<?php

namespace Tests\Unit;

use App\Services\WorldCup\Repositories\WorldCupMatchRepositoryInterface;
use App\Services\WorldCup\WorldCupMatchFavoriteService;
use Carbon\Carbon;
use Tests\TestCase;

class WorldCupMatchFavoriteServiceTest extends TestCase
{
    public function test_toggle_favorite_adds_and_removes_match()
    {
        $repository = new InMemoryWorldCupMatchRepository();
        $service = new WorldCupMatchFavoriteService($repository);

        $now = Carbon::parse('2026-06-05 12:00:00');
        $added = $service->toggleFavorite(1001, 10, $now);
        $removed = $service->toggleFavorite(1001, 10, $now);

        $this->assertTrue($added['success']);
        $this->assertTrue($added['is_favorite']);
        $this->assertTrue($removed['success']);
        $this->assertFalse($removed['is_favorite']);
    }

    public function test_match_list_marks_only_current_user_favorites()
    {
        $repository = new InMemoryWorldCupMatchRepository();
        $repository->addFavorite(1001, 10);
        $repository->addFavorite(2002, 11);
        $service = new WorldCupMatchFavoriteService($repository);

        $matches = $service->listMatches(1001, false, Carbon::parse('2026-06-05 12:00:00'));

        $this->assertTrue($matches[0]['is_favorite']);
        $this->assertFalse($matches[1]['is_favorite']);
    }

    public function test_match_list_keeps_schedule_metadata_for_frontend()
    {
        $repository = new InMemoryWorldCupMatchRepository();
        $service = new WorldCupMatchFavoriteService($repository);

        $matches = $service->listMatches(1001, false, Carbon::parse('2026-06-05 12:00:00'));

        $this->assertSame(1, $matches[0]['match_no']);
        $this->assertSame('group', $matches[0]['stage']);
        $this->assertSame('A', $matches[0]['group_name']);
        $this->assertSame('Mexico City Stadium', $matches[0]['venue']);
    }

    public function test_match_list_returns_closed_future_schedule_as_not_bettable()
    {
        $repository = new InMemoryWorldCupMatchRepository();
        $service = new WorldCupMatchFavoriteService($repository);

        $matches = $service->listMatches(1001, false, Carbon::parse('2026-06-05 12:00:00'));

        $this->assertSame(73, $matches[2]['match_no']);
        $this->assertSame('Winner 73 A', $matches[2]['home_team']);
        $this->assertFalse($matches[2]['is_bettable']);
    }

    public function test_favorite_filter_returns_only_favorites_and_keeps_cutoff_filter()
    {
        $repository = new InMemoryWorldCupMatchRepository();
        $repository->addFavorite(1001, 10);
        $repository->addFavorite(1001, 12);
        $service = new WorldCupMatchFavoriteService($repository);

        $matches = $service->listMatches(1001, true, Carbon::parse('2026-06-05 12:00:00'));

        $this->assertCount(1, $matches);
        $this->assertSame(10, $matches[0]['match_id']);
        $this->assertTrue($matches[0]['is_favorite']);
    }
}

class InMemoryWorldCupMatchRepository implements WorldCupMatchRepositoryInterface
{
    private $favorites = [];

    private $matches = [
        [
            'match_id' => 10,
            'match_no' => 1,
            'competition' => 'World Cup',
            'stage' => 'group',
            'group_name' => 'A',
            'home_team' => 'Mexico',
            'away_team' => 'South Africa',
            'venue' => 'Mexico City Stadium',
            'kickoff_at' => '2026-06-05 15:00:00',
            'status' => 'scheduled',
        ],
        [
            'match_id' => 11,
            'match_no' => 2,
            'competition' => 'World Cup',
            'stage' => 'group',
            'group_name' => 'A',
            'home_team' => 'France',
            'away_team' => 'Spain',
            'venue' => 'Estadio Guadalajara',
            'kickoff_at' => '2026-06-05 18:00:00',
            'status' => 'scheduled',
        ],
        [
            'match_id' => 12,
            'match_no' => 3,
            'competition' => 'World Cup',
            'stage' => 'group',
            'group_name' => 'B',
            'home_team' => 'Germany',
            'away_team' => 'Italy',
            'venue' => 'Toronto Stadium',
            'kickoff_at' => '2026-06-05 12:30:00',
            'status' => 'scheduled',
        ],
        [
            'match_id' => 73,
            'match_no' => 73,
            'competition' => 'World Cup',
            'stage' => 'round_32',
            'group_name' => null,
            'home_team' => 'Winner 73 A',
            'away_team' => 'Winner 73 B',
            'venue' => 'Los Angeles Stadium',
            'kickoff_at' => '2026-07-01 12:00:00',
            'status' => 'closed',
        ],
    ];

    public function getScheduleMatches(Carbon $now): array
    {
        $cutoff = $now->copy()->addHour();

        return array_values(array_filter($this->matches, function (array $match) use ($cutoff) {
            return in_array($match['status'], ['scheduled', 'closed'], true)
                && Carbon::parse($match['kickoff_at'])->gt($cutoff);
        }));
    }

    public function getOpenMatches(Carbon $now): array
    {
        $cutoff = $now->copy()->addHour();

        return array_values(array_filter($this->matches, function (array $match) use ($cutoff) {
            return $match['status'] === 'scheduled'
                && Carbon::parse($match['kickoff_at'])->gt($cutoff);
        }));
    }

    public function isOpenMatch(int $matchId, Carbon $now): bool
    {
        foreach ($this->getOpenMatches($now) as $match) {
            if ((int)$match['match_id'] === $matchId) {
                return true;
            }
        }

        return false;
    }

    public function getFavoriteMatchIds(int $userId): array
    {
        return array_values($this->favorites[$userId] ?? []);
    }

    public function isFavorite(int $userId, int $matchId): bool
    {
        return in_array($matchId, $this->favorites[$userId] ?? [], true);
    }

    public function addFavorite(int $userId, int $matchId): void
    {
        if (!isset($this->favorites[$userId])) {
            $this->favorites[$userId] = [];
        }

        if (!$this->isFavorite($userId, $matchId)) {
            $this->favorites[$userId][] = $matchId;
        }
    }

    public function removeFavorite(int $userId, int $matchId): void
    {
        $this->favorites[$userId] = array_values(array_filter(
            $this->favorites[$userId] ?? [],
            function ($favoriteMatchId) use ($matchId) {
                return (int)$favoriteMatchId !== $matchId;
            }
        ));
    }
}