#!/usr/bin/env python
# -*- coding: utf-8 -*-
#
#  teamstation.py
#
#  Copyright 2018 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.
#
#
"""
Bot to correct errors in usage of
[Template Team-Station](https://de.wikipedia.org/wiki/Vorlage:Team-Station).
"""

import os
import locale
import re

import pywikibot
from pywikibot.bot import CurrentPageBot

import mwparserfromhell as mwparser

import jogobot


class TeamstationBot( CurrentPageBot ):  # sets 'current_page' on each treat()
    """
    Bot to correct errors in usage of [Template Team-Station]
    (https://de.wikipedia.org/wiki/Vorlage:Team-Station).
    """

    wrong_dash_search = r"hastemplate:Team-Station insource:/Team-Station *\| *[12][0-9]{3} *(‐|-|‑|‒|—|―|˗)/"
    wrong_dash_summary = "Bot: ([[Benutzer:JogoBot/Teamstation|teamstation]]) Korrigiere falschen [[Halbgeviertstrich#Bis-Strich|Bis-Strich]]"

    def __init__( self, genFactory, **kwargs ):
        """
        Constructor

        Parameters:
            @param  genFactory  GenFactory with parsed pagegenerator args to
                                build generator
            @type  genFactory  pagegenerators.GeneratorFactory
            @param  **kwargs  Additional args
            @type  iterable
        """

        # Copy needed args
        self.genFactory = genFactory

        # Build generator with genFactory
        self.build_generator()

        # Run super class init with builded generator
        super( TeamstationBot, self ).__init__(generator=self.gen)

    def build_generator( self ):
        """
        Builds generator
        """

        # Search articles with wrong dash symbols used in time span
        self.genFactory.gens.append(
            pywikibot.pagegenerators.SearchPageGenerator(
                type(self).wrong_dash_search, namespaces=[0]
            )
        )

        # Use this to create the generator the bot should work on
        self.gen = self.genFactory.getCombinedGenerator()

    def treat_page( self ):
        """
        Handles work on current page
        """

        # Parse article text with mwparser
        self.current_page.wikicode = mwparser.parse( self.current_page.text)

        # Normalize param 1 (jahre)
        self.normalize_jahre()

        # Convert wikicode back to string to save
        self.new_text = str( self.current_page.wikicode )

        # Save
        self.put_current(self.new_text, summary=type(self).wrong_dash_summary)

    def normalize_jahre(self):
        """
        Replace wrong dash symbols and do some space normalisations in param 1
        (jahre) of template Team-Station
        """

        # Iterate occurences of template Team-Station
        for occ in self.current_page.wikicode.ifilter_templates(
                matches=r"^\{\{Team-Station" ):

            # Short circuit wrong templates
            if not occ.name == "Team-Station":
                continue

            # Make sure param 1 exists
            if occ.has(1):

                # Get value of param 1
                jahre = occ.get(1);

                # Normalize rarely used "bis 2000" notation
                if "bis" in jahre.value:
                    jahre.value.replace("bis", "{{0|0000}}\u2013")

                # Get parts of value
                mo = re.search(r"\s*(\{\{0\|0000\}\}|(?:1|2)\d{3})\s*(–|‐|-|‑|‒|—|―|˗)?\s*((?:1|2)\d{3})?",str(jahre.value))

                # Short circuit if no years found
                if not mo:
                    continue

                jahre_n = list()

                # Reconstruct normalized value with correct enDash
                if mo.group(1):
                    jahre_n.append(mo.group(1))
                else:
                    jahre_n.append("    ")

                if mo.group(2):
                    jahre_n.append("\u2013")
                else:
                    jahre_n.append(" ")

                if mo.group(3):
                    jahre_n.append(mo.group(3))
                else:
                    jahre_n.append("    ")

                # Overwrite old param value with normalized value
                occ.add(1,"".join(jahre_n))

def main(*args):
    """
    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
    """

    # Make sure locale is set to 'de_DE.UTF-8' to prevent problems
    # with wrong month abreviations in strptime
    locale.setlocale(locale.LC_ALL, 'de_DE.UTF-8')

    # 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")]

    # Actually not needed since we only run semi-automaticall
    # Before run, we need to check wether we are currently active or not
    #~ if not jogobot.bot.active( task_slug ):
        #~ return

    # Parse local Args to get information about subtask
    ( subtask, genFactory, subtask_args ) = jogobot.bot.parse_local_args(
        local_args, None )

    # Init Bot
    bot = jogobot.bot.init_bot( task_slug, None, TeamstationBot, genFactory)

    # Run bot
    jogobot.bot.run_bot( task_slug, None, bot )


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