import os
import sys
from pathlib import Path
from typing import Any, Dict

import pytest
from fastapi import status
from fastapi.testclient import TestClient

PROJECT_ROOT = Path(__file__).resolve().parents[1]
if str(PROJECT_ROOT) not in sys.path:
    sys.path.insert(0, str(PROJECT_ROOT))

os.environ.setdefault("APPWRITE_ENDPOINT", "http://localhost/v1")
os.environ.setdefault("APPWRITE_PROJECT_ID", "test-project")
os.environ.setdefault("APPWRITE_API_KEY", "test-key")
os.environ.setdefault("APPWRITE_DATABASE_ID", "test-db")
os.environ.setdefault("APPWRITE_COLLECTION_CARRINHOS_ID", "test-carts")
os.environ.setdefault("APPWRITE_COLLECTION_PEDIDOS_ID", "test-orders")
os.environ.setdefault("APPWRITE_COLLECTION_PRODUTOS_CATALOGO_ID", "test-produtos")
os.environ.setdefault("APPWRITE_COLLECTION_LABORATORIOS_ID", "test-labs")
os.environ.setdefault("APPWRITE_COLLECTION_CATEGORIAS_ID", "test-categorias")
os.environ.setdefault("APPWRITE_COLLECTION_SUBCATEGORIAS_ID", "test-subcat")
os.environ.setdefault("APPWRITE_COLLECTION_PAGAMENTOS_ID", "test-payments")
os.environ.setdefault("APPWRITE_COLLECTION_PRODUTOS_ESTOQUE_ID", "test-produtos-estoque")
os.environ.setdefault("APPWRITE_COLLECTION_PRODUTOS_VENDA_ID", "test-produtos-venda")
os.environ.setdefault("APPWRITE_COLLECTION_USUARIOS_DATA_ID", "test-usuarios-data")
os.environ.setdefault("APPWRITE_COLLECTION_USUARIOS_PERFIL_ID", "test-usuarios-perfil")
os.environ.setdefault("APPWRITE_COLLECTION_USUARIO_EMPRESA_PERFIS_ID", "test-usuario-empresa-perfis")
os.environ.setdefault("APPWRITE_COLLECTION_FATURAS_ID", "test-faturas")
os.environ.setdefault("APPWRITE_COLLECTION_USUARIOS_ID", "test-users")
os.environ.setdefault("APPWRITE_COLLECTION_EMPRESAS_ID", "test-companies")
os.environ.setdefault("APPWRITE_COLLECTION_EMPRESAS_DADOS_ID", "test-companies-data")
os.environ.setdefault("APPWRITE_COLLECTION_EMPRESAS_SOCIOS_ID", "test-empresas-socios")
os.environ.setdefault("APPWRITE_COLLECTION_ENDERECOS_ID", "test-addresses")
os.environ.setdefault("APPWRITE_COLLECTION_ENTREGAS_ID", "test-entregas")
os.environ.setdefault("SECURITY_API_KEY", "")
os.environ.setdefault("JWT_SECRET", "test-secret")
os.environ.setdefault("JWT_ALGORITHM", "HS256")

from src.app.main import app
from src.routers.public import cnpj_router


class MockResponse:
    def __init__(self, status_code: int, json_data: Any) -> None:
        self.status_code = status_code
        self._json_data = json_data

    def json(self) -> Any:
        if isinstance(self._json_data, Exception):
            raise self._json_data
        return self._json_data


def _mock_async_client(response: MockResponse):
    class _Client:
        def __init__(self, *args: Any, **kwargs: Any) -> None:
            self._response = response

        async def __aenter__(self) -> "_Client":
            return self

        async def __aexit__(self, exc_type, exc, tb) -> None:  # pragma: no cover - interface
            return None

        async def get(self, *args: Any, **kwargs: Any) -> MockResponse:
            return self._response

    return _Client


@pytest.fixture()
def client() -> TestClient:
    with TestClient(app) as test_client:
        yield test_client


def test_consultar_cnpj_success(monkeypatch: pytest.MonkeyPatch, client: TestClient) -> None:
    payload: Dict[str, Any] = {
        "status": "OK",
        "cnpj": "27865757000102",
        "nome": "SAVE IN MED COMERCIO DE MEDICAMENTOS LTDA",
    }
    response = MockResponse(status.HTTP_200_OK, payload)
    monkeypatch.setattr(cnpj_router.httpx, "AsyncClient", _mock_async_client(response))

    result = client.get("/public/cnpj/27.865.757/0001-02")

    assert result.status_code == status.HTTP_200_OK
    assert result.json() == payload


def test_consultar_cnpj_invalid_param(client: TestClient) -> None:
    result = client.get("/public/cnpj/1234")
    assert result.status_code == status.HTTP_422_UNPROCESSABLE_ENTITY
    assert result.json()["detail"] == "CNPJ deve conter 14 dígitos numéricos."


def test_consultar_cnpj_not_found(monkeypatch: pytest.MonkeyPatch, client: TestClient) -> None:
    response = MockResponse(status.HTTP_404_NOT_FOUND, {"message": "CNPJ não encontrado"})
    monkeypatch.setattr(cnpj_router.httpx, "AsyncClient", _mock_async_client(response))

    result = client.get("/public/cnpj/27865757000102")

    assert result.status_code == status.HTTP_404_NOT_FOUND
    assert result.json()["detail"] == "CNPJ não encontrado"


def test_consultar_cnpj_rate_limit(monkeypatch: pytest.MonkeyPatch, client: TestClient) -> None:
    response = MockResponse(status.HTTP_429_TOO_MANY_REQUESTS, {"message": "Too Many Requests"})
    monkeypatch.setattr(cnpj_router.httpx, "AsyncClient", _mock_async_client(response))

    result = client.get("/public/cnpj/27865757000102")

    assert result.status_code == status.HTTP_429_TOO_MANY_REQUESTS
    assert result.json()["detail"].startswith("Serviço externo indisponível")