package atom

import (
	"encoding/xml"
	"errors"
)

type XHTMLDiv struct {
	XMLName xml.Name `xml:"div"`
	XMLNS   string   `xml:"xmlns,attr"`
	Content string   `xml:",innerxml"`
}

// NewXHTMLDiv creates a new XHTMLDiv. It returns a *XHTMLDiv.
func NewXHTMLDiv(content string) *XHTMLDiv {
	return &XHTMLDiv{
		XMLNS:   "http://www.w3.org/1999/xhtml",
		Content: content,
	}
}

// Check checks the XHTMLDiv for incompatibilities with RFC4287. It returns an
// error.
func (x *XHTMLDiv) Check() error {
	if x.XMLNS != "http://www.w3.org/1999/xhtml" {
		return errors.New("xmlns attribute of xhtml text must be http://www.w3.org/1999/xhtml")
	}

	return nil
}