package codec

import (
	"bytes"
	"image"
	"io"

	"github.com/chai2010/webp"
)

type WebpCoder struct{}

func (coder WebpCoder) Decode(r io.Reader) (image.Image, error) {
	i, err := webp.Decode(r)
	if err != nil {
		return nil, err
	}
	return i, nil
}

func (coder WebpCoder) Encode(i image.Image, quality int) (buf bytes.Buffer, err error) {
	if err = webp.Encode(&buf, i, &webp.Options{Lossless: true, Quality: float32(quality)}); err != nil {
		return buf, err
	}
	return buf, nil
}