# -*- coding: utf-8 -*-
# Copyright (C) 2023 Ilia Kurochkin <brothermechanic@gmail.com>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
# DESCRIPTION.
# Collecting all parents and reconstruct this hierarhy in bledner.
import logging
import bpy

logger = logging.getLogger(__name__)
logging.basicConfig(level=logging.INFO)


def import_hierarchy(fc_obj, b_obj, scale):
    """FreeCAD object, Blender object, scene scale"""

    if not bpy.data.collections.get('Import Hierarchy'):
        hierarchy_collection = bpy.data.collections.new("Import Hierarchy")
        bpy.context.scene.collection.children.link(hierarchy_collection)
        bpy.context.view_layer.active_layer_collection = \
            bpy.context.view_layer.layer_collection.children['Import Hierarchy']
    else:
        hierarchy_collection = bpy.data.collections['Import Hierarchy']

    obj_parent = fc_obj.getParentGeoFeatureGroup()
    obj_child_name = None
    while obj_parent:
        if hierarchy_collection.objects.get(obj_parent.Label):
            empty = bpy.data.objects[obj_parent.Label]
        else:
            bpy.ops.object.empty_add(
                type='CUBE', radius=0.01, align='WORLD',
                location=(0, 0, 0), rotation=(0, 0, 0))
            empty = bpy.data.objects['Empty']
            empty.name = obj_parent.Label
            placement = obj_parent.Placement
            empty.location = placement.Base.multiply(scale)
            rm = empty.rotation_mode
            if placement.Rotation.Angle:
                empty.rotation_mode = 'QUATERNION'
                q = (placement.Rotation.Q[3],)+placement.Rotation.Q[:3]
                empty.rotation_quaternion = (q)
                empty.rotation_mode = rm
        if not b_obj.parent:
            b_obj.parent = empty
        else:
            bpy.data.objects[obj_child_name].parent = empty
        obj_child_name = obj_parent.Label
        obj_parent = obj_parent.getParentGeoFeatureGroup()
        empty.select_set(False)
        logger.debug('Add parent %s to object %s', empty.name, b_obj.name)