import { IQueryHandler, QueryHandler } from '@nestjs/cqrs';
import { ProjectReadModel } from '@task-stream/api/tracker/domain';
import { FindProjectsRepository } from '../ports/find-projects.repository';
import { ReadAccess, UUID } from './read-access';
import { GetProjectQuery } from './get-project.query';

@QueryHandler(GetProjectQuery)
export class GetProjectQueryHandler
  implements IQueryHandler<GetProjectQuery, ProjectReadModel>
{
  constructor(
    private readonly findProjects: FindProjectsRepository,
    private readonly access: ReadAccess,
  ) {}

  async execute(query: GetProjectQuery): Promise<ProjectReadModel> {
    const project = UUID.test(query.idOrKey)
      ? await this.findProjects.findById(query.idOrKey)
      : await this.findProjects.findByKey(query.idOrKey.toUpperCase());
    const found = this.access.assertFound(project, 'Project', query.idOrKey);
    await this.access.assertCanView(found.id, query.viewerId, {
      entity: 'Project',
      ref: query.idOrKey,
    });
    return found;
  }
}