import os
import sys
import unittest
from shutil import copyfile

from pdc_config import TestConfig
from app import create_app, db_mgr, db
from app.auth.models import User


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

        # copy resource  demo db to test file
        appdir = os.path.join(os.path.dirname(os.path.abspath(__file__)), os.pardir)
        sqlite_file_name = os.path.abspath(os.path.join(appdir, 'resources', 'lesia-btp.sqlite'))
        if not os.path.isdir(self.app.instance_path):
            os.mkdir(self.app.instance_path)
        self.db_path = os.path.join(self.app.instance_path, 'test.db')
        copyfile(sqlite_file_name, self.db_path)

        # 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_agents(self):
        all_agents = db_mgr.agents()
        print(len(all_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))