func AskRegion()

in pkg/question/question.go [128:176]
37 lines of code
6 McCabe index (conditional complexity)

func AskRegion(h *ec2helper.EC2Helper) (*string, error) {
	defaultRegion := h.Sess.Config.Region
	regionDescription := getRegionDescriptions()
	const regionPerRow = 1
	const elementPerRegion = 3

	// Get all enabled regions and make sure no error
	regions, err := h.GetEnabledRegions()
	if err != nil {
		return nil, err
	}

	data := [][]string{}
	indexedOptions := []string{}

	// Fill the data used for drawing a table and the options map
	var row []string
	for index, region := range regions {
		indexedOptions = append(indexedOptions, *region.RegionName)

		if index%regionPerRow == 0 {
			row = []string{}
		}

		row = append(row, fmt.Sprintf("%d.", index+1))
		row = append(row, fmt.Sprintf("%s", *region.RegionName))
		desc, found := (*regionDescription)[*region.RegionName]
		if found {
			row = append(row, desc)
		}

		// Append the row to the data when the row is filled with 4 elements
		if len(row) == regionPerRow*elementPerRegion {
			data = append(data, row)
		}
	}

	optionsText := table.BuildTable(data, []string{"Option", "Region", "Description"})
	question := "Region"

	answer := AskQuestion(&AskQuestionInput{
		QuestionString: question,
		DefaultOption:  defaultRegion,
		OptionsString:  &optionsText,
		IndexedOptions: indexedOptions,
	})

	return &answer, nil
}