import pytest
import time
import sys
import os

# Ensure project root is in path
sys.path.append(os.path.abspath(os.path.join(os.path.dirname(__file__), "..")))

from api_hook_client import ApiHookClient

# Session-wide storage for comparing metrics
_shared_metrics = {}

def test_performance_benchmarking(live_gui: tuple) -> None:
 """
 Collects performance metrics for the current GUI script.
 """
 process, gui_script = live_gui
 client = ApiHookClient()
 # Wait for app to stabilize and render some frames
 time.sleep(3.0)
 # Collect metrics over 5 seconds
 fps_values = []
 cpu_values = []
 frame_time_values = []
 start_time = time.time()
 while time.time() - start_time < 5:
  try:
   perf_data = client.get_performance()
   metrics = perf_data.get('performance', {})
   if metrics:
    fps = metrics.get('fps', 0.0)
    cpu = metrics.get('cpu_percent', 0.0)
    ft = metrics.get('last_frame_time_ms', 0.0)
    if fps > 0:
     fps_values.append(fps)
     cpu_values.append(cpu)
     frame_time_values.append(ft)
   time.sleep(0.1)
  except Exception:
   break
 avg_fps = sum(fps_values) / len(fps_values) if fps_values else 0
 avg_cpu = sum(cpu_values) / len(cpu_values) if cpu_values else 0
 avg_ft = sum(frame_time_values) / len(frame_time_values) if frame_time_values else 0
 _shared_metrics[gui_script] = {
  "avg_fps": avg_fps,
  "avg_cpu": avg_cpu,
  "avg_ft": avg_ft
 }
 print(f"\n[Test] Results for {gui_script}: FPS={avg_fps:.2f}, CPU={avg_cpu:.2f}%, FT={avg_ft:.2f}ms")
 # Absolute minimum requirements
 if avg_fps > 0:
  assert avg_fps >= 30, f"{gui_script} FPS {avg_fps:.2f} is below 30 FPS threshold"
  assert avg_ft <= 33.3, f"{gui_script} Frame time {avg_ft:.2f}ms is above 33.3ms threshold"

def test_performance_baseline_check() -> None:
 """
 Verifies that we have performance metrics for gui_2.py.
 """
 if "gui_2.py" not in _shared_metrics:
  pytest.skip("Metrics for gui_2.py not yet collected.")
 gui2_m = _shared_metrics["gui_2.py"]
 assert gui2_m["avg_fps"] >= 30
 assert gui2_m["avg_ft"] <= 33.3