from fastapi.testclient import TestClient
from backend.main import app

client = TestClient(app)


def authenticate():
    # Simulate login to obtain token
    response = client.post(
        "/auth/login", json={"username": "testuser", "password": "securepassword"}
    )
    assert response.status_code == 200
    return response.json()["access_token"]


def test_create_contact_success():
    # Authenticate and attach token to headers
    token = authenticate()
    headers = {"Authorization": f"Bearer {token}"}

    response = client.post(
        "/protected/contacts",
        headers=headers,
        json={
            "pgroups": "p20001",
            "firstname": "John",
            "lastname": "Rambo",
            "email": "john.rambo@example.com",
            "phone_number": "+000000000",
        },
    )
    assert response.status_code == 201
    json_response = response.json()
    assert json_response["firstname"] == "John"
    assert json_response["lastname"] == "Rambo"
    assert json_response["email"] == "john.rambo@example.com"


def test_create_contact_unauthorized():
    # Omit Authorization header to simulate unauthorized access
    response = client.post(
        "/protected/contacts",
        json={
            "pgroups": "p20001",
            "firstname": "John",
            "lastname": "Rambo",
            "email": "john.rambo@example.com",
            "phone_number": "+000000000",
        },
    )
    assert response.status_code == 401
    assert response.json()["detail"] == "Not authenticated"


def test_create_contact_already_exists():
    # Ensure that the route fails gracefully if contact exists
    client.post(
        "/contact",
        json={
            "pgroups": "p20001",
            "firstname": "John",
            "lastname": "Rambo",
            "email": "john.rambo@example.com",
            "phone_number": "+000000000",
        },
    )
    response = client.post(
        "/contact",
        json={
            "pgroups": "p20001",
            "firstname": "John",
            "lastname": "Rambo",
            "email": "john.rambo@example.com",
            "phone_number": "+000000000",
        },
    )
    assert response.status_code == 400
    assert (
        response.json()["detail"]
        == "This contact already exists in the provided pgroup."
    )


def test_get_active_contacts():
    # Seed with some test data
    client.post(
        "/contact",
        json={
            "pgroups": "p20001",
            "firstname": "John",
            "lastname": "Rambo",
            "email": "john.rambo@example.com",
            "phone_number": "+000000000",
        },
    )

    response = client.get("/contacts", params={"active_pgroup": "p20001"})
    assert response.status_code == 200
    json_response = response.json()
    assert isinstance(json_response, list)
    assert json_response[0]["firstname"] == "John"
    assert json_response[0]["lastname"] == "Rambo"


def test_get_contacts_invalid_pgroup():
    response = client.get("/contacts", params={"active_pgroup": "invalid_pgroup"})
    assert response.status_code == 400
    assert response.json()["detail"] == "Invalid pgroup provided."


def test_update_contact_success():
    # Create a contact first
    contact = client.post(
        "/contact",
        json={
            "pgroups": "p20001",
            "firstname": "John",
            "lastname": "Rambo",
            "email": "john.rambo@example.com",
            "phone_number": "+000000000",
        },
    ).json()

    response = client.put(
        f"/contacts/{contact['id']}",
        json={
            "firstname": "Johnny",
            "lastname": "Ramboski",
            "pgroups": "p20001",
        },
    )
    assert response.status_code == 200
    json_response = response.json()
    assert json_response["firstname"] == "Johnny"
    assert json_response["lastname"] == "Ramboski"


def test_delete_contact():
    # Create a contact first
    contact = client.post(
        "/contact",
        json={
            "pgroups": "p20001",
            "firstname": "John",
            "lastname": "Rambo",
            "email": "john.rambo@example.com",
            "phone_number": "+000000000",
        },
    ).json()

    response = client.delete(f"/contacts/{contact['id']}")
    assert response.status_code == 204