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import { EventBus } from '@nestjs/cqrs';
import { InjectRepository } from '@nestjs/typeorm';
import { keyBy, merge, uniqBy } from 'lodash-es';
import { SetRequired } from 'type-fest';
import { Repository } from 'typeorm';
import { KEYV_NAMESPACE, KeyvRepository, User, type Company } from '@amalia/core/models';
import { assert } from '@amalia/ext/typescript';
import { AuthenticatedContextFactory } from '@amalia/kernel/auth/core';
import { RecordType } from '@amalia/tenants/monitoring/audit/types';
import { AvatarsService } from '@amalia/tenants/users/profile/core';
import { SyncUserRequest, UserExternalIdSource, UserHrisIdSource } from '@amalia/tenants/users/types';
import { AppUsersRepository } from '../appUsers.repository';
import { UsersCreatedEvent } from '../events/UsersCreatedEvent';
@Injectable()
export class RegisterUsersUseCase {
public constructor(
@InjectRepository(User)
private readonly userRepository: Repository<User>,
private readonly appUsersRepository: AppUsersRepository,
private readonly avatarsService: AvatarsService,
private readonly eventBus: EventBus,
private readonly authenticatedContextFactory: AuthenticatedContextFactory,
private readonly keyvRepository: KeyvRepository,
) {}
public async execute({
company,
users,
currentUser,
}: {
company: Company;
users: SyncUserRequest[];
currentUser: User;
}) {
if (users.length === 0) {
return;
}
// WARNING: if you change the way users are retrieved, be sure to check that you also
// retrieve the settings of the users, else the settings will be lost and replaced by the default ones.
assert(
users.every((u): u is SetRequired<SyncUserRequest, 'email'> => !!u.email),
'All users must have an email',
);
const existingUsers = await this.appUsersRepository.findUsersByEmail(users.map((u) => u.email.toLowerCase()));
const existingUsersEmails = keyBy(existingUsers, 'email') as Record<string, User | undefined>;
const usersToSave = users.map((u) => {
const existingUser = existingUsersEmails[u.email.toLowerCase()];
assert(
!existingUser || existingUser.companyId === company.id,
new UnprocessableEntityException(`User with email ${existingUser?.email} already exists.`),
);
const userToSave: User = merge(existingUser || new User(), u);
userToSave.company = company;
userToSave.email = u.email.toLowerCase();
userToSave.pictureURL ??= this.avatarsService.randomDefaultAvatarUrl();
// If externalId is set without externalIdSource, it means that the user comes from another source than SALESFORCE or connector source.
// So it's OTHER.
if (userToSave.externalId) {
userToSave.externalIdSource = u.externalIdSource ?? UserExternalIdSource.OTHERSOURCE;
}
// Same rule as above but for hrisId
if (userToSave.hrisId) {
userToSave.hrisIdSource = u.hrisIdSource ?? UserHrisIdSource.OTHERSOURCE;
}
return userToSave;
});
// We check that there is no users to save with the same email
const uniqUsersPerEmail = uniqBy(usersToSave, 'email');
if (uniqUsersPerEmail.length !== usersToSave.length) {
throw new BadRequestException('Duplicate emails found in the list');
}
const savedUsers = await this.userRepository.save(usersToSave);
await this.keyvRepository.clearByCompany(KEYV_NAMESPACE.USERS_WHO_CAN_SEE_STATEMENT, company.id);
const newUsers = savedUsers.filter((u) => !existingUsersEmails[u.email]);
if (newUsers.length > 0) {
await this.eventBus.publish(new UsersCreatedEvent(company, currentUser, newUsers));
const authenticatedContext = await this.authenticatedContextFactory.makeAuthenticatedContext(currentUser);
// Audit each created user.
await Promise.all(
newUsers.map(async (u) => {
await this.appUsersRepository.auditRecordForUser(authenticatedContext, RecordType.CREATE, u);
}),
);
}
}
}
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