package fibs

import (
	"fmt"
	"testing"
)

func TestBoard_GetValidMoves(t *testing.T) {
	client := NewClient("", "", "")

	b := NewBoard(client)

	b.v[StatePlayerColor] = 1
	b.v[StateTurn] = 1
	b.v[StateDirection] = -1
	b.v[StateBoardSpace0+11] = 3
	b.v[StateBoardSpace0+9] = 7
	b.v[StateBoardSpace0+13] = -4
	b.v[StateBoardSpace0+24] = -3
	b.v[StatePlayerBar] = 1

	testCases := []struct {
		roll  [2]int
		from  int
		moves []int
	}{
		{
			roll:  [2]int{1, 5},
			from:  25,
			moves: []int{19, 20},
		},
		{
			roll:  [2]int{1, 5},
			from:  1,
			moves: []int{},
		},
	}
	for _, c := range testCases {
		c := c
		t.Run(fmt.Sprintf("With-%d-%d-From-%s", c.roll[0], c.roll[1], fmt.Sprintf("%02d", c.from)), func(t *testing.T) {
			b.v[StatePlayerDice1], b.v[StatePlayerDice2] = c.roll[0], c.roll[1]
			b.Draw()

			validMoves := b.GetValidMoves(c.from)
			for i := range validMoves {
				if !equalInts(validMoves[i], c.moves) {
					t.Errorf("unexpected valid moves: expected %+v, got %+v\n%s", c.moves, validMoves, b.Render())
				}
			}
		})
	}
}

func equalInts(a, b []int) bool {
	if len(a) != len(b) {
		return false
	}
	for i := range a {
		if a[i] != b[i] {
			return false
		}
	}
	return true
}