from iri_tweet.models import setup_database, Message, UserMessage, User

from iri_tweet.utils import (get_oauth_token, get_user_query, set_logging_options, 

    set_logging, parse_date, get_logger)

from optparse import OptionParser #@UnresolvedImport

from sqlalchemy import BigInteger

from sqlalchemy.schema import Table, Column

from sqlalchemy.sql import and_

import datetime

import re

import sys

import twitter

APPLICATION_NAME = "Tweet recorder user"

CONSUMER_KEY = "Vdr5ZcsjI1G3esTPI8yDg"

CONSUMER_SECRET = "LMhNrY99R6a7E0YbZZkRFpUZpX5EfB1qATbDk1sIVLs"

def get_options():

    parser = OptionParser()

    parser.add_option("-d", "--database", dest="database",

                      help="Input database", metavar="DATABASE")

    parser.add_option("-s", "--start-date", dest="start_date",

                      help="start date", metavar="START_DATE", default=None)

    parser.add_option("-e", "--end-date", dest="end_date",

                      help="end date", metavar="END_DATE")

    parser.add_option("-H", "--hashtag", dest="hashtag",

                      help="Hashtag", metavar="HASHTAG", default=[], action="append")                      

    parser.add_option("-x", "--exclude", dest="exclude",

                      help="file containing the id to exclude", metavar="EXCLUDE")

    parser.add_option("-D", "--duration", dest="duration", type="int",

                      help="Duration", metavar="DURATION", default=None)

    parser.add_option("-m", "--message", dest="message",

                      help="tweet", metavar="MESSAGE", default="")    

    parser.add_option("-u", "--user", dest="user",

                      help="user", metavar="USER")    

    parser.add_option("-w", "--password", dest="password",

                      help="password", metavar="PASSWORD")    

    parser.add_option("-t", dest="token_filename", metavar="TOKEN_FILENAME", default=".oauth_token",

                      help="Token file name")

    parser.add_option("-S", dest="simulate", metavar="SIMULATE", default=False, action="store_true", help="Simulate call to twitter. Do not change the database")

    parser.add_option("-f", dest="force", metavar="FORCE", default=False, action="store_true", help="force sending message to all user even if it has already been sent")

    set_logging_options(parser)

    return parser.parse_args()

if __name__ == "__main__":

    (options, args) = get_options()

    set_logging(options)

    get_logger().debug("OPTIONS : " + repr(options)) #@UndefinedVariable

    if not options.message or len(options.message) == 0:

        get_logger().warning("No message exiting")

        sys.exit()

    conn_str = options.database.strip()

    if not re.match("^\w+://.+", conn_str):

        conn_str = 'sqlite:///' + conn_str

    engine, metadata, Session = setup_database(conn_str, echo=((options.verbose-options.quiet)>0), create_all = False)        

    conn = None

    try :

        conn = engine.connect()  

        session = None      

        try:

            session = Session(bind=conn, autoflush=True, autocommit=True)

            tweet_exclude_table = Table("tweet_exclude", metadata, Column('id', BigInteger, primary_key=True), prefixes=['TEMPORARY'])

            metadata.create_all(bind=conn,tables=[tweet_exclude_table])

            start_date_str = options.start_date

            end_date_str = options.end_date

            duration = options.duration

            hashtags = options.hashtag

            start_date = None

            if start_date_str:

                start_date = parse_date(start_date_str) 

            end_date = None

            if end_date_str:

                end_date = parse_date(end_date_str)

            elif start_date and duration:

                end_date = start_date + datetime.timedelta(seconds=duration)

            base_message = options.message.decode(sys.getfilesystemencoding())

            #get or create message

            message_obj = session.query(Message).filter(Message.text == base_message).first()

            if not message_obj :

                message_obj = Message(text=base_message)

                session.add(message_obj) 

                session.flush()           

            query = get_user_query(session, start_date, end_date, hashtags, tweet_exclude_table)

            if not options.force:

                query = query.outerjoin(UserMessage, and_(User.id == UserMessage.user_id, UserMessage.message_id == message_obj.id)).filter(UserMessage.message_id == None)

            query_res = query.all()

            acess_token_key, access_token_secret = get_oauth_token(options.token_filename, application_name=APPLICATION_NAME, consumer_key=CONSUMER_KEY, consumer_secret=CONSUMER_SECRET)

            t = twitter.Twitter(auth=twitter.OAuth(acess_token_key, access_token_secret, CONSUMER_KEY, CONSUMER_SECRET))

            for user in query_res:

                screen_name = user.screen_name

                message = u"@%s: %s" % (screen_name, base_message)

                get_logger().debug("new status : " + message) #@UndefinedVariable

                if not options.simulate:

                    t.statuses.update(status=message)

                    user_message = UserMessage(user_id=user.id, message_id=message_obj.id)

                    session.add(user_message)

                    session.flush()

        finally:

            # if message created and simulate, do not

            if session:  

                session.close()

    finally:

        if conn:

            conn.close()