Alexander Lazarenko
eaaa634558
Reorganize code by removing unused files, restructuring package organization, and updating import references to new paths. This simplifies handling of smart and protocol-related operations, improves maintainability, and eliminates redundancy.
140 lines
3.3 KiB
Go
140 lines
3.3 KiB
Go
package protocol
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import (
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"encoding/json"
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"fmt"
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"strconv"
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"time"
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)
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type PayloadType uint8
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const (
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PayloadTypeData PayloadType = 0
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PayloadTypeLive PayloadType = 2
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PayloadTypeDownload PayloadType = 3
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PayloadTypePlayback PayloadType = 4
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PayloadTypeCapturedPhotos PayloadType = 6
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PayloadTypeParameterImport PayloadType = 10
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PayloadTypeParameterExport PayloadType = 11
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PayloadTypeTransmissionSubStream PayloadType = 15
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PayloadTypeRecordingSubStream PayloadType = 16
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PayloadTypeBlackBox PayloadType = 17
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PayloadTypeSpecial PayloadType = 22
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PayloadTypeMaintainData PayloadType = 30
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)
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type SpecialPayloadType uint16
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const (
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SpecialPayloadTypeHeartbeat SpecialPayloadType = iota
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SpecialPayloadTypeHeartbeatWithoutBody
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SpecialPayloadTypeGPS
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SpecialPayloadTypeMileage
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SpecialPayloadTypeEnvironmentalQuality
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SpecialPayloadTypeDrivingPosture
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SpecialPayloadTypeScanningGun
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SpecialPayloadTypeOil
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SpecialPayloadTypeGDS
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SpecialPayloadTypeGPSToBWS
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SpecialPayloadTypeCANBOX
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SpecialPayloadTypeGSenor
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SpecialPayloadTypeAckGPS
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)
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type Message struct {
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Module string `json:"MODULE"`
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Session string `json:"SESSION"`
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Operation string `json:"OPERATION"`
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Parameter interface{} `json:"PARAMETER,omitempty"`
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Response interface{} `json:"RESPONSE,omitempty"`
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}
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// 3.4.5.27.1
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type GPSData struct {
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GPSStatus uint8
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Expand uint8
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Real uint8
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Longitude float64
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Latitude float64
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Speed float64
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Direction float64
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Altitude int32
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Time time.Time
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}
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func (g *GPSData) MarshalJSON() ([]byte, error) {
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var alias struct {
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GPSStatus uint8 `json:"V"`
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Longitude string `json:"J"`
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Latitude string `json:"W"`
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Speed uint `json:"S"`
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Direction uint `json:"C"`
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Altitude int32 `json:"H"`
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Time string `json:"T"`
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}
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alias.GPSStatus = g.GPSStatus
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alias.Longitude = fmt.Sprintf("%.6f", g.Longitude)
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alias.Latitude = fmt.Sprintf("%.6f", g.Latitude)
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alias.Speed = uint(g.Speed * 100)
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alias.Direction = uint(g.Direction * 100)
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alias.Altitude = g.Altitude
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alias.Time = g.Time.Format("20060102150405")
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return json.Marshal(alias)
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}
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func (g *GPSData) UnmarshalJSON(data []byte) (err error) {
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var alias struct {
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GPSStatus uint8 `json:"V"`
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Longitude string `json:"J"`
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Latitude string `json:"W"`
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Speed uint `json:"S"`
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Direction uint `json:"C"`
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Altitude int32 `json:"H"`
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Time string `json:"T"`
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}
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if err = json.Unmarshal(data, &alias); err != nil {
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return
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}
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g.GPSStatus = alias.GPSStatus
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if g.Longitude, err = strconv.ParseFloat(alias.Longitude, 64); err != nil {
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return fmt.Errorf("invalid longitude: %w", err)
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}
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if g.Latitude, err = strconv.ParseFloat(alias.Latitude, 64); err != nil {
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return fmt.Errorf("invalid latitude: %w", err)
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}
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g.Speed = float64(alias.Speed) / 100.0
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g.Direction = float64(alias.Direction) / 100.0
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g.Altitude = alias.Altitude
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g.Time, _ = time.Parse("20060102150405", alias.Time)
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return nil
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}
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type Package struct {
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Version uint8
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EncryptionFlag bool
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CompressFlag bool
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CSRCCount uint8
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PayloadType PayloadType
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SSRC SpecialPayloadType
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Reserved uint64
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CSRC [16]uint64
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GPS GPSData
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payloadLen uint64
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Payload Message
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RawPayload []byte
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Accum []byte
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}
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