fairnesscoop / pictyschool

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

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

import { CreateEventCommand } from './CreateEventCommand';

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

import { ISchoolRepository } from 'src/Domain/School/Repository/ISchoolRepository';

import { Event } from 'src/Domain/Calendar/Event.entity';

import { IUserRepository } from 'src/Domain/User/Repository/IUserRepository';

import { AbstractEventCommandHandler } from './AbstractEventCommandHandler';

@CommandHandler(CreateEventCommand)

export class CreateEventCommandHandler extends AbstractEventCommandHandler {

  constructor(

    @Inject('ISchoolRepository') schoolRepository: ISchoolRepository,

    @Inject('IUserRepository') userRepository: IUserRepository,

    @Inject('IEventRepository')

    private readonly eventRepository: IEventRepository,

  ) {

    super(schoolRepository, userRepository);

  }

  public async execute(command: CreateEventCommand): Promise<string> {

    const { date, summary, userId, schoolId } = command;

    const [ user, school ] = await Promise.all([

      this.getUser(userId),

      this.getSchool(schoolId)

    ]);

    const event = await this.eventRepository.save(

      new Event(

        date,

        user,

        school,

        summary

      )

    );

    return event.getId();

  }

}