first commit

libs/api/tracker/application/src/lib/queries/get-issues-by-ids.query-handler.ts

@@ -0,0 +1,23 @@
+import { IQueryHandler, QueryHandler } from '@nestjs/cqrs';
+import { IssueReadModel } from '@task-stream/api/tracker/domain';
+import { FindIssuesRepository } from '../ports/find-issues.repository';
+import { FindProjectsRepository } from '../ports/find-projects.repository';
+import { GetIssuesByIdsQuery } from './get-issues-by-ids.query';
+
+@QueryHandler(GetIssuesByIdsQuery)
+export class GetIssuesByIdsQueryHandler
+  implements IQueryHandler<GetIssuesByIdsQuery, IssueReadModel[]>
+{
+  constructor(
+    private readonly findIssues: FindIssuesRepository,
+    private readonly findProjects: FindProjectsRepository,
+  ) {}
+
+  async execute(query: GetIssuesByIdsQuery): Promise<IssueReadModel[]> {
+    const issues = await this.findIssues.findByIds([...new Set(query.ids)]);
+    const visible = new Set(
+      (await this.findProjects.findByMember(query.viewerId)).map((p) => p.id),
+    );
+    return issues.filter((issue) => visible.has(issue.projectId));
+  }
+}