feat: add PATCH endpoint for updating Google Calendar events (#22339)

* feat: add PATCH endpoint for updating Google Calendar events - Create UpdateUnifiedCalendarEventInput DTO with optional fields for partial updates - Add PATCH /:calendar/event/:eventUid endpoint to CalUnifiedCalendarsController - Extend GoogleCalendarService with updateEventDetails method - Support updating title, description, start/end times for Google Calendar events - Follow existing patterns for validation, error handling, and response transformation - Initially support Google Calendar only with extensibility for other providers Co-Authored-By: somay@cal.com <somay@cal.com> * feat: expand PATCH endpoint to support all calendar event fields - Add comprehensive field support to UpdateUnifiedCalendarEventInput DTO - Include locations, attendees, status, and hosts fields with proper validation - Expand GoogleCalendarService.updateEventDetails to handle complex field transformations - Add helper methods for response status and event status mapping - Preserve existing transformation logic from GoogleCalendarEventOutputPipe - Support conferenceData updates with conferenceDataVersion parameter Co-Authored-By: somay@cal.com <somay@cal.com> * fix: add support for simple location field in Google Calendar events - Add handling for geographic location field in addition to conferenceData - Filter non-video locations for the simple location string field - Preserve existing conferenceData support for video meetings - Verified against Google Calendar API documentation Co-Authored-By: somay@cal.com <somay@cal.com> * refactor: extract transformation logic into GoogleCalendarEventInputPipe - Create GoogleCalendarEventInputPipe following existing patterns - Extract transformation logic from updateEventDetails method - Move mapping methods to the new pipe for better organization - Improve code reusability and maintainability Addresses PR comment requesting transformation logic extraction. Co-Authored-By: somay@cal.com <somay@cal.com> * refactor: remove locations field and simplify calendar event input handling * update docs * refactor: remove hosts field from the update endpoint * fix: exclude organizer from attendees list in Google Calendar event transformation * feat: implement organizer preservation logic in PATCH endpoint - Fetch existing Google Calendar event data before transformation - Extract organizer attendees from existing event and merge with user-provided attendees - Prevent accidental removal of organizers when users update attendees - Add custom interface for GoogleCalendarEventInputPipe to support optional existingEvent parameter - Preserve organizers unless user explicitly provides hosts field in update request Co-Authored-By: somay@cal.com <somay@cal.com> * feat: add hosts array handling to PATCH endpoint - Add hosts field back to UpdateUnifiedCalendarEventInput DTO - Implement transformAttendeesWithHostsHandling method in GoogleCalendarEventInputPipe - Convert hosts to attendees with organizer: true for Google Calendar API - When hosts are provided, they replace existing organizers (not merge) - Maintain backward compatibility with existing organizer preservation logic Co-Authored-By: somay@cal.com <somay@cal.com> * feat: implement sophisticated attendee update logic with preservation and deletion support - Add UpdateCalendarEventAttendee class with action: 'delete' support - Implement attendee preservation logic that starts with existing Google Calendar attendees - Support explicit attendee deletion using action: 'delete' field - Update existing attendees when provided without action field - Add new attendees that don't exist in current event - Preserve organizer status when updating existing attendees - Fetch existing event data when attendees OR hosts are being updated - Maintain hosts array handling that replaces existing organizers Co-Authored-By: somay@cal.com <somay@cal.com> * feat: add host management and attendee deletion to calendar event API * refactor: improve readability of transformAttendeesWithHostsHandling and restrict hosts to responseStatus updates only - Break down complex transformAttendeesWithHostsHandling method into smaller, more readable helper functions: - preserveExistingAttendees: handles existing attendee preservation - processAttendeeDeletions: handles attendee deletion logic - processAttendeeUpdatesAndAdditions: handles attendee updates and additions - replaceHostsWithUpdatedOnes: handles host replacement with restrictions - Create UpdateCalendarEventHost class that only allows responseStatus updates - Restrict hosts array to prevent changes to name, email, and other fields - Preserve existing host displayName from Google Calendar when updating responseStatus Co-Authored-By: somay@cal.com <somay@cal.com> * feat: restrict host updates to responseStatus only, preserve email and name from Google Calendar data - Remove email field from UpdateCalendarEventHost class - Update replaceHostsWithUpdatedOnes to preserve all host data except responseStatus - Apply responseStatus updates to all existing organizers from Google Calendar - Prevent users from updating host email or name fields Co-Authored-By: somay@cal.com <somay@cal.com> * Revert "feat: restrict host updates to responseStatus only, preserve email and name from Google Calendar data" This reverts commit 22d07ce0cb13e71661522b2fd8a237d8b6e0809c. * refactor: replace optional flag with organizer property in calendar event attendees * refactor: remove organizer field from calendar event attendee input * feat: add comprehensive test suites for calendar transformation pipes - Create google-calendar-event-input.pipe.spec.ts with 67 test cases - Create get-calendar-event-details-output-pipe.spec.ts with 35 test cases - Follow event-types transformer test patterns with separate describe blocks - Cover all transformation functions including edge cases and null handling - Test attendee preservation, deletion, host management, and status transformations - Ensure comprehensive coverage for sophisticated attendee update logic Co-Authored-By: somay@cal.com <somay@cal.com> * fix: remove invalid optional properties from calendar pipe tests - Remove optional: false from line 85 in 'should transform attendees without existing event' test case - Remove optional: true from line 388 in 'should update existing attendee' test case - Remove optional: false from line 421 in 'should add new attendee' test case - Update expected outputs to match actual pipe implementation behavior - All 30 tests now pass locally Co-Authored-By: somay@cal.com <somay@cal.com> * fix: add platform library path mappings to Jest configuration - Resolves module resolution errors for @calcom/platform-libraries/* imports in Jest - Ensures test suite can run without 'Cannot find module' errors - Adds comprehensive path mappings matching TypeScript configuration Co-Authored-By: somay@cal.com <somay@cal.com> * fix: add @calcom/dayjs path mapping to Jest configuration - Add missing moduleNameMapper entry for @calcom/dayjs to resolve TypeScript path mappings in Jest - Fixes TypeError: Cannot read properties of undefined (reading 'extend') in calendar pipe tests - Calendar transformation pipe tests now pass successfully Co-Authored-By: somay@cal.com <somay@cal.com> * fix: configure Jest to use dayjs mock system for consistent test environment - Remove @calcom/dayjs path mapping from Jest config - Add setupFilesAfterEnv to automatically import dayjs mock - Update dayjs mock with comprehensive jest.fn() implementation - Add @calcom/platform-libraries/repositories and @calcom/prisma/client mappings - Resolves dayjs TypeError in slots.service.spec.ts and other test files Co-Authored-By: somay@cal.com <somay@cal.com> * fix: complete shared Google event data with required properties for test suites - Add missing required properties to sharedGoogleEvent in both test files - Fix TypeScript compilation errors in calendar transformation pipe tests - Correct test assertion for attendees filtering logic in output pipe - All 11 test suites now pass with 199 tests total Co-Authored-By: somay@cal.com <somay@cal.com> * undo extra changes * better tests * fix: update calendar API endpoints to use plural events in path * update documentation * fix: Restrict updates to only the responseStatus field for hosts * feat: add PATCH endpoint for updating Google Calendar events - Create UpdateUnifiedCalendarEventInput DTO with optional fields for partial updates - Add PATCH /:calendar/event/:eventUid endpoint to CalUnifiedCalendarsController - Extend GoogleCalendarService with updateEventDetails method - Support updating title, description, start/end times for Google Calendar events - Follow existing patterns for validation, error handling, and response transformation - Initially support Google Calendar only with extensibility for other providers Co-Authored-By: somay@cal.com <somay@cal.com> * feat: expand PATCH endpoint to support all calendar event fields - Add comprehensive field support to UpdateUnifiedCalendarEventInput DTO - Include locations, attendees, status, and hosts fields with proper validation - Expand GoogleCalendarService.updateEventDetails to handle complex field transformations - Add helper methods for response status and event status mapping - Preserve existing transformation logic from GoogleCalendarEventOutputPipe - Support conferenceData updates with conferenceDataVersion parameter Co-Authored-By: somay@cal.com <somay@cal.com> * fix: add support for simple location field in Google Calendar events - Add handling for geographic location field in addition to conferenceData - Filter non-video locations for the simple location string field - Preserve existing conferenceData support for video meetings - Verified against Google Calendar API documentation Co-Authored-By: somay@cal.com <somay@cal.com> * refactor: extract transformation logic into GoogleCalendarEventInputPipe - Create GoogleCalendarEventInputPipe following existing patterns - Extract transformation logic from updateEventDetails method - Move mapping methods to the new pipe for better organization - Improve code reusability and maintainability Addresses PR comment requesting transformation logic extraction. Co-Authored-By: somay@cal.com <somay@cal.com> * refactor: remove locations field and simplify calendar event input handling * update docs * refactor: remove hosts field from the update endpoint * fix: exclude organizer from attendees list in Google Calendar event transformation * feat: implement organizer preservation logic in PATCH endpoint - Fetch existing Google Calendar event data before transformation - Extract organizer attendees from existing event and merge with user-provided attendees - Prevent accidental removal of organizers when users update attendees - Add custom interface for GoogleCalendarEventInputPipe to support optional existingEvent parameter - Preserve organizers unless user explicitly provides hosts field in update request Co-Authored-By: somay@cal.com <somay@cal.com> * feat: add hosts array handling to PATCH endpoint - Add hosts field back to UpdateUnifiedCalendarEventInput DTO - Implement transformAttendeesWithHostsHandling method in GoogleCalendarEventInputPipe - Convert hosts to attendees with organizer: true for Google Calendar API - When hosts are provided, they replace existing organizers (not merge) - Maintain backward compatibility with existing organizer preservation logic Co-Authored-By: somay@cal.com <somay@cal.com> * feat: implement sophisticated attendee update logic with preservation and deletion support - Add UpdateCalendarEventAttendee class with action: 'delete' support - Implement attendee preservation logic that starts with existing Google Calendar attendees - Support explicit attendee deletion using action: 'delete' field - Update existing attendees when provided without action field - Add new attendees that don't exist in current event - Preserve organizer status when updating existing attendees - Fetch existing event data when attendees OR hosts are being updated - Maintain hosts array handling that replaces existing organizers Co-Authored-By: somay@cal.com <somay@cal.com> * feat: add host management and attendee deletion to calendar event API * refactor: improve readability of transformAttendeesWithHostsHandling and restrict hosts to responseStatus updates only - Break down complex transformAttendeesWithHostsHandling method into smaller, more readable helper functions: - preserveExistingAttendees: handles existing attendee preservation - processAttendeeDeletions: handles attendee deletion logic - processAttendeeUpdatesAndAdditions: handles attendee updates and additions - replaceHostsWithUpdatedOnes: handles host replacement with restrictions - Create UpdateCalendarEventHost class that only allows responseStatus updates - Restrict hosts array to prevent changes to name, email, and other fields - Preserve existing host displayName from Google Calendar when updating responseStatus Co-Authored-By: somay@cal.com <somay@cal.com> * feat: restrict host updates to responseStatus only, preserve email and name from Google Calendar data - Remove email field from UpdateCalendarEventHost class - Update replaceHostsWithUpdatedOnes to preserve all host data except responseStatus - Apply responseStatus updates to all existing organizers from Google Calendar - Prevent users from updating host email or name fields Co-Authored-By: somay@cal.com <somay@cal.com> * Revert "feat: restrict host updates to responseStatus only, preserve email and name from Google Calendar data" This reverts commit 22d07ce0cb13e71661522b2fd8a237d8b6e0809c. * feat: add comprehensive test suites for calendar transformation pipes - Create google-calendar-event-input.pipe.spec.ts with 67 test cases - Create get-calendar-event-details-output-pipe.spec.ts with 35 test cases - Follow event-types transformer test patterns with separate describe blocks - Cover all transformation functions including edge cases and null handling - Test attendee preservation, deletion, host management, and status transformations - Ensure comprehensive coverage for sophisticated attendee update logic Co-Authored-By: somay@cal.com <somay@cal.com> * refactor: replace optional flag with organizer property in calendar event attendees * refactor: remove organizer field from calendar event attendee input * fix: remove invalid optional properties from calendar pipe tests - Remove optional: false from line 85 in 'should transform attendees without existing event' test case - Remove optional: true from line 388 in 'should update existing attendee' test case - Remove optional: false from line 421 in 'should add new attendee' test case - Update expected outputs to match actual pipe implementation behavior - All 30 tests now pass locally Co-Authored-By: somay@cal.com <somay@cal.com> * fix: complete shared Google event data with required properties for test suites - Add missing required properties to sharedGoogleEvent in both test files - Fix TypeScript compilation errors in calendar transformation pipe tests - Correct test assertion for attendees filtering logic in output pipe - All 11 test suites now pass with 199 tests total Co-Authored-By: somay@cal.com <somay@cal.com> * fix: resolve TypeScript compilation errors in calendar transformation pipe tests - Add comprehensive Jest mocks for @calcom/prisma/client, @calcom/dayjs, CalendarManager, and delegationCredential - Fix RedisService AbortSignal.timeout() usage - Update UserAvailabilityService import path to use @calcom/lib/getUserAvailability - Configure Jest moduleNameMapper to handle ES module imports and package.json mocking - All 11 test suites now pass with 199 tests total Co-Authored-By: somay@cal.com <somay@cal.com> * fix: use proper CacheService dependency injection in AvailableSlotsService - Replace direct CacheService instantiation with dependency injection - Update CacheService import path to use correct calendar-cache module - Fix repository and service dependencies for proper type safety - Resolves TypeScript compilation errors in slots service tests Co-Authored-By: somay@cal.com <somay@cal.com> * fix: remove duplicate test file causing TypeScript compilation error Co-Authored-By: somay@cal.com <somay@cal.com> * undo extra changes * undo extra changes * fix: remove the action: "delete" key from attendees * fix: simplify tests * update docs * undo: remove hosts * Update pre-commit * feat: add alternate route for calendar event retrieval and simplify test fixtures * remove userId -- unused * undo --------- Co-authored-by: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com> Co-authored-by: somay@cal.com <somay@cal.com> Co-authored-by: Somay Chauhan <somaychauhan98@gmail.com> Co-authored-by: Volnei Munhoz <volnei.munhoz@gmail.com>
2025-08-13 17:24:19 +01:00
parent 58ef0abb99
commit 1914b37ee4
24 changed files with 2158 additions and 3638 deletions
@@ -67,10 +67,9 @@ export class EventTypesPrivateLinksController {
  @ApiHeader(API_KEY_OR_ACCESS_TOKEN_HEADER)
  @ApiOperation({ summary: "Get all private links for an event type" })
  async getPrivateLinks(
-    @Param("eventTypeId", ParseIntPipe) eventTypeId: number,
-    @GetUser("id") userId: number
+    @Param("eventTypeId", ParseIntPipe) eventTypeId: number
  ): Promise<GetPrivateLinksOutput> {
-    const privateLinks = await this.privateLinksService.getPrivateLinks(eventTypeId, userId);
+    const privateLinks = await this.privateLinksService.getPrivateLinks(eventTypeId);

    return {
      status: SUCCESS_STATUS,
@@ -1,15 +1,15 @@
-import { Module } from "@nestjs/common";
-import { TokensModule } from "@/modules/tokens/tokens.module";
-import { OAuthClientModule } from "@/modules/oauth-clients/oauth-client.module";
-import { PrismaModule } from "@/modules/prisma/prisma.module";
 import { EventTypesModule_2024_06_14 } from "@/ee/event-types/event-types_2024_06_14/event-types.module";
 import { EventTypeOwnershipGuard } from "@/modules/event-types/guards/event-type-ownership.guard";
+import { OAuthClientModule } from "@/modules/oauth-clients/oauth-client.module";
+import { PrismaModule } from "@/modules/prisma/prisma.module";
+import { TokensModule } from "@/modules/tokens/tokens.module";
+import { Module } from "@nestjs/common";

 import { EventTypesPrivateLinksController } from "./controllers/event-types-private-links.controller";
+import { PrivateLinksRepository } from "./private-links.repository";
 import { PrivateLinksInputService } from "./services/private-links-input.service";
 import { PrivateLinksOutputService } from "./services/private-links-output.service";
 import { PrivateLinksService } from "./services/private-links.service";
-import { PrivateLinksRepository } from "./private-links.repository";

@Module({
  imports: [TokensModule, OAuthClientModule, PrismaModule, EventTypesModule_2024_06_14],
@@ -23,5 +23,3 @@ import { PrivateLinksRepository } from "./private-links.repository";
  ],
 })
 export class EventTypesPrivateLinksModule {}
-
-
@@ -25,7 +25,10 @@ export class PrivateLinksRepository {
    });
  }

-  async create(eventTypeId: number, link: { link: string; expiresAt: Date | null; maxUsageCount?: number | null }) {
+  async create(
+    eventTypeId: number,
+    link: { link: string; expiresAt: Date | null; maxUsageCount?: number | null }
+  ) {
    return this.dbWrite.prisma.hashedLink.create({
      data: {
        eventTypeId,
@@ -36,7 +39,10 @@ export class PrivateLinksRepository {
    });
  }

-  async update(eventTypeId: number, link: { link: string; expiresAt: Date | null; maxUsageCount?: number | null }) {
+  async update(
+    eventTypeId: number,
+    link: { link: string; expiresAt: Date | null; maxUsageCount?: number | null }
+  ) {
    return this.dbWrite.prisma.hashedLink.updateMany({
      where: { eventTypeId, link: link.link },
      data: {
@@ -50,5 +56,3 @@ export class PrivateLinksRepository {
    return this.dbWrite.prisma.hashedLink.deleteMany({ where: { eventTypeId, link: linkId } });
  }
 }
-
-
@@ -1,6 +1,12 @@
 import { Injectable } from "@nestjs/common";
 import { plainToClass } from "class-transformer";

+import {
+  PrivateLinkOutput,
+  TimeBasedPrivateLinkOutput,
+  UsageBasedPrivateLinkOutput,
+} from "@calcom/platform-types";
+
 export type PrivateLinkData = {
  id: string;
  eventTypeId: number;
@@ -10,7 +16,6 @@ export type PrivateLinkData = {
  maxUsageCount?: number | null;
  usageCount?: number;
 };
-import { PrivateLinkOutput, TimeBasedPrivateLinkOutput, UsageBasedPrivateLinkOutput } from "@calcom/platform-types";

@Injectable()
 export class PrivateLinksOutputService {
@@ -39,5 +44,3 @@ export class PrivateLinksOutputService {
    return data.map((item) => this.transformToOutput(item));
  }
 }
-
-
@@ -1,14 +1,13 @@
-import { Injectable, NotFoundException, BadRequestException } from "@nestjs/common";
-
-import { generateHashedLink, isLinkExpired } from "@calcom/platform-libraries/private-links";
-import { CreatePrivateLinkInput, PrivateLinkOutput, UpdatePrivateLinkInput } from "@calcom/platform-types";
-
+import { PrivateLinksRepository } from "@/ee/event-types-private-links/private-links.repository";
 import { PrivateLinksInputService } from "@/ee/event-types-private-links/services/private-links-input.service";
 import {
  PrivateLinksOutputService,
  type PrivateLinkData,
 } from "@/ee/event-types-private-links/services/private-links-output.service";
-import { PrivateLinksRepository } from "@/ee/event-types-private-links/private-links.repository";
+import { Injectable, NotFoundException, BadRequestException } from "@nestjs/common";
+
+import { generateHashedLink, isLinkExpired } from "@calcom/platform-libraries/private-links";
+import { CreatePrivateLinkInput, PrivateLinkOutput, UpdatePrivateLinkInput } from "@calcom/platform-types";

@Injectable()
 export class PrivateLinksService {
@@ -48,7 +47,7 @@ export class PrivateLinksService {
    }
  }

-  async getPrivateLinks(eventTypeId: number, userId: number): Promise<PrivateLinkOutput[]> {
+  async getPrivateLinks(eventTypeId: number): Promise<PrivateLinkOutput[]> {
    try {
      const links = await this.repo.listByEventTypeId(eventTypeId);
      const mapped: PrivateLinkData[] = links.map((l) => ({
@@ -124,5 +123,3 @@ export class PrivateLinksService {
    }
  }
 }
-
-
@@ -6,7 +6,6 @@ import { UpdateEventTypeOutput_2024_06_14 } from "@/ee/event-types/event-types_2
 import { EventTypeResponseTransformPipe } from "@/ee/event-types/event-types_2024_06_14/pipes/event-type-response.transformer";
 import { EventTypesService_2024_06_14 } from "@/ee/event-types/event-types_2024_06_14/services/event-types.service";
 import { InputEventTypesService_2024_06_14 } from "@/ee/event-types/event-types_2024_06_14/services/input-event-types.service";
-
 import { VERSION_2024_06_14_VALUE } from "@/lib/api-versions";
 import { API_KEY_OR_ACCESS_TOKEN_HEADER } from "@/lib/docs/headers";
 import { GetUser } from "@/modules/auth/decorators/get-user/get-user.decorator";
@@ -42,7 +41,6 @@ import {
  GetEventTypesQuery_2024_06_14,
  CreateEventTypeInput_2024_06_14,
  EventTypeOutput_2024_06_14,
-
 } from "@calcom/platform-types";

@Controller({
@@ -1,6 +1,7 @@
 import { BookingsModule_2024_04_15 } from "@/ee/bookings/2024-04-15/bookings.module";
 import { BookingsModule_2024_08_13 } from "@/ee/bookings/2024-08-13/bookings.module";
 import { CalendarsModule } from "@/ee/calendars/calendars.module";
+import { EventTypesPrivateLinksModule } from "@/ee/event-types-private-links/event-types-private-links.module";
 import { EventTypesModule_2024_04_15 } from "@/ee/event-types/event-types_2024_04_15/event-types.module";
 import { EventTypesModule_2024_06_14 } from "@/ee/event-types/event-types_2024_06_14/event-types.module";
 import { GcalModule } from "@/ee/gcal/gcal.module";
@@ -14,7 +15,6 @@ import { SlotsModule_2024_09_04 } from "@/modules/slots/slots-2024-09-04/slots.m
 import { TeamsEventTypesModule } from "@/modules/teams/event-types/teams-event-types.module";
 import { TeamsMembershipsModule } from "@/modules/teams/memberships/teams-memberships.module";
 import { TeamsModule } from "@/modules/teams/teams/teams.module";
-import { EventTypesPrivateLinksModule } from "@/ee/event-types-private-links/event-types-private-links.module";
 import type { MiddlewareConsumer, NestModule } from "@nestjs/common";
 import { Module } from "@nestjs/common";

@@ -2,10 +2,21 @@ import { API_VERSIONS_VALUES } from "@/lib/api-versions";
 import { API_KEY_OR_ACCESS_TOKEN_HEADER } from "@/lib/docs/headers";
 import { ApiAuthGuard } from "@/modules/auth/guards/api-auth/api-auth.guard";
 import { PermissionsGuard } from "@/modules/auth/guards/permissions/permissions.guard";
-import { GetUnifiedCalendarEventOutput } from "@/modules/cal-unified-calendars/outputs/get-unified-calendar-event";
+import { UpdateUnifiedCalendarEventInput } from "@/modules/cal-unified-calendars/inputs/update-unified-calendar-event.input";
+import { GetUnifiedCalendarEventOutput } from "@/modules/cal-unified-calendars/outputs/get-unified-calendar-event.output";
 import { GoogleCalendarEventOutputPipe } from "@/modules/cal-unified-calendars/pipes/get-calendar-event-details-output-pipe";
 import { GoogleCalendarService } from "@/modules/cal-unified-calendars/services/google-calendar.service";
-import { Controller, Get, Param, UseGuards, HttpCode, HttpStatus, BadRequestException } from "@nestjs/common";
+import {
+  Controller,
+  Get,
+  Param,
+  UseGuards,
+  HttpCode,
+  HttpStatus,
+  BadRequestException,
+  Patch,
+  Body,
+} from "@nestjs/common";
 import { ApiTags as DocsTags, ApiParam, ApiHeader, ApiOperation } from "@nestjs/swagger";

 import { GOOGLE_CALENDAR, SUCCESS_STATUS } from "@calcom/platform-constants";
@@ -30,6 +41,7 @@ export class CalUnifiedCalendarsController {
    type: String,
  })
  @Get("/:calendar/event/:eventUid")
+  @Get("/:calendar/events/:eventUid")
  @HttpCode(HttpStatus.OK)
  @UseGuards(ApiAuthGuard, PermissionsGuard)
  @ApiHeader(API_KEY_OR_ACCESS_TOKEN_HEADER)
@@ -54,4 +66,42 @@ export class CalUnifiedCalendarsController {
      data: transformedEvent,
    };
  }
+
+  @ApiParam({
+    name: "calendar",
+    enum: [GOOGLE_CALENDAR],
+    type: String,
+  })
+  @ApiParam({
+    name: "eventUid",
+    description:
+      "The Google Calendar event ID. You can retrieve this by getting booking references from the following endpoints:\n\n- For team events: https://cal.com/docs/api-reference/v2/orgs-teams-bookings/get-booking-references-for-a-booking\n\n- For user events: https://cal.com/docs/api-reference/v2/bookings/get-booking-references-for-a-booking",
+    type: String,
+  })
+  @Patch("/:calendar/events/:eventUid")
+  @HttpCode(HttpStatus.OK)
+  @UseGuards(ApiAuthGuard, PermissionsGuard)
+  @ApiHeader(API_KEY_OR_ACCESS_TOKEN_HEADER)
+  @ApiOperation({
+    summary: "Update meeting details in calendar",
+    description: "Updates event information in the specified calendar provider",
+  })
+  async updateCalendarEvent(
+    @Param("calendar") calendar: string,
+    @Param("eventUid") eventUid: string,
+    @Body() updateData: UpdateUnifiedCalendarEventInput
+  ): Promise<GetUnifiedCalendarEventOutput> {
+    if (calendar !== GOOGLE_CALENDAR) {
+      throw new BadRequestException("Event updates are currently only available for Google Calendar");
+    }
+
+    const updatedEvent = await this.googleCalendarService.updateEventDetails(eventUid, updateData);
+
+    const transformedEvent = new GoogleCalendarEventOutputPipe().transform(updatedEvent);
+
+    return {
+      status: SUCCESS_STATUS,
+      data: transformedEvent,
+    };
+  }
 }
@@ -0,0 +1,134 @@
+import { ApiPropertyOptional } from "@nestjs/swagger";
+import { Type } from "class-transformer";
+import { IsISO8601, IsOptional, IsString, ValidateNested, IsEnum, IsArray } from "class-validator";
+
+import { CalendarEventStatus, CalendarEventResponseStatus } from "../outputs/get-unified-calendar-event.output";
+
+export class UpdateCalendarEventAttendee {
+  @IsString()
+  @ApiPropertyOptional({
+    type: String,
+    description: "Email address of the attendee",
+  })
+  email!: string;
+
+  @IsString()
+  @IsOptional()
+  @ApiPropertyOptional({
+    type: String,
+    description: "Display name of the attendee",
+  })
+  name?: string;
+
+  @IsEnum(CalendarEventResponseStatus)
+  @IsOptional()
+  @ApiPropertyOptional({
+    enum: CalendarEventResponseStatus,
+    enumName: "CalendarEventResponseStatus",
+    nullable: true,
+    description: "Response status of the attendee",
+  })
+  responseStatus?: CalendarEventResponseStatus | null;
+
+  @IsOptional()
+  @ApiPropertyOptional({
+    nullable: true,
+    description: "Indicates if this attendee is the current user",
+  })
+  self?: boolean;
+
+  @IsOptional()
+  @ApiPropertyOptional({
+    nullable: true,
+    description: "Indicates if this attendee's attendance is optional",
+  })
+  optional?: boolean;
+
+  @IsOptional()
+  @ApiPropertyOptional({
+    nullable: true,
+    description: "Indicates if this attendee is the host",
+  })
+  host?: boolean;
+
+}
+
+export class UpdateDateTimeWithZone {
+  @IsISO8601()
+  @IsOptional()
+  @ApiPropertyOptional({ type: "string", format: "date-time" })
+  time?: string;
+
+  @IsString()
+  @IsOptional()
+  @ApiPropertyOptional()
+  timeZone?: string;
+}
+
+export class UpdateUnifiedCalendarEventInput {
+  @ValidateNested()
+  @Type(() => UpdateDateTimeWithZone)
+  @IsOptional()
+  @ApiPropertyOptional({
+    type: "object",
+    properties: {
+      time: { type: "string", format: "date-time" },
+      timeZone: { type: "string" },
+    },
+    description: "Start date and time of the calendar event with timezone information",
+  })
+  start?: UpdateDateTimeWithZone;
+
+  @ValidateNested()
+  @Type(() => UpdateDateTimeWithZone)
+  @IsOptional()
+  @ApiPropertyOptional({
+    type: "object",
+    properties: {
+      time: { type: "string", format: "date-time" },
+      timeZone: { type: "string" },
+    },
+    description: "End date and time of the calendar event with timezone information",
+  })
+  end?: UpdateDateTimeWithZone;
+
+  @IsString()
+  @IsOptional()
+  @ApiPropertyOptional({
+    type: String,
+    description: "Title of the calendar event",
+  })
+  title?: string;
+
+  @IsString()
+  @IsOptional()
+  @ApiPropertyOptional({
+    type: String,
+    nullable: true,
+    description: "Detailed description of the calendar event",
+  })
+  description?: string | null;
+
+  @IsOptional()
+  @IsArray()
+  @ValidateNested({ each: true })
+  @Type(() => UpdateCalendarEventAttendee)
+  @ApiPropertyOptional({
+    type: [UpdateCalendarEventAttendee],
+    nullable: true,
+    description:
+      "List of attendees. CAUTION: You must pass the entire array with all updated values. Any attendees not included in this array will be removed from the event.",
+  })
+  attendees?: UpdateCalendarEventAttendee[];
+
+  @IsEnum(CalendarEventStatus)
+  @IsOptional()
+  @ApiPropertyOptional({
+    enum: CalendarEventStatus,
+    enumName: "CalendarEventStatus",
+    nullable: true,
+    description: "Status of the event (accepted, pending, declined, cancelled)",
+    example: CalendarEventStatus.ACCEPTED,
+  })
+  status?: CalendarEventStatus | null;
+}
@@ -225,6 +225,22 @@ export class CalendarEventHost {
  responseStatus!: CalendarEventResponseStatus | null;
 }

+export class calendarEventOwner {
+  @IsString()
+  @ApiProperty({
+    description: "Email address of the event host",
+  })
+  email!: string;
+
+  @IsString()
+  @IsOptional()
+  @ApiPropertyOptional({
+    nullable: true,
+    description: "Display name of the event host",
+  })
+  name?: string;
+}
+
 export class CalendarEventAttendee {
  @IsString()
  @ApiProperty({
@@ -264,6 +280,14 @@ export class CalendarEventAttendee {
    description: "Indicates if this attendee's attendance is optional",
  })
  optional?: boolean;
+
+
+  @IsOptional()
+  @ApiPropertyOptional({
+    nullable: true,
+    description: "Indicates if this attendee is the host",
+  })
+  host?: boolean;
 }

 export class DateTimeWithZone {
@@ -384,6 +408,16 @@ export class UnifiedCalendarEventOutput {
  })
  hosts?: CalendarEventHost[];

+  @IsOptional()
+  @ValidateNested({ each: true })
+  @Type(() => calendarEventOwner)
+  @ApiPropertyOptional({
+    type: calendarEventOwner,
+    nullable: true,
+    description: "The calendar account that owns this event. This is the primary calendar where the event is stored and cannot be modified without appropriate permissions. Changing this would require moving the event to a different calendar",
+  })
+  calendarEventOwner?: calendarEventOwner;
+
  @IsEnum(CALENDARS)
  @ApiProperty({
    enum: CALENDARS,
@@ -0,0 +1,103 @@
+import { GoogleCalendarEventResponse } from "../get-calendar-event-details-output-pipe";
+
+export const createGoogleCalendarEventFixture = (
+  overrides: Partial<GoogleCalendarEventResponse> = {}
+): GoogleCalendarEventResponse => {
+  const baseEvent: GoogleCalendarEventResponse = {
+    kind: "calendar#event",
+    etag: "test-etag",
+    id: "test-event-id",
+    status: "confirmed",
+    htmlLink: "https://calendar.google.com/event",
+    created: "2024-01-01T00:00:00Z",
+    updated: "2024-01-01T00:00:00Z",
+    summary: "Test Meeting",
+    description: "Test description",
+    creator: {
+      email: "creator@example.com",
+      displayName: "Creator Name",
+    },
+    organizer: {
+      email: "organizer@example.com",
+      displayName: "Organizer Name",
+    },
+    start: {
+      dateTime: "2024-01-15T10:00:00Z",
+      timeZone: "America/New_York",
+    },
+    end: {
+      dateTime: "2024-01-15T11:00:00Z",
+      timeZone: "America/New_York",
+    },
+    iCalUID: "test-ical-uid",
+    sequence: 0,
+    attendees: [
+      {
+        email: "attendee@example.com",
+        displayName: "Attendee Name",
+        responseStatus: "accepted",
+        organizer: false,
+      },
+      {
+        email: "organizer@example.com",
+        displayName: "Organizer Name",
+        responseStatus: "accepted",
+        organizer: true,
+      },
+    ],
+    conferenceData: {
+      conferenceId: "abc-def-ghi",
+      entryPoints: [
+        {
+          entryPointType: "video",
+          uri: "https://meet.google.com/abc-def-ghi",
+          label: "meet.google.com/abc-def-ghi",
+        },
+      ],
+      conferenceSolution: {
+        key: {
+          type: "hangoutsMeet",
+        },
+        name: "Google Meet",
+        iconUri:
+          "https://fonts.gstatic.com/s/i/productlogos/meet_2020q4/v6/web-512dp/logo_meet_2020q4_color_2x_web_512dp.png",
+      },
+    },
+    hangoutLink: "https://meet.google.com/abc-def-ghi",
+  };
+
+  return { ...baseEvent, ...overrides };
+};
+
+export const googleEventWithConferenceData = createGoogleCalendarEventFixture({
+  conferenceData: {
+    conferenceId: "test-conference-id",
+    entryPoints: [
+      {
+        entryPointType: "video",
+        uri: "https://meet.google.com/abc-def-ghi",
+        label: "Google Meet",
+        pin: "123456",
+        regionCode: "US",
+      },
+      {
+        entryPointType: "phone",
+        uri: "tel:+1-555-123-4567",
+        label: "Phone",
+        pin: "789012",
+      },
+    ],
+  },
+});
+
+export const googleEventWithLocationOnly = createGoogleCalendarEventFixture({
+  location: "123 Main St, City, State",
+  conferenceData: undefined,
+  hangoutLink: undefined,
+});
+
+export const googleEventWithHangoutLink = createGoogleCalendarEventFixture({
+  hangoutLink: "https://hangouts.google.com/call/abc123",
+  conferenceData: undefined,
+  location: undefined,
+});
@@ -0,0 +1,201 @@
+import {
+  CalendarEventStatus,
+  CalendarEventResponseStatus,
+} from "@/modules/cal-unified-calendars/outputs/get-unified-calendar-event.output";
+
+import {
+  createGoogleCalendarEventFixture,
+  googleEventWithConferenceData,
+  googleEventWithLocationOnly,
+  googleEventWithHangoutLink,
+} from "./__fixtures__/google-calendar-event.fixture";
+import {
+  GoogleCalendarEventOutputPipe,
+  GoogleCalendarEventResponse,
+} from "./get-calendar-event-details-output-pipe";
+
+describe("GoogleCalendarEventOutputPipe", () => {
+  let pipe: GoogleCalendarEventOutputPipe;
+  let sharedGoogleEvent: GoogleCalendarEventResponse;
+
+  beforeAll(() => {
+    sharedGoogleEvent = createGoogleCalendarEventFixture();
+  });
+
+  beforeEach(() => {
+    pipe = new GoogleCalendarEventOutputPipe();
+  });
+
+  describe("transform", () => {
+    it("should transform Google Calendar event to unified format", () => {
+      const result = pipe.transform(sharedGoogleEvent);
+
+      expect(result.id).toBe("test-event-id");
+      expect(result.title).toBe("Test Meeting");
+      expect(result.description).toBe("Test description");
+      expect(result.source).toBe("google");
+      expect(result.status).toBe(CalendarEventStatus.ACCEPTED);
+      expect(result.start.time).toBe("2024-01-15T10:00:00Z");
+      expect(result.start.timeZone).toBe("America/New_York");
+      expect(result.end.time).toBe("2024-01-15T11:00:00Z");
+      expect(result.end.timeZone).toBe("America/New_York");
+      expect(result.attendees).toHaveLength(2);
+    });
+  });
+
+  describe("transformDateTimeWithZone", () => {
+    it("should transform Google date time to unified format", () => {
+      const googleDateTime = {
+        dateTime: "2024-01-15T10:00:00Z",
+        timeZone: "America/New_York",
+      };
+
+      const result = pipe["transformDateTimeWithZone"](googleDateTime);
+
+      expect(result.time).toBe("2024-01-15T10:00:00Z");
+      expect(result.timeZone).toBe("America/New_York");
+    });
+  });
+
+  describe("transformAttendeeResponseStatus", () => {
+    it("should transform accepted status", () => {
+      const result = pipe["transformAttendeeResponseStatus"]("accepted");
+      expect(result).toBe(CalendarEventResponseStatus.ACCEPTED);
+    });
+
+    it("should transform tentative status", () => {
+      const result = pipe["transformAttendeeResponseStatus"]("tentative");
+      expect(result).toBe(CalendarEventResponseStatus.PENDING);
+    });
+
+    it("should transform declined status", () => {
+      const result = pipe["transformAttendeeResponseStatus"]("declined");
+      expect(result).toBe(CalendarEventResponseStatus.DECLINED);
+    });
+
+    it("should transform needsaction status", () => {
+      const result = pipe["transformAttendeeResponseStatus"]("needsaction");
+      expect(result).toBe(CalendarEventResponseStatus.NEEDS_ACTION);
+    });
+
+    it("should handle case insensitive status", () => {
+      const result = pipe["transformAttendeeResponseStatus"]("ACCEPTED");
+      expect(result).toBe(CalendarEventResponseStatus.ACCEPTED);
+    });
+
+    it("should handle unknown status", () => {
+      const result = pipe["transformAttendeeResponseStatus"]("unknown");
+      expect(result).toBeNull();
+    });
+
+    it("should handle null status", () => {
+      const result = pipe["transformAttendeeResponseStatus"](undefined);
+      expect(result).toBeNull();
+    });
+  });
+
+  describe("transformEventStatus", () => {
+    it("should transform confirmed status", () => {
+      const result = pipe["transformEventStatus"]("confirmed");
+      expect(result).toBe(CalendarEventStatus.ACCEPTED);
+    });
+
+    it("should transform tentative status", () => {
+      const result = pipe["transformEventStatus"]("tentative");
+      expect(result).toBe(CalendarEventStatus.PENDING);
+    });
+
+    it("should transform cancelled status", () => {
+      const result = pipe["transformEventStatus"]("cancelled");
+      expect(result).toBe(CalendarEventStatus.CANCELLED);
+    });
+
+    it("should handle case insensitive status", () => {
+      const result = pipe["transformEventStatus"]("CONFIRMED");
+      expect(result).toBe(CalendarEventStatus.ACCEPTED);
+    });
+
+    it("should handle unknown status", () => {
+      const result = pipe["transformEventStatus"]("unknown");
+      expect(result).toBeNull();
+    });
+
+    it("should handle null status", () => {
+      const result = pipe["transformEventStatus"](undefined);
+      expect(result).toBeNull();
+    });
+  });
+
+  describe("transformOrganizer", () => {
+    it("should return calendarEventOwner organizer exist", () => {
+      const eventWithoutOrganizerAttendees = createGoogleCalendarEventFixture({
+        organizer: { email: "organizer@example.com" },
+        attendees: [
+          {
+            email: "attendee@example.com",
+            displayName: "Regular Attendee",
+            responseStatus: "accepted",
+            organizer: false,
+          },
+        ],
+      });
+
+      const result = pipe.transform(eventWithoutOrganizerAttendees);
+
+      expect(result?.calendarEventOwner?.email).toBe("organizer@example.com");
+    });
+  });
+
+  describe("transformLocations", () => {
+    it("should transform conference data entry points", () => {
+      const result = pipe["transformLocations"](googleEventWithConferenceData);
+
+      expect(result).toHaveLength(2);
+      expect(result[0]).toEqual({
+        type: "video",
+        url: "https://meet.google.com/abc-def-ghi",
+        label: "Google Meet",
+        pin: "123456",
+        regionCode: "US",
+      });
+      expect(result[1]).toEqual({
+        type: "phone",
+        url: "tel:+1-555-123-4567",
+        label: "Phone",
+        pin: "789012",
+        regionCode: undefined,
+      });
+    });
+
+    it("should fallback to location field", () => {
+      const result = pipe["transformLocations"](googleEventWithLocationOnly);
+
+      expect(result).toHaveLength(1);
+      expect(result[0]).toEqual({
+        type: "video",
+        url: "123 Main St, City, State",
+      });
+    });
+
+    it("should fallback to hangout link", () => {
+      const result = pipe["transformLocations"](googleEventWithHangoutLink);
+
+      expect(result).toHaveLength(1);
+      expect(result[0]).toEqual({
+        type: "video",
+        url: "https://hangouts.google.com/call/abc123",
+      });
+    });
+
+    it("should return empty array when no location data", () => {
+      const eventWithoutLocation = createGoogleCalendarEventFixture({
+        location: undefined,
+        conferenceData: undefined,
+        hangoutLink: undefined,
+      });
+
+      const result = pipe["transformLocations"](eventWithoutLocation);
+      expect(result).toEqual([]);
+    });
+  });
+});
@@ -3,7 +3,7 @@ import {
  CalendarEventStatus,
  DateTimeWithZone,
  UnifiedCalendarEventOutput,
-} from "@/modules/cal-unified-calendars/outputs/get-unified-calendar-event";
+} from "@/modules/cal-unified-calendars/outputs/get-unified-calendar-event.output";
 import { PipeTransform, Injectable } from "@nestjs/common";

 export interface GoogleCalendarEventResponse {
@@ -94,14 +94,12 @@ export class GoogleCalendarEventOutputPipe
    calendarEvent.locations = this.transformLocations(googleEvent);

    if (googleEvent.attendees && googleEvent.attendees.length > 0) {
-      calendarEvent.attendees = googleEvent.attendees
-        .filter((attendee) => !attendee.organizer)
-        .map((attendee) => {
+      calendarEvent.attendees = googleEvent.attendees.map((attendee) => {
          return {
            email: attendee.email,
            name: attendee.displayName,
            responseStatus: this.transformAttendeeResponseStatus(attendee.responseStatus),
-            organizer: attendee.organizer,
+            host: attendee.organizer,
            self: attendee.self,
            optional: attendee.optional,
          };
@@ -110,7 +108,8 @@ export class GoogleCalendarEventOutputPipe

    calendarEvent.status = this.transformEventStatus(googleEvent.status);

-    calendarEvent.hosts = this.transformHosts(googleEvent);
+    calendarEvent.calendarEventOwner = googleEvent.organizer 
+    calendarEvent.hosts = this.transformHosts(googleEvent) 

    calendarEvent.source = "google";

@@ -196,6 +195,8 @@ export class GoogleCalendarEventOutputPipe
          regionCode: entryPoint.regionCode,
        };
      });
+    } else if (googleEvent.location) {
+      return [{ type: "video", url: googleEvent.location }];
    } else if (googleEvent.hangoutLink) {
      return [{ type: "video", url: googleEvent.hangoutLink }];
    }
@@ -0,0 +1,121 @@
+import { GoogleCalendarEventResponse } from "@/modules/cal-unified-calendars/pipes/get-calendar-event-details-output-pipe";
+import { Injectable } from "@nestjs/common";
+
+import {
+  UpdateUnifiedCalendarEventInput,
+  UpdateDateTimeWithZone,
+} from "../inputs/update-unified-calendar-event.input";
+import { CalendarEventResponseStatus, CalendarEventStatus } from "../outputs/get-unified-calendar-event.output";
+
+// Common interfaces for Google Calendar types
+interface GoogleCalendarDateTime {
+  dateTime: string;
+  timeZone: string;
+}
+
+interface GoogleCalendarAttendee {
+  email: string;
+  displayName?: string;
+  responseStatus: string;
+  organizer?: boolean;
+}
+
+interface GoogleCalendarEventInputTransform {
+  transform(
+    updateData: UpdateUnifiedCalendarEventInput,
+    fetchedEvent?: GoogleCalendarEventResponse | null
+  ): any;
+}
+
+@Injectable()
+export class GoogleCalendarEventInputPipe implements GoogleCalendarEventInputTransform {
+  transform(
+    updateData: UpdateUnifiedCalendarEventInput,
+  ): any {
+    const updatePayload: any = {};
+
+    if (updateData.title !== undefined) {
+      updatePayload.summary = updateData.title;
+    }
+
+    if (updateData.description !== undefined) {
+      updatePayload.description = updateData.description;
+    }
+
+    if (updateData.start) {
+      updatePayload.start = this.transformDateTimeWithZone(updateData.start);
+    }
+
+    if (updateData.end) {
+      updatePayload.end = this.transformDateTimeWithZone(updateData.end);
+    }
+
+    if (updateData.attendees !== undefined) {
+      updatePayload.attendees = this.transformAttendees(
+        updateData.attendees,
+      );
+    }
+
+    if (updateData.status !== undefined) {
+      updatePayload.status = this.transformEventStatus(updateData.status);
+    }
+
+    return updatePayload;
+  }
+
+  private transformDateTimeWithZone(dateTime: UpdateDateTimeWithZone): GoogleCalendarDateTime {
+    return {
+      dateTime: dateTime.time || "",
+      timeZone: dateTime.timeZone || "",
+    };
+  }
+
+  private transformAttendees(
+    inputAttendees: NonNullable<UpdateUnifiedCalendarEventInput["attendees"]>,
+  ): GoogleCalendarAttendee[] {
+      return  inputAttendees.map((attendee) => {
+          return {
+            email: attendee.email,
+            displayName: attendee.name,
+            responseStatus: this.transformResponseStatus(attendee.responseStatus),
+            organizer: attendee.host,
+            self: attendee.self,
+            optional: attendee.optional,
+          };
+        });
+  }
+
+  private transformResponseStatus(responseStatus?: CalendarEventResponseStatus | null): string {
+    if (!responseStatus) return "needsAction";
+
+    switch (responseStatus) {
+      case CalendarEventResponseStatus.ACCEPTED:
+        return "accepted";
+      case CalendarEventResponseStatus.PENDING:
+        return "tentative";
+      case CalendarEventResponseStatus.DECLINED:
+        return "declined";
+      case CalendarEventResponseStatus.NEEDS_ACTION:
+        return "needsAction";
+      default:
+        return "needsAction";
+    }
+  }
+
+  private transformEventStatus(status?: CalendarEventStatus | null): string {
+    if (!status) return "confirmed";
+
+    switch (status) {
+      case CalendarEventStatus.ACCEPTED:
+        return "confirmed";
+      case CalendarEventStatus.PENDING:
+        return "tentative";
+      case CalendarEventStatus.CANCELLED:
+        return "cancelled";
+      case CalendarEventStatus.DECLINED:
+        return "cancelled";
+      default:
+        return "confirmed";
+    }
+  }
+}
@@ -0,0 +1,222 @@
+import {
+  UpdateUnifiedCalendarEventInput,
+  UpdateDateTimeWithZone,
+} from "../inputs/update-unified-calendar-event.input";
+import { CalendarEventResponseStatus, CalendarEventStatus } from "../outputs/get-unified-calendar-event.output";
+import { GoogleCalendarEventResponse } from "./get-calendar-event-details-output-pipe";
+import { GoogleCalendarEventInputPipe } from "./google-calendar-event-input-pipe";
+
+describe("GoogleCalendarEventInputPipe", () => {
+  let pipe: GoogleCalendarEventInputPipe;
+  let sharedGoogleEvent: GoogleCalendarEventResponse;
+
+  beforeAll(() => {
+    sharedGoogleEvent = {
+      kind: "calendar#event",
+      etag: "test-etag",
+      id: "test-event-id",
+      status: "confirmed",
+      htmlLink: "https://calendar.google.com/event",
+      created: "2024-01-01T00:00:00Z",
+      updated: "2024-01-01T00:00:00Z",
+      summary: "Test Meeting",
+      description: "Test description",
+      start: {
+        dateTime: "2024-01-15T10:00:00Z",
+        timeZone: "America/New_York",
+      },
+      end: {
+        dateTime: "2024-01-15T11:00:00Z",
+        timeZone: "America/New_York",
+      },
+      iCalUID: "test-ical-uid",
+      sequence: 0,
+      attendees: [
+        {
+          email: "attendee1@example.com",
+          displayName: "Attendee One",
+          responseStatus: "accepted",
+          organizer: false,
+        },
+        {
+          email: "attendee2@example.com",
+          displayName: "Attendee Two",
+          responseStatus: "needsAction",
+          organizer: false,
+        },
+        {
+          email: "organizer@example.com",
+          displayName: "Organizer",
+          responseStatus: "accepted",
+          organizer: true,
+        },
+      ],
+      creator: {
+        email: "organizer@example.com",
+        displayName: "Organizer",
+      },
+      organizer: {
+        email: "organizer@example.com",
+        displayName: "Organizer",
+      },
+    };
+  });
+
+  beforeEach(() => {
+    pipe = new GoogleCalendarEventInputPipe();
+  });
+
+  describe("transform", () => {
+    it("should transform basic event fields", () => {
+      const input: UpdateUnifiedCalendarEventInput = {
+        title: "Updated Meeting",
+        description: "Updated description",
+        start: {
+          time: "2024-01-15T10:00:00Z",
+          timeZone: "America/New_York",
+        },
+        end: {
+          time: "2024-01-15T11:00:00Z",
+          timeZone: "America/New_York",
+        },
+        status: CalendarEventStatus.ACCEPTED,
+      };
+
+      const expectedOutput = {
+        summary: "Updated Meeting",
+        description: "Updated description",
+        start: {
+          dateTime: "2024-01-15T10:00:00Z",
+          timeZone: "America/New_York",
+        },
+        end: {
+          dateTime: "2024-01-15T11:00:00Z",
+          timeZone: "America/New_York",
+        },
+        status: "confirmed",
+      };
+
+      const result = pipe.transform(input);
+      expect(result).toEqual(expectedOutput);
+    });
+
+    it("should handle partial updates", () => {
+      const input: UpdateUnifiedCalendarEventInput = {
+        title: "Only Title Update",
+      };
+
+      const expectedOutput = {
+        summary: "Only Title Update",
+      };
+
+      const result = pipe.transform(input);
+      expect(result).toEqual(expectedOutput);
+    });
+
+    it("should handle null description", () => {
+      const input: UpdateUnifiedCalendarEventInput = {
+        description: null,
+      };
+
+      const expectedOutput = {
+        description: null,
+      };
+
+      const result = pipe.transform(input);
+      expect(result).toEqual(expectedOutput);
+    });
+  });
+
+  describe("transformDateTimeWithZone", () => {
+    it("should transform date time with timezone", () => {
+      const input: UpdateDateTimeWithZone = {
+        time: "2024-01-15T10:00:00Z",
+        timeZone: "America/New_York",
+      };
+
+      const expectedOutput = {
+        dateTime: "2024-01-15T10:00:00Z",
+        timeZone: "America/New_York",
+      };
+
+      const result = pipe["transformDateTimeWithZone"](input);
+      expect(result).toEqual(expectedOutput);
+    });
+
+    it("should handle empty time and timezone", () => {
+      const input: UpdateDateTimeWithZone = {};
+
+      const expectedOutput = {
+        dateTime: "",
+        timeZone: "",
+      };
+
+      const result = pipe["transformDateTimeWithZone"](input);
+      expect(result).toEqual(expectedOutput);
+    });
+  });
+
+  describe("transformResponseStatus", () => {
+    it("should transform ACCEPTED status", () => {
+      const result = pipe["transformResponseStatus"](CalendarEventResponseStatus.ACCEPTED);
+      expect(result).toBe("accepted");
+    });
+
+    it("should transform PENDING status", () => {
+      const result = pipe["transformResponseStatus"](CalendarEventResponseStatus.PENDING);
+      expect(result).toBe("tentative");
+    });
+
+    it("should transform DECLINED status", () => {
+      const result = pipe["transformResponseStatus"](CalendarEventResponseStatus.DECLINED);
+      expect(result).toBe("declined");
+    });
+
+    it("should transform NEEDS_ACTION status", () => {
+      const result = pipe["transformResponseStatus"](CalendarEventResponseStatus.NEEDS_ACTION);
+      expect(result).toBe("needsAction");
+    });
+
+    it("should handle null status", () => {
+      const result = pipe["transformResponseStatus"](null);
+      expect(result).toBe("needsAction");
+    });
+
+    it("should handle undefined status", () => {
+      const result = pipe["transformResponseStatus"](undefined);
+      expect(result).toBe("needsAction");
+    });
+  });
+
+  describe("transformEventStatus", () => {
+    it("should transform ACCEPTED status", () => {
+      const result = pipe["transformEventStatus"](CalendarEventStatus.ACCEPTED);
+      expect(result).toBe("confirmed");
+    });
+
+    it("should transform PENDING status", () => {
+      const result = pipe["transformEventStatus"](CalendarEventStatus.PENDING);
+      expect(result).toBe("tentative");
+    });
+
+    it("should transform CANCELLED status", () => {
+      const result = pipe["transformEventStatus"](CalendarEventStatus.CANCELLED);
+      expect(result).toBe("cancelled");
+    });
+
+    it("should transform DECLINED status", () => {
+      const result = pipe["transformEventStatus"](CalendarEventStatus.DECLINED);
+      expect(result).toBe("cancelled");
+    });
+
+    it("should handle null status", () => {
+      const result = pipe["transformEventStatus"](null);
+      expect(result).toBe("confirmed");
+    });
+
+    it("should handle undefined status", () => {
+      const result = pipe["transformEventStatus"](undefined);
+      expect(result).toBe("confirmed");
+    });
+  });
+});
@@ -10,7 +10,8 @@ import { JWT } from "googleapis-common";

 import { DelegationCredentialRepository, OAuth2UniversalSchema } from "@calcom/platform-libraries/app-store";

-import { UnifiedCalendarEventOutput } from "../outputs/get-unified-calendar-event";
+import { UpdateUnifiedCalendarEventInput } from "../inputs/update-unified-calendar-event.input";
+import { GoogleCalendarEventInputPipe } from "../pipes/google-calendar-event-input-pipe";

@Injectable()
 export class GoogleCalendarService {
@@ -53,6 +54,44 @@ export class GoogleCalendarService {
    }
  }

+  async updateEventDetails(
+    eventUid: string,
+    updateData: UpdateUnifiedCalendarEventInput
+  ): Promise<GoogleCalendarEventResponse> {
+    const bookingReference =
+      await this.bookingReferencesRepository.getBookingReferencesIncludeSensitiveCredentials(eventUid);
+
+    if (!bookingReference) {
+      throw new NotFoundException("Booking reference not found");
+    }
+
+    const ownerUserEmail = bookingReference?.booking?.user?.email;
+
+    const calendar = await this.getAuthorizedCalendarInstance(
+      ownerUserEmail,
+      bookingReference.credential?.key,
+      bookingReference.delegationCredential
+    );
+
+
+    const updatePayload = new GoogleCalendarEventInputPipe().transform(updateData);
+
+    try {
+      const event = await calendar.events.patch({
+        calendarId: bookingReference?.externalCalendarId ?? "primary",
+        eventId: bookingReference?.uid,
+        requestBody: updatePayload,
+      });
+
+      if (!event.data) {
+        throw new NotFoundException("Failed to update meeting");
+      }
+      return event.data as GoogleCalendarEventResponse;
+    } catch (error) {
+      throw new NotFoundException("Failed to update meeting details");
+    }
+  }
+
  /**
   * Gets an authorized Google Calendar instance
   * Tries delegation credentials first, falls back to direct OAuth
@@ -40,5 +40,3 @@ export class EventTypeOwnershipGuard implements CanActivate {
    return true;
  }
 }
-
-
@@ -8563,6 +8563,69 @@
        ]
      }
    },
+    "/v2/calendars/{calendar}/events/{eventUid}": {
+      "patch": {
+        "operationId": "CalUnifiedCalendarsController_updateCalendarEvent",
+        "summary": "Update meeting details in calendar",
+        "description": "Updates event information in the specified calendar provider",
+        "parameters": [
+          {
+            "name": "calendar",
+            "required": true,
+            "in": "path",
+            "schema": {
+              "enum": [
+                "google"
+              ],
+              "type": "string"
+            }
+          },
+          {
+            "name": "eventUid",
+            "required": true,
+            "in": "path",
+            "description": "The Google Calendar event ID. You can retrieve this by getting booking references from the following endpoints:\n\n- For team events: https://cal.com/docs/api-reference/v2/orgs-teams-bookings/get-booking-references-for-a-booking\n\n- For user events: https://cal.com/docs/api-reference/v2/bookings/get-booking-references-for-a-booking",
+            "schema": {
+              "type": "string"
+            }
+          },
+          {
+            "name": "Authorization",
+            "in": "header",
+            "description": "value must be `Bearer <token>` where `<token>` is api key prefixed with cal_ or managed user access token",
+            "required": true,
+            "schema": {
+              "type": "string"
+            }
+          }
+        ],
+        "requestBody": {
+          "required": true,
+          "content": {
+            "application/json": {
+              "schema": {
+                "$ref": "#/components/schemas/UpdateUnifiedCalendarEventInput"
+              }
+            }
+          }
+        },
+        "responses": {
+          "200": {
+            "description": "",
+            "content": {
+              "application/json": {
+                "schema": {
+                  "$ref": "#/components/schemas/GetUnifiedCalendarEventOutput"
+                }
+              }
+            }
+          }
+        },
+        "tags": [
+          "Cal Unified Calendars"
+        ]
+      }
+    },
    "/v2/calendars/ics-feed/save": {
      "post": {
        "operationId": "CalendarsController_createIcsFeed",
@@ -28782,7 +28845,7 @@
      },
      "CalendarEventResponseStatus": {
        "type": "string",
-        "description": "Host's response to the invitation",
+        "description": "Response status of the attendee",
        "enum": [
          "accepted",
          "pending",
@@ -28815,6 +28878,11 @@
            "type": "boolean",
            "nullable": true,
            "description": "Indicates if this attendee's attendance is optional"
+          },
+          "host": {
+            "type": "boolean",
+            "nullable": true,
+            "description": "Indicates if this attendee is the host"
          }
        },
        "required": [
@@ -28853,6 +28921,23 @@
          "email"
        ]
      },
+      "calendarEventOwner": {
+        "type": "object",
+        "properties": {
+          "email": {
+            "type": "string",
+            "description": "Email address of the event host"
+          },
+          "name": {
+            "type": "string",
+            "nullable": true,
+            "description": "Display name of the event host"
+          }
+        },
+        "required": [
+          "email"
+        ]
+      },
      "CalendarSource": {
        "type": "string",
        "description": "Calendar integration source (e.g., Google Calendar, Office 365, Apple Calendar). Currently only Google Calendar is supported.",
@@ -28949,6 +29034,15 @@
              "$ref": "#/components/schemas/CalendarEventHost"
            }
          },
+          "calendarEventOwner": {
+            "nullable": true,
+            "description": "The calendar account that owns this event. This is the primary calendar where the event is stored and cannot be modified without appropriate permissions. Changing this would require moving the event to a different calendar",
+            "allOf": [
+              {
+                "$ref": "#/components/schemas/calendarEventOwner"
+              }
+            ]
+          },
          "source": {
            "example": "google",
            "$ref": "#/components/schemas/CalendarSource"
@@ -28982,6 +29076,91 @@
          "data"
        ]
      },
+      "UpdateCalendarEventAttendee": {
+        "type": "object",
+        "properties": {
+          "email": {
+            "type": "string",
+            "description": "Email address of the attendee"
+          },
+          "name": {
+            "type": "string",
+            "description": "Display name of the attendee"
+          },
+          "responseStatus": {
+            "nullable": true,
+            "$ref": "#/components/schemas/CalendarEventResponseStatus"
+          },
+          "self": {
+            "type": "boolean",
+            "nullable": true,
+            "description": "Indicates if this attendee is the current user"
+          },
+          "optional": {
+            "type": "boolean",
+            "nullable": true,
+            "description": "Indicates if this attendee's attendance is optional"
+          },
+          "host": {
+            "type": "boolean",
+            "nullable": true,
+            "description": "Indicates if this attendee is the host"
+          }
+        }
+      },
+      "UpdateUnifiedCalendarEventInput": {
+        "type": "object",
+        "properties": {
+          "start": {
+            "type": "object",
+            "properties": {
+              "time": {
+                "type": "string",
+                "format": "date-time"
+              },
+              "timeZone": {
+                "type": "string"
+              }
+            },
+            "description": "Start date and time of the calendar event with timezone information"
+          },
+          "end": {
+            "type": "object",
+            "properties": {
+              "time": {
+                "type": "string",
+                "format": "date-time"
+              },
+              "timeZone": {
+                "type": "string"
+              }
+            },
+            "description": "End date and time of the calendar event with timezone information"
+          },
+          "title": {
+            "type": "string",
+            "description": "Title of the calendar event"
+          },
+          "description": {
+            "type": "string",
+            "nullable": true,
+            "description": "Detailed description of the calendar event"
+          },
+          "attendees": {
+            "nullable": true,
+            "description": "List of attendees. CAUTION: You must pass the entire array with all updated values. Any attendees not included in this array will be removed from the event.",
+            "type": "array",
+            "items": {
+              "$ref": "#/components/schemas/UpdateCalendarEventAttendee"
+            }
+          },
+          "status": {
+            "nullable": true,
+            "example": "accepted",
+            "$ref": "#/components/schemas/CalendarEventStatus"
+          }
+        }
+      },
      "RequestEmailVerificationInput": {
        "type": "object",
        "properties": {
@@ -5,9 +5,9 @@ import { SystemField } from "@calcom/features/bookings/lib/SystemField";
 import type { bookingResponsesDbSchema } from "@calcom/features/bookings/lib/getBookingResponsesSchema";
 import { contructEmailFromPhoneNumber } from "@calcom/lib/contructEmailFromPhoneNumber";
 import { getBookingWithResponses } from "@calcom/lib/getBooking";
+import { HttpError } from "@calcom/lib/http-error";
 import { eventTypeBookingFields } from "@calcom/prisma/zod-utils";
 import type { CalendarEvent } from "@calcom/types/Calendar";
-import { HttpError } from "@calcom/lib/http-error";

 export const getCalEventResponses = ({
  bookingFields,
@@ -327,7 +327,9 @@ export default class EventManager {
    }

    const isDedicated = evt.location ? isDedicatedIntegration(evt.location) : null;
-    const isMSTeamsWithOutlookCalendar = evt.location === MSTeamsLocationType && mainHostDestinationCalendar?.integration === "office365_calendar";
+    const isMSTeamsWithOutlookCalendar =
+      evt.location === MSTeamsLocationType &&
+      mainHostDestinationCalendar?.integration === "office365_calendar";

    const results: Array<EventResult<Exclude<Event, AdditionalInformation>>> = [];

@@ -1,4 +1,4 @@
-import { defineConfig, devices } from '@playwright/test';
+import { defineConfig, devices } from "@playwright/test";

 const DEFAULT_EXPECT_TIMEOUT = process.env.CI ? 30000 : 120000;
 const DEFAULT_TEST_TIMEOUT = process.env.CI ? 60000 : 240000;
@@ -12,35 +12,35 @@ export default defineConfig({
  timeout: DEFAULT_TEST_TIMEOUT,
  fullyParallel: true,
  reporter: [
-    ['list'],
-    ['html', { outputFolder: './test-results/reports/playwright-html-report', open: 'never' }],
+    ["list"],
+    ["html", { outputFolder: "./test-results/reports/playwright-html-report", open: "never" }],
  ],
-  outputDir: './test-results/results',
+  outputDir: "./test-results/results",
  use: {
-    baseURL: 'http://localhost:4322',
-    locale: 'en-US',
-    trace: 'retain-on-failure',
+    baseURL: "http://localhost:4322",
+    locale: "en-US",
+    trace: "retain-on-failure",
    headless,
  },
  projects: [
    {
-      name: '@calcom/base',
-      testDir: './tests',
+      name: "@calcom/base",
+      testDir: "./tests",
      testMatch: /.*\.e2e\.tsx?/,
      expect: {
        timeout: DEFAULT_EXPECT_TIMEOUT,
      },
      use: {
-        ...devices['Desktop Chrome'],
-        locale: 'en-US',
+        ...devices["Desktop Chrome"],
+        locale: "en-US",
      },
    },
  ],
  webServer: {
-    command: process.env.CI 
+    command: process.env.CI
      ? `yarn workspace @calcom/atoms dev-on && yarn workspace @calcom/atoms build && rm -f prisma/dev.db && yarn prisma db push && NEXT_PUBLIC_IS_E2E=1 NODE_ENV=test NEXT_PUBLIC_X_CAL_ID="${process.env.ATOMS_E2E_OAUTH_CLIENT_ID}" X_CAL_SECRET_KEY="${process.env.ATOMS_E2E_OAUTH_CLIENT_SECRET}" NEXT_PUBLIC_CALCOM_API_URL="${process.env.ATOMS_E2E_API_URL}" VITE_BOOKER_EMBED_OAUTH_CLIENT_ID="${process.env.ATOMS_E2E_OAUTH_CLIENT_ID_BOOKER_EMBED}" VITE_BOOKER_EMBED_API_URL="${process.env.ATOMS_E2E_API_URL}" ORGANIZATION_ID=${process.env.ATOMS_E2E_ORG_ID} yarn dev:e2e`
      : `rm -f prisma/dev.db && yarn prisma db push && yarn dev:e2e`,
-    url: 'http://localhost:4322',
+    url: "http://localhost:4322",
    timeout: 600_000,
    reuseExistingServer: !process.env.CI,
  },
@@ -1,19 +1,19 @@
-import { test, expect } from '@playwright/test';
+import { test, expect } from "@playwright/test";

-test('create event type using CreateEventTypeAtom', async ({ page }) => {
-  await page.goto('/');
+test("create event type using CreateEventTypeAtom", async ({ page }) => {
+  await page.goto("/");

-  await page.goto('/event-types');
+  await page.goto("/event-types");

-  await expect(page).toHaveURL('/event-types');
-  
-  await expect(page.locator('body')).toBeVisible();
+  await expect(page).toHaveURL("/event-types");

-  await page.fill('[data-testid="event-type-quick-chat"]', 'e2e event');
+  await expect(page.locator("body")).toBeVisible();

-  await page.fill('textarea[placeholder="A quick video meeting."]', 'This is an e2e test event description');
+  await page.fill('[data-testid="event-type-quick-chat"]', "e2e event");

-  await page.waitForSelector('button[type="submit"]:has-text("Continue")', { state: 'visible' });
+  await page.fill('textarea[placeholder="A quick video meeting."]', "This is an e2e test event description");
+
+  await page.waitForSelector('button[type="submit"]:has-text("Continue")', { state: "visible" });
  await page.click('button[type="submit"]:has-text("Continue")');

  await expect(page.locator('h1:has-text("E2e Event")')).toBeVisible();
@@ -128,5 +128,3 @@ export class DeletePrivateLinkOutput {
    message: string;
  };
 }
-
-