import os
import unittest

from pdc_config import TestConfig
from app import create_app, db_mgr
from tests.common_db_feed import resources_to_instancedb


class BaseTestCase(unittest.TestCase):
    def setUp(self):
        # initialise app
        self.app = create_app(TestConfig)
        self.db_path = resources_to_instancedb(self.app)

        # force db path to newly create file
        self.app.config.update(
            SQLALCHEMY_DATABASE_URI='sqlite:///' + self.db_path
        )

        # update flask context
        self.app_context = self.app.app_context()
        self.app_context.push()

    def tearDown(self):
        if os.path.isfile(self.db_path):
            os.remove(self.db_path)
        self.app_context.pop()

    def test_always_true(self):
        self.assertTrue(True)


class DbMgrTestCase(BaseTestCase):

    def test_projects(self):
        all_projects = db_mgr.projects()
        self.assertEqual(102, len(all_projects))

    def test_projects_columns(self):
        all_projects = db_mgr.projects()
        self.assertEqual(5, len(all_projects[0]))

    def test_agents(self):
        all_agents = db_mgr.agents()
        self.assertEqual(548, len(all_agents))

    def test_charges_by_agent(self):
        all_charges = db_mgr.charges_by_agent(355)
        self.assertEqual(17, len(all_charges))

    def test_charges_by_agent_stacked(self):
        stacked_charges = db_mgr.charges_by_agent_stacked(60)
        # Waiting for 17 periods + headers line
        self.assertEqual(18, len(stacked_charges))

    def test_charges_by_project_stacked(self):
        stacked_charges = db_mgr.charges_by_project_stacked(60)
        # Waiting for 17 periods + headers line
        self.assertEqual(18, len(stacked_charges))