import os
from unittest.mock import patch, MagicMock
from pathlib import Path

import pytest
from vrobbler.context_processors import version_info


@pytest.fixture
def mock_request():
    return MagicMock()


class TestVersionInfo:
    def test_returns_version_and_commit(self, mock_request):
        with (
            patch("vrobbler.context_processors.get_version") as mock_get_version,
            patch(
                "vrobbler.context_processors.subprocess.check_output"
            ) as mock_check_output,
        ):
            mock_get_version.return_value = "1.0.0"
            mock_check_output.return_value = b"abc1234"

            result = version_info(mock_request)

            assert result["app_version"] == "1.0.0"
            assert result["git_commit"] == "abc1234"

    def test_uses_env_commit_if_set(self, mock_request):
        with (
            patch.dict(os.environ, {"VROBBLER_COMMIT": "env_commit_hash"}),
            patch("vrobbler.context_processors.get_version") as mock_get_version,
        ):
            mock_get_version.return_value = "1.0.0"

            result = version_info(mock_request)

            assert result["git_commit"] == "env_commit_hash"

    def test_returns_unknown_when_version_fails(self, mock_request):
        with (
            patch("vrobbler.context_processors.get_version") as mock_get_version,
            patch(
                "vrobbler.context_processors.subprocess.check_output"
            ) as mock_check_output,
        ):
            mock_get_version.side_effect = Exception("not found")
            mock_check_output.return_value = b"abc1234"

            result = version_info(mock_request)

            assert result["app_version"] == "unknown"

    def test_returns_unknown_when_git_fails(self, mock_request):
        import subprocess

        with (
            patch("vrobbler.context_processors.get_version") as mock_get_version,
            patch(
                "vrobbler.context_processors.subprocess.check_output"
            ) as mock_check_output,
        ):
            mock_get_version.return_value = "1.0.0"
            mock_check_output.side_effect = subprocess.SubprocessError()

            result = version_info(mock_request)

            assert result["git_commit"] == "unknown"

    def test_returns_unknown_when_git_not_found(self, mock_request):
        import subprocess

        with (
            patch("vrobbler.context_processors.get_version") as mock_get_version,
            patch(
                "vrobbler.context_processors.subprocess.check_output"
            ) as mock_check_output,
        ):
            mock_get_version.return_value = "1.0.0"
            mock_check_output.side_effect = FileNotFoundError()

            result = version_info(mock_request)

            assert result["git_commit"] == "unknown"