package ui

import (
	"code.ur.gs/lupine/ordoor/internal/menus"
)

func init() {
	registerBuilder(menus.TypeCheckbox, registerCheckbox)
}

type checkbox struct {
	button

	valueImpl
}

// A checkbox has 3 sprites, and 3 states: unchecked, checked, disabled.
func registerCheckbox(d *Driver, r *menus.Record) error {
	sprites, err := d.menu.Sprites(r.Share, 3) // unchecked, disabled, checked
	if err != nil {
		return err
	}

	checkbox := &checkbox{
		button: button{
			path:      r.Path(),
			baseSpr:   sprites[0], // unchecked
			clickSpr:  sprites[2], // checked
			frozenSpr: sprites[1],
			hoverImpl: hoverImpl{text: r.Desc},
		},
		valueImpl: valueImpl{str: "0"},
	}

	d.clickables = append(d.clickables, checkbox)
	d.freezables = append(d.freezables, checkbox)
	d.hoverables = append(d.hoverables, checkbox)
	d.paintables = append(d.paintables, checkbox)
	d.valueables = append(d.valueables, checkbox)

	return nil
}

func (c *checkbox) registerMouseClick() {
	if c.value() == "1" { // Click disables
		c.setValue("0")
	} else { // Click enables
		c.setValue("1")
	}
}

func (c *checkbox) regions(tick int) []region {
	if c.isFrozen() {
		return oneRegion(c.bounds().Min, c.frozenSpr.Image)
	}

	if c.value() == "1" {
		return oneRegion(c.bounds().Min, c.clickSpr.Image)
	}

	return oneRegion(c.bounds().Min, c.baseSpr.Image)
}