import falcon

from barbican.api.resources import *

from config import config
from sqlalchemy import create_engine, MetaData
from sqlalchemy.orm import scoped_session, sessionmaker
from barbican.model.tenant import Base

"""
Locally scoped db session
"""
_Session = scoped_session(sessionmaker())
_engine = None


def db_session():
    return _Session


def _engine_from_config(configuration):
    configuration = dict(configuration)
    url = configuration.pop('url')

    return create_engine(url, **configuration)


def init_tenant_model():
    _engine = _engine_from_config(config['sqlalchemy'])
    from barbican.model.tenant import Tenant, Secret
    Base.metadata.create_all(_engine)
    _Session.bind = _engine


# Initialize the data model
init_tenant_model()

# test the database out
#from barbican.model.tenant import Tenant, Secret
#jw_user = Tenant("jwoody")
#_Session.add(jw_user)

# select all and print out all the results sorted by id
#for instance in _Session.query(Tenant).order_by(Tenant.id):
#    print instance.username

# Resources
versions = VersionResource()
tenants = TenantsResource(db_session())
tenant = TenantResource(db_session())
secrets = SecretsResource(db_session())
secret = SecretResource(db_session())

# Routing
application = api = falcon.API()

api.add_route('/', versions)
api.add_route('/v1', tenants)
api.add_route('/v1/{tenant_id}', tenant)
api.add_route('/v1/{tenant_id}/secrets', secrets)
api.add_route('/v1/{tenant_id}/secrets/{secret_id}', secret)