# 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 datetime

import pytest

from rhodecode.lib.vcs.exceptions import CommitDoesNotExistError
from rhodecode.lib.vcs.nodes import FileNode
from rhodecode.tests.vcs.conftest import BackendTestMixin


@pytest.mark.usefixtures("vcs_repository_support")
class TestGetitem(BackendTestMixin):
    @classmethod
    def _get_commits(cls):
        start_date = datetime.datetime(2010, 1, 1, 20)
        for x in range(5):
            yield {
                "message": "Commit %d" % x,
                "author": "Joe Doe <joe.doe@example.com>",
                "date": start_date + datetime.timedelta(hours=12 * x),
                "added": [
                    FileNode(b"file_%d.txt" % x, content="Foobar %d" % x),
                ],
            }

    def test_last_item_is_tip(self):
        assert self.repo[-1] == self.repo.get_commit()

    @pytest.mark.parametrize(
        "offset, message",
        [
            (-1, "Commit 4"),
            (-2, "Commit 3"),
            (-5, "Commit 0"),
        ],
    )
    def test_negative_offset_fetches_correct_commit(self, offset, message):
        assert self.repo[offset].message == message

    def test_returns_correct_items(self):
        commits = [self.repo[x] for x in range(len(self.repo.commit_ids))]
        assert commits == list(self.repo.get_commits())

    def test_raises_for_next_commit(self):
        next_commit_idx = len(self.repo.commit_ids)
        with pytest.raises(CommitDoesNotExistError):
            self.repo[next_commit_idx]

    def test_raises_for_not_existing_commit_idx(self):
        not_existing_commit_idx = 1000
        with pytest.raises(CommitDoesNotExistError):
            self.repo[not_existing_commit_idx]