func ParseSlotRange()

in store/slot.go [106:146]

• 39 lines of code
• 10 McCabe index (conditional complexity)

func ParseSlotRange(s string) (*SlotRange, error) {
	numberOfRanges := strings.Count(s, "-")
	if numberOfRanges > 1 {
		return nil, fmt.Errorf("%w, cannot have more than one range", consts.ErrInvalidArgument)
	}

	index := strings.IndexByte(s, '-')
	if index == -1 {
		start, err := strconv.Atoi(s)
		if err != nil {
			return nil, err
		}
		if start < MinSlotID || start > MaxSlotID {
			return nil, ErrSlotOutOfRange
		}
		return &SlotRange{
			Start: start,
			Stop:  start,
		}, nil
	}

	start, err := strconv.Atoi(s[0:index])
	if err != nil {
		return nil, err
	}
	stop, err := strconv.Atoi(s[index+1:])
	if err != nil {
		return nil, err
	}
	if start > stop {
		return nil, errors.New("start slot id greater than stop slot id")
	}
	if (start < MinSlotID || start > MaxSlotID) ||
		(stop < MinSlotID || stop > MaxSlotID) {
		return nil, ErrSlotOutOfRange
	}
	return &SlotRange{
		Start: start,
		Stop:  stop,
	}, nil
}