feature: version one notification feature implemented.

backend/src/modules/tasks/tasks.service.ts

@@ -4,7 +4,7 @@ import {
   Injectable,
   NotFoundException,
 } from '@nestjs/common';
-import { CatalogEntityKind, LabCaseActivityType, LabTaskStatus, Prisma } from '@prisma/client';
+import { CatalogEntityKind, LabCaseActivityType, LabTaskStatus, Prisma, UserNotificationType } from '@prisma/client';
 import { PrismaService } from '../../../prisma/prisma.service';
 import { normalizeMobile } from '../../common/phone';
 import {
@@ -16,6 +16,7 @@ import { isLabCaseOverdue, startOfUtcDay } from '../../common/lab-case-due-date'
 import { ListLabTasksDto, LocateTaskPageDto, UpdateLabTaskDto } from './dto/tasks.dto';
 import { hasEffectivePermission } from '../../common/membership-permissions';
 import { LabCaseActivityService } from '../notifications/lab-case-activity.service';
+import { UserNotificationService } from '../notifications/user-notification.service';
 
 const taskListInclude = {
   lastStatusChangedBy: { select: { id: true, name: true } },
@@ -42,6 +43,7 @@ export class TasksService {
     private readonly prisma: PrismaService,
     private readonly catalogLabels: CatalogLabelService,
     private readonly labCaseActivity: LabCaseActivityService,
+    private readonly userNotifications: UserNotificationService,
   ) {}
 
   getOrganizationIdFromUser(user: { organizationId?: string }) {
@@ -323,6 +325,30 @@ export class TasksService {
       return result;
     });
 
+    if (dto.status === LabTaskStatus.COMPLETED && task.status !== LabTaskStatus.COMPLETED) {
+      void this.userNotifications.notify({
+        organizationId: labOrganizationId,
+        type: UserNotificationType.TASK_COMPLETED,
+        href: `/tasks?taskId=${encodeURIComponent(taskId)}&labCaseId=${encodeURIComponent(task.labCaseId)}`,
+        actorUserId,
+        payload: { labCaseId: task.labCaseId, taskId },
+        requiredPermission: 'TAB_TASKS_READ',
+      });
+
+      const clinicOrgId = task.labCase?.treatment?.organization?.id;
+      if (clinicOrgId) {
+        void this.userNotifications.notify({
+          organizationId: clinicOrgId,
+          type: UserNotificationType.TASK_COMPLETED,
+          href: `/treatment?labCaseId=${encodeURIComponent(task.labCaseId)}`,
+          actorUserId,
+          payload: { labCaseId: task.labCaseId, taskId },
+          requiredPermission: 'TAB_TREATMENT_READ',
+          labCaseIdForProviderScope: task.labCaseId,
+        });
+      }
+    }
+
     const locale = normalizeCatalogLocale(localeInput);
     const prosthesisLabels = await this.catalogLabels.resolveLabels(
       CatalogEntityKind.PROSTHESIS_TYPE,