import os
import json
import pytest
from unittest.mock import MagicMock, patch
from datetime import date
from garmin.sync import GarminSync

@pytest.fixture
def mock_client():
    return MagicMock()

@pytest.fixture
def temp_storage(tmp_path):
    return str(tmp_path / "data")

def test_sync_activities(mock_client, temp_storage):
    mock_client.get_activities.return_value = [
        {"activityId": 1, "name": "Running"},
        {"activityId": 2, "name": "Cycling"}
    ]
    
    sync = GarminSync(mock_client, storage_dir=temp_storage)
    count = sync.sync_activities(days=1)
    
    assert count == 2
    assert os.path.exists(os.path.join(temp_storage, "activity_1.json"))
    assert os.path.exists(os.path.join(temp_storage, "activity_2.json"))

def test_load_local_activities(mock_client, temp_storage):
    os.makedirs(temp_storage, exist_ok=True)
    with open(os.path.join(temp_storage, "activity_1.json"), "w") as f:
        json.dump({"activityId": 1}, f)
    
    sync = GarminSync(mock_client, storage_dir=temp_storage)
    activities = sync.load_local_activities()
    
    assert len(activities) == 1
    assert activities[0]["activityId"] == 1

def test_save_activity_no_id(mock_client, temp_storage):
    sync = GarminSync(mock_client, storage_dir=temp_storage)
    sync._save_activity({"name": "No ID"})
    
    assert len(os.listdir(temp_storage)) == 0 if os.path.exists(temp_storage) else True