package formatters

import (

	"strings"

	"testing"

	assert "github.com/alecthomas/assert/v2"

	"github.com/alecthomas/chroma/v2"

)

func TestClosestColour(t *testing.T) {

	actual := findClosest(ttyTables[256], chroma.MustParseColour("#e06c75"))

	assert.Equal(t, chroma.MustParseColour("#d75f87"), actual)

}

func TestNoneColour(t *testing.T) {

	formatter := TTY256

	tokenType := chroma.None

	style, err := chroma.NewStyle("test", chroma.StyleEntries{

		chroma.Background: "#D0ab1e",

	})

	assert.NoError(t, err)

	stringBuilder := strings.Builder{}

	err = formatter.Format(&stringBuilder, style, chroma.Literator(chroma.Token{

		Type:  tokenType,

		Value: "WORD",

	}))

	assert.NoError(t, err)

	// "178" = #d7af00 approximates #d0ab1e

	//

	// 178 color ref: https://jonasjacek.github.io/colors/

	assert.Equal(t, "\033[38;5;178mWORD\033[0m", stringBuilder.String())

}