fix: timezone of default schedule should change if profile timezone is updated (#11533)

* change tz of default schedule

* make sure user has at least one schedule

---------

Co-authored-by: CarinaWolli <wollencarina@gmail.com>

packages/trpc/server/routers/loggedInViewer/updateProfile.handler.ts

@@ -19,6 +19,7 @@ import type { TrpcSessionUser } from "@calcom/trpc/server/trpc";
 
 import { TRPCError } from "@trpc/server";
 
+import { getDefaultScheduleId } from "../viewer/availability/util";
 import { updateUserMetadataAllowedKeys, type TUpdateProfileInputSchema } from "./updateProfile.schema";
 
 type UpdateProfileOptions = {
@@ -130,9 +131,40 @@ export const updateProfileHandler = async ({ ctx, input }: UpdateProfileOptions)
       name: true,
       createdDate: true,
       locale: true,
+      schedules: {
+        select: {
+          id: true,
+        },
+      },
     },
   });
 
+  if (user.timeZone !== data.timeZone && updatedUser.schedules.length > 0) {
+    // on timezone change update timezone of default schedule
+    const defaultScheduleId = await getDefaultScheduleId(user.id, prisma);
+
+    if (!user.defaultScheduleId) {
+      // set default schedule if not already set
+      await prisma.user.update({
+        where: {
+          id: user.id,
+        },
+        data: {
+          defaultScheduleId,
+        },
+      });
+    }
+
+    await prisma.schedule.updateMany({
+      where: {
+        id: defaultScheduleId,
+      },
+      data: {
+        timeZone: data.timeZone,
+      },
+    });
+  }
+
   if (hasEmailChangedOnNonCalProvider) {
     // Because the email has changed, we are now attempting to use the CAL provider-
     // which has no password yet. We have to send the reset password email.

packages/trpc/server/routers/viewer/availability/schedule/create.handler.ts

@@ -54,6 +54,8 @@ export const createHandler = async ({ input, ctx }: CreateOptions) => {
     },
   };
 
+  data.timeZone = user.timeZone;
+
   const schedule = await prisma.schedule.create({
     data,
   });