#!/usr/bin/python
# -*- coding: utf-8 -*-
"""
    ____  ____  ______       __      __       __       _____
   / __ )/ __ \/ ___/ |     / /___ _/ /______/ /_     |__  /
  / __  / / / /\__ \| | /| / / __ `/ __/ ___/ __ \     /_ <
 / /_/ / /_/ /___/ /| |/ |/ / /_/ / /_/ /__/ / / /   ___/ /
/_____/\____//____/ |__/|__/\__,_/\__/\___/_/ /_/   /____/
                German BOS Information Script
                     by Bastian Schroll

@file:        bw_client.py
@date:        09.12.2017
@author:      Bastian Schroll
@description: BOSWatch client application
"""
# pylint: disable=wrong-import-position
# pylint: disable=wrong-import-order
from boswatch.utils import paths

if not paths.makeDirIfNotExist(paths.LOG_PATH):
    print("cannot find/create log directory: %s", paths.LOG_PATH)
    exit(1)

import logging.config
logging.config.fileConfig(paths.CONFIG_PATH + "logger_client.ini")
logging.debug("")
logging.debug("######################## NEW LOG ############################")
logging.debug("BOSWatch client has started ...")


logging.debug("Import python modules")
import argparse
logging.debug("- argparse")
import time
logging.debug("- time")

logging.debug("Import BOSWatch modules")
from boswatch.configYaml import ConfigYAML
from boswatch.network.client import TCPClient
from boswatch.network.broadcast import BroadcastClient
from boswatch.decoder.decoder import Decoder
from boswatch.utils import header
from boswatch.utils import misc


header.logoToLog()
header.infoToLog()

logging.debug("parse args")
# With -h or --help you get the Args help
parser = argparse.ArgumentParser(prog="bw_client.py",
                                 description="""BOSWatch is a Python Script to receive and
                                 decode german BOS information with rtl_fm and multimon-NG""",
                                 epilog="""More options you can find in the extern client.ini
                                 file in the folder /config""")
parser.add_argument("-c", "--config", help="Name to configuration File", required=True)
args = parser.parse_args()

bwConfig = ConfigYAML()
if not bwConfig.loadConfigFile(paths.CONFIG_PATH + args.config):
    logging.error("cannot load config file")
    exit(1)


# ############################# begin client system
try:

    ip = bwConfig.get("server", "ip", default="127.0.0.1")
    port = bwConfig.get("server", "port", default="8080")

    if bwConfig.get("client", "useBroadcast", default=False):
        broadcastClient = BroadcastClient()
        if broadcastClient.getConnInfo():
            ip = broadcastClient.serverIP
            port = broadcastClient.serverPort

    bwClient = TCPClient()
    if bwClient.connect(ip, port):

        testFile = open(paths.TEST_PATH + "testdata.list", "r")

        while 1:

            for testData in testFile:

                if (len(testData.rstrip(' \t\n\r')) == 0) or ("#" in testData[0]):
                    continue

                logging.debug("Test: %s", testData)
                bwPacket = Decoder.decode(testData)

                if bwPacket:
                    bwPacket.printInfo()
                    misc.addClientDataToPacket(bwPacket, bwConfig)
                    bwClient.transmit(str(bwPacket))

                    # todo should we do this in an thread, to not block receiving ??? but then we should use transmit() and receive() with Lock()
                    failedTransmits = 0
                    while not bwClient.receive() == "[ack]":  # wait for ack or timeout
                        if failedTransmits >= 3:
                            logging.error("cannot transmit after 3 retires")
                            break
                        failedTransmits += 1
                        logging.warning("attempt %d to resend packet", failedTransmits)
                        bwClient.transmit(str(bwPacket))  # try to resend

                    logging.debug("ack ok")

            bwClient.disconnect()
            break
# test for server ####################################

except KeyboardInterrupt:  # pragma: no cover
    logging.warning("Keyboard interrupt")
except SystemExit:  # pragma: no cover
    logging.error("BOSWatch interrupted by an error")
except:  # pragma: no cover
    logging.exception("BOSWatch interrupted by an error")
finally:  # pragma: no cover
    logging.debug("BOSWatch has ended ...")