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from mock import patch, call, MagicMock

from unittest import TestCase

from StringIO import StringIO

from datetime import datetime

#from itertools import product

from kamaki.cli import argument, errors

from kamaki.cli.config import Config

def assert_dicts_are_equal(test_case, d1, d2):

    for k, v in d1.items():

        test_case.assertTrue(k in d2)

        if isinstance(v, dict):

            test_case.assert_dicts_are_equal(v, d2[k])

        else:

            test_case.assertEqual(unicode(v), unicode(d2[k]))

cnf_path = 'kamaki.cli.config.Config'

arg_path = 'kamaki.cli.argument'

class Argument(TestCase):

    def test___init__(self):

        self.assertRaises(ValueError, argument.Argument, 'non-integer')

        self.assertRaises(AssertionError, argument.Argument, 1)

        self.assertRaises(AssertionError, argument.Argument, 0, 'noname')

        self.assertRaises(AssertionError, argument.Argument, 0, '--no name')

        self.assertRaises(AssertionError, argument.Argument, 0, ['-n', 'n m'])

        for arity, help, parsed_name, default in (

                (0, 'help 0', '--zero', None),

                (1, 'help 1', ['--one', '-o'], 'lala'),

                (-1, 'help -1', ['--help', '--or', '--more'], 0),

                (0, 'help 0 again', ['--again', ], True)):

            a = argument.Argument(arity, help, parsed_name, default)

            if arity:

                self.assertEqual(arity, a.arity)

            self.assertEqual(help, a.help)

            exp_name = parsed_name if (

                isinstance(parsed_name, list)) else [parsed_name, ]

            self.assertEqual(exp_name, a.parsed_name)

            exp_default = default if (default or arity) else False

            self.assertEqual(exp_default, a.default)

    def test_value(self):

        a = argument.Argument(1, parsed_name='--value')

        for value in (None, '', 0, 0.1, -12, [1, 'a', 2.8], (3, 'lala'), 'pi'):

            a.value = value

            self.assertEqual(value, a.value)

    def test_update_parser(self):

        for i, arity in enumerate((-1, 0, 1)):

            arp = argument.ArgumentParser()

            pname, aname = '--pname%s' % i, 'a_name_%s' % i

            a = argument.Argument(arity, 'args', pname, 42)

            a.update_parser(arp, aname)

            f = StringIO()

            arp.print_usage(file=f), f.seek(0)

            usage, exp = f.readline(), '[%s%s]\n' % (

                pname, (' %s' % aname.upper()) if arity else '')

            self.assertEqual(usage[-len(exp):], exp)

            del arp

class ConfigArgument(TestCase):

    def setUp(self):

        argument._config_arg = argument.ConfigArgument('Recovered Path')

    def test_value(self):

        c = argument._config_arg

        self.assertEqual(c.value, None)

        exp = '/some/random/path'

        c.value = exp

        self.assertTrue(isinstance(c.value, Config))

        self.assertEqual(c.file_path, exp)

        self.assertEqual(c.value.path, exp)

    def test_get(self):

        c = argument._config_arg

        c.value = None

        with patch('%s.get' % cnf_path, return_value='config') as get:

            self.assertEqual(c.value.get('global', 'config_cli'), 'config')

            self.assertEqual(get.mock_calls[-1], call('global', 'config_cli'))

    @patch('%s.keys' % cnf_path, return_value=(

        'image_cli', 'config_cli', 'history_cli', 'file'))

    def test_groups(self, keys):

        c = argument._config_arg

        c.value = None

        cset = set(c.groups)

        self.assertTrue(cset.issuperset(['image', 'config', 'history']))

        self.assertEqual(keys.mock_calls[-1], call('global'))

        self.assertFalse('file' in cset)

        self.assertEqual(keys.mock_calls[-1], call('global'))

    @patch('%s.items' % cnf_path, return_value=(

        ('image_cli', 'image'), ('file', 'pithos'),

        ('config_cli', 'config'), ('history_cli', 'history')))

    def test_cli_specs(self, items):

        c = argument._config_arg

        c.value = None

        cset = set(c.cli_specs)

        self.assertTrue(cset.issuperset([

            ('image', 'image'), ('config', 'config'), ('history', 'history')]))

        self.assertEqual(items.mock_calls[-1], call('global'))

        self.assertFalse(cset.issuperset([('file', 'pithos'), ]))

        self.assertEqual(items.mock_calls[-1], call('global'))

    def test_get_global(self):

        c = argument._config_arg

        c.value = None

        for k, v in (

                ('config_cli', 'config'),

                ('image_cli', 'image'),

                ('history_cli', 'history')):

            with patch('%s.get_global' % cnf_path, return_value=v) as gg:

                self.assertEqual(c.get_global(k), v)

                self.assertEqual(gg.mock_calls[-1], call(k))

    def test_get_cloud(self):

        c = argument._config_arg

        c.value = None

        with patch(

                '%s.get_cloud' % cnf_path,

                return_value='http://cloud') as get_cloud:

            self.assertTrue(len(c.get_cloud('mycloud', 'url')) > 0)

            self.assertEqual(get_cloud.mock_calls[-1],  call('mycloud', 'url'))

        with patch(

                '%s.get_cloud' % cnf_path,

                side_effect=KeyError('no token')) as get_cloud:

            self.assertRaises(KeyError, c.get_cloud, 'mycloud', 'token')

        invalidcloud = 'PLEASE_DO_NOT_EVER_NAME_YOUR_CLOUD_LIKE_THIS111'

        self.assertRaises(KeyError, c.get_cloud, invalidcloud, 'url')

class RuntimeConfigArgument(TestCase):

    def setUp(self):

        argument._config_arg = argument.ConfigArgument('Recovered Path')

    @patch('%s.Argument.__init__' % arg_path)

    def test___init__(self, arg):

        config, help, pname, default = 'config', 'help', 'pname', 'default'

        rca = argument.RuntimeConfigArgument(config, help, pname, default)

        self.assertTrue(isinstance(rca, argument.RuntimeConfigArgument))

        self.assertEqual(rca._config_arg, config)

        self.assertEqual(arg.mock_calls[-1], call(1, help, pname, default))

    @patch('%s.override' % cnf_path)

    def test_value(self, override):

        config, help, pname, default = argument._config_arg, 'help', '-n', 'df'

        config.value = None

        rca = argument.RuntimeConfigArgument(config, help, pname, default)

        self.assertEqual(rca.value, default)

        for options in ('grp', 'grp.opt', 'k v', '=nokey', 2.8, None, 42, ''):

            self.assertRaises(TypeError, rca.value, options)

        for options in ('key=val', 'grp.key=val', 'dotted.opt.key=val'):

            rca.value = options

            option, sep, val = options.partition('=')

            grp, sep, key = option.partition('.')

            grp, key = (grp, key) if key else ('global', grp)

            self.assertEqual(override.mock_calls[-1], call(grp, key, val))

class FlagArgument(TestCase):

    @patch('%s.Argument.__init__' % arg_path)

    def test___init__(self, arg):

        help, pname, default = 'help', 'pname', 'default'

        fa = argument.FlagArgument(help, pname, default)

        self.assertTrue(isinstance(fa, argument.FlagArgument))

        arg.assert_called_once(0, help, pname, default)

class ValueArgument(TestCase):

    @patch('%s.Argument.__init__' % arg_path)

    def test___init__(self, arg):

        help, pname, default = 'help', 'pname', 'default'

        fa = argument.ValueArgument(help, pname, default)

        self.assertTrue(isinstance(fa, argument.ValueArgument))

        arg.assert_called_once(1, help, pname, default)

class IntArgument(TestCase):

    def test_value(self):

        ia = argument.IntArgument(parsed_name='--ia')

        self.assertEqual(ia.value, None)

        for v in (1, 0, -1, 923455555555555555555555555555555):

            ia.value = v

            self.assertEqual(ia.value, v)

        for v in ('1', '-1', 2.8):

            ia.value = v

            self.assertEqual(ia.value, int(v))

        for v, err in (

                ('invalid', errors.CLIError),

                (None, TypeError), (False, TypeError), ([1, 2, 3], TypeError)):

            try:

                ia.value = v

            except Exception as e:

                self.assertTrue(isinstance(e, err))

class DateArgument(TestCase):

    def test_timestamp(self):

        da = argument.DateArgument(parsed_name='--date')

        self.assertEqual(da.timestamp, None)

        date, format, exp = '24-10-1917', '%d-%m-%Y', -1646964000.0

        da._value = argument.dtm.strptime(date, format)

        self.assertEqual(da.timestamp, exp)

    def test_formated(self):

        da = argument.DateArgument(parsed_name='--date')

        self.assertEqual(da.formated, None)

        date, format, exp = (

            '24-10-1917', '%d-%m-%Y', 'Wed Oct 24 00:00:00 1917')

        da._value = argument.dtm.strptime(date, format)

        self.assertEqual(da.formated, exp)

    @patch('%s.DateArgument.timestamp' % arg_path)

    @patch('%s.DateArgument.format_date' % arg_path)

    def test_value(self, format_date, timestamp):

        da = argument.DateArgument(parsed_name='--date')

        self.assertTrue(isinstance(da.value, MagicMock))

        da.value = 'Something'

        format_date.assert_called_once(call('Something'))

    def test_format_date(self):

        da = argument.DateArgument(parsed_name='--date')

        for datestr, exp in (

                ('Wed Oct 24 01:02:03 1917', datetime(1917, 10, 24, 1, 2, 3)),

                ('24-10-1917', datetime(1917, 10, 24)),

                ('01:02:03 24-10-1917', datetime(1917, 10, 24, 1, 2, 3))):

            self.assertEqual(da.format_date(datestr), exp)

        for datestr, err in (

                ('32-40-20134', errors.CLIError),

                ('Wednesday, 24 Oct 2017', errors.CLIError),

                (None, TypeError), (0.8, TypeError)):

            self.assertRaises(err, da.format_date, datestr)

class VersionArgument(TestCase):

    def test_value(self):

        va = argument.VersionArgument(parsed_name='--version')

        self.assertTrue(va, argument.VersionArgument)

        va.value = 'some value'

        self.assertEqual(va.value, 'some value')

class KeyValueArgument(TestCase):

    @patch('%s.Argument.__init__' % arg_path)

    def test___init__(self, init):

        help, pname, default = 'help', 'pname', 'default'

        kva = argument.KeyValueArgument(help, pname, default)

        self.assertTrue(isinstance(kva, argument.KeyValueArgument))

        self.assertEqual(init.mock_calls[-1], call(-1, help, pname, default))

    def test_value(self):

        kva = argument.KeyValueArgument(parsed_name='--keyval')

        self.assertEqual(kva.value, {})

        for kvpairs in (

                'strval', 'key=val', 2.8, 42, None,

                ('key', 'val'), ('key val'), ['=val', 'key=val'],

                ['key1=val1', 'key2 val2'], ('key1 = val1', )):

            try:

                kva.value = kvpairs

            except Exception as e:

                self.assertTrue(isinstance(e, errors.CLIError))

        for kvpairs, exp in (

                (('key=val', ), {'key': 'val'}),

                (['key1=val1', 'key2=val2'], {'key1': 'val1', 'key2': 'val2'}),

                (

                    ('k1=v1 v2', 'k3=', 'k 4=v4'),

                    {'k1': 'v1 v2', 'k3': '', 'k 4': 'v4'}),

                (('k=v1', 'k=v2', 'k=v3'), {'k': 'v3'})

            ):

            kva.value = kvpairs

            assert_dicts_are_equal(self, kva.value, exp)

class ProgressBarArgument(TestCase):

    class PseudoBar(object):

            message = ''

            suffix = ''

            def start():

                pass

    @patch('%s.FlagArgument.__init__' % arg_path)

    def test___init__(self, init):

        help, pname, default = 'help', '--progress', 'default'

        pba = argument.ProgressBarArgument(help, pname, default)

        self.assertTrue(isinstance(pba, argument.ProgressBarArgument))

        self.assertEqual(pba.suffix, '%(percent)d%%')

        init.assert_called_once(help, pname, default)

    def test_clone(self):

        pba = argument.ProgressBarArgument(parsed_name='--progress')

        pba.value = None

        pba_clone = pba.clone()

        self.assertTrue(isinstance(pba, argument.ProgressBarArgument))

        self.assertTrue(isinstance(pba_clone, argument.ProgressBarArgument))

        self.assertNotEqual(pba, pba_clone)

        self.assertEqual(pba.parsed_name, pba_clone.parsed_name)

    def test_get_generator(self):

        pba = argument.ProgressBarArgument(parsed_name='--progress')

        pba.value = None

        msg, msg_len = 'message', 40

        with patch('%s.KamakiProgressBar.start' % arg_path) as start:

            pba.get_generator(msg, msg_len)

            self.assertTrue(isinstance(pba.bar, argument.KamakiProgressBar))

            self.assertNotEqual(pba.bar.message, msg)

            self.assertEqual(

                pba.bar.message, '%s%s' % (msg, ' ' * (msg_len - len(msg))))

            self.assertEqual(pba.bar.suffix, '%(percent)d%% - %(eta)ds')

            start.assert_called_once()

    def test_finish(self):

        pba = argument.ProgressBarArgument(parsed_name='--progress')

        pba.value = None

        self.assertEqual(pba.finish(), None)

        pba.bar = argument.KamakiProgressBar()

        with patch('%s.KamakiProgressBar.finish' % arg_path) as finish:

            pba.finish()

            finish.assert_called_once()

class ArgumentParseManager(TestCase):

    @patch('%s.ArgumentParseManager.parse' % arg_path)

    @patch('%s.ArgumentParseManager.update_parser' % arg_path)

    def test___init__(self, parse, update_parser):

        for arguments in (None, {'k1': 'v1', 'k2': 'v2'}):

            apm = argument.ArgumentParseManager('exe', arguments)

            self.assertTrue(isinstance(apm, argument.ArgumentParseManager))

            self.assertTrue(isinstance(apm.parser, argument.ArgumentParser))

            self.assertFalse(apm.parser.add_help)

            self.assertEqual(

                apm.parser.formatter_class,

                argument.RawDescriptionHelpFormatter)

            self.assertEqual(

                apm.syntax, 'exe <cmd_group> [<cmd_subbroup> ...] <cmd>')

            assert_dicts_are_equal(

                self, apm.arguments,

                arguments or argument._arguments)

            self.assertFalse(apm._parser_modified)

            self.assertEqual(apm._parsed, None)

            self.assertEqual(apm._unparsed, None)

            self.assertEqual(parse.mock_calls[-1], call())

            if arguments:

                update_parser.assert_called_once()

    def test_syntax(self):

        apm = argument.ArgumentParseManager('exe')

        self.assertEqual(

            apm.syntax, 'exe <cmd_group> [<cmd_subbroup> ...] <cmd>')

        apm.syntax = 'some syntax'

        self.assertEqual(apm.syntax, 'some syntax')

    @patch('%s.ArgumentParseManager.update_parser' % arg_path)

    def test_arguments(self, update_parser):

        apm = argument.ArgumentParseManager('exe')

        assert_dicts_are_equal(self, apm.arguments, argument._arguments)

        update_parser.assert_called_once()

        exp = {'k1': 'v1', 'k2': 'v2'}

        apm.arguments = exp

        assert_dicts_are_equal(self, apm.arguments, exp)

        self.assertEqual(update_parser.mock_calls[-1], call())

        try:

            apm.arguments = None

        except Exception as e:

            self.assertTrue(isinstance(e, AssertionError))

    @patch('%s.ArgumentParseManager.parse' % arg_path)

    def test_parsed(self, parse):

        apm = argument.ArgumentParseManager('exe')

        self.assertEqual(apm.parsed, None)

        exp = 'you have been parsed'

        apm._parsed = exp

        self.assertEqual(apm.parsed, exp)

        apm._parser_modified = True

        apm._parsed = exp + ' v2'

        self.assertEqual(apm.parsed, exp + ' v2')

        self.assertEqual(parse.mock_calls, [call(), call()])

    @patch('%s.ArgumentParseManager.parse' % arg_path)

    def test_unparsed(self, parse):

        apm = argument.ArgumentParseManager('exe')

        self.assertEqual(apm.unparsed, None)

        exp = 'you have been unparsed'

        apm._unparsed = exp

        self.assertEqual(apm.unparsed, exp)

        apm._parser_modified = True

        apm._unparsed = exp + ' v2'

        self.assertEqual(apm.unparsed, exp + ' v2')

        self.assertEqual(parse.mock_calls, [call(), call()])

    @patch('%s.Argument.update_parser' % arg_path

        )

    def test_update_parser(self, update_parser):

        apm = argument.ArgumentParseManager('exe')

        body_count = len(update_parser.mock_calls)

        exp = len(argument._arguments)

        self.assertEqual(body_count, exp)

        apm.update_parser()

        exp = len(apm.arguments) + body_count

        body_count = len(update_parser.mock_calls)

        self.assertEqual(body_count, exp)

        expd = dict(

            k1=argument.Argument(0, parsed_name='-a'),

            k2=argument.Argument(0, parsed_name='-b'))

        apm.update_parser(expd)

        body_count = len(update_parser.mock_calls)

        self.assertEqual(body_count, exp + 2)

    def test_update_arguments(self):

        (inp, cor, exp) = (

            {'k1': 'v1', 'k2': 'v3'}, {'k2': 'v2'}, {'k1': 'v1', 'k2': 'v2'})

        apm = argument.ArgumentParseManager('exe')

        with patch(

                '%s.ArgumentParseManager.update_parser' % arg_path) as UP:

            apm.update_arguments(None)

            self.assertEqual(len(UP.mock_calls), 0)

            apm._arguments = inp

            apm.update_arguments(cor)

            assert_dicts_are_equal(self, apm.arguments, exp)

            UP.assert_called_once_with()

    def test_parse(self):

        raise errors.CLIUnimplemented()

if __name__ == '__main__':

    from sys import argv

    from kamaki.cli.test import runTestCase

    runTestCase(Argument, 'Argument', argv[1:])

    runTestCase(ConfigArgument, 'ConfigArgument', argv[1:])

    runTestCase(RuntimeConfigArgument, 'RuntimeConfigArgument', argv[1:])

    runTestCase(FlagArgument, 'FlagArgument', argv[1:])

    runTestCase(FlagArgument, 'ValueArgument', argv[1:])

    runTestCase(IntArgument, 'IntArgument', argv[1:])

    runTestCase(DateArgument, 'DateArgument', argv[1:])

    runTestCase(VersionArgument, 'VersionArgument', argv[1:])

    runTestCase(KeyValueArgument, 'KeyValueArgument', argv[1:])

    runTestCase(ProgressBarArgument, 'ProgressBarArgument', argv[1:])

    runTestCase(ArgumentParseManager, 'ArgumentParseManager', argv[1:])