package oklab

import (
	"math"
	"testing"

	"smariot.com/color/internal/helper"
)

func eq(c0, c1 Color) bool {
	return helper.EqFloat64SliceFuzzy(
		[]float64{c0.Lightness, c0.ChromaA, c0.ChromaB},
		[]float64{c1.Lightness, c1.ChromaA, c1.ChromaB},
	)
}

func midpoint(c0, c1 Color) Color {
	return Color{(c0.Lightness + c1.Lightness) / 2, (c0.ChromaA + c1.ChromaA) / 2, (c0.ChromaB + c1.ChromaB) / 2}
}

func TestModel(t *testing.T) {
	helper.TestModel(t, false, Model, eq, []helper.ConvertTest[Color]{
		{
			Name: "passthrough",
			In:   Color{math.Inf(1), math.Inf(-1), math.NaN()},
			Out:  Color{math.Inf(1), math.Inf(-1), math.NaN()},
		},
	})
}

func TestDistance(t *testing.T) {
	helper.TestDistance(t, false, midpoint, Distance, Model)
}