package design

import (
	"strconv"
	"strings"
)

const (
	DefaultGeneratedImageSize   = "1024x1024"
	DefaultGeneratedImageWidth  = 1024
	DefaultGeneratedImageHeight = 1024
)

func ParseImageSize(size string) (float64, float64, bool) {
	size = strings.ToLower(strings.TrimSpace(size))
	if size == "" {
		return 0, 0, false
	}
	size = strings.NewReplacer(" ", "", "\t", "", "\n", "", "×", "x", "*", "x").Replace(size)
	parts := strings.Split(size, "x")
	if len(parts) != 2 {
		return 0, 0, false
	}
	width, err := strconv.ParseFloat(parts[0], 64)
	if err != nil || width <= 0 {
		return 0, 0, false
	}
	height, err := strconv.ParseFloat(parts[1], 64)
	if err != nil || height <= 0 {
		return 0, 0, false
	}
	return width, height, true
}

func GeneratedImageDimensions(size string) (float64, float64) {
	if width, height, ok := ParseImageSize(size); ok {
		return width, height
	}
	return DefaultGeneratedImageWidth, DefaultGeneratedImageHeight
}