package joker

import (
	"testing"
)

var deckTestCase = []int{1, 2, 13}

func TestDeck(t *testing.T) {
	d := NewDeck(StandardCards, 0)

	if len(d.Cards) != 52 {
		t.Errorf("expected 52 cards, got %d", len(d.Cards))
	}

	for _, suit := range StandardSuits {
		for _, face := range StandardFaces {
			found := 0
			for _, c := range d.Cards {
				if c.Equal(Card{face, suit}) {
					found++
				}
			}
			if found != 1 {
				t.Errorf("expected 1 %s, got %d", Card{face, suit}, found)
			}
		}
	}

	for _, draw := range deckTestCase {
		d = NewDeck(StandardCards, 0)
		var discard Cards

		l := len(d.Cards) / draw
		for i := 0; i < l; i++ {
			c, ok := d.Draw(draw)
			if !ok {
				t.Errorf("failed to draw %d iteration %d", draw, i)
			} else if len(c) != draw {
				t.Errorf("failed to draw %d iteration %d: expected %d cards, got %d", draw, i, draw, len(c))
			}

			discard = append(discard, c...)
		}

		if len(d.Cards) != 0 {
			t.Errorf("failed to draw %d: expected 0 cards after drawing, got %d", draw, len(d.Cards))
		}

		for _, suit := range StandardSuits {
			for _, face := range StandardFaces {
				found := 0
				for _, c := range discard {
					if c.Equal(Card{face, suit}) {
						found++
					}
				}
				if found != 1 {
					t.Errorf("failed to draw %d: discard: expected 1 %s, got %d", draw, Card{face, suit}, found)
				}
			}
		}
	}
}