import "github.com/uget/uget/core"

// First, get your links from somewhere:
urls := ...
// Then, create a new downloader:
downloader := core.NewClient()
// Add those links to the downloader's queue:
waitGroup := downloader.AddURLs(urls)
// Register some callbacks:
downloader.OnDownload(func(download *core.Download) {
	// Access the File field:
	download.File.Name()
	download.File.URL()
	download.File.Length()

	// hashObject is a hash.Hash used for generating a checksum
	checksum, algorithmName, hashObject := download.File.Checksum()

	// the provider, e.g. basic / imgur.com / uploaded.net / oboom.com etc.
	// see a list of all providers at https://github.com/uget/providers
	download.File.Provider()

	// wait for download to finish:
	download.Wait()
	// and get the error if there was one:
	download.Err()

	// OR: print download status every second

	interval := 1*time.Second
	ticker := time.NewTicker(interval)
	defer ticker.Stop()

	fmt.Printf("%s: started\n", download.File.Name())
	for {
		select {
		case <-ticker.C:
			percentage := download.Progress() / download.File.Size()
			fmt.Printf("  %s: %.2f%% of %d\n", download.File.Name(), percentage, download.File.Size())
		case <-download.Waiter():
			if download.Err() != nil {
				fmt.Printf("  %s: ERROR! %v\n", download.File.Name(), download.Err())
			} else {
				fmt.Printf("  %s: DONE!\n", download.File.Name())
			}
			return
		}
	}
})
// Start client (in the background)
downloader.Start()

// Wait for the jobs provided earlier to finish
waitGroup.Wait()

// No downloads left, all jobs done.