refactor: convert handleNotificationWhenNoSlots to service class with DI (#23055)

* refactor: convert handleNotificationWhenNoSlots to service class with DI

- Convert standalone handleNotificationWhenNoSlots function to NoSlotsNotificationService class
- Add INoSlotsNotificationService interface following existing patterns
- Create NoSlotsNotification DI module and add to container
- Add NO_SLOTS_NOTIFICATION_SERVICE tokens to DI_TOKENS
- Inject service into AvailableSlotsService dependencies
- Update AvailableSlotsService to use injected service instead of direct function call
- Update all test cases to use service class pattern
- Follows existing DI patterns used by other services like BusyTimesService and CheckBookingLimitsService

Co-Authored-By: morgan@cal.com <morgan@cal.com>

* refactor: move Prisma calls to repositories and create dedicated DI container

- Add findOrganizationSettingsBySlug and findTeamSlugById methods to TeamRepository
- Add findTeamAdminsByTeamId method to MembershipRepository
- Create MembershipRepository DI module and tokens
- Update NoSlotsNotificationService to inject TeamRepository, MembershipRepository, and Redis client
- Create dedicated DI container for NoSlotsNotificationService
- Update AvailableSlots DI container to include MembershipRepository
- Replace direct Prisma and Redis calls with repository methods and injected client
- Update tests to use DI container instead of direct service instantiation
- Fix Redis interface import path

Co-Authored-By: morgan@cal.com <morgan@cal.com>

* chore: DI noSlotsNotification service

* chore: bump library

---------

Co-authored-by: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>
Co-authored-by: morgan@cal.com <morgan@cal.com>
Co-authored-by: Morgan <33722304+ThyMinimalDev@users.noreply.github.com>

apps/api/v2/package.json

@@ -38,7 +38,7 @@
     "@axiomhq/winston": "^1.2.0",
     "@calcom/platform-constants": "*",
     "@calcom/platform-enums": "*",
-    "@calcom/platform-libraries": "npm:@calcom/platform-libraries@0.0.311",
+    "@calcom/platform-libraries": "npm:@calcom/platform-libraries@0.0.312",
     "@calcom/platform-types": "*",
     "@calcom/platform-utils": "*",
     "@calcom/prisma": "*",

apps/api/v2/src/lib/modules/available-slots.module.ts

@@ -1,6 +1,7 @@
 import { PrismaBookingRepository } from "@/lib/repositories/prisma-booking.repository";
 import { PrismaEventTypeRepository } from "@/lib/repositories/prisma-event-type.repository";
 import { PrismaFeaturesRepository } from "@/lib/repositories/prisma-features.repository";
+import { PrismaMembershipRepository } from "@/lib/repositories/prisma-membership.repository";
 import { PrismaOOORepository } from "@/lib/repositories/prisma-ooo.repository";
 import { PrismaRoutingFormResponseRepository } from "@/lib/repositories/prisma-routing-form-response.repository";
 import { PrismaScheduleRepository } from "@/lib/repositories/prisma-schedule.repository";
@@ -12,6 +13,7 @@ import { BusyTimesService } from "@/lib/services/busy-times.service";
 import { CacheService } from "@/lib/services/cache.service";
 import { CheckBookingLimitsService } from "@/lib/services/check-booking-limits.service";
 import { FilterHostsService } from "@/lib/services/filter-hosts.service";
+import { NoSlotsNotificationService } from "@/lib/services/no-slots-notification.service";
 import { QualifiedHostsService } from "@/lib/services/qualified-hosts.service";
 import { UserAvailabilityService } from "@/lib/services/user-availability.service";
 import { PrismaModule } from "@/modules/prisma/prisma.module";
@@ -31,6 +33,7 @@ import { Module } from "@nestjs/common";
     PrismaTeamRepository,
     RedisService,
     PrismaFeaturesRepository,
+    PrismaMembershipRepository,
     CheckBookingLimitsService,
     CacheService,
     AvailableSlotsService,
@@ -38,6 +41,7 @@ import { Module } from "@nestjs/common";
     BusyTimesService,
     FilterHostsService,
     QualifiedHostsService,
+    NoSlotsNotificationService,
   ],
   exports: [AvailableSlotsService],
 })

apps/api/v2/src/lib/repositories/prisma-membership.repository.ts

@@ -0,0 +1,12 @@
+import { PrismaWriteService } from "@/modules/prisma/prisma-write.service";
+import { Injectable } from "@nestjs/common";
+
+import { PrismaMembershipRepository as PrismaMembershipRepositoryLib } from "@calcom/platform-libraries/repositories";
+import { PrismaClient } from "@calcom/prisma";
+
+@Injectable()
+export class PrismaMembershipRepository extends PrismaMembershipRepositoryLib {
+  constructor(private readonly dbWrite: PrismaWriteService) {
+    super(dbWrite.prisma as unknown as PrismaClient);
+  }
+}

apps/api/v2/src/lib/services/available-slots.service.ts

@@ -10,6 +10,7 @@ import { PrismaUserRepository } from "@/lib/repositories/prisma-user.repository"
 import { BusyTimesService } from "@/lib/services/busy-times.service";
 import { CacheService } from "@/lib/services/cache.service";
 import { CheckBookingLimitsService } from "@/lib/services/check-booking-limits.service";
+import { NoSlotsNotificationService } from "@/lib/services/no-slots-notification.service";
 import { QualifiedHostsService } from "@/lib/services/qualified-hosts.service";
 import { RedisService } from "@/modules/redis/redis.service";
 import { Injectable } from "@nestjs/common";
@@ -35,7 +36,8 @@ export class AvailableSlotsService extends BaseAvailableSlotsService {
     checkBookingLimitsService: CheckBookingLimitsService,
     cacheService: CacheService,
     userAvailabilityService: UserAvailabilityService,
-    busyTimesService: BusyTimesService
+    busyTimesService: BusyTimesService,
+    noSlotsNotificationService: NoSlotsNotificationService
   ) {
     super({
       oooRepo: oooRepoDependency,
@@ -53,6 +55,7 @@ export class AvailableSlotsService extends BaseAvailableSlotsService {
       busyTimesService,
       qualifiedHostsService,
       featuresRepo: featuresRepository,
+      noSlotsNotificationService,
     });
   }
 }

apps/api/v2/src/lib/services/no-slots-notification.service.ts

@@ -0,0 +1,21 @@
+import { PrismaMembershipRepository } from "@/lib/repositories/prisma-membership.repository";
+import { PrismaTeamRepository } from "@/lib/repositories/prisma-team.repository";
+import { RedisService } from "@/modules/redis/redis.service";
+import { Injectable } from "@nestjs/common";
+
+import { NoSlotsNotificationService as BaseNoSlotsNotificationService } from "@calcom/platform-libraries/slots";
+
+@Injectable()
+export class NoSlotsNotificationService extends BaseNoSlotsNotificationService {
+  constructor(
+    teamRepository: PrismaTeamRepository,
+    membershipRepository: PrismaMembershipRepository,
+    redisService: RedisService
+  ) {
+    super({
+      teamRepo: teamRepository,
+      membershipRepo: membershipRepository,
+      redisClient: redisService,
+    });
+  }
+}