import bpy


def get_parent_collection_names(collection, parent_names):
  for parent_collection in bpy.data.collections:
    if collection.name in parent_collection.children.keys():
      parent_names.append(parent_collection.name)
      get_parent_collection_names(parent_collection, parent_names)
      return


def turn_collection_hierarchy_into_path(obj):
  parent_collection = obj.users_collection[0]
  parent_names      = []
  parent_names.append(parent_collection.name)
  get_parent_collection_names(parent_collection, parent_names)
  parent_names.reverse()
  return '\\'.join(parent_names)

def move_in_fontcollection(obj, fontcollection, scene):
    # print(turn_collection_hierarchy_into_path(obj))
    if scene.collection.objects.find(obj.name) >= 0:
        scene.collection.objects.unlink(obj)
    if fontcollection.objects.find(obj.name) < 0:
        fontcollection.objects.link(obj)
    if fontcollection.objects.find("glyphs") < 0:
        empty = bpy.data.objects.new("glyphs", None)
        empty.empty_display_type = 'PLAIN_AXES'
        fontcollection.objects.link(empty)
    glyphs = fontcollection.objects.get("glyphs")
    if obj.parent != glyphs:
        obj.parent = glyphs