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from unittest import makeSuite, TestSuite, TextTestRunner, TestCase
from inspect import getmembers, isclass

from kamaki.cli.command_tree.test import Command, CommandTree
from kamaki.cli.argument.test import (
    Argument, ConfigArgument, RuntimeConfigArgument, FlagArgument,
    ValueArgument, IntArgument, DateArgument, VersionArgument,
    KeyValueArgument, ProgressBarArgument, ArgumentParseManager)


#  TestCase auxiliary methods

def runTestCase(cls, test_name, args=[], failure_collector=[]):
    """
    :param cls: (TestCase) a set of Tests

    :param test_name: (str)

    :param args: (list) these are prefixed with test_ and used as params when
        instantiating cls

    :param failure_collector: (list) collects info of test failures

    :returns: (int) total # of run tests
    """
    suite = TestSuite()
    if args:
        suite.addTest(cls('_'.join(['test'] + args)))
    else:
        suite.addTest(makeSuite(cls))
    print('* Test * %s *' % test_name)
    r = TextTestRunner(verbosity=2).run(suite)
    failure_collector += r.failures
    return r.testsRun


def get_test_classes(module=__import__(__name__), name=''):
    module_stack = [module]
    while module_stack:
        module = module_stack[-1]
        module_stack = module_stack[:-1]
        for objname, obj in getmembers(module):
            if (objname == name or not name):
                if isclass(obj) and objname != 'TestCase' and (
                        issubclass(obj, TestCase)):
                    yield (obj, objname)


def main(argv):
    found = False
    failure_collector = list()
    num_of_tests = 0
    for cls, name in get_test_classes(name=argv[1] if len(argv) > 1 else ''):
        found = True
        num_of_tests += runTestCase(cls, name, argv[2:], failure_collector)
    if not found:
        print('Test "%s" not found' % ' '.join(argv[1:]))
    else:
        for i, failure in enumerate(failure_collector):
            print('Failure %s: ' % (i + 1))
            for field in failure:
                print('\t%s' % field)
        print('\nTotal tests run: %s' % num_of_tests)
        print('Total failures: %s' % len(failure_collector))


if __name__ == '__main__':
    from sys import argv
    main(argv)