import pytest
import httpx
import os
from dotenv import load_dotenv

# Load environment variables from .env file
load_dotenv()

# Base URL for the FastAPI application
BASE_URL = "http://localhost:7864"

# Supabase credentials from .env
SUPABASE_URL = os.getenv("SUPABASE_URL")
SUPABASE_ANON_KEY = os.getenv("SUPABASE_ANON_KEY")
SUPABASE_SERVICE_ROLE_KEY = os.getenv("SUPABASE_SERVICE_ROLE_KEY")

# Test user credentials
TEST_EMAIL = "test_user@example.com"
TEST_PASSWORD = "test_password"

# Ensure Supabase environment variables are set
if not all([SUPABASE_URL, SUPABASE_ANON_KEY, SUPABASE_SERVICE_ROLE_KEY]):
    pytest.skip("Supabase environment variables not set. Skipping tests.", allow_module_level=True)

@pytest.fixture(scope="module")
def client():
    """Provides a test client for the FastAPI application."""
    # In a real scenario, you might run the app in a separate process
    # or use TestClient from fastapi.testclient.
    # For this automated test, we assume the app is running at BASE_URL.
    with httpx.Client(base_url=BASE_URL) as client:
        yield client

@pytest.fixture(scope="module")
def auth_headers(client):
    """Registers and logs in a test user, returning auth headers."""
    # 1. Register user
    signup_data = {"email": TEST_EMAIL, "password": TEST_PASSWORD}
    response = client.post("/api/auth/signup", json=signup_data)
    if response.status_code == 400 and "User already registered" in response.text:
        print(f"User {TEST_EMAIL} already registered. Proceeding with login.")
    elif response.status_code != 200:
        response.raise_for_status() # Raise for other signup errors

    # 2. Login user
    login_data = {"email": TEST_EMAIL, "password": TEST_PASSWORD}
    response = client.post("/api/auth/login", json=login_data)
    response.raise_for_status()
    token = response.json()["access_token"]
    return {"Authorization": f"Bearer {token}"}

def test_signup_and_login(client):
    """Tests user registration and login."""
    # Ensure a unique email for signup test if running independently
    unique_email = f"test_user_{os.urandom(4).hex()}@example.com"
    signup_data = {"email": unique_email, "password": TEST_PASSWORD}
    response = client.post("/api/auth/signup", json=signup_data)
    assert response.status_code == 200 or (response.status_code == 400 and "User already registered" in response.text)

    login_data = {"email": unique_email, "password": TEST_PASSWORD}
    response = client.post("/api/auth/login", json=login_data)
    response.raise_for_status()
    assert "access_token" in response.json()

def test_generate_api_key(client, auth_headers):
    """Tests API key generation."""
    response = client.post("/api/user/generate-api-key", headers=auth_headers)
    response.raise_for_status()
    assert "api_key" in response.json()

def test_get_api_keys(client, auth_headers):
    """Tests fetching API keys."""
    response = client.get("/api/user/api-keys", headers=auth_headers)
    response.raise_for_status()
    assert isinstance(response.json(), list)

def test_get_proxy_data(client, auth_headers):
    """Tests retrieval of proxy data."""
    response = client.get("/api/proxies", headers=auth_headers)
    response.raise_for_status()
    assert isinstance(response.json(), list)
    # Optionally, assert on the structure of the returned proxy data
    # For example:
    # if response.json():
    #     assert "ip_address" in response.json()[0]
    #     assert "port" in response.json()[0]