follow users

src/services/follows.js

@@ -0,0 +1,20 @@
+import { followsRef } from "../config/firebase";
+
+export const getFollowersCount = async (userId) => {
+  if (!userId) return 0;
+  const snap = await followsRef.where("followeeId", "==", userId).get();
+  return snap?.size || 0;
+};
+
+export const getFollowingCount = async (userId) => {
+  if (!userId) return 0;
+  const snap = await followsRef.where("followerId", "==", userId).get();
+  return snap?.size || 0;
+};
+
+export const unfollowUser = async ({ followerId, followeeId }) => {
+  if (!followerId || !followeeId) throw new Error("Missing followerId/followeeId");
+  const id = `${followerId}_${followeeId}`;
+  await followsRef.doc(id).delete();
+  return id;
+};