# SPDX-License-Identifier: LGPL-2.1-or-later

# ***************************************************************************
# *   Copyright (c) 2023 Werner Mayer <wmayer[at]users.sourceforge.net>     *
# *                                                                         *
# *   This file is part of FreeCAD.                                         *
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# *   FreeCAD is free software: you can redistribute it and/or modify it    *
# *   under the terms of the GNU Lesser General Public License as           *
# *   published by the Free Software Foundation, either version 2.1 of the  *
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# *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU      *
# *   Lesser General Public License for more details.                       *
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# ***************************************************************************

__title__ = "BOPTools.BOPFeatures module"
__author__ = "Werner Mayer"
__url__ = "https://www.freecad.org"
__doc__ = "Helper class to create the features for Boolean operations."

import FreeCAD
import Part

class BOPFeatures:
    def __init__(self, doc):
        self.doc = doc

    def make_section(self, inputNames):
        obj = self.doc.addObject("Part::Section", "Section")
        obj.Base = self.doc.getObject(inputNames[0])
        obj.Tool = self.doc.getObject(inputNames[1])
        self.copy_visual_attributes(obj, obj.Base)
        target = self.move_input_objects([obj.Base, obj.Tool])
        if target:
            target.addObject(obj)
        return obj

    def make_cut(self, inputNames):
        obj = self.doc.addObject("Part::Cut", "Cut")
        obj.Base = self.doc.getObject(inputNames[0])
        obj.Tool = self.doc.getObject(inputNames[1])
        self.copy_visual_attributes(obj, obj.Base)
        target = self.move_input_objects([obj.Base, obj.Tool])
        if target:
            target.addObject(obj)
        return obj

    def make_common(self, inputNames):
        obj = self.doc.addObject("Part::Common", "Common")
        obj.Base = self.doc.getObject(inputNames[0])
        obj.Tool = self.doc.getObject(inputNames[1])
        self.copy_visual_attributes(obj, obj.Base)
        target = self.move_input_objects([obj.Base, obj.Tool])
        if target:
            target.addObject(obj)
        return obj

    def make_multi_common(self, inputNames):
        obj = self.doc.addObject("Part::MultiCommon", "Common")
        obj.Shapes = [self.doc.getObject(name) for name in inputNames]
        self.copy_visual_attributes(obj, obj.Shapes[0])
        target = self.move_input_objects(obj.Shapes)
        if target:
            target.addObject(obj)
        return obj

    def make_fuse(self, inputNames):
        obj = self.doc.addObject("Part::Fuse", "Fusion")
        obj.Base = self.doc.getObject(inputNames[0])
        obj.Tool = self.doc.getObject(inputNames[1])
        self.copy_visual_attributes(obj, obj.Base)
        target = self.move_input_objects([obj.Base, obj.Tool])
        if target:
            target.addObject(obj)
        return obj

    def make_multi_fuse(self, inputNames):
        obj = self.doc.addObject("Part::MultiFuse", "Fusion")
        obj.Shapes = [self.doc.getObject(name) for name in inputNames]
        self.copy_visual_attributes(obj, obj.Shapes[0])
        target = self.move_input_objects(obj.Shapes)
        if target:
            target.addObject(obj)
        return obj

    def move_input_objects(self, objects):
        targetGroup = None
        for obj in objects:
            obj.Visibility = False
            parent = obj.getParent()
            if parent:
                parent.removeObject(obj)
                targetGroup = parent
        return targetGroup

    def copy_visual_attributes(self, target, source):
        if target.ViewObject:
            if hasattr(target.ViewObject,"ShapeAppearance") and hasattr(source.ViewObject, "ShapeAppearance"):
                target.ViewObject.ShapeAppearance = source.ViewObject.ShapeAppearance
            displayMode = source.ViewObject.DisplayMode
            src = source
            while displayMode == "Link":
                if getattr(src, "LinkedObject", None):
                    src = src.LinkedObject
                elif getattr(src, "Base", None):
                    # Draft Link array
                    src = src.Base
                else:
                    break
                if not hasattr(src, "ViewObject"):
                    break
                displayMode = src.ViewObject.DisplayMode
            if displayMode in target.ViewObject.getEnumerationsOfProperty("DisplayMode"):
                target.ViewObject.DisplayMode = displayMode
