first commit

libs/api/tracker/application/src/lib/queries/get-project.query-handler.ts

@@ -0,0 +1,24 @@
+import { IQueryHandler, QueryHandler } from '@nestjs/cqrs';
+import { ProjectReadModel } from '@task-stream/api/tracker/domain';
+import { FindProjectsRepository } from '../ports/find-projects.repository';
+import { ReadAccess, UUID } from './read-access';
+import { GetProjectQuery } from './get-project.query';
+
+@QueryHandler(GetProjectQuery)
+export class GetProjectQueryHandler
+  implements IQueryHandler<GetProjectQuery, ProjectReadModel>
+{
+  constructor(
+    private readonly findProjects: FindProjectsRepository,
+    private readonly access: ReadAccess,
+  ) {}
+
+  async execute(query: GetProjectQuery): Promise<ProjectReadModel> {
+    const project = UUID.test(query.idOrKey)
+      ? await this.findProjects.findById(query.idOrKey)
+      : await this.findProjects.findByKey(query.idOrKey.toUpperCase());
+    const found = this.access.assertFound(project, 'Project', query.idOrKey);
+    await this.access.assertCanView(found.id, query.viewerId);
+    return found;
+  }
+}