fairnesscoop / permacoop

import { QueryHandler } from '@nestjs/cqrs';

import { Inject } from '@nestjs/common';

import { GetEventByIdQuery } from './GetEventByIdQuery';

import { IEventRepository } from 'src/Domain/FairCalendar/Repository/IEventRepository';

import { EventView } from '../View/EventView';

import { EventNotFoundException } from 'src/Domain/FairCalendar/Exception/EventNotFoundException';

import { ProjectView } from 'src/Application/Project/View/ProjectView';

import { TaskView } from 'src/Application/Task/View/TaskView';

@QueryHandler(GetEventByIdQuery)

export class GetEventByIdQueryHandler {

  constructor(

    @Inject('IEventRepository')

    private readonly eventRepository: IEventRepository

  ) {}

  public async execute(query: GetEventByIdQuery): Promise<EventView> {

    const event = await this.eventRepository.findOneById(query.id);

    if (!event) {

      throw new EventNotFoundException();

    }

    const project = event.getProject();

    const task = event.getTask();

    return new EventView(

      event.getId(),

      event.getType(),

      event.getTime(),

      event.getDate(),

      event.getSummary(),

      project ? new ProjectView(project.getId(), project.getName()) : null,

      task ? new TaskView(task.getId(), task.getName()) : null

    );

  }

}