first commit

functions/src/auth/checkEmail.ts

@@ -0,0 +1,59 @@
+//NEEDS WORKS ON < PAST CODE >
+
+import { onRequest } from 'firebase-functions/v2/https';
+import { logger } from 'firebase-functions/v2';
+// Import Request/Response from express
+
+// Import the MIDDLEWARE HANDLER and db from config
+import { corsMiddlewareHandler, db } from '../config'; // Use the middleware export name
+// Import error utility
+import { toErrorWithMessage } from '../utils';
+
+export const checkEmailDuplicateV2 = onRequest(async (request, response) => {
+  return corsMiddlewareHandler(request, response, async () => {
+    logger.info('checkEmailDuplicate: Function invoked via CORS Middleware.');
+
+    if (request.method !== 'POST') {
+      logger.warn(`checkEmailDuplicate: Method not allowed: ${request.method}`);
+      response.status(405).send({ message: 'Method Not Allowed.' });
+      return;
+    }
+
+    const { email } = request.body;
+    // ... rest of your validation and try/catch logic using db and logger ...
+    logger.info(`checkEmailDuplicate: Checking email: ${email}`);
+
+    if (!email || typeof email !== 'string') {
+      logger.warn('checkEmailDuplicate: Missing or invalid email field.');
+      response.status(400).send({
+        /* ... */
+      });
+      return;
+    }
+
+    try {
+      const usersCollection = db.collection('users');
+      const querySnapshot = await usersCollection
+        .where('email', '==', email)
+        .limit(1)
+        .get();
+
+      if (!querySnapshot.empty) {
+        logger.info(`checkEmailDuplicate: Email ${email} exists.`);
+        response.send({ status: 'exists' });
+      } else {
+        logger.info(`checkEmailDuplicate: Email ${email} is available.`);
+        response.send({ status: 'available' });
+      }
+    } catch (error: unknown) {
+      const errorMsg = toErrorWithMessage(error).message;
+      logger.error(
+        `checkEmailDuplicate: Error checking email ${email}: ${errorMsg}`,
+        { error },
+      );
+      response.status(500).send({
+        /* ... */
+      });
+    }
+  }); // End of corsMiddlewareHandler callback
+}); // End of onRequest