package buttons

import (
	"git.vezzani.net/ben/games/common/elements/v1"
	"git.vezzani.net/ben/games/common/elements/v1/blocks"
	"git.vezzani.net/ben/games/common/elements/v1/mouse"
)

func New(ops ...Option) elements.InitFunc {
	return func(bounds elements.Bounds) elements.Element {
		b := Button{
			Block: blocks.Block{ContainerBounds: bounds},
		}
		for op := range ops {
			ops[op](&b)
		}

		return &b
	}
}

type Button struct {
	blocks.Block

	onClick     func(ms mouse.State)
	onMouseDown func(ms mouse.State)
	onMouseUp   func(ms mouse.State)
}

func (b *Button) HandleMouseEvent(ms mouse.State) bool {
	if !b.Block.ContainerBounds.Contains(elements.Point{
		X: float64(ms.X),
		Y: float64(ms.Y),
	}) {
		return false
	}
	switch {
	case b.onClick != nil && (ms.RightClicked || ms.LeftClicked):
		b.onClick(ms)
		return true
	case b.onMouseUp != nil && (ms.RightChanged && !ms.RightDown || ms.LeftChanged && !ms.LeftDown):
		b.onMouseUp(ms)
		return true
	case b.onMouseDown != nil && (ms.RightChanged && ms.RightDown || ms.LeftChanged && ms.LeftDown):
		b.onMouseDown(ms)
		return true
	}

	return false
}