init

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

@@ -0,0 +1,50 @@
+import { Inject, Injectable } from '@nestjs/common';
+import { Issue } from '../../../domain/entities/issue.entity.js';
+import { ISSUE_REPOSITORY, type IIssueRepository } from '../../../domain/repositories/issue.repository.interface.js';
+import {
+  PROJECT_REPOSITORY,
+  type IProjectRepository,
+} from '../../../../project/domain/repositories/project.repository.interface.js';
+import { CreateIssueCommand } from './create-issue.command.js';
+import { IssueWithUsersDto } from '../../dto/issue-with-users.dto.js';
+import { IssueEventsService } from '../../services/issue-events.service.js';
+import { IssueUserExpanderService } from '../../services/issue-user-expander.service.js';
+import { IssueCreatedEvent } from '../../../domain/events/issue-created.event.js';
+
+@Injectable()
+export class CreateIssueUseCase {
+  constructor(
+    @Inject(ISSUE_REPOSITORY)
+    private readonly issueRepository: IIssueRepository,
+    @Inject(PROJECT_REPOSITORY)
+    private readonly projectRepository: IProjectRepository,
+    private readonly issueEventsService: IssueEventsService,
+    private readonly issueUserExpander: IssueUserExpanderService,
+  ) {}
+
+  async execute(command: CreateIssueCommand): Promise<IssueWithUsersDto> {
+    const draft = Issue.create({
+      key: command.key,
+      title: command.title,
+      content: command.content,
+      priority: command.priority,
+      assignee: command.assignee,
+      reporter: command.reporter,
+      projectId: command.projectId,
+    });
+
+    const issue = await this.issueRepository.create(draft);
+    const dto = await this.issueUserExpander.expand(issue);
+
+    if (issue.assignee) {
+      await this.projectRepository.addMember(issue.projectId, issue.assignee);
+    }
+
+    const domainEvents = draft.pullDomainEvents();
+    if (domainEvents.some((event) => event instanceof IssueCreatedEvent)) {
+      this.issueEventsService.emitIssueCreated(dto);
+    }
+
+    return dto;
+  }
+}