"""
TBD
"""

__author__ = "Lukas Mahler"
__version__ = "0.0.0"
__date__ = "13.10.2021"
__email__ = "m@hler.eu"
__status__ = "Development"


# Default
import sys
import shutil
import os.path
import logging
import time
from datetime import timedelta
from logging.handlers import RotatingFileHandler

# Custom
import toml


def unhandledException(exc_type, exc_value, exc_traceback):
    """
    src = https://stackoverflow.com/a/16993115/5593051
    """

    if issubclass(exc_type, KeyboardInterrupt):
        sys.__excepthook__(exc_type, exc_value, exc_traceback)
        return

    log.critical("Uncaught exception", exc_info=(exc_type, exc_value, exc_traceback))


def getConf(fname):
    """

    """
    if fname.endswith(".toml"):
        if os.path.isfile(fname):
            try:
                config = toml.load(fname)
                checkConf(config)
                return config
            except ValueError as e:
                log.critical(f"The provided '.toml' is probably invalid, returned error:\n{e}")
                exit(1)
        else:
            log.critical(f"Couldn't locate the '.toml' file [{fname}].")
            log.info("Creating a new '.toml' file from template, please edit and restart.")
            shutil.copy("src/template.toml", fname)
            exit(1)
    else:
        log.critical(f"The provided config file [{fname}] is not a '.toml' file.")
        log.info("Creating a new '.toml' file from template, please edit and restart.")
        shutil.copy("src/template.toml", "prod.toml")
        exit(1)


def getRuntime(started):
    """

    """
    elapsed = time.time() - started
    runtime = str(timedelta(seconds=elapsed)).split(".")[0]  # ignore Microseconds

    return runtime


def checkConf(config):
    """
    TODO check if keys exist
    """
    pass


def setupLogger(logpath, lvl="DEBUG"):
    """
    Create a rotating log in a log folder
    """

    global log  # Needed to log exceptions in src\util
    log = logging.getLogger()
    if not os.path.exists(logpath):
        os.makedirs(logpath)
    handler = RotatingFileHandler(logpath + r"/myTS3.log", encoding='utf-8', maxBytes=1*1024*1024, backupCount=10)
    logformat = logging.Formatter("%(asctime)s %(levelname)8s %(message)s", "%Y-%m-%d %H:%M:%S")
    handler.setFormatter(logformat)
    log.addHandler(handler)
    log.setLevel(lvl)

    return log


if __name__ == "__main__":
    exit()