import os
import sys
import transaction

from pyramid.paster import (
    get_appsettings,
    setup_logging,
    )

from pyramid.scripts.common import parse_vars

from ..models.meta import Base
from ..models import (
    get_engine,
    get_session_factory,
    get_tm_session,
    )
from forbes.models import Billionaire
from forbes.data.billionaires import BILLIES


def usage(argv):
    cmd = os.path.basename(argv[0])
    print('usage: %s <config_uri> [var=value]\n'
          '(example: "%s development.ini")' % (cmd, cmd))
    sys.exit(1)


def main(argv=sys.argv):
    if len(argv) < 2:
        usage(argv)
    config_uri = argv[1]
    options = parse_vars(argv[2:])
    setup_logging(config_uri)
    settings = get_appsettings(config_uri, options=options)
    # settings['sqlalchemy.url'] = os.environ.get('DATABASE_URL')

    engine = get_engine(settings)
    Base.metadata.create_all(engine)

    session_factory = get_session_factory(engine)

    with transaction.manager:
        dbsession = get_tm_session(session_factory, transaction.manager)
        billies = []
        for item in BILLIES:
            new_billie = Billionaire(
                name=item['name'],
                age=item['age'],
                networth=item['networth'],
                source=item['source'],
                country=item['country']
            )
            billies.append(new_billie)

        dbsession.add_all(billies)
