From 4813b34febb0801f2a2629ad7b4589511eac2f6f Mon Sep 17 00:00:00 2001
From: Joe Au-Yeung <j.auyeung419@gmail.com>
Date: Fri, 27 Oct 2023 14:59:00 -0400
Subject: [PATCH] On reschedule update sequence

---
 packages/features/bookings/lib/handleNewBooking.ts | 14 ++++++++++++--
 packages/types/Calendar.d.ts                       |  1 +
 2 files changed, 13 insertions(+), 2 deletions(-)

diff --git a/packages/features/bookings/lib/handleNewBooking.ts b/packages/features/bookings/lib/handleNewBooking.ts
index 884ee75d94..c873b65f6a 100644
--- a/packages/features/bookings/lib/handleNewBooking.ts
+++ b/packages/features/bookings/lib/handleNewBooking.ts
@@ -1099,7 +1099,15 @@ async function handler(
   const calEventUserFieldsResponses =
     "calEventUserFieldsResponses" in reqBody ? reqBody.calEventUserFieldsResponses : null;
 
-  const iCalUID = rescheduleUid ? originalRescheduledBooking?.iCalUID : `${uid}@cal.com`;
+  const iCalUID = originalRescheduledBooking?.iCalUID ?? `${uid}@cal.com`;
+  // For bookings made before introducing iCalSequence, assume that the sequence should start at 1. For new bookings start at 0.
+  const iCalSequence = originalRescheduledBooking?.iCalSequence
+    ? originalRescheduledBooking.iCalSequence + 1
+    : originalRescheduledBooking
+    ? 1
+    : 0;
+
+  console.log("🚀 ~ file: handleNewBooking.ts:1105 ~ iCalSequence:", iCalSequence);
 
   let evt: CalendarEvent = {
     bookerUrl: await getBookerUrl(organizerUser),
@@ -1138,6 +1146,7 @@ async function handler(
     seatsShowAvailabilityCount: eventType.seatsPerTimeSlot ? eventType.seatsShowAvailabilityCount : true,
     schedulingType: eventType.schedulingType,
     iCalUID,
+    iCalSequence,
   };
 
   if (isTeamEventType && eventType.schedulingType === "COLLECTIVE") {
@@ -1966,7 +1975,8 @@ async function handler(
               connect: { id: evt.destinationCalendar[0].id },
             }
           : undefined,
-      iCalUID: evt.iCalUID,
+      iCalUID: evt.iCalUID ?? "",
+      iCalSequence: evt.iCalSequence ?? 0,
     };
 
     if (reqBody.recurringEventId) {
diff --git a/packages/types/Calendar.d.ts b/packages/types/Calendar.d.ts
index b8e3989f71..57e04ea41f 100644
--- a/packages/types/Calendar.d.ts
+++ b/packages/types/Calendar.d.ts
@@ -184,6 +184,7 @@ export interface CalendarEvent {
   seatsPerTimeSlot?: number | null;
   schedulingType?: SchedulingType | null;
   iCalUID?: string | null;
+  iCalSequence?: number | null;
 
   // It has responses to all the fields(system + user)
   responses?: CalEventResponses | null;