#!/usr/bin/env python
#
# 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.
#
# Copyright (c) 2015 Michal Cihar <michal@cihar.com>
#
"""Generates gsmnet databse from wikipedia"""
import urllib
import re
from unidecode import unidecode

URL = 'https://en.wikipedia.org/w/index.php?title=Mobile_country_code&action=raw'
TABLE_RE = re.compile(
    r'^\|[ \t]*(?P<mcc>[0-9]+)[ \t]*\|\|[ \t]*(?P<mnc>[0-9]+)?[ \t]*\|\|'
)
WIKILINK = re.compile(r'\[\[([^|\]]+\|)?(?P<text>[^\]]+)\]\]')
URLLINK = re.compile(r'\[([^ \]]+ )(?P<text>[^\]]+)\]')


def parse_line(line):
    line = line.strip('|\r\n\t ')
    parts = line.split('||')
    return {
        'mcc': parts[0].strip(),
        'mnc': parts[1].strip(),
        'brand': parts[2].strip(),
        'operator': parts[3].strip(),
    }


def print_out(result):
    for code, name in sorted(result):
        print '\t{{"{0}", "{1}"}},'.format(
            code, 
            unidecode(name.decode('utf-8')).replace('&amp;', '&')
        )
    

def print_countries(data):
    country = None
    result = []
    for line in data.splitlines():
        if line.startswith('==== [['):
            country = line[7:].split(']')[0].split('|')[-1]
            current = set()
            continue
        elif 'International operators' in line:
            country = 'International operators'
            current = set()
            continue
        if not country:
            continue
        if TABLE_RE.match(line) is None:
            continue
        match = parse_line(line)
        if match['mcc'] not in current:
            current.add(match['mcc'])
            result.append((match['mcc'], country))

    print_out(result)


def print_networks(data):
    result = []
    for line in data.splitlines():
        if TABLE_RE.match(line) is None:
            continue
        match = parse_line(line)
        if not match['mnc']:
            continue
        if match['brand']:
            brand = match['brand']
        elif match['operator']:
            brand = match['operator']
        else:
            brand = ''
        if brand == "''Unassigned''":
            brand = ''

        brand = WIKILINK.sub(r'\g<text>', brand)
        brand = URLLINK.sub(r'\g<text>', brand)
        brand = brand.replace('<sub>2</sub>', '2')

        result.append((
            '{0} {1}'.format(match['mcc'], match['mnc']),
            brand
        ))

    print_out(result)


def main():
    handle = urllib.urlopen(URL)
    data = handle.read()
    print_countries(data)
    print
    print '-' * 80
    print
    print_networks(data)


if __name__ == "__main__":
    main()
