"""
dr.botzo - a pluggable IRC bot written in Python
Copyright (C) 2010  Brian S. Stephan

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 3 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, see <http://www.gnu.org/licenses/>.
"""

from ConfigParser import ConfigParser, NoSectionError, NoOptionError
import logging
import logging.config
import os
import re
import sys
import inspect
import sqlite3

import DrBotIRC
from extlib import irclib

moduleList = [ "Countdown", "Dice", "IrcAdmin", "GoogleTranslate", "Seen", "FactFile" ]
modObjs = []

config_file = 'dr.botzo.cfg'
# check argv
if len(sys.argv) == 2:
    config_file = sys.argv[1]

# read config file

config = ConfigParser({'debug': 'false'})
config.read(os.path.expanduser(config_file))

# load necessary options
try:
    # load connection info
    botserver   = config.get('dr.botzo', 'server')
    botport     = config.getint('dr.botzo', 'port')
    botnick     = config.get('dr.botzo', 'nick')
    botpass     = config.get('dr.botzo', 'pass')
    botuser     = config.get('dr.botzo', 'user')
    botircname  = config.get('dr.botzo', 'name')
except NoSectionError as e:
    sys.exit("Aborted due to error with necessary configuration: " + str(e))
except NoOptionError as e:
    sys.exit("Aborted due to error with necessary configuration: " + str(e))

# load additional options
irclib.DEBUG = config.getboolean('dr.botzo', 'debug')

logging.config.fileConfig('logging.cfg')
log = logging.getLogger('dr.botzo')

try:
    # make sure we can initialize the database, if such a thing is
    # called for in the config file
    dbfile = config.get('dr.botzo', 'database')
    conn = sqlite3.connect(dbfile, isolation_level=None)
    try:
        query = """
        SELECT COUNT(*)
        FROM sqlite_master
        WHERE type = 'table' AND name = 'drbotzo_modules'
        """
        row = conn.execute(query).fetchone()
        if row[0] == 0:
            # need to create the drbotzo_modules table
            query = """
                CREATE TABLE drbotzo_modules (
                    module TEXT PRIMARY KEY,
                    version INTEGER
                )
            """
            conn.execute(query)
            conn.commit()
    finally: conn.close()
except NoOptionError: pass # if the config file has no db property, assume that
except NoSectionError: pass # the database doesn't need to exist

# start up the IRC bot

# create IRC and server objects and connect
irc = DrBotIRC.DrBotIRC(config)
server = irc.server().connect(botserver, botport, botnick, botpass, botuser, botircname)

# load features
try:
    cfgmodlist = config.get('dr.botzo', 'module_list')

    mods = cfgmodlist.split(',')
    for mod in mods:
        irc.load_module(mod)
except NoSectionError as e:
    log.error("You seem to be missing a modules config section, which you probably wanted.")
except NoOptionError as e:
    log.error("You seem to be missing a modlist config option, which you probably wanted.")

# loop forever
irc.process_forever()

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