from datetime import date
from unittest.mock import MagicMock, patch

import pytest

from garmin.client import GarminClient


@pytest.fixture
def mock_garmin():
    with patch("garmin.client.Garmin") as mock:
        yield mock

@pytest.fixture
def mock_sso():
    with patch("garmin.client.garth_login") as mock_login, \
         patch("garmin.client.resume_login") as mock_resume_login:
        yield mock_login, mock_resume_login

def test_client_init():
    client = GarminClient(email="test@example.com", password="password")
    assert client.email == "test@example.com"
    assert client.password == "password"

def test_login_success_force(mock_sso, mock_garmin):
    mock_login, _ = mock_sso
    mock_login.return_value = (MagicMock(), MagicMock())
    client = GarminClient(email="test@example.com", password="password")
    
    with patch("os.path.exists", return_value=False):
        assert client.login(force_login=True) == "SUCCESS"
        mock_login.assert_called_once()

def test_login_mfa_required(mock_sso):
    mock_login, _ = mock_sso
    mock_login.return_value = ("needs_mfa", {"some": "state"})
    
    client = GarminClient(email="test@example.com", password="password")
    with patch("os.path.exists", return_value=False):
        assert client.login(force_login=True) == "MFA_REQUIRED"
        assert GarminClient._temp_client_state == {"some": "state"}

def test_login_mfa_complete(mock_sso, mock_garmin):
    _, mock_resume_login = mock_sso
    mock_client = MagicMock()
    mock_client.oauth1_token = MagicMock()
    state = {"some": "state", "client": mock_client}
    GarminClient._temp_client_state = state
    
    # resume_login should return (oauth1, oauth2)
    mock_resume_login.return_value = (MagicMock(), MagicMock())
    
    client = GarminClient(email="test@example.com", password="password")
    assert client.login(mfa_code="123456") == "SUCCESS"
    mock_resume_login.assert_called_with(state, "123456")
    assert GarminClient._temp_client_state is None

def test_login_resume_success(mock_garmin):
    client = GarminClient(email="test@example.com", password="password")
    inst = MagicMock()
    mock_garmin.return_value = inst
    
    # Mocking both exists AND getsize to ensure we enter the resume block
    with patch("os.path.exists", return_value=True), \
         patch("os.path.getsize", return_value=100):
        assert client.login() == "SUCCESS"
        inst.login.assert_called_with(tokenstore=client.token_store)

def test_login_resume_fail_falls_back(mock_garmin, mock_sso):
    mock_login, _ = mock_sso
    mock_login.return_value = (MagicMock(), MagicMock())
    
    inst = MagicMock()
    inst.login.side_effect = Exception("Resume fail")
    mock_garmin.return_value = inst
    
    client = GarminClient(email="test", password="test")
    with patch("os.path.exists", return_value=True), \
         patch("os.path.getsize", return_value=100), \
         patch("os.remove"):
        # Without force_login=True, it should fail if resume fails
        assert client.login() == "FAILURE"

def test_login_resume_fail_force_retries(mock_garmin, mock_sso):
    mock_login, _ = mock_sso
    mock_login.return_value = (MagicMock(), MagicMock())
    
    inst1 = MagicMock()
    inst1.login.side_effect = Exception("Resume fail")
    inst2 = MagicMock()
    # inst2 needs to return None or something to not throw
    mock_garmin.side_effect = [inst1, inst2]
    
    client = GarminClient(email="test", password="test")
    with patch("os.path.exists", return_value=True), \
         patch("os.path.getsize", return_value=100), \
         patch("os.remove"):
        assert client.login(force_login=True) == "SUCCESS"
        assert mock_login.called

def test_get_activities_success(mock_garmin):
    mock_instance = mock_garmin.return_value
    mock_instance.get_activities_by_date.return_value = [{"activityId": 123}]
    
    client = GarminClient()
    client.client = mock_instance
    
    activities = client.get_activities(date(2023, 1, 1), date(2023, 1, 2))
    assert activities == [{"activityId": 123}]