<?php

namespace App\Email\EmailConfirmationToken\UseCases;

use App\Auth\Clock;
use App\Auth\TokenGenerator;
use App\Email\EmailConfirmationToken\CreateEmailConfirmationTokenDto;
use App\Email\EmailConfirmationToken\EmailConfirmationToken;
use App\Email\EmailConfirmationToken\EmailConfirmationTokenRepository;
use App\Exceptions\BadRequestException;

class CreateEmailConfirmationToken
{
    public function __construct(
        private EmailConfirmationTokenRepository $tokenRepository,
        private Clock $clock,
        private TokenGenerator $tokenGenerator,
    ) {}

    /**
     * @throws BadRequestException
     */
    public function execute(
        CreateEmailConfirmationTokenRequest $request,
    ): EmailConfirmationToken {
        if ($request->user === null) {
            throw new BadRequestException('user is required');
        }
        if ($request->minuteOffset === null) {
            throw new BadRequestException('minuteOffset is required');
        }

        $existingToken = $this->tokenRepository->findByUser($request->user);
        if ($existingToken !== null) {
            $this->tokenRepository->delete($existingToken->getId());
        }

        return $this->tokenRepository->create(
            new CreateEmailConfirmationTokenDto(
                user: $request->user,
                availableTo: $this->clock->now()->modify(
                    "+{$request->minuteOffset} minutes",
                ),
                token: $this->tokenGenerator->generate(),
            ),
        );
    }
}