fix(syncing-server): remove the dice roll on whether to inform the client on items changed (#950)

packages/syncing-server/src/Bootstrap/Container.ts

@@ -114,13 +114,7 @@ import { GetSharedVaults } from '../Domain/UseCase/SharedVaults/GetSharedVaults/
 import { CreateSharedVault } from '../Domain/UseCase/SharedVaults/CreateSharedVault/CreateSharedVault'
 import { DeleteSharedVault } from '../Domain/UseCase/SharedVaults/DeleteSharedVault/DeleteSharedVault'
 import { CreateSharedVaultFileValetToken } from '../Domain/UseCase/SharedVaults/CreateSharedVaultFileValetToken/CreateSharedVaultFileValetToken'
-import {
-  DeterministicSelector,
-  SelectorInterface,
-  SharedVaultValetTokenData,
-  TokenEncoder,
-  TokenEncoderInterface,
-} from '@standardnotes/security'
+import { SharedVaultValetTokenData, TokenEncoder, TokenEncoderInterface } from '@standardnotes/security'
 import { SharedVaultHttpRepresentation } from '../Mapping/Http/SharedVaultHttpRepresentation'
 import { SharedVaultHttpMapper } from '../Mapping/Http/SharedVaultHttpMapper'
 import { SharedVaultInviteHttpRepresentation } from '../Mapping/Http/SharedVaultInviteHttpRepresentation'
@@ -206,10 +200,6 @@ export class ContainerConfigLoader {
     }
     container.bind<winston.Logger>(TYPES.Sync_Logger).toConstantValue(logger)
 
-    container
-      .bind<SelectorInterface<number>>(TYPES.Sync_NumberSelector)
-      .toConstantValue(new DeterministicSelector<number>())
-
     const appDataSource = new AppDataSource({ env, runMigrations: this.mode === 'server' })
     await appDataSource.initialize()
 
@@ -618,7 +608,6 @@ export class ContainerConfigLoader {
           container.get<UpdateExistingItem>(TYPES.Sync_UpdateExistingItem),
           container.get<SendEventToClient>(TYPES.Sync_SendEventToClient),
           container.get<DomainEventFactoryInterface>(TYPES.Sync_DomainEventFactory),
-          container.get<SelectorInterface<number>>(TYPES.Sync_NumberSelector),
           container.get<Logger>(TYPES.Sync_Logger),
         ),
       )

packages/syncing-server/src/Bootstrap/Types.ts

@@ -6,7 +6,6 @@ const TYPES = {
   Sync_SQS: Symbol.for('Sync_SQS'),
   Sync_S3: Symbol.for('Sync_S3'),
   Sync_Env: Symbol.for('Sync_Env'),
-  Sync_NumberSelector: Symbol.for('Sync_NumberSelector'),
   // Repositories
   Sync_SQLItemRepository: Symbol.for('Sync_SQLItemRepository'),
   Sync_SharedVaultRepository: Symbol.for('Sync_SharedVaultRepository'),

packages/syncing-server/src/Domain/UseCase/Syncing/SaveItems/SaveItems.spec.ts

@@ -11,7 +11,6 @@ import { Item } from '../../../Item/Item'
 import { SendEventToClient } from '../SendEventToClient/SendEventToClient'
 import { DomainEventFactoryInterface } from '../../../Event/DomainEventFactoryInterface'
 import { ItemsChangedOnServerEvent } from '@standardnotes/domain-events'
-import { SelectorInterface } from '@standardnotes/security'
 
 describe('SaveItems', () => {
   let itemSaveValidator: ItemSaveValidatorInterface
@@ -24,7 +23,6 @@ describe('SaveItems', () => {
   let savedItem: Item
   let sendEventToClient: SendEventToClient
   let domainEventFactory: DomainEventFactoryInterface
-  let deterministicSelector: SelectorInterface<number>
 
   const createUseCase = () =>
     new SaveItems(
@@ -35,14 +33,10 @@ describe('SaveItems', () => {
       updateExistingItem,
       sendEventToClient,
       domainEventFactory,
-      deterministicSelector,
       logger,
     )
 
   beforeEach(() => {
-    deterministicSelector = {} as jest.Mocked<SelectorInterface<number>>
-    deterministicSelector.select = jest.fn().mockReturnValue(1)
-
     sendEventToClient = {} as jest.Mocked<SendEventToClient>
     sendEventToClient.execute = jest.fn().mockReturnValue(Result.ok())
 
@@ -228,8 +222,6 @@ describe('SaveItems', () => {
   })
 
   it('should update existing items', async () => {
-    deterministicSelector.select = jest.fn().mockReturnValue(9)
-
     const useCase = createUseCase()
 
     itemRepository.findByUuid = jest.fn().mockResolvedValue(savedItem)
@@ -250,7 +242,7 @@ describe('SaveItems', () => {
       sessionUuid: 'session-uuid',
       performingUserUuid: '00000000-0000-0000-0000-000000000000',
     })
-    expect(sendEventToClient.execute).not.toHaveBeenCalled()
+    expect(sendEventToClient.execute).toHaveBeenCalled()
   })
 
   it('should mark items as conflicts if updating existing item fails', async () => {

packages/syncing-server/src/Domain/UseCase/Syncing/SaveItems/SaveItems.ts

@@ -13,7 +13,6 @@ import { UpdateExistingItem } from '../UpdateExistingItem/UpdateExistingItem'
 import { ItemRepositoryInterface } from '../../../Item/ItemRepositoryInterface'
 import { SendEventToClient } from '../SendEventToClient/SendEventToClient'
 import { DomainEventFactoryInterface } from '../../../Event/DomainEventFactoryInterface'
-import { SelectorInterface } from '@standardnotes/security'
 
 export class SaveItems implements UseCaseInterface<SaveItemsResult> {
   private readonly SYNC_TOKEN_VERSION = 2
@@ -26,7 +25,6 @@ export class SaveItems implements UseCaseInterface<SaveItemsResult> {
     private updateExistingItem: UpdateExistingItem,
     private sendEventToClient: SendEventToClient,
     private domainEventFactory: DomainEventFactoryInterface,
-    private deterministicSelector: SelectorInterface<number>,
     private logger: Logger,
   ) {}
 
@@ -157,15 +155,6 @@ export class SaveItems implements UseCaseInterface<SaveItemsResult> {
       return
     }
 
-    const tenPercentSpreadArray = Array.from(Array(10).keys())
-    const diceRoll = this.deterministicSelector.select(dto.userUuid, tenPercentSpreadArray)
-    if (diceRoll > 6) {
-      this.logger.debug(`[${dto.userUuid}] Not sending items changed event to client.`)
-
-      return
-    }
-    this.logger.debug(`[${dto.userUuid}] Sending items changed event to client.`)
-
     const itemsChangedEvent = this.domainEventFactory.createItemsChangedOnServerEvent({
       userUuid: dto.userUuid,
       sessionUuid: dto.sessionUuid,