first commit

libs/api/tracker/application/src/lib/event-handlers/project-created.event-handler.ts

@@ -0,0 +1,36 @@
+import { EventsHandler, IEventHandler } from '@nestjs/cqrs';
+import { ProjectCreatedEvent } from '@task-stream/api/tracker/domain';
+import { UpsertMaterializedProjectRepository } from '../ports/upsert-materialized-project.repository';
+import { UserDirectory } from '../ports/user-directory';
+import { ReadModelNotifier, versionOf } from './read-model-notifier';
+
+@EventsHandler(ProjectCreatedEvent)
+export class ProjectCreatedEventHandler
+  implements IEventHandler<ProjectCreatedEvent>
+{
+  constructor(
+    private readonly upsertMaterializedProjectRepository: UpsertMaterializedProjectRepository,
+    private readonly users: UserDirectory,
+    private readonly notifier: ReadModelNotifier,
+  ) {}
+
+  async handle(event: ProjectCreatedEvent) {
+    const { project } = event;
+    const users = await this.users.refs(project.members.map((m) => m.userId));
+    await this.upsertMaterializedProjectRepository.upsert({
+      id: project.id,
+      key: project.key,
+      name: project.name,
+      description: project.description,
+      owner: users.of(project.ownerId),
+      members: project.members.map((m) => ({
+        user: users.of(m.userId),
+        role: m.role,
+      })),
+      createdAt: project.createdAt,
+      updatedAt: project.updatedAt,
+      version: versionOf(event),
+    });
+    await this.notifier.project(event, [project.ownerId]);
+  }
+}