Cysha/casino-holdem

<?php

namespace Cysha\Casino\Holdem\Cards\Results;

use Cysha\Casino\Cards\Card;
use Cysha\Casino\Cards\CardCollection;
use Cysha\Casino\Cards\Hand;
use Cysha\Casino\Cards\Results\StandardCardResult;

class SevenCardResult extends StandardCardResult
{
    const ROYAL_FLUSH = 9;
    const STRAIGHT_FLUSH = 8;
    const FOUR_OF_A_KIND = 7;
    const FULL_HOUSE = 6;
    const FLUSH = 5;
    const STRAIGHT = 4;
    const THREE_OF_A_KIND = 3;
    const TWO_PAIR = 2;
    const ONE_PAIR = 1;
    const HIGH_CARD = 0;

    /**
     * @param CardCollection $cards
     *
     * @return SevenCardResult
     */
    public static function createRoyalFlush(CardCollection $cards, Hand $hand): self
    {
        return new static(
            self::ROYAL_FLUSH,
            [0],
            $cards,
            'Royal Flush',
            $hand
        );
    }

    /**
     * @param CardCollection $cards
     *
     * @return SevenCardResult
     */
    public static function createStraightFlush(CardCollection $cards, Hand $hand): self
    {
        $highCard = $cards->sortByValue()->take(-1);
        $definition = sprintf('Straight Flush to %s', $highCard->first()->name());

        return new static(
            self::STRAIGHT_FLUSH,
            [$highCard->first()->value()],
            $cards,
            $definition,
            $hand
        );
    }

    /**
     * @param CardCollection $cards
     *
     * @return SevenCardResult
     */
    public static function createFourOfAKind(CardCollection $cards, Hand $hand): self
    {
        $cardGroups = $cards->groupByValue();

        $firstGroup = $cardGroups->first()->first();
        $kickerGroup = $cardGroups->last()->first();

        $definition = sprintf('4 of a Kind - %ss', $firstGroup->name());

        return new static(
            self::FOUR_OF_A_KIND,
            [$firstGroup->value(), $kickerGroup->value()],
            $cards,
            $definition,
            $hand
        );
    }

    /**
     * @param CardCollection $cards
     *
     * @return SevenCardResult
     */
    public static function createFullHouse(CardCollection $cards, Hand $hand): self
    {
        $cardGroups = $cards->groupByValue()->take(2);

        $firstCardGroup = $cardGroups->first()->first();
        $lastCardGroup = $cardGroups->last()->first();
        $definition = sprintf(
            'Full House - %ss over %ss',
            $firstCardGroup->name(),
            $lastCardGroup->name()
        );

        return new static(
            self::FULL_HOUSE,
            [$firstCardGroup->value(), $lastCardGroup->value()],
            $cards,
            $definition,
            $hand
        );
    }

    /**
     * @param CardCollection $cards
     *
     * @return SevenCardResult
     */
    public static function createFlush(CardCollection $cards, Hand $hand): self
    {
        $highCard = $cards->sortByValue()->take(-1);
        $definition = sprintf('Flush to %s', $highCard->first()->name());

        return new static(
            self::FLUSH,
            [$highCard->first()->value()],
            $cards,
            $definition,
            $hand
        );
    }

    /**
     * @param CardCollection $cards
     *
     * @return SevenCardResult
     */
    public static function createStraight(CardCollection $cards, Hand $hand): self
    {
        $highCard = $cards->sortByValue()->take(-1);
        $definition = sprintf('Straight to %s', $highCard->first()->name());

        return new static(
            self::STRAIGHT,
            [$highCard->first()->value()],
            $cards,
            $definition,
            $hand
        );
    }

    /**
     * @param CardCollection $cards
     *
     * @return SevenCardResult
     */
    public static function createThreeOfAKind(CardCollection $cards, Hand $hand): self
    {
        $cardGroups = $cards->groupByValue();

        $firstCard = $cardGroups->get(0)->first();
        $kicker = $cardGroups->get(1)->first();
        $definition = sprintf('3 of a Kind - %ss', $firstCard->name());

        return new static(
            self::THREE_OF_A_KIND,
            [$firstCard->value(), $kicker->value()],
            $cards,
            $definition,
            $hand
        );
    }

    /**
     * @param CardCollection $cards
     *
     * @return SevenCardResult
     */
    public static function createTwoPair(CardCollection $cards, Hand $hand): self
    {
        $cardGroups = $cards->groupByValue();
        $firstCard = $cardGroups->get(0)->first();
        $secondCard = $cardGroups->get(1)->first();
        $kickerCard = $cardGroups->get(2)->first();

        $definition = sprintf(
            'Two Pair - %ss and %ss',
            $firstCard->name(),
            $secondCard->name()
        );

        return new static(
            self::TWO_PAIR,
            [$firstCard->value(), $secondCard->value(), $kickerCard->value()],
            $cards,
            $definition,
            $hand
        );
    }

    /**
     * @param CardCollection $cards
     *
     * @return SevenCardResult
     */
    public static function createOnePair(CardCollection $cards, Hand $hand): self
    {
        $cardGroups = $cards->groupByValue();

        $pair = $cardGroups->get(0)->first();
        $kicker = $cardGroups->get(1)->first();
        $definition = sprintf('Pair of %ss', $pair->name());

        return new static(
            self::ONE_PAIR,
            [$pair->value(), $kicker->value()],
            $cards,
            $definition,
            $hand
        );
    }

    /**
     * @param CardCollection $cards
     *
     * @return SevenCardResult
     */
    public static function createHighCard(CardCollection $cards, Hand $hand): self
    {
        $cardValues = $cards->sortByValue()->values();

        $highCard = $cardValues->get(4);

        $definition = sprintf('High Card - %s', $highCard->name());

        return new static(
            self::HIGH_CARD,
            $cardValues->map(function (Card $card) {
                return $card->value();
            })->toArray(),
            $cards,
            $definition,
            $hand
        );
    }
}