package dcp

import "encoding/xml"

const (
	CompositionPlaylistNamespaceIOP   = "http://www.digicine.com/PROTO-ASDCP-CPL-20040511#"
	CompositionPlaylistNamespaceSMPTE = "http://www.smpte-ra.org/schemas/429-7/2006/CPL"
)

type CompositionPlaylist struct {
	XMLName          xml.Name `xml:"CompositionPlaylist"`
	Id               string   `xml:"Id"`
	AnnotationText   string   `xml:"AnnotationText"`
	IssueDate        string   `xml:"IssueDate"`
	Issuer           string   `xml:"Issuer"`
	Creator          string   `xml:"Creator"`
	ContentTitleText string   `xml:"ContentTitleText,omitempty"`
	ContentKind      string   `xml:"ContentKind"`
	RatingList       []any    `xml:"RatingList>Rating"`
	Reels            []Reel   `xml:"ReelList>Reel"`

	Signer any `xml:"Signer"`
}

func (cpl CompositionPlaylist) IsIOP() bool {
	return cpl.XMLName.Space == CompositionPlaylistNamespaceIOP
}

func (cpl CompositionPlaylist) IsSMPTE() bool {
	return cpl.XMLName.Space == CompositionPlaylistNamespaceSMPTE
}

type Reel struct {
	Id           string     `xml:"Id"`
	MainPicture  *ReelAsset `xml:"AssetList>MainPicture,omitempty"`
	MainSound    *ReelAsset `xml:"AssetList>MainSound,omitempty"`
	MainSubtitle *ReelAsset `xml:"AssetList>MainSubtitle,omitempty"`

	ClosedCaption *ReelAsset `xml:"AssetList>ClosedCaption,omitempty"`

	MainClosedCaption *ReelAsset `xml:"AssetList>MainClosedCaption,omitempty"`

	MainMarker *ReelMarker `xml:"AssetList>MainMarker,omitempty"`

	CompositionMetadataAsset *CompositionMetadataAsset `xml:"AssetList>CompositionMetadataAsset,omitempty"`
}

func (r Reel) Assets() (assets []ReelAsset) {
	if r.MainPicture != nil {
		assets = append(assets, *r.MainPicture)
	}
	if r.MainSound != nil {
		assets = append(assets, *r.MainSound)
	}
	if r.MainSubtitle != nil {
		assets = append(assets, *r.MainSubtitle)
	}
	if r.ClosedCaption != nil {
		assets = append(assets, *r.ClosedCaption)
	}
	if r.MainClosedCaption != nil {
		assets = append(assets, *r.MainClosedCaption)
	}
	return assets
}

type ReelAsset struct {
	XMLName xml.Name

	Id   string `xml:"Id"`
	Hash string `xml:"Hash"`

	Language string `xml:"Language,omitempty"`

	KeyId string `xml:"KeyId,omitempty"`

	IntrinsicDuration int `xml:"IntrinsicDuration"`
	EntryPoint        int `xml:"EntryPoint"`
	Duration          int `xml:"Duration"`

	EditRate          string `xml:"EditRate,omitempty"`
	FrameRate         string `xml:"FrameRate,omitempty"`
	ScreenAspectRatio string `xml:"ScreenAspectRatio,omitempty"`

	Size             int64   `xml:"Size"`
	Type             string  `xml:"Type"`
	OriginalFileName string  `xml:"OriginalFileName,omitempty"`
	AnnotationText   *string `xml:"AnnotationText,omitempty"`
}

type ReelMarker struct {
	Id string `xml:"Id"`

	IntrinsicDuration int `xml:"IntrinsicDuration"`
	EntryPoint        int `xml:"EntryPoint"`
	Duration          int `xml:"Duration"`

	EditRate string `xml:"EditRate,omitempty"`

	MarkerList []struct {
		Label  string `xml:"Label"`
		Offset int    `xml:"Offset"`
	} `xml:"MarkerList>Marker"`
}

type CompositionMetadataAsset struct {
	XMLName xml.Name `xml:"CompositionMetadataAsset"`

	FullContentTitleText   string     `xml:"FullContentTitleText,omitempty"`
	ReleaseTerritory       string     `xml:"ReleaseTerritory,omitempty"`
	Distributor            string     `xml:"Distributor,omitempty"`
	Facility               string     `xml:"Facility,omitempty"`
	Luminance              *Luminance `xml:"Luminance,omitempty"`
	MainSoundConfiguration string     `xml:"MainSoundConfiguration,omitempty"`
	MainSoundSampleRate    string     `xml:"MainSoundSampleRate,omitempty"`
	MainPictureStoredArea  struct {
		Width  int `xml:"Width"`
		Height int `xml:"Height"`
	} `xml:"MainPictureStoredArea"`
	MainPictureActiveArea struct {
		Width  int `xml:"Width"`
		Height int `xml:"Height"`
	} `xml:"MainPictureActiveArea"`
	MainSubtitleLanguageList string `xml:"MainSubtitleLanguageList,omitempty"`
}

// Luminance The screen luminance at which the content was authored. see https://pub.smpte.org/latest/st429-16/index.html#sec-luminance
type Luminance struct {
	// Units can be foot-lambert or candela-per-square-metre
	// 1 foot-lambert = 3.426 candela-per-square-metre
	Units string  `xml:"units,attr"`
	Value float64 `xml:",chardata"`
}