package game

type Item int8

const (
	ItemNone Item = iota
	ItemLens
	ItemCig
	ItemBeer
	ItemCuff
	ItemKnife
)

func NewItem(rng *RNG) Item {
	return Item(rng.Intn(5)) + 1
}

func (i Item) Apply(g *Match) bool {
	switch i {
	case ItemNone:
		return false
	case ItemLens:
		if g.reveal {
			return false
		}
		g.reveal = true
		return true
	case ItemCig:
		cur := g.CurrentPlayer()
		if cur.hp < g.hp {
			cur.hp++
			// Cigs are always used, even if they have no effect.
		}
		return true
	case ItemBeer:
		g.popShell()
		if g.Empty() {
			g.NextGame()
		}
		return true
	case ItemCuff:
		opp := g.Opponent()
		if opp.cuffs != Uncuffed {
			return false
		}
		opp.cuffs = Cuffed
		return true
	case ItemKnife:
		if g.damage != 1 {
			return false
		}
		g.damage = 2
		return true
	default:
		panic("shotgun: unknown item")
	}
}

func (i Item) String() string {
	s := [...]string{"", "🔍", "🚬", "🍺", "👮", "🔪"}
	return s[i]
}