from collections.abc import Generator
from unittest.mock import patch

import pytest
from fastapi.testclient import TestClient

from pygitweb.auth_config import AuthConfig, LocalUser
from pygitweb.main import app
from pygitweb.permissions import PERMISSION_ADD_PROJECTS, permissions_with_defaults

_ADDPROJECTS_AUTH = AuthConfig(
    auth_mode="local",
    local_users=[LocalUser(user="admin", password="secret"), LocalUser(user="viewer", password="secret")],
    oauth_permissions=permissions_with_defaults({
        PERMISSION_ADD_PROJECTS: ["admin"],
    }),
)


@pytest.fixture
def client() -> Generator[TestClient, None, None]:
    with TestClient(app) as c:
        yield c


@pytest.fixture
def addprojects_auth() -> Generator[AuthConfig, None, None]:
    with (
        patch("pygitweb.auth_config.auth_config", _ADDPROJECTS_AUTH),
        patch("pygitweb.auth.auth_config", _ADDPROJECTS_AUTH),
        patch("pygitweb.main.auth_config", _ADDPROJECTS_AUTH),
    ):
        yield _ADDPROJECTS_AUTH


def _login(client: TestClient, username: str) -> None:
    client.post(
        "/login",
        data={"username": username, "password": "secret", "next": "/"},
        follow_redirects=False,
    )


def test_projectnamevalid_open_when_auth_disabled(client: TestClient) -> None:
    from pygitweb.config import settings

    with (
        patch.object(settings, "AUTH", False),
        patch("pygitweb.main.project_visible_in_list", return_value=False),
    ):
        r = client.get("/projectnamevalid", params={"name": "newproj"})
    assert r.status_code == 200


def test_addproject_page_open_when_auth_disabled(client: TestClient) -> None:
    from pygitweb.config import settings

    with patch.object(settings, "AUTH", False):
        r = client.get("/addproject")
    assert r.status_code == 200


def test_projectnamevalid_401_without_login(client: TestClient, addprojects_auth: AuthConfig) -> None:
    from pygitweb.config import settings

    with patch.object(settings, "AUTH", True):
        r = client.get("/projectnamevalid", params={"name": "newproj"})
    assert r.status_code == 401


def test_projectnamevalid_allowed_with_grant(client: TestClient, addprojects_auth: AuthConfig) -> None:
    from pygitweb.config import settings

    with (
        patch.object(settings, "AUTH", True),
        patch("pygitweb.main.project_visible_in_list", return_value=False),
    ):
        _login(client, "admin")
        r = client.get("/projectnamevalid", params={"name": "newproj"})
    assert r.status_code == 200


def test_projectnamevalid_forbidden_without_grant(client: TestClient, addprojects_auth: AuthConfig) -> None:
    from pygitweb.config import settings

    with (
        patch.object(settings, "AUTH", True),
        patch("pygitweb.main.project_visible_in_list", return_value=False),
    ):
        _login(client, "viewer")
        r = client.get("/projectnamevalid", params={"name": "newproj"})
    assert r.status_code == 403


def test_addproject_page_readable_without_grant(client: TestClient, addprojects_auth: AuthConfig) -> None:
    from pygitweb.config import settings

    with patch.object(settings, "AUTH", True):
        _login(client, "viewer")
        r = client.get("/addproject")
    assert r.status_code == 200


def test_addproject_post_forbidden_without_grant(client: TestClient, addprojects_auth: AuthConfig) -> None:
    from pygitweb.config import settings

    with (
        patch.object(settings, "AUTH", True),
        patch("pygitweb.main.project_visible_in_list", return_value=False),
    ):
        _login(client, "viewer")
        r = client.post("/addproject", data={"project_name": "newproj"}, follow_redirects=False)
    assert r.status_code == 403