from pathlib import Path
import os

import FreeCAD as App
import Import
import ImportGui

#script_folder = os.path.dirname(__file__)
#project_folder = os.path.realpath(script_folder + '/..')
project_folder = os.getcwd()
output_folder = project_folder + '-STEP'

def convert_file(file_name, output_format):
	doc = App.open(project_folder + '/' + file_name)
	
	root_objects = []
	main_object = None
	
	#print("document: " + doc.Name)
	for obj in doc.Objects:
		if len(obj.Parents) == 0:
			#print(obj.Label)
			root_objects.append(obj)
			if obj.Label == doc.Name:
				main_object = obj
	
	if main_object is None and len(root_objects) == 1:
		main_object = root_objects[0]
	
	if main_object is None:
		raise Exception("Can't find main object in file " + file_name + " (found " + str(len(root_objects)) + " root object(s), none named like the document " + doc.Name + ")")
		
	secondary_objects = []
	code_obj = doc.getObjectsByLabel('Code_Tube_Draft')
	if len(code_obj) == 1:
		code_obj = code_obj[0]
		#code_obj.Label = 'Code_Tube'
		#secondary_objects.append(code_obj)
		
		# engrave code on tube
		code_pocket = main_object.newObjectAt('PartDesign::Pocket','Pocket', [code_obj])
		code_pocket.Profile = code_obj
		code_pocket.Length = 0.2
		code_pocket.recompute()
		main_object.recompute()
		
	if len(secondary_objects) > 0:
		group = doc.addObject('App::Part', 'Groupe')
		group.addObject(main_object)
		for obj in secondary_objects:
			group.addObject(obj)
		main_object = group
		
	output_path = output_folder + '/' + os.path.dirname(file_name) + '/' + Path(file_name).stem + '.' + output_format
	output_dir = os.path.dirname(output_path)
	if not os.path.exists(output_dir):
		os.makedirs(output_dir)
	
	Import.export([main_object], output_path)
	
	# close all documents
	while len(FreeCAD.listDocuments().values()) > 0:
		FreeCAD.closeDocument(list(FreeCAD.listDocuments().values())[0].Name)

def convert_assembly(file_name, output_format):
	print(file_name)

	doc = App.open(project_folder + '/' + file_name)
	
	root_objects = []
	main_object = None
	
	# remove all objects that are not visible, or not in the TypeId whitelist, because we don't want to export those
	need_check_objects = True
	while need_check_objects:
		need_check_objects = False
		for obj in doc.Objects:
			if not obj.Visibility or obj.TypeId not in ['Part::Feature', 'Part::FeaturePython', 'PartDesign::Body', 'Part::Mirroring', 'Part::Cut', 'Part::Part2DObjectPython', 'Part::MultiFuse', 'Part::Loft', 'Part::Torus', 'Part::Cylinder', 'App::DocumentObjectGroup', 'App::Part', 'App::Link']:
				#print('removing ' + obj.Name + ' ('+obj.Label+')')
				doc.removeObject(obj.Name)
				need_check_objects = True
				break
	
	for obj in doc.Objects:
		if len(obj.Parents) == 0:
			#print(obj.Label)
			root_objects.append(obj)
			if obj.Label == doc.Name:
				main_object = obj
	
	if main_object is None and len(root_objects) == 1:
		main_object = root_objects[0]
	
	if main_object is None:
		raise Exception("Can't find main assembly in file " + file_name + " (found " + str(len(root_objects)) + " root object(s), none named like the document " + doc.Name + ")")
		
	output_path = output_folder + '/' + os.path.dirname(file_name) + '/' + Path(file_name).stem + '.' + output_format
	output_dir = os.path.dirname(output_path)
	if not os.path.exists(output_dir):
		os.makedirs(output_dir)
	
	ImportGui.export([main_object], output_path)
	
	# close all documents
	while len(FreeCAD.listDocuments().values()) > 0:
		FreeCAD.closeDocument(list(FreeCAD.listDocuments().values())[0].Name)

folders = [
	'chaudronnerie',
	'tubes'
]

for folder in folders:
	files = os.listdir(project_folder + '/' + folder)
	for source_file in files:
		if not source_file.endswith('.FCStd'): continue
		source_path = folder + '/' + source_file
		print(source_path)
		convert_file(source_path, 'step')

convert_assembly('vheliotech.FCStd', 'step')

# exit FreeCAD
FreeCADGui.getMainWindow().close()