package shortcode

import (
	"strconv"
)

// FieldHandler handles the [field] shortcode.
type FieldHandler struct{}

func init() {
	Register(FieldHandler{})
}

func (FieldHandler) Tag() string {
	return "field"
}

func (FieldHandler) Parse(attrs map[string]string) (interface{}, string) {
	idx, err := strconv.Atoi(attrs["idx"])
	if err != nil {
		return nil, ""
	}

	return &Field{
		Idx:   idx,
		Type:  attrs["type"], // empty when not specified — caller provides fallback
		Label: attrs["label"],
		Group: attrs["group"],
	}, ""
}