# -*- coding: utf-8 -*-
from pathlib import Path

import pytest

from pineagents.drivers.capabilities import DriverInvocation
from pineagents.drivers.contracts import CredentialRef, DriverCard, PolicyRule
from pineagents.drivers.credentials.store import AsyncCredentialStore
from pineagents.drivers.handlers.mcp import MCPDriverHandler
from pineagents.drivers.manager import DriverManager
from pineagents.drivers.storage import card_path, dump_card
from tests.integration.driver_mcp_fakes import patch_mcp_runtime_clients


@pytest.mark.asyncio
async def test_env_ref_header_resolves_from_environment_at_runtime(
    tmp_path: Path,
    monkeypatch: pytest.MonkeyPatch,
) -> None:
    patch_mcp_runtime_clients(monkeypatch)
    monkeypatch.setenv("WIND_API_KEY", "ak_real_key_123")
    store = AsyncCredentialStore(tmp_path / "credentials.yaml")
    dump_card(
        DriverCard(
            name="wind",
            protocol="mcp",
            endpoint={
                "transport": "streamable_http",
                "url": "http://127.0.0.1:18080/mcp",
                "headers": {
                    "Authorization": {
                        "source": "credential",
                        "credential": "env_wind_api_key",
                        "field": "value",
                        "format": "Bearer {value}",
                    },
                },
            },
            credentials={
                "env_wind_api_key": CredentialRef(
                    "static",
                    "env:WIND_API_KEY",
                ),
            },
            policy=[PolicyRule(subject="*", effect="allow")],
        ),
        card_path(tmp_path / "drivers", "wind", protocol="mcp"),
    )
    manager = DriverManager(tmp_path / "drivers", store)
    manager.register_handler_type("mcp", MCPDriverHandler)

    await manager.build_drivers()
    capability = next(
        item
        for item in await manager.list_capabilities(kind="tool")
        if item.name == "inspect_headers"
    )
    result = await manager.invoke_capability(
        DriverInvocation(capability.capability_id, {}),
    )

    assert result.ok is True
    assert result.value["headers"]["Authorization"] == "Bearer ak_real_key_123"
    # A rotated env value is reflected without any persisted credential.
    credentials_file = tmp_path / "credentials.yaml"
    on_disk = (
        credentials_file.read_text(encoding="utf-8")
        if credentials_file.is_file()
        else ""
    )
    assert "ak_real_key_123" not in on_disk