from __future__ import annotations

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

import pygit2
import pytest
from fastapi.testclient import TestClient

from pygitweb.auth_config import AuthConfig, LocalUser
from pygitweb.config import settings
from pygitweb.main import app
from pygitweb.permissions import PermissionsMap


def _seed_repo(repo_dir: Path) -> None:
    pygit2.init_repository(str(repo_dir), bare=False)
    (repo_dir / "README.md").write_text("hello\n", encoding="utf-8")


@pytest.fixture
def hidden_projects_env(tmp_path: Path) -> Generator[dict[str, str], None, None]:
    root = tmp_path / "project-list"
    repo_dir = root / "alpha"
    repo_dir.mkdir(parents=True)
    _seed_repo(repo_dir)
    auth = AuthConfig(
        auth_mode="local",
        local_users=[LocalUser(user="admin", password="secret")],
        oauth_permissions=PermissionsMap.model_validate({"*": []}),
    )
    with (
        patch.object(settings, "PROJECTROOT", str(root)),
        patch.object(settings, "PROJECTS_LIST", str(root)),
        patch.object(settings, "PROJECT_MAXDEPTH", 2),
        patch.object(settings, "STRICT_EXPORT", False),
        patch.object(settings, "EXPORT_OK", ""),
        patch.object(settings, "LIST_ALL", True),
        patch.object(settings, "AUTH", True),
        patch("pygitweb.auth_config.auth_config", auth),
        patch("pygitweb.auth.auth_config", auth),
        patch("pygitweb.main.auth_config", auth),
    ):
        yield {"root": str(root)}


def test_home_page_shows_auth_visibility_notice_when_no_readable_projects(
    hidden_projects_env: dict[str, str],
) -> None:
    del hidden_projects_env
    client = TestClient(app)
    resp = client.get("/")
    assert resp.status_code == 200
    assert "No projects are visible" in resp.text
    assert "Sign in or ask an administrator for repository access." in resp.text
    assert 'href="/login?next=/"' in resp.text
    assert "<table" not in resp.text