import { IQueryHandler, QueryHandler } from '@nestjs/cqrs';
import { IssueReadModel } from '@task-stream/api/tracker/domain';
import { FindIssuesRepository, Page } from '../ports/find-issues.repository';
import { FindProjectsRepository } from '../ports/find-projects.repository';
import { SearchMyIssuesQuery } from './search-my-issues.query';

@QueryHandler(SearchMyIssuesQuery)
export class SearchMyIssuesQueryHandler
  implements IQueryHandler<SearchMyIssuesQuery, Page<IssueReadModel>>
{
  constructor(
    private readonly findProjects: FindProjectsRepository,
    private readonly findIssues: FindIssuesRepository,
  ) {}

  /** Membership is the access rule: only projects the viewer belongs to. */
  async execute(query: SearchMyIssuesQuery): Promise<Page<IssueReadModel>> {
    const projects = await this.findProjects.findByMember(query.viewerId);
    return this.findIssues.searchAcross({
      projectIds: projects.map((project) => project.id),
      assigneeId: query.filter.assignedToMe ? query.viewerId : undefined,
      statuses: query.filter.statuses,
      categories: query.filter.categories,
      limit: Math.min(query.filter.limit, 200),
      offset: query.filter.offset,
    });
  }
}