fairnesscoop / pictyschool

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

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

import { GetSchoolByIdQuery } from './GetSchoolByIdQuery';

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

import { SchoolNotFoundException } from 'src/Domain/School/Exception/SchoolNotFoundException';

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

import { CanUserAccessToSchool } from 'src/Domain/User/Specification/CanUserAccessToSchool';

import { UserCantAccessToSchoolException } from 'src/Domain/User/Exception/UserCantAccessToSchoolException';

@QueryHandler(GetSchoolByIdQuery)

export class GetSchoolByIdQueryHandler {

  constructor(

    @Inject('ISchoolRepository')

    private readonly schoolRepository: ISchoolRepository,

    private readonly canUserAccessToSchool: CanUserAccessToSchool

  ) {}

  public async execute(query: GetSchoolByIdQuery): Promise<SchoolDetailView> {

    const { id, userId } = query;

    const school = await this.schoolRepository.findOneById(id);

    if (!school) {

      throw new SchoolNotFoundException();

    }

    if (false === await this.canUserAccessToSchool.isSatisfiedBy(school, userId)) {

      throw new UserCantAccessToSchoolException();

    }

    return new SchoolDetailView(

      school.getId(),

      school.getName(),

      school.getReference(),

      school.getAddress(),

      school.getCity(),

      school.getZipCode(),

      school.getStatus(),

      school.getType(),

      school.getEmail(),

      school.getPhoneNumber(),

      school.getNumberOfClasses(),

      school.getNumberOfStudents(),

      school.getObservation()

    );

  }

}