openwebrx-clone/owrx/js8.py

from .wsjt import WsjtChopper
from .parser import Parser
import re
from js8py import Js8
from js8py.frames import Js8FrameHeartbeat
from owrx.map import Map, LocatorLocation
from owrx.pskreporter import PskReporter

import logging

logger = logging.getLogger(__name__)


class Js8Chopper(WsjtChopper):
    def getInterval(self):
        return 15

    def getFileTimestampFormat(self):
        return "%y%m%d_%H%M%S"

    def decoder_commandline(self, file):
        return ["js8", "--js8", "-d", str(self.decoding_depth("js8")), file]


class Js8Parser(Parser):
    decoderRegex = re.compile(" ?<Decode(Started|Debug|Finished)>")

    def parse(self, raw):
        try:
            freq, raw_msg = raw
            self.setDialFrequency(freq)
            msg = raw_msg.decode().rstrip()
            if Js8Parser.decoderRegex.match(msg):
                return
            if msg.startswith(" EOF on input file"):
                return

            logger.debug(msg)

            frame = Js8().parse_message(msg)
            self.handler.write_js8_message(frame, self.dial_freq)
            logger.debug(frame)

            if isinstance(frame, Js8FrameHeartbeat):
                Map.getSharedInstance().updateLocation(
                    frame.callsign, LocatorLocation(frame.grid), "JS8", self.band
                )
                PskReporter.getSharedInstance().spot({
                    "callsign": frame.callsign,
                    "mode": "JS8",
                    "locator": frame.grid,
                    "freq": self.dial_freq + frame.freq,
                    "db": frame.db,
                    "timestamp": frame.timestamp,
                    "msg": str(frame)
                })

        except Exception:
            logger.exception("error while parsing js8 message")