package wml

import (
	"encoding/xml"
	"fmt"

	"go.devnw.com/ooxml"
)

type CT_DocRsids struct {
	// Original Document Revision Save ID
	RsidRoot *CT_LongHexNumber
	// Single Session Revision Save ID
	Rsid []*CT_LongHexNumber
}

func NewCT_DocRsids() *CT_DocRsids {
	ret := &CT_DocRsids{}
	return ret
}

func (m *CT_DocRsids) MarshalXML(e *xml.Encoder, start xml.StartElement) error {
	e.EncodeToken(start)
	if m.RsidRoot != nil {
		sersidRoot := xml.StartElement{Name: xml.Name{Local: "w:rsidRoot"}}
		e.EncodeElement(m.RsidRoot, sersidRoot)
	}
	if m.Rsid != nil {
		sersid := xml.StartElement{Name: xml.Name{Local: "w:rsid"}}
		for _, c := range m.Rsid {
			e.EncodeElement(c, sersid)
		}
	}
	e.EncodeToken(xml.EndElement{Name: start.Name})
	return nil
}

func (m *CT_DocRsids) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error {
	// initialize to default
lCT_DocRsids:
	for {
		tok, err := d.Token()
		if err != nil {
			return err
		}
		switch el := tok.(type) {
		case xml.StartElement:
			switch el.Name {
			case xml.Name{Space: "http://schemas.openxmlformats.org/wordprocessingml/2006/main", Local: "rsidRoot"},
				xml.Name{Space: "http://purl.oclc.org/ooxml/wordprocessingml/main", Local: "rsidRoot"}:
				m.RsidRoot = NewCT_LongHexNumber()
				if err := d.DecodeElement(m.RsidRoot, &el); err != nil {
					return err
				}
			case xml.Name{Space: "http://schemas.openxmlformats.org/wordprocessingml/2006/main", Local: "rsid"},
				xml.Name{Space: "http://purl.oclc.org/ooxml/wordprocessingml/main", Local: "rsid"}:
				tmp := NewCT_LongHexNumber()
				if err := d.DecodeElement(tmp, &el); err != nil {
					return err
				}
				m.Rsid = append(m.Rsid, tmp)
			default:
				office.Log("skipping unsupported element on CT_DocRsids %v", el.Name)
				if err := d.Skip(); err != nil {
					return err
				}
			}
		case xml.EndElement:
			break lCT_DocRsids
		case xml.CharData:
		}
	}
	return nil
}

// Validate validates the CT_DocRsids and its children
func (m *CT_DocRsids) Validate() error {
	return m.ValidateWithPath("CT_DocRsids")
}

// ValidateWithPath validates the CT_DocRsids and its children, prefixing error messages with path
func (m *CT_DocRsids) ValidateWithPath(path string) error {
	if m.RsidRoot != nil {
		if err := m.RsidRoot.ValidateWithPath(path + "/RsidRoot"); err != nil {
			return err
		}
	}
	for i, v := range m.Rsid {
		if err := v.ValidateWithPath(fmt.Sprintf("%s/Rsid[%d]", path, i)); err != nil {
			return err
		}
	}
	return nil
}
