Files
gridpilot.gg/core/identity/application/use-cases/SignupUseCase.ts
2025-12-21 19:53:22 +01:00

81 lines
2.6 KiB
TypeScript

import { EmailAddress } from '../../domain/value-objects/EmailAddress';
import { UserId } from '../../domain/value-objects/UserId';
import { User } from '../../domain/entities/User';
import { IAuthRepository } from '../../domain/repositories/IAuthRepository';
import { IPasswordHashingService } from '../../domain/services/PasswordHashingService';
import { Result } from '@core/shared/application/Result';
import type { ApplicationErrorCode } from '@core/shared/errors/ApplicationErrorCode';
import type { UseCaseOutputPort, Logger, UseCase } from '@core/shared/application';
export type SignupInput = {
email: string;
password: string;
displayName: string;
};
export type SignupResult = {
user: User;
};
export type SignupErrorCode = 'USER_ALREADY_EXISTS' | 'REPOSITORY_ERROR';
export type SignupApplicationError = ApplicationErrorCode<SignupErrorCode, { message: string }>;
/**
* Application Use Case: SignupUseCase
*
* Handles user registration.
*/
export class SignupUseCase implements UseCase<SignupInput, void, SignupErrorCode> {
constructor(
private readonly authRepo: IAuthRepository,
private readonly passwordService: IPasswordHashingService,
private readonly logger: Logger,
private readonly output: UseCaseOutputPort<SignupResult>,
) {}
async execute(input: SignupInput): Promise<Result<void, SignupApplicationError>> {
try {
const emailVO = EmailAddress.create(input.email);
const existingUser = await this.authRepo.findByEmail(emailVO);
if (existingUser) {
return Result.err({
code: 'USER_ALREADY_EXISTS',
details: { message: 'User already exists' },
});
}
const hashedPassword = await this.passwordService.hash(input.password);
const passwordHashModule = await import('../../domain/value-objects/PasswordHash');
const passwordHash = passwordHashModule.PasswordHash.fromHash(hashedPassword);
const userId = UserId.create();
const user = User.create({
id: userId,
displayName: input.displayName,
email: emailVO.value,
passwordHash,
});
await this.authRepo.save(user);
this.output.present({ user });
return Result.ok(undefined);
} catch (error) {
const message =
error instanceof Error && error.message
? error.message
: 'Failed to execute SignupUseCase';
this.logger.error('SignupUseCase.execute failed', error instanceof Error ? error : undefined, {
input,
});
return Result.err({
code: 'REPOSITORY_ERROR',
details: { message },
});
}
}
}