import { guestOnly } from './read-access';
import { IQueryHandler, QueryHandler } from '@nestjs/cqrs';
import { ReleaseReadModel } from '@task-stream/api/tracker/domain';
import { FindProjectsRepository } from '../ports/find-projects.repository';
import { FindReleasesRepository } from '../ports/find-releases.repository';
import { GetUpcomingReleasesQuery } from './get-upcoming-releases.query';

@QueryHandler(GetUpcomingReleasesQuery)
export class GetUpcomingReleasesQueryHandler
  implements IQueryHandler<GetUpcomingReleasesQuery, ReleaseReadModel[]>
{
  constructor(
    private readonly findProjects: FindProjectsRepository,
    private readonly findReleases: FindReleasesRepository,
  ) {}

  async execute(query: GetUpcomingReleasesQuery): Promise<ReleaseReadModel[]> {
    const projects = await this.findProjects.findByMember(query.viewerId);
    // A guest does not see a private project's releases.
    return this.findReleases.findUpcoming(
      projects
        .filter((project) => !guestOnly(project, query.viewerId))
        .map((project) => project.id),
      Math.min(query.limit, 50),
    );
  }
}