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use std::collections::BTreeMap;
use rs1090::decode::bds::bds09::AirborneVelocitySubType::{
AirspeedSubsonic, GroundSpeedDecoding,
};
use rs1090::decode::bds::bds09::AirspeedType::{IAS, TAS};
use rs1090::decode::{IdentityCode, SensorMetadata};
use rs1090::prelude::*;
use serde::Serialize;
use tokio::sync::Mutex;
use crate::{aircraftdb, Jet1090};
/**
* A state vector with the most up-to-date information about an aircraft
*/
#[derive(Debug, Serialize)]
pub struct Snapshot {
/// The ICAO 24-bit address of the aircraft transponder
pub icao24: String,
/// The timestamp of the first seen message
pub firstseen: u64,
/// The timestamp of the last seen message
pub lastseen: u64,
/// The callsign of the aircraft, ICAO flight number for commercial aircraft, often matches registration in General Aviation.
pub callsign: Option<String>,
/// The tail number of the aircraft. If the aircraft is not known in the local database, some heuristics may reconstruct the tail number in some countries.
pub registration: Option<String>,
/// The ICAO code to the type of aircraft, e.g. A32O or B789
pub typecode: Option<String>,
/// The squawk code, a 4-digit number set on the transponder, 7700 for general emergencies
pub squawk: Option<IdentityCode>,
/// WGS84 latitude angle in degrees
pub latitude: Option<f64>,
/// WGS84 longitude angle in degrees
pub longitude: Option<f64>,
/// Barometric altitude in feet, expressed in ISA
pub altitude: Option<u16>,
/// Altitude selected in the FMS
pub selected_altitude: Option<u16>,
/// Ground speed, in knots
pub groundspeed: Option<f64>,
/// Vertical rate of the aircraft, in feet/min
pub vertical_rate: Option<i16>,
/// The true track angle of the aircraft in degrees with respect to the geographic North
pub track: Option<f64>,
/// Indicated air speed, in knots
pub ias: Option<u16>,
/// True air speed, in knots
pub tas: Option<u16>,
/// The Mach number
pub mach: Option<f64>,
/// The roll angle of the aircraft in degrees (positive angle for banking to the right-hand side)
pub roll: Option<f64>,
/// The magnetic heading of the aircraft in degrees with respect to the magnetic North
pub heading: Option<f64>,
/// The NAC position indicator, for uncertainty
pub nacp: Option<u8>,
/// Number of messages received for the aircraft
pub count: usize,
/// Metadata information from the sensors seeing the aircraft
pub metadata: Vec<SensorMetadata>,
}
/**
* Contains information related to an aircraft: current state and history
*/
#[derive(Debug)]
pub struct StateVectors {
/// The latest state of the aircraft
pub cur: Snapshot,
/// The history of received messages
pub hist: Vec<TimedMessage>,
}
impl StateVectors {
fn new(
ts: u64,
icao24: String,
aircraftdb: &BTreeMap<String, aircraftdb::Aircraft>,
) -> StateVectors {
let hexid = u32::from_str_radix(&icao24, 16).unwrap_or(0);
let ac = aircraftdb.get(&icao24);
let typecode = match ac {
Some(ac) => ac.typecode.to_owned(),
None => None,
};
let mut registration = match ac {
Some(ac) => ac.registration.to_owned(),
None => None,
};
if registration.is_none() {
// Heuristics to decode the tail number
registration = rs1090::data::tail::tail(hexid);
}
let cur = Snapshot {
icao24,
firstseen: ts,
lastseen: ts,
callsign: None,
registration,
typecode,
squawk: None,
latitude: None,
longitude: None,
altitude: None,
selected_altitude: None,
groundspeed: None,
vertical_rate: None,
track: None,
ias: None,
tas: None,
mach: None,
roll: None,
heading: None,
nacp: None,
count: 0,
metadata: vec![],
};
StateVectors {
cur,
hist: Vec::<TimedMessage>::new(),
}
}
}
fn icao24(msg: &Message) -> Option<String> {
match &msg.df {
ShortAirAirSurveillance { ap, .. } => Some(ap.to_string()),
SurveillanceAltitudeReply { ap, .. } => Some(ap.to_string()),
SurveillanceIdentityReply { ap, .. } => Some(ap.to_string()),
AllCallReply { icao, .. } => Some(icao.to_string()),
LongAirAirSurveillance { ap, .. } => Some(ap.to_string()),
ExtendedSquitterADSB(ADSB { icao24, .. }) => Some(icao24.to_string()),
ExtendedSquitterTisB { cf, .. } => Some(cf.aa.to_string()),
CommBAltitudeReply { ap, .. } => Some(ap.to_string()),
CommBIdentityReply { ap, .. } => Some(ap.to_string()),
_ => None,
}
}
pub async fn update_snapshot(
states: &Mutex<Jet1090>,
msg: &mut TimedMessage,
aircraftdb: &BTreeMap<String, aircraftdb::Aircraft>,
) {
if let TimedMessage {
timestamp,
message: Some(message),
metadata,
..
} = msg
{
if let Some(icao24) = icao24(message) {
let states = &mut states.lock().await.state_vectors;
let aircraft =
states
.entry(icao24.to_string())
.or_insert(StateVectors::new(
*timestamp as u64,
icao24,
aircraftdb,
));
aircraft.cur.lastseen = *timestamp as u64;
aircraft.cur.metadata = metadata.to_vec();
aircraft.cur.count += 1;
match &mut message.df {
SurveillanceIdentityReply { id, .. } => {
aircraft.cur.squawk = Some(*id)
}
SurveillanceAltitudeReply { ac, .. } => {
aircraft.cur.altitude = Some(ac.0);
}
ExtendedSquitterADSB(adsb) => match &adsb.message {
ME::BDS05(bds05) => {
aircraft.cur.latitude = bds05.latitude;
aircraft.cur.longitude = bds05.longitude;
aircraft.cur.altitude = bds05.alt;
}
ME::BDS06(bds06) => {
aircraft.cur.latitude = bds06.latitude;
aircraft.cur.longitude = bds06.longitude;
aircraft.cur.track = bds06.track;
aircraft.cur.groundspeed = bds06.groundspeed;
aircraft.cur.altitude = None;
}
ME::BDS08(bds08) => {
if !bds08.callsign.contains("#") {
aircraft.cur.callsign =
Some(bds08.callsign.to_string())
}
}
ME::BDS09(bds09) => {
aircraft.cur.vertical_rate = bds09.vertical_rate;
match &bds09.velocity {
GroundSpeedDecoding(spd) => {
aircraft.cur.groundspeed =
Some(spd.groundspeed);
aircraft.cur.track = Some(spd.track)
}
AirspeedSubsonic(spd) => {
match spd.airspeed_type {
IAS => aircraft.cur.ias = spd.airspeed,
TAS => aircraft.cur.tas = spd.airspeed,
}
aircraft.cur.heading = spd.heading;
}
_ => {}
}
}
ME::BDS61(bds61) => {
aircraft.cur.squawk = Some(bds61.squawk);
}
ME::BDS62(bds62) => {
aircraft.cur.selected_altitude =
bds62.selected_altitude;
aircraft.cur.nacp = Some(bds62.nac_p);
}
ME::BDS65(bds65) => match bds65 {
AircraftOperationStatus::Airborne(st) => {
match st.version {
rs1090::decode::bds::bds65::ADSBVersionAirborne::DOC9871AppendixB(v) => {
aircraft.cur.nacp = Some(v.nac_p)
}
rs1090::decode::bds::bds65::ADSBVersionAirborne::DOC9871AppendixC(v) => {
aircraft.cur.nacp = Some(v.nac_p)
}
_ => {}
}
}
AircraftOperationStatus::Surface(st) => {
match st.version {
rs1090::decode::bds::bds65::ADSBVersionSurface::DOC9871AppendixB(v) => {
aircraft.cur.nacp = Some(v.nac_p)
}
rs1090::decode::bds::bds65::ADSBVersionSurface::DOC9871AppendixC(v) => {
aircraft.cur.nacp = Some(v.nac_p)
}
_ => {}
}
}
_ => {}
},
_ => {}
},
ExtendedSquitterTisB { cf, .. } => {
aircraft.cur.typecode = Some("GRND".to_string());
match &cf.me {
ME::BDS05(bds05) => {
aircraft.cur.latitude = bds05.latitude;
aircraft.cur.longitude = bds05.longitude;
aircraft.cur.altitude = bds05.alt;
}
ME::BDS06(bds06) => {
aircraft.cur.latitude = bds06.latitude;
aircraft.cur.longitude = bds06.longitude;
aircraft.cur.track = bds06.track;
aircraft.cur.groundspeed = bds06.groundspeed;
aircraft.cur.altitude = None;
}
ME::BDS08(bds08) => {
aircraft.cur.callsign =
Some(bds08.callsign.to_string())
}
_ => {}
}
}
CommBAltitudeReply { bds, .. } => {
// Invalidate data if marked as both BDS50 and BDS60
if let (Some(_), Some(_)) = (&bds.bds50, &bds.bds60) {
bds.bds50 = None;
bds.bds60 = None
}
if let Some(bds20) = &bds.bds20 {
if !bds20.callsign.contains("#") {
aircraft.cur.callsign =
Some(bds20.callsign.to_string());
}
}
if let Some(bds40) = &bds.bds40 {
aircraft.cur.selected_altitude =
bds40.selected_altitude_mcp;
}
if let Some(bds50) = &bds.bds50 {
aircraft.cur.roll = bds50.roll_angle;
aircraft.cur.track = bds50.track_angle;
aircraft.cur.groundspeed =
bds50.groundspeed.map(|x| x as f64);
aircraft.cur.tas = bds50.true_airspeed;
}
if let Some(bds60) = &bds.bds60 {
aircraft.cur.ias = bds60.indicated_airspeed;
aircraft.cur.mach = bds60.mach_number;
aircraft.cur.heading = bds60.magnetic_heading;
if bds60.inertial_vertical_velocity.is_some() {
aircraft.cur.vertical_rate =
bds60.inertial_vertical_velocity;
}
}
}
CommBIdentityReply { bds, .. } => {
// Invalidate data if marked as both BDS50 and BDS60
if let (Some(_), Some(_)) = (&bds.bds50, &bds.bds60) {
bds.bds50 = None;
bds.bds60 = None
}
if let Some(bds20) = &bds.bds20 {
if !bds20.callsign.contains("#") {
aircraft.cur.callsign =
Some(bds20.callsign.to_string());
}
}
if let Some(bds40) = &bds.bds40 {
aircraft.cur.selected_altitude =
bds40.selected_altitude_mcp;
}
if let Some(bds50) = &bds.bds50 {
aircraft.cur.roll = bds50.roll_angle;
aircraft.cur.track = bds50.track_angle;
aircraft.cur.groundspeed =
bds50.groundspeed.map(|x| x as f64);
aircraft.cur.tas = bds50.true_airspeed;
}
if let Some(bds60) = &bds.bds60 {
aircraft.cur.ias = bds60.indicated_airspeed;
aircraft.cur.mach = bds60.mach_number;
aircraft.cur.heading = bds60.magnetic_heading;
if bds60.inertial_vertical_velocity.is_some() {
aircraft.cur.vertical_rate =
bds60.inertial_vertical_velocity;
}
}
}
_ => {}
};
}
}
}
pub async fn store_history(
states: &Mutex<Jet1090>,
msg: TimedMessage,
aircraftdb: &BTreeMap<String, aircraftdb::Aircraft>,
) {
if let TimedMessage {
timestamp,
message: Some(message),
metadata,
decode_time,
..
} = msg
{
if let Some(icao24) = icao24(&message) {
let states = &mut states.lock().await.state_vectors;
let aircraft =
states
.entry(icao24.to_string())
.or_insert(StateVectors::new(
timestamp as u64,
icao24,
aircraftdb,
));
match message.df {
ExtendedSquitterADSB(_)
| ExtendedSquitterTisB { .. }
| CommBAltitudeReply { .. }
| CommBIdentityReply { .. } => {
aircraft.hist.push(TimedMessage {
timestamp,
frame: vec![],
message: Some(message),
metadata,
decode_time,
})
}
_ => {}
}
}
}
}