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//
// main.swift
// ADSBDecoder
//
// Created by Jacky Jack on 28/05/2024.
//
import Foundation
import ArgumentParser
import RegexBuilder
//return true if file excists
func checkIfFileExists(_ fname: String) -> Bool {
let fm = FileManager.default
if fm.fileExists(atPath: fname) {
return true
}
return false
}
//get current run directory
func getCurrentDirPath() -> String {
return Process().currentDirectoryPath
}
struct CommandLineArgs: ParsableCommand {
@Option(name: .shortAndLong) var inputfile: String
@Flag(name: .shortAndLong) var debug:Bool = false
@Flag(name: .shortAndLong) var version:Bool = false
@Flag(name: .shortAndLong) var show_stats:Bool = false
}
let args = CommandLineArgs.parseOrExit()
let fileUrl = URL(fileURLWithPath:args.inputfile)
print("File location [\(fileUrl.absoluteString)]")
//check if file excists
if (checkIfFileExists(fileUrl.path) == false) {
print("Supplied path \(fileUrl.path) doesnt exists")
exit(1)
}
//load the file with adsb data
var adsb_source = ""
do {
adsb_source = try String(contentsOfFile: fileUrl.path)
print("Loaded \(adsb_source.count) bytes")
} catch {
print("Couldn't load text from a file \(fileUrl.path)")
exit(1)
}
let matchADSBLong = Regex {
Anchor.startOfLine
"*"
Repeat(
CharacterClass(
("a"..."f"),
("0"..."9")
)
,count:28)
";"
}
let matchADSBShort = Regex {
Anchor.startOfLine
"*"
Repeat(
CharacterClass(
("a"..."f"),
("0"..."9")
)
,count:14)
";"
}
//gather stats
var q_df = QueryDF()
var q_dftc = QueryDF17TC()
//parse line by line
var cnt=0
for line in adsb_source.components(separatedBy: .newlines) {
var found=false
//print("\(cnt) \(line)")
//cnt += 1
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() {
//print(d17)
q_dftc.addTC(d17.TypeCode)
}
} else {
}
q_df.addDF(decoder.DataFormat)
};
if let tokenMatch = try matchADSBShort.prefixMatch(in: line) {
print("\(tokenMatch.output)")
found = true
};
if (found == false) {
print("Unknown adsb data line \(line)")
}
}
if args.show_stats {
print("----STAT----")
//q_df.showStat()
print(q_df)
print(q_dftc)
}
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