from __future__ import (
    division, absolute_import, print_function, unicode_literals
)

import os
import logging
import sys
import traceback

from six import ensure_text
from kodi_six import xbmc, xbmcaddon

from .utils import translate_path

__addon__ = xbmcaddon.Addon(id='plugin.video.jellycon')
__pluginpath__ = translate_path(__addon__.getAddonInfo('path'))


def getLogger(name=None):
    if name is None:
        return __LOGGER

    return __LOGGER.getChild(name)


class LogHandler(logging.StreamHandler):

    def __init__(self):

        logging.StreamHandler.__init__(self)
        self.setFormatter(MyFormatter())

        self.sensitive = {'Token': [], 'Server': []}

        settings = xbmcaddon.Addon()
        self.server = settings.getSetting('server_address')
        self.debug = settings.getSetting('log_debug')

    def emit(self, record):

        if self._get_log_level(record.levelno):
            string = self.format(record)

            # Hide server URL in logs
            string = string.replace(
                self.server or "{server}", "{jellyfin-server}"
            )

            py_version = sys.version_info.major
            # Log level notation changed in Kodi v19
            if py_version > 2:
                log_level = xbmc.LOGINFO
            else:
                log_level = xbmc.LOGNOTICE
            xbmc.log(string, level=log_level)

    def _get_log_level(self, level):

        levels = {
            logging.ERROR: 0,
            logging.WARNING: 0,
            logging.INFO: 1,
            logging.DEBUG: 2
        }
        if self.debug == 'true':
            log_level = 2
        else:
            log_level = 1

        return log_level >= levels[level]


class MyFormatter(logging.Formatter):

    def __init__(
        self,
        fmt='%(name)s -> %(levelname)s::%(relpath)s:%(lineno)s %(message)s'
    ):
        logging.Formatter.__init__(self, fmt)

    def format(self, record):
        if record.pathname:
            record.pathname = ensure_text(
                record.pathname, get_filesystem_encoding()
            )

        self._gen_rel_path(record)

        # Call the original formatter class to do the grunt work
        result = logging.Formatter.format(self, record)

        return result

    def formatException(self, exc_info):
        _pluginpath_real = os.path.realpath(__pluginpath__)
        res = []

        for o in traceback.format_exception(*exc_info):
            o = ensure_text(o, get_filesystem_encoding())

            if o.startswith('  File "'):
                """
                If this split can't handle your file names,
                you should seriously consider renaming your files.
                """
                fn = o.split('  File "', 2)[1].split('", line ', 1)[0]
                rfn = os.path.realpath(fn)
                if rfn.startswith(_pluginpath_real):
                    o = o.replace(fn, os.path.relpath(rfn, _pluginpath_real))

            res.append(o)

        return ''.join(res)

    def _gen_rel_path(self, record):
        if record.pathname:
            record.relpath = os.path.relpath(record.pathname, __pluginpath__)


def get_filesystem_encoding():
    enc = sys.getfilesystemencoding()

    if not enc:
        enc = sys.getdefaultencoding()

    if not enc or enc == 'ascii':
        enc = 'utf-8'

    return enc


__LOGGER = logging.getLogger('JELLYFIN')
for handler in __LOGGER.handlers:
    __LOGGER.removeHandler(handler)

__LOGGER.addHandler(LogHandler())
__LOGGER.setLevel(logging.DEBUG)