from pathlib import Path
import os, traceback
import FreeCAD as A, Part
R=Path(r'C:\projects\wheel');O=R/'models'/'switch_2020_concept'
ok=False
try:
 d=A.openDocument(str(O/'Assembly.FCStd'));d.recompute()
 names=['SwitchCross2020','SwitchAngleA','SwitchAngleB','SwitchCrossJoint0','SwitchCrossJoint1']
 lines=[]
 for name in names:
  o=d.getObject(name);lines.append('%s valid=%s volume=%.6f'%(name,o.Shape.isValid(),o.Shape.Volume))
  assert not o.Shape.isNull() and o.Shape.isValid()
 A.closeDocument(d.Name)
 s=Part.read(str(O/'Assembly.step'))
 assert not s.isNull() and s.isValid()
 lines.append('STEP valid=%s solids=%d'%(s.isValid(),len(s.Solids)))
 (O/'validation.txt').write_text('\n'.join(lines)+'\n',encoding='utf8');ok=True
except Exception:(O/'VERIFY_ERROR.txt').write_text(traceback.format_exc(),encoding='utf8')
finally:os._exit(0 if ok else 1)