cmd

var RootCmd = &cobra.Command{
	Use:   "gopixabay /path/to/output",
	Short: "gopixabay image downloader",
	Long:  `gopixabay is an image downloader using the pixabay API`,
	Run: func(cmd *cobra.Command, args []string) {
		if len(args) != 1 {
			cmd.Help()
			return
		}

		validateSizeArgument()

		var result interface{}
		var err error

		switch arguments.request.ResponseGroup {
		case pbapi.ResponseGroupHighResolution:
			result, err = pbapi.QueryHighResolution(arguments.request)
		case pbapi.ResponseGroupImageDetails:
			result, err = pbapi.QueryImageDetails(arguments.request)
		default:
			log.Fatalf("Unknown response group: %s", arguments.request.ResponseGroup)
		}

		if err != nil {
			log.Fatal(err)
		}

		uiprogress.Start()
		wg := &sync.WaitGroup{}
		downloadChan := make(chan string)
		defer close(downloadChan)

		initWorkerThreads(args[0], wg, downloadChan)

		switch realResult := result.(type) {
		case *pbapi.HighResolutionResponse:
			for _, hit := range realResult.Hits {
				switch arguments.size {
				case og:
					downloadChan <- hit.ImageURL
				case lg:
					downloadChan <- hit.FullHDURL
				case md:
					downloadChan <- hit.LargeImageURL
				}
			}
		case *pbapi.ImageDetailsResponse:
			for _, hit := range realResult.Hits {
				switch arguments.size {
				case sm:
					downloadChan <- hit.WebFormatURL
				case xs:
					downloadChan <- hit.PreviewURL
				}
			}
		}

		wg.Wait()
		uiprogress.Stop()
		time.Sleep(time.Second)
	},
}