import contextlib
from io import StringIO

from lbrynet.extras.cli import normalize_value, main
from lbrynet.extras.system_info import get_platform
from torba.testcase import AsyncioTestCase


class CLITest(AsyncioTestCase):

    @staticmethod
    def shell(argv):
        actual_output = StringIO()
        with contextlib.redirect_stdout(actual_output):
            with contextlib.redirect_stderr(actual_output):
                try:
                    main(argv)
                except SystemExit as e:
                    print(e.args[0])
        return actual_output.getvalue().strip()

    def test_guess_type(self):
        self.assertEqual('0.3.8', normalize_value('0.3.8'))
        self.assertEqual('0.3', normalize_value('0.3'))
        self.assertEqual(3, normalize_value('3'))
        self.assertEqual(3, normalize_value(3))

        self.assertEqual(
            'VdNmakxFORPSyfCprAD/eDDPk5TY9QYtSA==',
            normalize_value('VdNmakxFORPSyfCprAD/eDDPk5TY9QYtSA==')
        )

        self.assertTrue(normalize_value('TRUE'))
        self.assertTrue(normalize_value('true'))
        self.assertTrue(normalize_value('TrUe'))
        self.assertFalse(normalize_value('FALSE'))
        self.assertFalse(normalize_value('false'))
        self.assertFalse(normalize_value('FaLsE'))
        self.assertTrue(normalize_value(True))

        self.assertEqual('3', normalize_value('3', key="uri"))
        self.assertEqual('0.3', normalize_value('0.3', key="uri"))
        self.assertEqual('True', normalize_value('True', key="uri"))
        self.assertEqual('False', normalize_value('False', key="uri"))

        self.assertEqual('3', normalize_value('3', key="file_name"))
        self.assertEqual('3', normalize_value('3', key="name"))
        self.assertEqual('3', normalize_value('3', key="download_directory"))
        self.assertEqual('3', normalize_value('3', key="channel_name"))

        self.assertEqual(3, normalize_value('3', key="some_other_thing"))

    def test_help(self):
        self.assertIn(
            'usage: lbrynet [--help] [--version] [--api API]', self.shell(['--help'])
        )
        # start is special command, with separate help handling
        self.assertIn(
            '--share-usage-data', self.shell(['start', '--help'])
        )
        # publish is ungrouped command, returns usage only implicitly
        self.assertIn(
            'publish (<name> | --name=<name>)', self.shell(['publish'])
        )
        # publish is ungrouped command, with explicit --help
        self.assertIn(
            'Make a new name claim and publish', self.shell(['publish', '--help'])
        )
        # account is a group, returns help implicitly
        self.assertIn(
            '{add,balance,create,decrypt,encrypt,fund,list,lock,max_address_gap,remove,send,set,unlock}',
            self.shell(['account'])
        )
        # account is a group, with explicit --help
        self.assertIn(
            '{add,balance,create,decrypt,encrypt,fund,list,lock,max_address_gap,remove,send,set,unlock}',
            self.shell(['account', '--help'])
        )
        # account add is a grouped command, returns usage implicitly
        self.assertIn(
            'account_add (<account_name> | --account_name=<account_name>)',
            self.shell(['account', 'add'])
        )
        # account add is a grouped command, with explicit --help
        self.assertIn(
            'Add a previously created account from a seed,', self.shell(['account', 'add', '--help'])
        )
        # help for invalid command, with explicit --help
        self.assertIn(
            "invalid choice: 'publish1'", self.shell(['publish1', '--help'])
        )
        # help for invalid command, implicit
        self.assertIn(
            "invalid choice: 'publish1'", self.shell(['publish1'])
        )

    def test_version_command(self):
        self.assertEqual(
            "lbrynet {lbrynet_version}".format(**get_platform()), self.shell(['--version'])
        )

    def test_valid_command_daemon_not_started(self):
        self.assertEqual(
            "Could not connect to daemon. Are you sure it's running?",
            self.shell(["publish", '--name=asd', '--bid=99'])
        )

    def test_deprecated_command_daemon_not_started(self):
        actual_output = StringIO()
        with contextlib.redirect_stdout(actual_output):
            main(["wallet", "balance"])
        self.assertEqual(
            actual_output.getvalue().strip(),
            "wallet_balance is deprecated, using account_balance.\n"
            "Could not connect to daemon. Are you sure it's running?"
        )