package ui

import (
	"image"
	"os"
)

type ImageSource interface {
	CreateImage() (image.Image, error)
}

type ImageFileSource string

var _ ImageSource = ImageFileSource("")

func (s ImageFileSource) CreateImage() (image.Image, error) {
	f, err := os.Open(string(s))
	if err != nil {
		return nil, err
	}
	defer f.Close()
	m, _, err := image.Decode(f)
	if err != nil {
		return nil, err
	}
	return m, nil
}

type ImageGoSource struct {
	image.Image
}

var _ ImageSource = ImageGoSource{}

func (s ImageGoSource) CreateImage() (image.Image, error) {
	return s.Image, nil
}