# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements.  See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership.  The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License.  You may obtain a copy of the License at
#
#   http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied.  See the License for the
# specific language governing permissions and limitations
# under the License.

import unittest
import os
import sys
import logging
from functools import partial


class TestCaseExecuteEngine(object):
    def __init__(self, testclient, config, tc_logger=None, debug_stream=None):
        """
        Initialize the testcase execution engine, just the basics here
        @var testcaseLogFile: client log file
        @var testResultLogFile: summary report file
        """
        self.testclient = testclient
        self.config = config
        self.tcRunLogger = tc_logger
        self.debugStream = debug_stream
        self.loader = unittest.loader.TestLoader()
        self.suite = None

    def loadTestsFromDir(self, testDirectory):
        """ Load the test suites from a package with multiple test files """
        self.suite = self.loader.discover(testDirectory)
        self.injectTestCase(self.suite)

    def loadTestsFromFile(self, file_name):
        """ Load the tests from a single script/module """
        if os.path.isfile(file_name):
            self.suite = self.loader.discover(os.path.dirname(file_name),
                                              os.path.basename(file_name))
            self.injectTestCase(self.suite)

    def injectTestCase(self, testSuites):
        for test in testSuites:
            if isinstance(test, unittest.BaseTestSuite):
                self.injectTestCase(test)
            else:
                #inject testclient and logger into each unittest
                self.tcRunLogger.name = test.__str__()
                setattr(test, "testClient", self.testclient)
                setattr(test, "config", self.config)
                setattr(test, "debug", self.tcRunLogger.debug)
                setattr(test.__class__, "clstestclient", self.testclient)
                if hasattr(test, "user"):
                    # attribute when test is entirely executed as user
                    self.testclient.createUserApiClient(test.UserName,
                                                        test.DomainName,
                                                        test.AcctType)

    def run(self):
        if self.suite:
            unittest.TextTestRunner(stream=self.debugStream,
                                    verbosity=2).run(self.suite)