package images

// import (
// 	"errors"
// 	"strconv"
// 	"time"

// 	"git.velvettear.de/velvettear/image-frame/config"
// 	"git.velvettear.de/velvettear/loggo"
// )

// // internal history of displayed images
// var history []scaledImage

// // add a image to the history
// func addToHistory(scaledImage scaledImage) {
// 	timestamp := time.Now().UnixMilli()
// 	historyLimit := config.GetImageSlideshowHistory()
// 	if historyLimit <= 0 {
// 		return
// 	}
// 	history = append(history, scaledImage)
// 	diff := len(history) - historyLimit
// 	if diff > 0 {
// 		history = history[diff:]
// 	}
// 	loggo.DebugTimed("added image to history", timestamp, "history size: "+strconv.Itoa(len(history)))
// }

// // get and remove the latest image from history
// func getLatestFromHistory() (scaledImage, error) {
// 	var scaledImage scaledImage
// 	if len(history) == 0 {
// 		return scaledImage, errors.New("history is empty")
// 	}
// 	index := len(history) - 1
// 	scaledImage = history[index]
// 	history = history[:index]
// 	return scaledImage, nil
// }