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//
// ADSBRunner.swift
// LearnMapKit
//
// Created by Jacky Jack on 28/06/2024.
//
import Foundation
import Collections
struct ADSBLocation {
let address: Int
let lat: Double
let long: Double
//let alt: Int
}
struct ADSBAltitude {
let address: Int
let altitude: Int
}
struct ADSBICAOname {
let address: Int
let ICAOname: String
}
enum DataStreamType {
case EMPTY
case ADSB_ICAO
case ADSB_LOCATION
case ADSB_ALTITUDE
}
//get stream of decoded data, to tagged stream so all can be processed in sequence
class ADSBDataQueue {
var icaoQueue: Deque<ADSBICAOname> = []
var altQueue: Deque<ADSBAltitude> = []
var locQueue: Deque<ADSBLocation> = []
var tagQueue: Deque<DataStreamType> = []
func getNextTag() -> DataStreamType {
if tagQueue.count < 0 {
return DataStreamType.EMPTY
}
return tagQueue[tagQueue.count-1]
}
func addIcaoName(_ address: Int, _ icaoname: String) {
tagQueue.append(DataStreamType.ADSB_ICAO)
icaoQueue.append(ADSBICAOname(address: address, ICAOname: icaoname))
}
func addAltitude(_ address: Int, _ altitude: Int) {
tagQueue.append(DataStreamType.ADSB_ALTITUDE)
altQueue.append(ADSBAltitude(address: address, altitude: altitude))
}
func addLocation(_ address: Int, _ lat: Double, _ long: Double) {
tagQueue.append(DataStreamType.ADSB_LOCATION)
locQueue.append(ADSBLocation(address: address, lat: lat, long: long))
}
func getIcaoName() -> ADSBICAOname {
if tagQueue.count < 1 {
print("ADSB tag Queue is empry")
return ADSBICAOname(address:0,ICAOname: "")
}
let tag = tagQueue[tagQueue.count-1]
if tag != DataStreamType.ADSB_ICAO {
print("ADSB Queue empty")
return ADSBICAOname(address:0,ICAOname: "")
}
tagQueue.removeLast()
return icaoQueue.popLast()!
}
func getAltitude() -> ADSBAltitude {
if tagQueue.count < 1 {
print("ADSB tag Queue is empry")
return ADSBAltitude(address:0,altitude:0)
}
let tag = tagQueue[tagQueue.count-1]
if tag != DataStreamType.ADSB_ALTITUDE {
print("ADSB Queue empty")
return ADSBAltitude(address:0,altitude:0)
}
tagQueue.removeLast()
return altQueue.popLast()!
}
func getLocation() -> ADSBLocation {
if tagQueue.count < 1 {
print("ADSB tag Queue is empry")
return ADSBLocation(address:0,lat:0.0,long:0.0)
}
let tag = tagQueue[tagQueue.count-1]
if tag != DataStreamType.ADSB_LOCATION {
print("ADSB Queue empty")
return ADSBLocation(address:0,lat:0.0,long:0.0)
}
tagQueue.removeLast()
return locQueue.popLast()!
}
func haveNum(_ num: Int) -> Bool {
if (tagQueue.count > num) {
return true
}
return false
}
}
class ADSBFileRunner {
var filename: URL
//track all airplanes
var tracker = AirPlaneTracker()
var adsb_source: String = ""
var adsb_tag_stream = ADSBDataQueue()
init(filename:String) {
self.filename = URL(fileURLWithPath:filename)
}
func openFile() {
print("File location [\(filename.absoluteString)]")
//check if file excists
if (checkIfFileExists(filename.path) == false) {
print("Supplied path \(filename.path) doesnt exists")
exit(1)
}
}
func readFile() {
//load the file with adsb data
do {
adsb_source = try String(contentsOfFile: filename.path)
print("Loaded \(adsb_source.count) bytes")
} catch {
print("Couldn't load text from a file \(filename.path)")
exit(1)
}
print("If there anything new in file")
}
func decode() {
for line in self.adsb_source.components(separatedBy: .newlines) {
var found=false
do {
if let tokenMatch = try matchADSBLong.prefixMatch(in: line) {
//print("\(String(tokenMatch.output))")
found = true
let str = String(tokenMatch.output)
let startIndex = str.index(str.startIndex, offsetBy: 1)
let endIndex = str.index(str.endIndex, offsetBy: -2)
let decoder = Decoder(String(str[startIndex...endIndex]))
if decoder.DataFormat == 17 {
if let d17 = decoder.getDataFormat17() {
if (d17.TypeCode == 4) {
if let indentification = d17.messageIdentification {
tracker.addDF17Indentification(d17.AddressAnnounced, indentification.ICAOName)
adsb_tag_stream.addIcaoName(d17.AddressAnnounced, tracker.getICAOname(d17.AddressAnnounced)!)
}
} else if (d17.TypeCode >= 9 && d17.TypeCode <= 18) {
if let airbornposition = d17.messageAirbornPositon {
tracker.addDF17AirBornPosition(
d17.AddressAnnounced,
airbornposition.Latitude,
airbornposition.Longitude,
airbornposition.Altitude,
airbornposition.CPRFormat == 0
)
if let position = tracker.getPosition(d17.AddressAnnounced) {
print("position: \(position)")
adsb_tag_stream.addAltitude(d17.AddressAnnounced, tracker.getAltitude(d17.AddressAnnounced)!)
let location = tracker.getPosition(d17.AddressAnnounced)!
adsb_tag_stream.addLocation(d17.AddressAnnounced, location.0, location.1)
}
}
}
}
}
};
} catch {
print("Error")
}
if (found == false) {
print("Unknown adsb data line \(line)")
}
}
//try to free the string after decoded
//adsb_source = ""
}
}
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