fix(messaging): emit channel and account deletion events from core metadata services (#21491)

/closes #21425

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packages/twenty-server/src/engine/metadata-modules/message-channel/constants/message-channel-deleted.constant.ts

@@ -0,0 +1 @@
+export const MESSAGE_CHANNEL_DELETED_EVENT = 'messageChannel_deleted';

packages/twenty-server/src/engine/metadata-modules/message-channel/message-channel-metadata.module.ts

@@ -8,6 +8,7 @@ import { MessageChannelMetadataService } from 'src/engine/metadata-modules/messa
 import { MessageChannelResolver } from 'src/engine/metadata-modules/message-channel/resolvers/message-channel.resolver';
 import { MessageFolderEntity } from 'src/engine/metadata-modules/message-folder/entities/message-folder.entity';
 import { PermissionsModule } from 'src/engine/metadata-modules/permissions/permissions.module';
+import { WorkspaceEventEmitterModule } from 'src/engine/workspace-event-emitter/workspace-event-emitter.module';
 import { MessagingImportManagerModule } from 'src/modules/messaging/message-import-manager/messaging-import-manager.module';
 
 @Module({
@@ -16,6 +17,7 @@ import { MessagingImportManagerModule } from 'src/modules/messaging/message-impo
     PermissionsModule,
     ConnectedAccountMetadataModule,
     MessagingImportManagerModule,
+    WorkspaceEventEmitterModule,
   ],
   providers: [
     MessageChannelMetadataService,

packages/twenty-server/src/engine/metadata-modules/message-channel/message-channel-metadata.service.ts

@@ -19,6 +19,7 @@ import {
 import { StorageDriverType } from 'src/engine/core-modules/file-storage/interfaces/file-storage.interface';
 import { TwentyConfigService } from 'src/engine/core-modules/twenty-config/twenty-config.service';
 import { ConnectedAccountMetadataService } from 'src/engine/metadata-modules/connected-account/connected-account-metadata.service';
+import { MESSAGE_CHANNEL_DELETED_EVENT } from 'src/engine/metadata-modules/message-channel/constants/message-channel-deleted.constant';
 import { CreateEmailGroupChannelOutput } from 'src/engine/metadata-modules/message-channel/dtos/create-email-group-channel.output';
 import { MessageChannelDTO } from 'src/engine/metadata-modules/message-channel/dtos/message-channel.dto';
 import { MessageChannelEntity } from 'src/engine/metadata-modules/message-channel/entities/message-channel.entity';
@@ -26,6 +27,8 @@ import {
   MessageChannelException,
   MessageChannelExceptionCode,
 } from 'src/engine/metadata-modules/message-channel/message-channel.exception';
+import { type MessageChannelDeletedEvent } from 'src/engine/metadata-modules/message-channel/types/message-channel-deleted.type';
+import { WorkspaceEventEmitter } from 'src/engine/workspace-event-emitter/workspace-event-emitter';
 import { INBOUND_EMAIL_LOCAL_PART_PREFIX } from 'src/modules/messaging/message-import-manager/drivers/inbound-email/constants/inbound-email-local-part-prefix.constant';
 import { INBOUND_EMAIL_LOCAL_PART_RANDOM_BYTES } from 'src/modules/messaging/message-import-manager/drivers/inbound-email/constants/inbound-email-local-part-random-bytes.constant';
 
@@ -36,6 +39,7 @@ export class MessageChannelMetadataService {
     private readonly repository: Repository<MessageChannelEntity>,
     private readonly connectedAccountMetadataService: ConnectedAccountMetadataService,
     private readonly twentyConfigService: TwentyConfigService,
+    private readonly workspaceEventEmitter: WorkspaceEventEmitter,
   ) {}
 
   async findAll(workspaceId: string): Promise<MessageChannelDTO[]> {
@@ -275,6 +279,12 @@ export class MessageChannelMetadataService {
 
     await this.repository.delete({ id, workspaceId });
 
+    this.workspaceEventEmitter.emitCustomBatchEvent<MessageChannelDeletedEvent>(
+      MESSAGE_CHANNEL_DELETED_EVENT,
+      [{ messageChannelId: id }],
+      workspaceId,
+    );
+
     return messageChannel;
   }
 }

packages/twenty-server/src/engine/metadata-modules/message-channel/types/message-channel-deleted.type.ts

@@ -0,0 +1,3 @@
+export type MessageChannelDeletedEvent = {
+  messageChannelId: string;
+};