#!/usr/bin/env python
#
#   Horus Telemetry GUI - Configuration
#
#   Mark Jessop <vk5qi@rfhead.net>
#

import logging
import os
from ruamel.yaml import YAML
from . import __version__


default_config = {
    "audio_device": "None",
    "modem": "Horus Binary v1 (Legacy)",
    "habitat_upload_enabled": True,
    "habitat_call": "N0CALL",
    "habitat_lat": 0.0,
    "habitat_lon": 0.0,
    "habitat_antenna": "",
    "habitat_radio": "Horus-GUI " + __version__,
    "horus_udp_enabled": True,
    "horus_udp_port": 55672,
}


def init_config(filename="config.yml"):
    """ Initialise the configuration file if it does not exist """
    global default_config
    logging.info(f"Writing configuration file {filename}")

    yaml = YAML()

    try:
        with open(filename, "w") as _outfile:
            yaml.dump(default_config, _outfile)
    except Exception as e:
        logging.error(f"Could not write configuration file - {str(e)}")


def read_config(widgets, filename="config.yml"):
    """ Read in a configuration yml file, and set up all GUI widgets """
    if not os.path.exists(filename):
        init_config(filename)

    yaml = YAML()

    _config = None

    try:
        with open(filename, "r") as _infile:
            _config = yaml.load(_infile)
    except Exception as e:
        logging.error(f"Error reading config file - {str(e)}")

    if _config == None:
        return

    if widgets:
        # Habitat Settings
        widgets["habitatUploadSelector"].setChecked(_config["habitat_upload_enabled"])
        widgets["userCallEntry"].setText(str(_config["habitat_call"]))
        widgets["userLatEntry"].setText(str(_config["habitat_lat"]))
        widgets["userLonEntry"].setText(str(_config["habitat_lon"]))
        widgets["userAntennaEntry"].setText(str(_config["habitat_antenna"]))
        widgets["userRadioEntry"].setText(str(_config["habitat_radio"]))

        # Horus Settings
        widgets["horusUploadSelector"].setChecked(_config["horus_udp_enabled"])
        widgets["horusUDPEntry"].setText(str(_config["horus_udp_port"]))

        # Try and set the audio device.
        # If the audio device is not in the available list of devices, this will fail silently.
        widgets["audioDeviceSelector"].setCurrentText(_config["audio_device"])
        # Try and set the modem. If the modem is not valid, this will fail silently.
        widgets["horusModemSelector"].setCurrentText(_config["modem"])


def save_config(widgets, filename="config.yml"):
    """ Write out settings to a config file """
    global default_config

    if widgets:
        default_config["habitat_upload_enabled"] = widgets[
            "habitatUploadSelector"
        ].isChecked()
        default_config["habitat_call"] = widgets["userCallEntry"].text()
        default_config["habitat_lat"] = float(widgets["userLatEntry"].text())
        default_config["habitat_lon"] = float(widgets["userLonEntry"].text())
        default_config["habitat_antenna"] = widgets["userAntennaEntry"].text()
        default_config["habitat_radio"] = widgets["userRadioEntry"].text()
        default_config["horus_udp_enabled"] = widgets["horusUploadSelector"].isChecked()
        default_config["horus_udp_port"] = int(widgets["horusUDPEntry"].text())
        default_config["audio_device"] = widgets["audioDeviceSelector"].currentText()
        default_config["modem"] = widgets["horusModemSelector"].currentText()

        # Write out to config file
        init_config(filename)


if __name__ == "__main__":
    read_config(None)