import pytest
import time
from api_hook_client import ApiHookClient

def test_idle_performance_requirements():
    """
    Requirement: GUI must maintain < 16.6ms frametime on idle.
    This test will fail if the performance is regressed.
    """
    client = ApiHookClient(base_url="http://127.0.0.1:8999")
    
    try:
        # Get multiple samples to be sure
        samples = []
        for _ in range(5):
            perf_data = client.get_performance()
            samples.append(perf_data)
            time.sleep(0.1)
        
        # Parse the JSON metrics
        for sample in samples:
            performance = sample.get('performance', {})
            frame_time = performance.get('last_frame_time_ms', 0.0)
            
            # If frame_time is 0.0, it might mean the app just started and hasn't finished a frame yet
            # or it's not actually running the main loop.
            assert frame_time < 16.6, f"Frame time {frame_time}ms exceeds 16.6ms threshold"

    except Exception as e:
        pytest.fail(f"Failed to verify performance requirements: {e}")

if __name__ == "__main__":
    client = ApiHookClient(base_url="http://127.0.0.1:8999")
    try:
        perf = client.get_performance()
        print(f"Current performance: {perf}")
    except Exception as e:
        print(f"App not running or error: {e}")