Add new options in multiselect

components/input/option.go

@@ -0,0 +1,38 @@
+package input
+
+import "fmt"
+
+// Option is an option for select fields.
+type Option[T comparable] struct {
+	Key      string
+	Value    T
+	selected bool
+}
+
+// NewOptions returns new options from a list of values.
+func NewOptions[T comparable](values ...T) []Option[T] {
+	options := make([]Option[T], len(values))
+	for i, o := range values {
+		options[i] = Option[T]{
+			Key:   fmt.Sprint(o),
+			Value: o,
+		}
+	}
+	return options
+}
+
+// NewOption returns a new select option.
+func NewOption[T comparable](key string, value T) Option[T] {
+	return Option[T]{Key: key, Value: value}
+}
+
+// Selected sets whether the option is currently selected.
+func (o Option[T]) Selected(selected bool) Option[T] {
+	o.selected = selected
+	return o
+}
+
+// String returns the key of the option.
+func (o Option[T]) String() string {
+	return o.Key
+}