<?php

namespace Tests\Unit;

use App\Services\WorldCup\Repositories\WorldCupOddsRepositoryInterface;
use App\Services\WorldCup\WorldCupOddsService;
use Tests\TestCase;

class WorldCupOddsServiceTest extends TestCase
{
    public function test_save_odds_updates_previous_odds_and_active_state()
    {
        $repository = new InMemoryWorldCupOddsRepository();
        $service = new WorldCupOddsService($repository);

        $result = $service->saveOdds([
            'market' => '1x2',
            'match_id' => 10,
            'selection' => 'home',
            'decimal_odds' => 2.35,
            'is_active' => 1,
            'locked_weight' => 9,
        ]);

        $this->assertTrue($result['success']);
        $this->assertSame(2.15, $repository->odds[0]['previous_odds']);
        $this->assertSame(2.35, $repository->odds[0]['decimal_odds']);
        $this->assertSame(1, $repository->odds[0]['is_active']);
        $this->assertSame(9, $repository->odds[0]['locked_weight']);
    }

    public function test_save_winner_market_allows_null_match_id()
    {
        $repository = new InMemoryWorldCupOddsRepository();
        $service = new WorldCupOddsService($repository);

        $result = $service->saveOdds([
            'market' => 'winner',
            'match_id' => null,
            'selection' => 'Brazil',
            'decimal_odds' => 6.5,
            'is_active' => 1,
            'locked_weight' => 99,
        ]);

        $this->assertTrue($result['success']);
        $created = $repository->findOdds('winner', null, 'Brazil');
        $this->assertSame('winner', $created['market']);
        $this->assertNull($created['match_id']);
    }

    public function test_match_odds_only_returns_active_1x2_odds_grouped_by_match()
    {
        $repository = new InMemoryWorldCupOddsRepository();
        $service = new WorldCupOddsService($repository);

        $odds = $service->activeMatchOdds([10, 11]);

        $this->assertArrayHasKey(10, $odds);
        $this->assertCount(2, $odds[10]);
        $this->assertSame('home', $odds[10][0]['selection']);
        $this->assertArrayNotHasKey(11, $odds);
    }

    public function test_list_odds_includes_match_team_pair_for_admin_table()
    {
        $repository = new InMemoryWorldCupOddsRepository();
        $service = new WorldCupOddsService($repository);

        $odds = $service->listOdds();

        $this->assertSame('Brazil', $odds[0]['home_team']);
        $this->assertSame('Serbia', $odds[0]['away_team']);
        $this->assertSame('Brazil vs Serbia', $odds[0]['team_pair']);
        $this->assertSame('Brazil 胜', $odds[0]['selection_label']);
        $this->assertSame('平局', $odds[1]['selection_label']);
        $this->assertSame('-', $odds[3]['team_pair']);
        $this->assertSame('Brazil', $odds[3]['selection_label']);
    }

    public function test_validation_rejects_invalid_market_or_decimal_odds()
    {
        $service = new WorldCupOddsService(new InMemoryWorldCupOddsRepository());

        $invalidMarket = $service->saveOdds([
            'market' => 'spread',
            'match_id' => 10,
            'selection' => 'home',
            'decimal_odds' => 2.0,
        ]);
        $invalidOdds = $service->saveOdds([
            'market' => '1x2',
            'match_id' => 10,
            'selection' => 'home',
            'decimal_odds' => 1.0,
        ]);

        $this->assertFalse($invalidMarket['success']);
        $this->assertSame('Invalid market', $invalidMarket['message']);
        $this->assertFalse($invalidOdds['success']);
        $this->assertSame('Decimal odds must be greater than 1', $invalidOdds['message']);
    }

    public function test_imports_1x2_odds_from_csv_rows()
    {
        $repository = new InMemoryWorldCupOddsRepository();
        $service = new WorldCupOddsService($repository);

        $result = $service->importOddsRows('1x2', [
            [
                'match_id' => '10',
                'home_win' => '2.40',
                'draw' => '3.25',
                'away_win' => '3.10',
            ],
            [
                'match_id' => '',
                'home_win' => '2.00',
                'draw' => '3.00',
                'away_win' => '4.00',
            ],
        ]);

        $this->assertTrue($result['success']);
        $this->assertSame(3, $result['data']['updated']);
        $this->assertSame(0, $result['data']['skipped']);
        $this->assertCount(1, $result['data']['errors']);
        $this->assertSame(2.40, $repository->findOdds('1x2', 10, 'home')['decimal_odds']);
        $this->assertSame(3.25, $repository->findOdds('1x2', 10, 'draw')['decimal_odds']);
        $this->assertSame(3.10, $repository->findOdds('1x2', 10, 'away')['decimal_odds']);
        $this->assertSame(2.15, $repository->findOdds('1x2', 10, 'home')['previous_odds']);
    }

    public function test_imports_winner_odds_from_draftkings_decimal()
    {
        $repository = new InMemoryWorldCupOddsRepository();
        $service = new WorldCupOddsService($repository);

        $result = $service->importOddsRows('winner', [
            [
                'team_name' => 'Brazil',
                'draftkings_decimal' => '10.00',
            ],
            [
                'team_name' => 'Argentina',
                'draftkings_decimal' => '10.50',
            ],
            [
                'team_name' => 'France',
                'draftkings_decimal' => '',
            ],
        ]);

        $this->assertTrue($result['success']);
        $this->assertSame(2, $result['data']['updated']);
        $this->assertCount(1, $result['data']['errors']);
        $this->assertSame(10.00, $repository->findOdds('winner', null, 'Brazil')['decimal_odds']);
        $this->assertSame(10.50, $repository->findOdds('winner', null, 'Argentina')['decimal_odds']);
        $this->assertSame(6.5, $repository->findOdds('winner', null, 'Brazil')['previous_odds']);
    }
}

class InMemoryWorldCupOddsRepository implements WorldCupOddsRepositoryInterface
{
    public $odds = [
        [
            'odds_id' => 1,
            'market' => '1x2',
            'match_id' => 10,
            'selection' => 'home',
            'decimal_odds' => 2.15,
            'previous_odds' => 2.05,
            'is_active' => 1,
            'locked_weight' => 1,
            'home_team' => 'Brazil',
            'away_team' => 'Serbia',
        ],
        [
            'odds_id' => 2,
            'market' => '1x2',
            'match_id' => 10,
            'selection' => 'draw',
            'decimal_odds' => 3.2,
            'previous_odds' => null,
            'is_active' => 1,
            'locked_weight' => 0,
            'home_team' => 'Brazil',
            'away_team' => 'Serbia',
        ],
        [
            'odds_id' => 3,
            'market' => '1x2',
            'match_id' => 11,
            'selection' => 'home',
            'decimal_odds' => 1.8,
            'previous_odds' => null,
            'is_active' => 0,
            'locked_weight' => 0,
            'home_team' => 'Argentina',
            'away_team' => 'France',
        ],
        [
            'odds_id' => 4,
            'market' => 'winner',
            'match_id' => null,
            'selection' => 'Brazil',
            'decimal_odds' => 6.5,
            'previous_odds' => null,
            'is_active' => 1,
            'locked_weight' => 99,
            'home_team' => null,
            'away_team' => null,
        ],
    ];

    public function allOdds(array $filters = []): array
    {
        return $this->odds;
    }

    public function activeMatchOdds(array $matchIds): array
    {
        return array_values(array_filter($this->odds, function (array $odds) use ($matchIds) {
            return $odds['market'] === '1x2'
                && in_array((int)$odds['match_id'], $matchIds, true)
                && (int)$odds['is_active'] === 1;
        }));
    }

    public function activeWinnerOdds(): array
    {
        return array_values(array_filter($this->odds, function (array $odds) {
            return $odds['market'] === 'winner' && (int)$odds['is_active'] === 1;
        }));
    }

    public function findOdds(string $market, ?int $matchId, string $selection): ?array
    {
        foreach ($this->odds as $odds) {
            if ($odds['market'] === $market
                && $odds['match_id'] === $matchId
                && $odds['selection'] === $selection) {
                return $odds;
            }
        }

        return null;
    }

    public function upsertOdds(array $odds): array
    {
        foreach ($this->odds as $index => $current) {
            if ($current['market'] === $odds['market']
                && $current['match_id'] === $odds['match_id']
                && $current['selection'] === $odds['selection']) {
                $odds['odds_id'] = $current['odds_id'];
                $this->odds[$index] = array_merge($current, $odds);

                return $this->odds[$index];
            }
        }

        $odds['odds_id'] = count($this->odds) + 1;
        $this->odds[] = $odds;

        return $odds;
    }
}