# Copyright 2010-2026 The pygit2 contributors
#
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# it under the terms of the GNU General Public License, version 2,
# as published by the Free Software Foundation.
#
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# the authors give you unlimited permission to link the compiled
# version of this file into combinations with other programs,
# and to distribute those combinations without any restriction
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# restrictions do apply in other respects; for example, they cover
# modification of the file, and distribution when not linked into
# a combined executable.)
#
# This file 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.
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# You should have received a copy of the GNU General Public License
# along with this program; see the file COPYING.  If not, write to
# the Free Software Foundation, 51 Franklin Street, Fifth Floor,
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from collections.abc import Generator
from pathlib import Path

import pytest

import pygit2
from pygit2 import Repository
from pygit2.enums import DiffOption

from . import utils


@pytest.fixture
def repo(tmp_path: Path) -> Generator[Repository, None, None]:
    with utils.TemporaryRepository('binaryfilerepo.zip', tmp_path) as path:
        yield pygit2.Repository(path)


PATCH_BINARY = """diff --git a/binary_file b/binary_file
index 86e5c10..b835d73 100644
Binary files a/binary_file and b/binary_file differ
"""

PATCH_BINARY_SHOW = """diff --git a/binary_file b/binary_file
index 86e5c1008b5ce635d3e3fffa4434c5eccd8f00b6..b835d73543244b6694f36a8c5dfdffb71b153db7 100644
GIT binary patch
literal 8
Pc${NM%FIhFs^kIy3n&7R

literal 8
Pc${NM&PdElPvrst3ey5{

"""


def test_binary_diff(repo: Repository) -> None:
    diff = repo.diff('HEAD', 'HEAD^')
    assert PATCH_BINARY == diff.patch
    diff = repo.diff('HEAD', 'HEAD^', flags=DiffOption.SHOW_BINARY)
    assert PATCH_BINARY_SHOW == diff.patch
    diff = repo.diff(b'HEAD', b'HEAD^')
    assert PATCH_BINARY == diff.patch
    diff = repo.diff(b'HEAD', b'HEAD^', flags=DiffOption.SHOW_BINARY)
    assert PATCH_BINARY_SHOW == diff.patch


def test_binary_delta_is_binary(repo: Repository) -> None:
    diff = repo.diff('HEAD', 'HEAD^')
    for delta in diff.deltas:
        assert delta.is_binary