# Copyright (C) 2010-2023 RhodeCode GmbH
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License, version 3
# (only), as published by the Free Software Foundation.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.
#
# This program is dual-licensed. If you wish to learn more about the
# RhodeCode Enterprise Edition, including its added features, Support services,
# and proprietary license terms, please see https://rhodecode.com/licenses/

import os
import time
import logging
import datetime
import tempfile
from os.path import join as jn
import urllib.parse

import pytest

from rhodecode.model.db import User
from rhodecode.lib import auth
from rhodecode.lib import helpers as h
from rhodecode.lib.helpers import flash
from rhodecode.lib.str_utils import safe_str
from rhodecode.lib.hash_utils import sha1_safe

log = logging.getLogger(__name__)

__all__ = [
    'get_new_dir', 'TestController', 'route_path_generator',
    'clear_cache_regions',
    'assert_session_flash', 'login_user', 'no_newline_id_generator',
    'TESTS_TMP_PATH', 'HG_REPO', 'GIT_REPO', 'SVN_REPO',
    'NEW_HG_REPO', 'NEW_GIT_REPO',
    'HG_FORK', 'GIT_FORK', 'TEST_USER_ADMIN_LOGIN', 'TEST_USER_ADMIN_PASS',
    'TEST_USER_REGULAR_LOGIN', 'TEST_USER_REGULAR_PASS',
    'TEST_USER_REGULAR_EMAIL', 'TEST_USER_REGULAR2_LOGIN',
    'TEST_USER_REGULAR2_PASS', 'TEST_USER_REGULAR2_EMAIL', 'TEST_HG_REPO',
    'TEST_HG_REPO_CLONE', 'TEST_HG_REPO_PULL', 'TEST_GIT_REPO',
    'TEST_GIT_REPO_CLONE', 'TEST_GIT_REPO_PULL', 'SCM_TESTS',
]


# SOME GLOBALS FOR TESTS
TEST_DIR = tempfile.gettempdir()

TESTS_TMP_PATH = jn(TEST_DIR, 'rc_test_{}'.format(next(tempfile._RandomNameSequence())))
TEST_USER_ADMIN_LOGIN = 'test_admin'
TEST_USER_ADMIN_PASS = 'test12'
TEST_USER_ADMIN_EMAIL = 'test_admin@mail.com'

TEST_USER_REGULAR_LOGIN = 'test_regular'
TEST_USER_REGULAR_PASS = 'test12'
TEST_USER_REGULAR_EMAIL = 'test_regular@mail.com'

TEST_USER_REGULAR2_LOGIN = 'test_regular2'
TEST_USER_REGULAR2_PASS = 'test12'
TEST_USER_REGULAR2_EMAIL = 'test_regular2@mail.com'

HG_REPO = 'vcs_test_hg'
GIT_REPO = 'vcs_test_git'
SVN_REPO = 'vcs_test_svn'

NEW_HG_REPO = 'vcs_test_hg_new'
NEW_GIT_REPO = 'vcs_test_git_new'

HG_FORK = 'vcs_test_hg_fork'
GIT_FORK = 'vcs_test_git_fork'

## VCS
SCM_TESTS = ['hg', 'git']
uniq_suffix = str(int(time.mktime(datetime.datetime.now().timetuple())))

TEST_GIT_REPO = jn(TESTS_TMP_PATH, GIT_REPO)
TEST_GIT_REPO_CLONE = jn(TESTS_TMP_PATH, f'vcsgitclone{uniq_suffix}')
TEST_GIT_REPO_PULL = jn(TESTS_TMP_PATH, f'vcsgitpull{uniq_suffix}')

TEST_HG_REPO = jn(TESTS_TMP_PATH, HG_REPO)
TEST_HG_REPO_CLONE = jn(TESTS_TMP_PATH, f'vcshgclone{uniq_suffix}')
TEST_HG_REPO_PULL = jn(TESTS_TMP_PATH, f'vcshgpull{uniq_suffix}')

TEST_REPO_PREFIX = 'vcs-test'


def clear_cache_regions(regions=None):
    # dogpile
    from rhodecode.lib.rc_cache import region_meta
    for region_name, region in region_meta.dogpile_cache_regions.items():
        if not regions or region_name in regions:
            region.invalidate()


def get_new_dir(title):
    """
    Returns always new directory path.
    """
    from rhodecode.tests.vcs.utils import get_normalized_path
    name_parts = [TEST_REPO_PREFIX]
    if title:
        name_parts.append(title)
    hex_str = sha1_safe(f'{os.getpid()} {time.time()}')
    name_parts.append(hex_str)
    name = '-'.join(name_parts)
    path = os.path.join(TEST_DIR, name)
    return get_normalized_path(path)


def repo_id_generator(name):
    numeric_hash = 0
    for char in name:
        numeric_hash += (ord(char))
    return numeric_hash


@pytest.mark.usefixtures('app', 'index_location')
class TestController(object):

    maxDiff = None

    def log_user(self, username=TEST_USER_ADMIN_LOGIN,
                 password=TEST_USER_ADMIN_PASS):
        self._logged_username = username
        self._session = login_user_session(self.app, username, password)
        self.csrf_token = auth.get_csrf_token(self._session)

        return self._session['rhodecode_user']

    def logout_user(self):
        logout_user_session(self.app, auth.get_csrf_token(self._session))
        self.csrf_token = None
        self._logged_username = None
        self._session = None

    def _get_logged_user(self):
        return User.get_by_username(self._logged_username)


def login_user_session(
        app, username=TEST_USER_ADMIN_LOGIN, password=TEST_USER_ADMIN_PASS):

    response = app.post(
        h.route_path('login'),
        {'username': username, 'password': password})
    if 'invalid user name' in response.text:
        pytest.fail(f'could not login using {username} {password}')

    assert response.status == '302 Found'
    response = response.follow()
    assert response.status == '200 OK'

    session = response.get_session_from_response()
    assert 'rhodecode_user' in session
    rc_user = session['rhodecode_user']
    assert rc_user.get('username') == username
    assert rc_user.get('is_authenticated')

    return session


def logout_user_session(app, csrf_token):
    app.post(h.route_path('logout'), {'csrf_token': csrf_token}, status=302)


def login_user(app, username=TEST_USER_ADMIN_LOGIN,
               password=TEST_USER_ADMIN_PASS):
    return login_user_session(app, username, password)['rhodecode_user']


def assert_session_flash(response, msg=None, category=None, no_=None):
    """
    Assert on a flash message in the current session.

    :param response: Response from give calll, it will contain flash
        messages or bound session with them.
    :param msg: The expected message. Will be evaluated if a
        :class:`LazyString` is passed in.
    :param category: Optional. If passed, the message category will be
        checked as well.
    :param no_: Optional. If passed, the message will be checked to NOT
        be in the flash session
    """
    if msg is None and no_ is None:
        raise ValueError("Parameter msg or no_ is required.")

    if msg and no_:
        raise ValueError("Please specify either msg or no_, but not both")

    session = response.get_session_from_response()
    messages = flash.pop_messages(session=session)
    msg = _eval_if_lazy(msg)

    if no_:
        error_msg = f'unable to detect no_ message `{no_}` in empty flash list'
    else:
        error_msg = f'unable to find message `{msg}` in empty flash list'
    assert messages, error_msg
    message = messages[0]

    message_text = _eval_if_lazy(message.message) or ''

    if no_:
        if no_ in message_text:
            msg = f'msg `{no_}` found in session flash.'
            pytest.fail(safe_str(msg))
    else:

        if msg not in message_text:
            fail_msg = f'msg `{msg}` not found in ' \
                       f'session flash: got `{message_text}` (type:{type(message_text)}) instead'

            pytest.fail(safe_str(fail_msg))

        if category:
            assert category == message.category


def _eval_if_lazy(value):
    return value.eval() if hasattr(value, 'eval') else value


def no_newline_id_generator(test_name):
    """
    Generates a test name without spaces or newlines characters. Used for
    nicer output of progress of test
    """

    test_name = safe_str(test_name)\
        .replace('\n', '_N') \
        .replace('\r', '_N') \
        .replace('\t', '_T') \
        .replace(' ', '_S')

    return test_name or 'test-with-empty-name'


def route_path_generator(url_defs, name, params=None, **kwargs):

    base_url = url_defs[name].format(**kwargs)

    if params:
        base_url = '{}?{}'.format(base_url, urllib.parse.urlencode(params))
    return base_url