helpers

type AuthenticityData struct {
	ImageUniqueID    string        `json:"imageUniqueID"`
	MakerNote        MakerNoteData `json:"makerNote"`
	RelatedSoundFile string        `json:"relatedSoundFile"`
}

type AuthorshipData struct {
	Artist           string `json:"artist"`
	Copyright        string `json:"copyright"`
	ImageDescription string `json:"imageDescription"`
	XPTitle          string `json:"xpTitle"`
	XPComment        string `json:"xpComment"`
	XPAuthor         string `json:"xpAuthor"`
	XPKeywords       string `json:"xpKeywords"`
	XPSubject        string `json:"xpSubject"`
	UserComment      string `json:"userComment"`
}

type CameraSettings struct {
	ExposureTime         string  `json:"exposureTime"`
	FNumber              float64 `json:"fNumber"`
	ExposureProgram      string  `json:"exposureProgram"`
	ISO                  int     `json:"iso"`
	FocalLength          float64 `json:"focalLength"`
	MeteringMode         string  `json:"meteringMode"`
	LightSource          string  `json:"lightSource"`
	FlashFired           string  `json:"flashFired"`
	WhiteBalance         string  `json:"whiteBalance"`
	SceneCaptureType     string  `json:"sceneCaptureType"`
	SubjectDistanceRange string  `json:"subjectDistanceRange"`
}

type ContainerItem struct {
	Mime     string `xml:"Mime,attr"`
	Semantic string `xml:"Semantic,attr"`
	Length   int    `xml:"Length,attr,omitempty"`
}

type DeviceData struct {
	Make             string `json:"make"`
	Model            string `json:"model"`
	BodySerialNumber string `json:"bodySerialNumber"`
	SerialNumber     string `json:"serialNumber"`
	CameraFirmware   string `json:"cameraFirmware"`
	LensInfo         string `json:"lensInfo"`
	LensMake         string `json:"lensMake"`
	LensModel        string `json:"lensModel"`
	LensSerialNumber string `json:"lensSerialNumber"`
}

type GPSExif struct {
	Version              string    `json:"version"`
	Altitude             float64   `json:"altitude"`
	Latitude             float64   `json:"latitude"`
	Longitude            float64   `json:"longitude"`
	Timestamp            time.Time `json:"timestamp"`
	Speed                string    `json:"speed"`
	Direction            string    `json:"direction"`
	MapDatum             string    `json:"mapDatum"`
	DestinationLatitude  float64   `json:"destinationLatitude"`
	DestinationLongitude float64   `json:"destinationLongitude"`
	DestinationBearing   string    `json:"destinationBearing"`
	DestinationDistance  string    `json:"destinationDistance"`
	ProcessingMethod     string    `json:"processingMethod"`
	Differential         string    `json:"differential"`
}

type IFDEntry struct {
	Tag         Tag
	DataType    uint16
	Count       uint32
	ValueOffset uint32
}

type ImageProperties struct {
	Width            int     `json:"width"`
	Height           int     `json:"height"`
	PixelXDimension  float64 `json:"pixelXDimension"`
	PixelYDimension  float64 `json:"pixelYDimension"`
	Orientation      string  `json:"orientation"`
	ColorSpace       string  `json:"colorSpace"`
	ComponentsConfig string  `json:"componentsConfiguration"`
	FileSource       string  `json:"fileSource"`
	SceneType        string  `json:"sceneType"`
	ExifVersion      string  `json:"exifVersion"`
	FlashpixVersion  string  `json:"flashpixVersion"`
}

type MakerNoteData struct {
	Raw          []byte                 `json:"raw"`
	Manufacturer string                 `json:"manufacturer"`
	Parsed       map[string]interface{} `json:"parsed"`
}

type PhotoExifEvidence struct {
	Temporal     TemporalData     `json:"temporal"`
	GPS          GPSExif          `json:"gps"`
	Device       DeviceData       `json:"device"`
	Image        ImageProperties  `json:"image"`
	Camera       CameraSettings   `json:"camera"`
	Processing   ProcessingData   `json:"processing"`
	Authorship   AuthorshipData   `json:"authorship"`
	Authenticity AuthenticityData `json:"authenticity"`
}

type ProcessingData struct {
	Software            string  `json:"software"`
	ProcessingSoftware  string  `json:"processingSoftware"`
	ImageEditor         string  `json:"imageEditor"`
	DigitalZoomRatio    float64 `json:"digitalZoomRatio"`
	Contrast            string  `json:"contrast"`
	Saturation          string  `json:"saturation"`
	Sharpness           string  `json:"sharpness"`
	CompositeImage      string  `json:"compositeImage"`
	CompositeImageCount string  `json:"compositeImageCount"`
}

type Tag uint16

type TemporalData struct {
	DateCaptured        time.Time `json:"dateCaptured"`
	CreateDate          time.Time `json:"createDate"`
	ModifyDate          time.Time `json:"modifyDate"`
	SubSecTime          string    `json:"subSecTime"`
	SubSecTimeOriginal  string    `json:"subSecTimeOriginal"`
	SubSecTimeDigitized string    `json:"subSecTimeDigitized"`
	OffsetTime          string    `json:"offsetTime"`
	OffsetTimeOriginal  string    `json:"offsetTimeOriginal"`
	OffsetTimeDigitized string    `json:"offsetTimeDigitized"`
}

type ValueExtractor struct {
	Data      []byte
	TiffStart int
	Endian    binary.ByteOrder
}

type XmpMeta struct {
	XMLName xml.Name `xml:"xmpmeta"`
	RDF     struct {
		XMLName     xml.Name `xml:"RDF"`
		Description struct {
			XMLName          xml.Name `xml:"Description"`
			Version          string   `xml:"Version,attr"`
			HasExtendedXMP   string   `xml:"HasExtendedXMP,attr"`
			HdrPlusMakerNote string   `xml:"HdrPlusMakernote,attr"`
			Directory        struct {
				XMLName  xml.Name `xml:"Directory"`
				Sequence struct {
					XMLName xml.Name `xml:"Seq"`
					Items   []struct {
						XMLName       xml.Name      `xml:"li"`
						ParseType     string        `xml:"parseType,attr"`
						ContainerItem ContainerItem `xml:"Item"`
					} `xml:"li"`
				} `xml:"Seq"`
			} `xml:"Directory"`
		} `xml:"Description"`
	} `xml:"RDF"`
}