package dml

import (
	"encoding/xml"
	"fmt"

	"go.devnw.com/ooxml"
)

type CT_FillStyleList struct {
	EG_FillProperties []*EG_FillProperties
}

func NewCT_FillStyleList() *CT_FillStyleList {
	ret := &CT_FillStyleList{}
	return ret
}

func (m *CT_FillStyleList) MarshalXML(e *xml.Encoder, start xml.StartElement) error {
	e.EncodeToken(start)
	for _, c := range m.EG_FillProperties {
		c.MarshalXML(e, xml.StartElement{})
	}
	e.EncodeToken(xml.EndElement{Name: start.Name})
	return nil
}

func (m *CT_FillStyleList) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error {
	// initialize to default
lCT_FillStyleList:
	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/drawingml/2006/main", Local: "noFill"},
				xml.Name{Space: "http://purl.oclc.org/ooxml/drawingml/main", Local: "noFill"}:
				tmpfillproperties := NewEG_FillProperties()
				tmpfillproperties.NoFill = NewCT_NoFillProperties()
				if err := d.DecodeElement(tmpfillproperties.NoFill, &el); err != nil {
					return err
				}
				m.EG_FillProperties = append(m.EG_FillProperties, tmpfillproperties)
			case xml.Name{Space: "http://schemas.openxmlformats.org/drawingml/2006/main", Local: "solidFill"},
				xml.Name{Space: "http://purl.oclc.org/ooxml/drawingml/main", Local: "solidFill"}:
				tmpfillproperties := NewEG_FillProperties()
				tmpfillproperties.SolidFill = NewCT_SolidColorFillProperties()
				if err := d.DecodeElement(tmpfillproperties.SolidFill, &el); err != nil {
					return err
				}
				m.EG_FillProperties = append(m.EG_FillProperties, tmpfillproperties)
			case xml.Name{Space: "http://schemas.openxmlformats.org/drawingml/2006/main", Local: "gradFill"},
				xml.Name{Space: "http://purl.oclc.org/ooxml/drawingml/main", Local: "gradFill"}:
				tmpfillproperties := NewEG_FillProperties()
				tmpfillproperties.GradFill = NewCT_GradientFillProperties()
				if err := d.DecodeElement(tmpfillproperties.GradFill, &el); err != nil {
					return err
				}
				m.EG_FillProperties = append(m.EG_FillProperties, tmpfillproperties)
			case xml.Name{Space: "http://schemas.openxmlformats.org/drawingml/2006/main", Local: "blipFill"},
				xml.Name{Space: "http://purl.oclc.org/ooxml/drawingml/main", Local: "blipFill"}:
				tmpfillproperties := NewEG_FillProperties()
				tmpfillproperties.BlipFill = NewCT_BlipFillProperties()
				if err := d.DecodeElement(tmpfillproperties.BlipFill, &el); err != nil {
					return err
				}
				m.EG_FillProperties = append(m.EG_FillProperties, tmpfillproperties)
			case xml.Name{Space: "http://schemas.openxmlformats.org/drawingml/2006/main", Local: "pattFill"},
				xml.Name{Space: "http://purl.oclc.org/ooxml/drawingml/main", Local: "pattFill"}:
				tmpfillproperties := NewEG_FillProperties()
				tmpfillproperties.PattFill = NewCT_PatternFillProperties()
				if err := d.DecodeElement(tmpfillproperties.PattFill, &el); err != nil {
					return err
				}
				m.EG_FillProperties = append(m.EG_FillProperties, tmpfillproperties)
			case xml.Name{Space: "http://schemas.openxmlformats.org/drawingml/2006/main", Local: "grpFill"},
				xml.Name{Space: "http://purl.oclc.org/ooxml/drawingml/main", Local: "grpFill"}:
				tmpfillproperties := NewEG_FillProperties()
				tmpfillproperties.GrpFill = NewCT_GroupFillProperties()
				if err := d.DecodeElement(tmpfillproperties.GrpFill, &el); err != nil {
					return err
				}
				m.EG_FillProperties = append(m.EG_FillProperties, tmpfillproperties)
			default:
				office.Log("skipping unsupported element on CT_FillStyleList %v", el.Name)
				if err := d.Skip(); err != nil {
					return err
				}
			}
		case xml.EndElement:
			break lCT_FillStyleList
		case xml.CharData:
		}
	}
	return nil
}

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

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