import uuid
from collections.abc import AsyncIterator

import httpx2
import pytest
from fastapi import FastAPI

from app.api import router
from app.auth import get_settings
from app.config import Settings


@pytest.fixture
async def client() -> AsyncIterator[httpx2.AsyncClient]:
    app = FastAPI()
    app.include_router(router)
    app.dependency_overrides[get_settings] = lambda: Settings(api_key="change-me")
    transport = httpx2.ASGITransport(app=app)
    async with httpx2.AsyncClient(
        transport=transport,
        base_url="http://testserver",
    ) as test_client:
        yield test_client


async def test_get_payment_requires_api_key(client: httpx2.AsyncClient) -> None:
    response = await client.get(f"/api/v1/payments/{uuid.uuid4()}")

    assert response.status_code == 401
    assert response.json() == {"detail": "Invalid or missing API key"}


async def test_get_payment_rejects_wrong_api_key(client: httpx2.AsyncClient) -> None:
    response = await client.get(
        f"/api/v1/payments/{uuid.uuid4()}",
        headers={"X-API-Key": "wrong-key"},
    )

    assert response.status_code == 401


async def test_create_payment_requires_idempotency_key(client: httpx2.AsyncClient) -> None:
    response = await client.post(
        "/api/v1/payments",
        headers={"X-API-Key": "change-me"},
        json={
            "amount": "100.00",
            "currency": "RUB",
            "description": "Test payment",
            "metadata": {},
            "webhook_url": "https://example.com/webhook",
        },
    )

    assert response.status_code == 422
    assert response.json()["detail"][0]["loc"] == ["header", "Idempotency-Key"]


async def test_create_payment_rejects_unsupported_currency(
    client: httpx2.AsyncClient,
) -> None:
    response = await client.post(
        "/api/v1/payments",
        headers={
            "X-API-Key": "change-me",
            "Idempotency-Key": "test-key",
        },
        json={
            "amount": "100.00",
            "currency": "GBP",
            "description": "Test payment",
            "metadata": {},
            "webhook_url": "https://example.com/webhook",
        },
    )

    assert response.status_code == 422