from __future__ import annotations

import importlib
from collections.abc import AsyncIterator
from pathlib import Path
from typing import Any

import pytest_asyncio
from alembic import command
from httpx import ASGITransport, AsyncClient

cli = importlib.import_module("backup_tool.cli")
config = importlib.import_module("backup_tool.config")
Settings = config.Settings


def make_settings(tmp_path: Path) -> Any:
    key = tmp_path / "master.key"
    key.write_bytes(b"m2-test-master-key-material-32-bytes-minimum")
    key.chmod(0o600)
    data = tmp_path / "data"
    repositories = tmp_path / "repositories"
    sources = tmp_path / "sources"
    restores = tmp_path / "restores"
    for path in (data, repositories, sources, restores):
        path.mkdir()
    return Settings(
        data_dir=data,
        database_url=f"sqlite+aiosqlite:///{data / 'metadata.db'}",
        repository_roots=(repositories,),
        local_source_roots=(sources,),
        restore_roots=(restores,),
        master_key_file=key,
        public_base_url="https://testserver",
    )


@pytest_asyncio.fixture
async def app_client(tmp_path: Path) -> AsyncIterator[tuple[AsyncClient, Any]]:
    settings = make_settings(tmp_path)
    command.upgrade(cli.build_alembic_config(settings), "head")
    app_module = importlib.import_module("backup_tool.api.app")
    app = app_module.create_app(settings)
    async with AsyncClient(
        transport=ASGITransport(app=app), base_url="https://testserver"
    ) as client:
        yield client, settings
    await app.state.engine.dispose()