"""
  Minimal reproduction of memory leak in extism-py plugin creation/destruction.
  """
  import gc
  import resource
  import platform
  import extism
  def get_memory_mb():
      """Get current RSS memory in MB."""
      rss = resource.getrusage(resource.RUSAGE_SELF).ru_maxrss
      if platform.system() == "Darwin":
          return rss / 1024 / 1024  # bytes to MB
      else:
          return rss / 1024  # KB to MB
  # Minimal WASM module - exports a single empty function
  MINIMAL_WASM = bytes([
      0x00, 0x61, 0x73, 0x6d, 0x01, 0x00, 0x00, 0x00,
      0x01, 0x04, 0x01, 0x60, 0x00, 0x00,
      0x03, 0x02, 0x01, 0x00,
      0x07, 0x08, 0x01, 0x04, 0x74, 0x65, 0x73, 0x74, 0x00, 0x00,
      0x0a, 0x04, 0x01, 0x02, 0x00, 0x0b,
  ])
  def test_memory_leak():
      gc.collect()
      mem_start = get_memory_mb()
      print(f"extism runtime version: {extism.extism_version()}")
      print(f"Memory at start: {mem_start:.2f} MB\n")
      for batch in range(5):
          for _ in range(100):
              plugin = extism.Plugin(MINIMAL_WASM, wasi=False)
              plugin.__del__()  # Explicitly free
              del plugin
          gc.collect()
          mem_now = get_memory_mb()
          iterations = (batch + 1) * 100
          delta = mem_now - mem_start
          print(f"After {iterations} iterations: {mem_now:.2f} MB (delta: {delta:.2f} MB)")
      print("\nExpected: Memory stable after gc")
      print("Actual: Memory grows ~0.2-0.5 MB per iteration")
  if __name__ == "__main__":
      test_memory_leak()

 extism runtime version: 1.9.1
  Memory at start: 14.20 MB
  After 100 iterations: 41.62 MB (delta: 27.42 MB)
  After 200 iterations: 61.81 MB (delta: 47.61 MB)
  After 300 iterations: 82.98 MB (delta: 68.78 MB)
  After 400 iterations: 103.45 MB (delta: 89.25 MB)
  After 500 iterations: 123.73 MB (delta: 109.53 MB)
  Expected: Memory stable after gc
  Actual: Memory grows ~0.2-0.5 MB per iteration