import pytest
from fastapi.testclient import TestClient
from unittest.mock import patch
from ea_chatbot.api.main import app
from ea_chatbot.history.models import User
from ea_chatbot.api.utils import create_access_token

client = TestClient(app)

@pytest.fixture
def mock_user():
    return User(
        id="user-123",
        username="test@example.com",
        display_name="Test User",
        password_hash="hashed_password"
    )

def test_v1_prefix():
    """Test that routes are prefixed with /api/v1."""
    # This should now be 404
    response = client.get("/auth/me")
    assert response.status_code == 404
    
    # This should be 401 (unauthorized) instead of 404
    response = client.get("/api/v1/auth/me")
    assert response.status_code == 401

def test_login_sets_cookie():
    """Test that login sets the access_token cookie."""
    with patch("ea_chatbot.api.routers.auth.history_manager") as mock_hm:
        mock_hm.authenticate_user.return_value = User(id="1", username="test@example.com")
        
        response = client.post(
            "/api/v1/auth/login",
            data={"username": "test@example.com", "password": "password123"}
        )
        
        assert response.status_code == 200
        assert "access_token" in response.cookies
        
        # Check for HttpOnly in Set-Cookie header
        set_cookie = response.headers.get("set-cookie", "")
        assert "access_token" in set_cookie
        assert "HttpOnly" in set_cookie

def test_register_sets_cookie():
    """Test that register sets the access_token cookie."""
    with patch("ea_chatbot.api.routers.auth.history_manager") as mock_hm:
        mock_hm.get_user.return_value = None
        mock_hm.create_user.return_value = User(id="1", username="new@example.com", display_name="New")
        
        response = client.post(
            "/api/v1/auth/register",
            json={"email": "new@example.com", "password": "password123", "display_name": "New"}
        )
        
        assert response.status_code == 201
        assert "access_token" in response.cookies

def test_auth_via_cookie():
    """Test that protected routes work with the access_token cookie."""
    token = create_access_token(data={"sub": "123"})
    
    with patch("ea_chatbot.api.dependencies.history_manager") as mock_hm:
        mock_hm.get_user_by_id.return_value = User(id="123", username="test@example.com", display_name="Test")
        
        # Pass token via cookie instead of header
        client.cookies.set("access_token", token)
        response = client.get("/api/v1/auth/me")
        
        assert response.status_code == 200
        assert response.json()["email"] == "test@example.com"

def test_logout_clears_cookie():
    """Test that logout endpoint clears the cookie."""
    response = client.post("/api/v1/auth/logout")
    assert response.status_code == 200
    # Cookie should be expired/empty
    cookie = response.cookies.get("access_token")
    assert not cookie or cookie == ""

def test_oidc_callback_redirects_with_cookie():
    """Test that OIDC callback sets cookie and redirects."""
    with patch("ea_chatbot.api.routers.auth.oidc_client") as mock_oidc, \
         patch("ea_chatbot.api.routers.auth.OIDCSession.decrypt") as mock_decrypt, \
         patch("ea_chatbot.api.routers.auth.history_manager") as mock_hm:
        
        mock_decrypt.return_value = {
            "state": "test_state",
            "nonce": "test_nonce",
            "code_verifier": "test_verifier"
        }
        mock_oidc.exchange_code_for_token.return_value = {"id_token": "fake_id_token"}
        mock_oidc.validate_id_token.return_value = {"email": "sso@example.com", "name": "SSO User"}
        mock_hm.sync_user_from_oidc.return_value = User(id="sso-123", username="sso@example.com", display_name="SSO User")
        
        # Set the session cookie
        client.cookies.set("oidc_session", "fake_token")
        
        # Follow_redirects=False to catch the 302
        response = client.get("/api/v1/auth/oidc/callback?code=some-code&state=test_state", follow_redirects=False)
        
        assert response.status_code == 302
        assert "access_token" in response.cookies
        # Should redirect to FRONTEND_URL (default http://localhost:5173)
        assert "http://localhost:5173" in response.headers["location"]