package models

import "github.com/lucasb-eyer/go-colorful"

type ColorRGB struct {
	Red   float64 `json:"red"`
	Green float64 `json:"green"`
	Blue  float64 `json:"blue"`
}

func (rgb ColorRGB) AtIntensity(intensity float64) ColorRGB {
	hue, sat, _ := colorful.Color{R: rgb.Red, G: rgb.Green, B: rgb.Blue}.Hsv()
	hsv2 := colorful.Hsv(hue, sat, intensity)
	return ColorRGB{Red: hsv2.R, Green: hsv2.G, Blue: hsv2.B}
}

func (rgb ColorRGB) ToHS() ColorHS {
	hue, sat, _ := colorful.Color{R: rgb.Red, G: rgb.Green, B: rgb.Blue}.Hsv()
	return ColorHS{Hue: hue, Sat: sat}
}

func (rgb ColorRGB) ToXY() ColorXY {
	x, y, z := (colorful.Color{R: rgb.Red, G: rgb.Green, B: rgb.Blue}).Xyz()

	return ColorXY{
		X: x / (x + y + z),
		Y: y / (x + y + z),
	}
}