init

src/modules/issue/application/use-cases/get-issue/get-issue.use-case.ts

@@ -0,0 +1,25 @@
+import { Inject, Injectable } from '@nestjs/common';
+import { ISSUE_REPOSITORY, type IIssueRepository } from '../../../domain/repositories/issue.repository.interface.js';
+import { IssueNotFoundException } from '../../../domain/exceptions/issue-not-found.exception.js';
+import { GetIssueQuery } from './get-issue.query.js';
+import { IssueWithUsersDto } from '../../dto/issue-with-users.dto.js';
+import { IssueUserExpanderService } from '../../services/issue-user-expander.service.js';
+
+@Injectable()
+export class GetIssueUseCase {
+  constructor(
+    @Inject(ISSUE_REPOSITORY)
+    private readonly issueRepository: IIssueRepository,
+    private readonly issueUserExpander: IssueUserExpanderService,
+  ) {}
+
+  async execute(query: GetIssueQuery): Promise<IssueWithUsersDto> {
+    const issue = await this.issueRepository.findById(query.id, query.userId);
+
+    if (!issue) {
+      throw new IssueNotFoundException(query.id);
+    }
+
+    return this.issueUserExpander.expand(issue);
+  }
+}