#!/usr/bin/env python3
# -*- coding: utf-8  -*-
#
#  reddiscparser.py
#
#  Copyright 2016 GOLDERWEB – Jonathan Golder <jonathan@golderweb.de>
#
#  This program is free software; you can redistribute it and/or modify
#  it under the terms of the GNU General Public License as published by
#  the Free Software Foundation; either version 2 of the License, or
#  (at your option) any later version.
#
#  This program is distributed in the hope that it will be useful,
#  but WITHOUT ANY WARRANTY; without even the implied warranty of
#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#  GNU General Public License for more details.
#
#  You should have received a copy of the GNU General Public License
#  along with this program; if not, write to the Free Software
#  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
#  MA 02110-1301, USA.
#
#
"""
Wrapper script to invoke all redundances bot tasks
"""

import os
import sys

import pywikibot
from pywikibot import pagegenerators

import jogobot


def main(*args):  # noqa (temp)
    """
    Process command line arguments and invoke bot.

    If args is an empty list, sys.argv is used.

    @param args: command line arguments
    @type args: list of unicode
    """

    # Process global arguments to determine desired site
    local_args = pywikibot.handle_args(args)

    # Get the jogobot-task_slug (basename of current file without ending)
    task_slug = os.path.basename(__file__)[:-len(".py")]

    # Before run, we need to check wether we are currently active or not
    try:
        # Will throw Exception if disabled/blocked
        # jogobot.is_active( task_slug )
        pass

    except jogobot.jogobot.Blocked:
        (type, value, traceback) = sys.exc_info()
        jogobot.output( "\03{lightpurple} %s (%s)" % (value, type ),
                        "CRITICAL" )

    except jogobot.jogobot.Disabled:
        (type, value, traceback) = sys.exc_info()
        jogobot.output( "\03{red} %s (%s)" % (value, type ),
                        "ERROR" )

    # Bot/Task is active
    else:

        # This factory is responsible for processing command line arguments
        # that are also used by other scripts and that determine on which pages
        # to work on.
        genFactory = pagegenerators.GeneratorFactory()

        # If always is True, bot won't ask for confirmation of edit (automode)
        # always = False

        # If force_reload is True, bot will always parse Countrylist regardless
        # if parsing is needed or not
        # force_reload = False

        # Subtask selects the specific bot to run
        # Default is reddiscparser
        subtask = None

        # kwargs are passed to selected bot as **kwargs
        kwargs = dict()

        # Parse command line arguments
        for arg in local_args:

            # Split args
            arg, sep, value = arg.partition(':')

            if arg.startswith("-always"):
                # always = True
                pass
            elif arg.startswith("-task"):
                subtask = value
            else:
                genFactory.handleArg(arg)

        # After parsing args we can select bot to run
        if not subtask or subtask == "discparser":
            # Default case: discparser
            subtask = "discparser"

            # Import related bot
            from bots.reddiscparser import DiscussionParserBot as Bot

            #
        else:
            jogobot.output( (
                "\03{{red}} Given subtask \"{subtask} \"" +
                "is not existing!" ).format( subtask=subtask ), "ERROR" )

        # Bot gets prepared genFactory as first param and possible kwargs dict
        # It has to threw an exception if something does not work properly
        try:
            # Init bot with genFactory and **kwargs
            bot = Bot( genFactory, **kwargs )

        except:
            # Catch Errors while initiation
            jogobot.output( (
                "\03{{red}} Error while trying to init " +
                "subtask \"{task_slug}-{subtask} \"!" ).
                format( task_slug=task_slug, subtask=subtask ), "ERROR" )
            raise
        else:
            # Init successfull
            jogobot.output( (
                "Subtask \"{task_slug}-{subtask}\" was" +
                "initiated successfully" ).
                format(task_slug=task_slug, subtask=subtask) )

        # Fire up Bot
        # Bot must have implemented a run()-method
        # It has to threw an exception if something does not work properly
        try:
            # Call run method on Bot
            bot.run()

        # Special event on AttributeError to catch missing run()-method
        except AttributeError:
            (type, value, traceback) = sys.exc_info()

            # Catch missing run()-method
            if "has no attribute 'run'" in value:
                jogobot.output( (
                    "\03{{red}} Error while trying to run " +
                    "subtask \"{task_slug}-{subtask} \": +"
                    "Run-method is missing! ").
                    format( task_slug=task_slug, subtask=subtask ), "ERROR" )

            # Pass through other AttributeError
            else:
                raise

        except:
            jogobot.output( (
                "\03{{red}} Error while trying to run " +
                "subtask \"{task_slug}-{subtask} \"!" ).
                format( task_slug=task_slug, subtask=subtask ), "ERROR" )
            raise

        else:
            # Run successfull
            jogobot.output( (
                "Subtask \"{task_slug}-{subtask}\" was finished successfully").
                format(task_slug=task_slug, subtask=subtask) )


if( __name__ == "__main__" ):
    main()