package opt

type StringOption struct {
	name        string
	shortName   string
	description string
	value       string
}

var _ Option = (*StringOption)(nil)

func String(name, shortName, defaultValue, description string) *StringOption {
	return &StringOption{
		name:        name,
		shortName:   shortName,
		description: description,
		value:       defaultValue,
	}
}

// Description implements Option.
func (o *StringOption) Description() string {
	return o.description
}

// Name implements Option.
func (o *StringOption) Name() string {
	return o.name
}

// ShortName implements Option.
func (o *StringOption) ShortName() string {
	return o.shortName
}

// Value implements Option.
func (o *StringOption) Parse(raw string) error {
	if raw == "" {
		return nil
	}

	o.value = raw
	return nil
}

// RequiresVal implements Option.
func (*StringOption) RequiresVal() bool {
	return true
}

func (o *StringOption) Value() string {
	return o.value
}