<?php

namespace App\ScheduledNode\UseCases;

use App\Exceptions\BadRequestException;
use App\ScheduledNode\ScheduledNode;
use App\ScheduledNode\ScheduledNodeRepository;
use App\User\UserRepository;
use DateTimeImmutable;
use DomainException;

class GetTodaysSchedule
{
    public function __construct(
        private UserRepository $userRepo,
        private ScheduledNodeRepository $scheduledNodeRepo,
    ) {}

    /**
     * @return ScheduledNode[]
     *
     * @throws BadRequestException
     * @throws DomainException
     */
    public function execute(GetTodaysScheduleRequest $request): array
    {
        if ($request->date === null) {
            throw new BadRequestException('date is required');
        }
        if ($request->userId === null) {
            throw new BadRequestException('userId is required');
        }
        $date = new DateTimeImmutable($request->date);
        $userId = $request->userId;
        $user = $this->userRepo->find($userId);
        if ($user === null) {
            throw new DomainException(
                "User with id: $userId doesnt exist"
            );
        }
        $scheduledNodes = $this->scheduledNodeRepo->findByUser($user);

        return array_filter(
            $scheduledNodes,
            function (ScheduledNode $node) use ($date) {
                return $node->getDate() <= $date
                    && $node->getCompleted() === false;
            }
        );
    }
}