♻️ Add abstractions for tracking server-side events (#1143)

Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>

apps/web/src/utils/auth.ts

@@ -17,7 +17,7 @@ import EmailProvider from "next-auth/providers/email";
 import GoogleProvider from "next-auth/providers/google";
 import { Provider } from "next-auth/providers/index";
 
-import { PostHogClient } from "@/app/posthog";
+import { posthog } from "@/app/posthog";
 import { absoluteUrl } from "@/utils/absolute-url";
 import { CustomPrismaAdapter } from "@/utils/auth/custom-prisma-adapter";
 import { mergeGuestsIntoUser } from "@/utils/auth/merge-user";
@@ -176,7 +176,6 @@ const getAuthOptions = (...args: GetServerSessionParams) =>
     },
     callbacks: {
       async signIn({ user, email, account, profile }) {
-        const posthog = PostHogClient();
         const distinctId = user.email ?? user.id;
         // prevent sign in if email is not verified
         if (
@@ -191,7 +190,6 @@ const getAuthOptions = (...args: GetServerSessionParams) =>
               reason: "email not verified",
             },
           });
-          await posthog?.shutdownAsync();
           return false;
         }
         // Make sure email is allowed
@@ -224,6 +222,14 @@ const getAuthOptions = (...args: GetServerSessionParams) =>
             await mergeGuestsIntoUser(user.id, [session.user.id]);
           }
 
+          posthog?.identify({
+            distinctId,
+            properties: {
+              name: user.name,
+              email: user.email,
+            },
+          });
+
           posthog?.capture({
             distinctId,
             event: "login",
@@ -231,7 +237,6 @@ const getAuthOptions = (...args: GetServerSessionParams) =>
               method: account?.provider,
             },
           });
-          await posthog?.shutdownAsync();
         }
 
         return true;