import json
import logging
import unittest
from werkzeug.test import Client
from werkzeug.test import EnvironBuilder

from db_controller import DB_Driver_Embedded
import db_controller as dbc
from db_op import DBO_cypher_query
from rhizi_server import Config
import rz_api
from rz_server import Config
from test_util__pydev import debug__pydev_pd_arg


class TestRhiziAPI(unittest.TestCase):

    def setUp(self):
        pass

    @classmethod
    def setUpClass(self):
        cfg = Config.init_from_file('res/etc/rhizi-server.conf')
        self.db_ctl = dbc.DB_Controller(cfg.db_base_url)
        rz_api.db_ctl = self.db_ctl

        # TODO extract to superclass
        log = logging.getLogger('rhizi')
        log.setLevel(logging.DEBUG)
        log_handler_c = logging.StreamHandler()
        log.addHandler(log_handler_c)

    def test_load_node_non_existing(self):
        """
        loading a non existing node test
        """
        id_set = ['non_existing_id']
        with rz_api.webapp.test_client() as c:
            req = c.post('/load/node-set-by-id',
                         content_type='application/json',
                         data=json.dumps({ 'id_set': id_set}))
            req_data = json.loads(req.data)
            rz_data = req_data['data']
            rz_err = req_data['error']
            self.assertEqual(None, rz_err)
            self.assertEqual(0, len(rz_data))

    def test_load_node_set_by_id_existing(self):
        """
        loading an existing node test
        """
        id_set = ['skill_00']
        q = ['create (s:Skill {id: \'skill_00\'} )']
        op = DBO_cypher_query(q)
        self.db_ctl.exec_op(op)

        with rz_api.webapp.test_client() as c:
            req = c.post('/load/node-set-by-id',
                         content_type='application/json',
                         data=json.dumps({ 'id_set': id_set}))
            n_set = json.loads(req.data)['data']

            self.assertEqual(1, len(n_set))
            self.assertEqual(n_set[0]['id'], id_set[0])

    def test_load_node_set(self):
        pass

@debug__pydev_pd_arg
def main():
    unittest.main(defaultTest='Test_DB_Op.test_cypher_exp_parsing', verbosity=2)

if __name__ == "__main__":
    main()