package main

import (
	"fmt"
	"os"
	"regexp"
)

var loading_emoji = os.Getenv("LOADING_EMOJI")

var urlPattern = regexp.MustCompile(`https?://\S+`)

func extractURLFromString(in_url string) string {
	return string(urlPattern.Find([]byte(in_url)))
}

// Helper function to create string pointer
func ptr(s string) *string {
	return &s
}

func formatBytes(b int) string {
	switch {
	case b >= 1<<30:
		return fmt.Sprintf("%.1f GB", float64(b)/float64(1<<30))
	case b >= 1<<20:
		return fmt.Sprintf("%.1f MB", float64(b)/float64(1<<20))
	case b >= 1<<10:
		return fmt.Sprintf("%.1f KB", float64(b)/float64(1<<10))
	default:
		return fmt.Sprintf("%d B", b)
	}
}