package structs

import "strings"

// TagOptions contains a slice of tag options
type TagOptions []string

// Has returns true if the given option is available in TagOptions
func (t TagOptions) Has(opt string) bool {
	for _, tagOpt := range t {
		if tagOpt == opt {
			return true
		}
	}

	return false
}

// ParseTag splits a struct field's tag into its name and a list of options
// which comes after a name. A tag is in the form of: "name,option1,option2".
// The name can be neglectected.
func ParseTag(tag string) (string, TagOptions) {
	// tag is one of followings:
	// ""
	// "name"
	// "name,opt"
	// "name,opt,opt2"
	// ",opt"

	res := strings.Split(tag, ",")
	return res[0], res[1:]
}