = error instanceof Error ? error.message : error;
+  return NextResponse.json(
+    {
+      success: false,
+      error: message,
+      timestamp: new Date().toISOString(),
+      path,
+    },
+    { status }
+  );
+};
+
+/**
+ * Created (201) response for POST
+ */
+export const createdResponse = <T = any>(
+  data: T,
+  path?: string
+): NextResponse<StandardResponse<T>> => {
+  return successResponse(data, 201, path);
+};
+
+/**
+ * No content (204) response for DELETE
+ */
+export const noContentResponse = () => {
+  return new NextResponse(null, { status: 204 });
+};
+
+/**
+ * Unauthorized error
+ */
+export const unauthorizedError = (path?: string) => {
+  return errorResponse('Unauthorized', 401, path);
+};
+
+/**
+ * Forbidden error
+ */
+export const forbiddenError = (path?: string) => {
+  return errorResponse('Forbidden', 403, path);
+};
+
+/**
+ * Not found error
+ */
+export const notFoundError = (message = 'Not found', path?: string) => {
+  return errorResponse(message, 404, path);
+};
+
+/**
+ * Validation error
+ */
+export const validationError = (message: string, path?: string) => {
+  return errorResponse(message, 422, path);
+};
+
+/**
+ * Server error
+ */
+export const serverError = (error: Error | string, path?: string) => {
+  return errorResponse(error, 500, path);
+};
+
+/**
+ * Wrap handler with automatic error handling
+ */
+export const withErrorHandling = (handler: Function) => {
+  return async (...args: any[]) => {
+    try {
+      return await handler(...args);
+    } catch (error) {
+      console.error('[v0] API Error:', error);
+      return serverError(error instanceof Error ? error : 'Unknown error');
+    }
+  };
+};