from __future__ import annotations

import sys

from pathlib import Path
from typing import TYPE_CHECKING

import pytest

from poetry.utils.env import MockEnv


if TYPE_CHECKING:
    from cleo.testers.command_tester import CommandTester
    from pytest_mock import MockerFixture

    from tests.types import CommandTesterFactory


@pytest.fixture(autouse=True)
def setup(mocker: MockerFixture) -> None:
    mocker.patch(
        "poetry.utils.env.EnvManager.get",
        return_value=MockEnv(
            path=Path("/prefix"), base=Path("/base/prefix"), is_venv=True
        ),
    )


@pytest.fixture
def tester(command_tester_factory: CommandTesterFactory) -> CommandTester:
    return command_tester_factory("env info")


def test_env_info_displays_complete_info(tester: CommandTester):
    tester.execute()

    expected = f"""
Virtualenv
Python:         3.7.0
Implementation: CPython
Path:           {Path('/prefix')}
Executable:     {sys.executable}
Valid:          True

System
Platform:   darwin
OS:         posix
Python:     {'.'.join(str(v) for v in sys.version_info[:3])}
Path:       {Path('/base/prefix')}
Executable: python
"""

    assert tester.io.fetch_output() == expected


def test_env_info_displays_path_only(tester: CommandTester):
    tester.execute("--path")
    expected = str(Path("/prefix")) + "\n"
    assert tester.io.fetch_output() == expected


def test_env_info_displays_executable_only(tester: CommandTester):
    tester.execute("--executable")
    expected = str(sys.executable) + "\n"
    assert tester.io.fetch_output() == expected
