first commit

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

@@ -0,0 +1,24 @@
+import { IQueryHandler, QueryHandler } from '@nestjs/cqrs';
+import { IssueReadModel } from '@task-stream/api/tracker/domain';
+import { FindIssuesRepository } from '../ports/find-issues.repository';
+import { ReadAccess, UUID } from './read-access';
+import { GetIssueQuery } from './get-issue.query';
+
+@QueryHandler(GetIssueQuery)
+export class GetIssueQueryHandler
+  implements IQueryHandler<GetIssueQuery, IssueReadModel>
+{
+  constructor(
+    private readonly findIssues: FindIssuesRepository,
+    private readonly access: ReadAccess,
+  ) {}
+
+  async execute(query: GetIssueQuery): Promise<IssueReadModel> {
+    const issue = UUID.test(query.idOrKey)
+      ? await this.findIssues.findById(query.idOrKey)
+      : await this.findIssues.findByKey(query.idOrKey.toUpperCase());
+    const found = this.access.assertFound(issue, 'Issue', query.idOrKey);
+    await this.access.assertCanView(found.projectId, query.viewerId);
+    return found;
+  }
+}