shipstats.py

# This file is part of Merlin.
# Merlin is the Copyright (C)2008,2009,2010 of Robin K. Hansen, Elliot Rosemarine, Andreas Jacobsen.

# Individual portions may be copyright by individual contributors, and
# are included in this collective work with permission of the copyright
# owners.

# 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 St, Fifth Floor, Boston, MA 02110-1301 USA
 
import re
import sys
import urllib2
from sqlalchemy.sql import text
from Core.config import Config
from Core.paconf import PA
from Core.db import true, false, session
from Core.maps import Ship

useragent = "Merlin (Python-urllib/%s); Alliance/%s; BotNick/%s; Admin/%s" % (urllib2.__version__, Config.get("Alliance", "name"), 
                                                                              Config.get("Connection", "nick"), Config.items("Admins")[0][0])

regex = r'^<tr class="('
races = []
for race in PA.options("races"):
    races.append(PA.get(race, "name"))
regex += "|".join(races)
regex += ')">.+?>([^<]+)</td>' # race & name
regex += r'<td>(\w+)</td>' # class
regex += r'(?:<td>(\w\w|\-)</td>)?'*3 # t1,t2,t3
regex += r'<td>(\w+)</td>' # type
regex += r'.+?(\d+|\-)</td>'*8 # some numbers
regex += r'.+?</tr>$' # end of the line
sre = re.compile(regex,re.I|re.M)

mapping = { "Fi": "Fighter",
            "Co": "Corvette",
            "Fr": "Frigate",
            "De": "Destroyer",
            "Cr": "Cruiser",
            "Bs": "Battleship",
            "Ro": "Roids",
            "St": "Struct",
            "Ter": "Terran",
            "Etd": "Eitraides",
            "Cat": "Cathaar",
            "Zik": "Zikonian",
            "Xan": "Xandathrii"}

keys = ['race', 'name', 'class_', 't1', 't2', 't3', 'type', 'init',
        'guns', 'armor', 'damage', 'empres', 'metal', 'crystal', 'eonium']

def main(url = Config.get("URL", "ships"), debug=False):
    req = urllib2.Request(url)
    req.add_header('User-Agent', useragent)
    stats = urllib2.urlopen(req).read()
    session.execute(Ship.__table__.delete())
    if Config.get("DB", "dbms") == "mysql":
        session.execute(text("ALTER TABLE ships AUTO_INCREMENT=1;"))
    else:
        session.execute(text("SELECT setval('ships_id_seq', 1, :false);"))
    
    for line in sre.findall(stats):
        ship = Ship()
        line = list(line)
        for index, key in enumerate(keys):
            if line[index] in mapping:
                line[index] = mapping[line[index]]
            elif line[index].isdigit():
                line[index] = int(line[index])
            if line[index] not in ('-', '',):
                setattr(ship,key,line[index])
        ship.total_cost = ship.metal + ship.crystal + ship.eonium
        if debug: print "%12s%12s%12s%12s" % (ship.name, ship.class_, ship.race, ship.type,)
        
        session.add(ship)
    
    session.commit()
    session.close()

if __name__ == '__main__':
    if len(sys.argv) > 1:
        sys.exit(main(url=sys.argv[1],debug=True))
    else:
        sys.exit(main(debug=True))