package entity

import (
	"sort"
)

type Hand struct {
	Public         []Card
	Private        []Card
	ReversePublic  []Card
	ReversePrivate []Card
}

func (hand *Hand) Push(card Card) {
	if hand.Public == nil {
		hand.Public = make([]Card, 0, 1)
	}
	hand.Public = append(hand.Public, card)
}

func (hand Hand) Len() int {
	return len(hand.Public) + len(hand.Private) + len(hand.ReversePublic) + len(hand.ReversePrivate)
}

func (hand Hand) AllCards() []Card {
	allcards := make([]Card, 0, hand.Len())
	for _, cards := range [][]Card{hand.Public, hand.Private, hand.ReversePublic, hand.ReversePrivate} {
		allcards = append(allcards, cards...)
	}
	return allcards
}

func (hand Hand) Flush() bool {
	suit := -1
	for _, card := range hand.AllCards() {
		if suit == -1 {
			suit = card.Suit
		} else if suit != card.Suit {
			return false
		}
	}
	return suit != -1
}

func (hand Hand) Straight() bool {
	cards := hand.AllCards()
	values := make([]int, 0, len(cards))
	for _, card := range cards {
		values = append(values, card.Value)
	}
	sort.Ints(values)
	for i := 1; i < len(values); i++ {
		if values[i-1]+1 != values[i] {
			return false
		}
	}
	return len(values) > 1
}