func RangeStartIndex()

in pkg/context/context.go [115:139]

• 18 lines of code
• 6 McCabe index (conditional complexity)

func RangeStartIndex(rangeValue string) (int64, error) {
	if rangeValue == "" {
		return 0, errors.New("no range header")
	}

	// split the range value by "="
	parts := strings.Split(rangeValue, "=")
	if len(parts) != 2 || parts[0] != "bytes" {
		return 0, errors.New("invalid range format")
	}

	// split the byte range by "-"
	ranges := strings.Split(parts[1], "-")
	if len(ranges) != 2 {
		return 0, errors.New("invalid range format")
	}

	// convert the start index to an integer
	startIndex, err := strconv.Atoi(ranges[0])
	if err != nil {
		return 0, err
	}

	return int64(startIndex), nil
}