74 lines
2.4 KiB
TypeScript
74 lines
2.4 KiB
TypeScript
import { EmailAddress } from '../../domain/value-objects/EmailAddress';
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import { User } from '../../domain/entities/User';
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import { AuthRepository } from '../../domain/repositories/AuthRepository';
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import { PasswordHashingService } from '../../domain/services/PasswordHashingService';
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import { Result } from '@core/shared/domain/Result';
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import type { ApplicationErrorCode } from '@core/shared/errors/ApplicationErrorCode';
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import type { Logger } from '@core/shared/domain/Logger';
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import type { UseCase } from '@core/shared/application/UseCase';
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export type LoginInput = {
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email: string;
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password: string;
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};
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export type LoginResult = {
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user: User;
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};
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export type LoginErrorCode = 'INVALID_CREDENTIALS' | 'REPOSITORY_ERROR';
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export type LoginApplicationError = ApplicationErrorCode<LoginErrorCode, { message: string }>;
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/**
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* Application Use Case: LoginUseCase
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*
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* Handles user login by verifying credentials.
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*/
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export class LoginUseCase implements UseCase<LoginInput, LoginResult, LoginErrorCode> {
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constructor(
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private readonly authRepo: AuthRepository,
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private readonly passwordService: PasswordHashingService,
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private readonly logger: Logger,
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) {}
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async execute(input: LoginInput): Promise<Result<LoginResult, LoginApplicationError>> {
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try {
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const emailVO = EmailAddress.create(input.email);
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const user = await this.authRepo.findByEmail(emailVO);
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if (!user || !user.getPasswordHash()) {
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return Result.err({
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code: 'INVALID_CREDENTIALS',
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details: { message: 'Invalid credentials' },
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});
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}
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const passwordHash = user.getPasswordHash()!;
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const isValid = await this.passwordService.verify(input.password, passwordHash.value);
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if (!isValid) {
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return Result.err<LoginResult, LoginApplicationError>({
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code: 'INVALID_CREDENTIALS',
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details: { message: 'Invalid credentials' },
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});
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}
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return Result.ok({ user });
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} catch (error) {
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const message =
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error instanceof Error && error.message
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? error.message
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: 'Failed to execute LoginUseCase';
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this.logger.error('LoginUseCase.execute failed', error instanceof Error ? error : undefined, {
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input,
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});
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return Result.err<LoginResult, LoginApplicationError>({
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code: 'REPOSITORY_ERROR',
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details: { message },
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});
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}
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}
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} |