<?php

namespace App\Application\UseCase;

use App\Application\ReadModel\Game;
use App\Application\ReadModel\Team;
use Doctrine\Common\Collections\Criteria;
use Doctrine\ORM\EntityManagerInterface;
use Spatie\IcalendarGenerator\Components\Calendar;
use Spatie\IcalendarGenerator\Components\Event;

class GenerateGamesCalendar
{
    public function __construct(
        private readonly EntityManagerInterface $entityManager,
    ) {
    }

    public function __invoke(GenerateGamesCalendarRequest $request): string
    {
        $calendar = Calendar::create()
            ->name('Game')
            ->description('List game schedule');

        if (empty($request->teams)) {
            return $calendar->get();
        }

        $teams = [];
        foreach ($request->teams as $team) {
            $teams[$team] = $this->entityManager->getRepository(Team::class)->find($team);
        }

        //        $criteria = Criteria::create()
        //            ->where(Criteria::expr()->in('homeTeamId', $request->teams))
        //            ->orWhere(Criteria::expr()->in('awayTeamId', $request->teams))
        //            ->orderBy(['startTimeScheduled' => 'ASC']);
        //
        //        /** @var Game[] $games */
        //        $games = $this->entityManager->getRepository(Game::class)->matching($criteria);

        /** @var Game[] $homeGames */
        $homeGames = $this->entityManager->getRepository(Game::class)->findBy(['homeTeamId' => $request->teams]);
        /** @var Game[] $awayGames */
        $awayGames = $this->entityManager->getRepository(Game::class)->findBy(['awayTeamId' => $request->teams]);

        $gamesById = [];
        foreach (array_merge($homeGames, $awayGames) as $game) {
            $gamesById[$game->id] = $game;
        }
        /** @var Game[] $games */
        $games = array_values($gamesById);

        $events = [];
        foreach ($games as $game) {
            $home = $this->entityManager->getRepository(Team::class)->find($game->homeTeamId) ?? throw new \Exception('Team not found');
            $away = $this->entityManager->getRepository(Team::class)->find($game->awayTeamId) ?? throw new \Exception('Team not found');

            $events[] = Event::create($away->name . ' vs ' . $home->name)
                ->startsAt($game->startTimeScheduled)
                ->endsAt($game->endTimeScheduled ?? $game->startTimeScheduled->modify('+3 hours')) // should be a parameter of the league
                ->address($game->venue);
        }

        return $calendar
            ->event($events)
            ->get()
        ;
    }
}