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import io
import os
import shlex

from behave import when, then
import pexpect

import wrappers
from test.features.steps.utils import parse_cli_args_to_dict
from test.features.environment import MY_CNF_PATH, MYLOGIN_CNF_PATH, get_db_name_from_context
from test.utils import HOST, PORT, USER, PASSWORD
from mycli.config import encrypt_mylogin_cnf


TEST_LOGIN_PATH = 'test_login_path'


@when('we run mycli with arguments "{exact_args}" without arguments "{excluded_args}"')
@when('we run mycli without arguments "{excluded_args}"')
def step_run_cli_without_args(context, excluded_args, exact_args=''):
    wrappers.run_cli(
        context,
        run_args=parse_cli_args_to_dict(exact_args),
        exclude_args=parse_cli_args_to_dict(excluded_args).keys()
    )


@then('status contains "{expression}"')
def status_contains(context, expression):
    wrappers.expect_exact(context, f'{expression}', timeout=5)

    # Normally, the shutdown after scenario waits for the prompt.
    # But we may have changed the prompt, depending on parameters,
    # so let's wait for its last character
    context.cli.expect_exact('>')
    context.atprompt = True


@when('we create my.cnf file')
def step_create_my_cnf_file(context):
    my_cnf = (
        '[client]\n'
        f'host = {HOST}\n'
        f'port = {PORT}\n'
        f'user = {USER}\n'
        f'password = {PASSWORD}\n'
    )
    with open(MY_CNF_PATH, 'w') as f:
        f.write(my_cnf)


@when('we create mylogin.cnf file')
def step_create_mylogin_cnf_file(context):
    os.environ.pop('MYSQL_TEST_LOGIN_FILE', None)
    mylogin_cnf = (
        f'[{TEST_LOGIN_PATH}]\n'
        f'host = {HOST}\n'
        f'port = {PORT}\n'
        f'user = {USER}\n'
        f'password = {PASSWORD}\n'
    )
    with open(MYLOGIN_CNF_PATH, 'wb') as f:
        input_file = io.StringIO(mylogin_cnf)
        f.write(encrypt_mylogin_cnf(input_file).read())


@then('we are logged in')
def we_are_logged_in(context):
    db_name = get_db_name_from_context(context)
    context.cli.expect_exact(f'{db_name}>', timeout=5)
    context.atprompt = True