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Refactor delete user account use case to handle company deletion when the last user is removed #1322

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Merged
Artuomka merged 1 commit into from
Aug 28, 2025
Merged

Refactor delete user account use case to handle company deletion when the last user is removed #1322

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36 changes: 33 additions & 3 deletions backend/src/entities/user/use-cases/delete-user-account-use-case.ts
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Original file line number Diff line number Diff line change
@@ -1,19 +1,22 @@
import { HttpException, HttpStatus, Inject, Injectable } from '@nestjs/common';
import { HttpException, HttpStatus, Inject, Injectable, InternalServerErrorException, Scope } from '@nestjs/common';
import AbstractUseCase from '../../../common/abstract-use.case.js';
import { IGlobalDatabaseContext } from '../../../common/application/global-database-context.interface.js';
import { BaseType } from '../../../common/data-injection.tokens.js';
import { Messages } from '../../../exceptions/text/messages.js';
import { RegisteredUserDs } from '../application/data-structures/registered-user.ds.js';
import { IDeleteUserAccount } from './user-use-cases.interfaces.js';
import { SaasCompanyGatewayService } from '../../../microservices/gateways/saas-gateway.ts/saas-company-gateway.service.js';
import { isSaaS } from '../../../helpers/app/is-saas.js';

@Injectable()
@Injectable({ scope: Scope.REQUEST })
export class DeleteUserAccountUseCase
extends AbstractUseCase<string, Omit<RegisteredUserDs, 'token'>>
implements IDeleteUserAccount
{
constructor(
@Inject(BaseType.GLOBAL_DB_CONTEXT)
protected _dbContext: IGlobalDatabaseContext,
private readonly saasCompanyGatewayService: SaasCompanyGatewayService,
) {
super();
}
Expand All @@ -28,7 +31,34 @@ export class DeleteUserAccountUseCase
HttpStatus.BAD_REQUEST,
);
}
await this._dbContext.userRepository.deleteUserEntity(foundUser);

const userCompanyId = foundUser.company.id;

const usersCountInCompany = await this._dbContext.userRepository.countUsersInCompany(userCompanyId);

if (usersCountInCompany <= 1) {
const foundFullCompany = await this._dbContext.companyInfoRepository.findFullCompanyInfoByUserId(userId);
const { users, connections, invitations, id } = foundFullCompany;
if (isSaaS()) {
const deleteResult = await this.saasCompanyGatewayService.deleteCompany(id);
if (!deleteResult) {
throw new InternalServerErrorException(Messages.SAAS_DELETE_COMPANY_FAILED_UNHANDLED_ERROR);
}
}
if (users.length) {
await this._dbContext.userRepository.remove(users);
}
if (connections.length) {
await this._dbContext.connectionRepository.remove(connections);
}
if (invitations.length) {
await this._dbContext.invitationInCompanyRepository.remove(invitations);
}
await this._dbContext.companyInfoRepository.remove(foundFullCompany);
} else {
await this._dbContext.userRepository.deleteUserEntity(foundUser);
}

return {
id: foundUser.id,
email: foundUser.email,
Expand Down