package item

import (
	"github.com/df-mc/dragonfly/server/world"
	"github.com/df-mc/dragonfly/server/world/sound"
	"time"
)

// GoatHorn is an item dropped by goats. It has eight variants, and each plays a unique sound when used which can be
// heard by players in a large radius.
type GoatHorn struct {
	nopReleasable

	// Type is the type of the goat horn, determining the sound it plays.
	Type sound.Horn
}

// MaxCount ...
func (GoatHorn) MaxCount() int {
	return 1
}

// Cooldown ...
func (GoatHorn) Cooldown() time.Duration {
	return time.Second * 7
}

// Use ...
func (g GoatHorn) Use(tx *world.Tx, user User, _ *UseContext) bool {
	tx.PlaySound(user.Position(), sound.GoatHorn{Horn: g.Type})
	time.AfterFunc(time.Second, func() {
		user.H().ExecWorld(g.releaseItem)
	})
	return true
}

// releaseItem releases the goat horn item if a user is still using it.
func (g GoatHorn) releaseItem(_ *world.Tx, e world.Entity) {
	user := e.(User)
	if !user.UsingItem() {
		// We aren't using the goat horn anymore.
		return
	}
	held, _ := user.HeldItems()
	if _, ok := held.Item().(GoatHorn); !ok {
		// We aren't holding the goat horn anymore.
		return
	}
	// The goat horn is forcefully released by the server after a second. If the
	// client released the item itself, before a second, this shouldn't do
	// anything.
	user.ReleaseItem()
}

// EncodeItem ...
func (g GoatHorn) EncodeItem() (name string, meta int16) {
	return "minecraft:goat_horn", int16(g.Type.Uint8())
}