# ***************************************************************************
# *                                                                         *
# *   Copyright (c) 2019 Werner Mayer <wmayer[at]users.sourceforge.net>     *
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# *   This program is free software; you can redistribute it and/or modify  *
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# *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
# *   GNU Library General Public License for more details.                  *
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# *   You should have received a copy of the GNU Library General Public     *
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# *                                                                         *
# ***************************************************************************

__title__ = "BasicShapes.Shapes"
__author__ = "Werner Mayer"
__url__ = "http://www.freecad.org"
__doc__ = "Basic shapes"


import FreeCAD
import Part


def makeTube(outerRadius, innerRadius, height):
    outer_cylinder = Part.makeCylinder(outerRadius, height)
    shape = outer_cylinder
    if innerRadius > 0 and innerRadius < outerRadius:
        inner_cylinder = Part.makeCylinder(innerRadius, height)
        shape = outer_cylinder.cut(inner_cylinder)
    return shape


class TubeFeature:
    def __init__(self, obj):
        obj.Proxy = self
        obj.addProperty("App::PropertyLength","OuterRadius","Tube","Outer radius").OuterRadius = 5.0
        obj.addProperty("App::PropertyLength","InnerRadius","Tube","Inner radius").InnerRadius = 2.0
        obj.addProperty("App::PropertyLength","Height","Tube", "Height of the tube").Height = 10.0
        obj.addExtension("Part::AttachExtensionPython")

    def execute(self, fp):
        if fp.InnerRadius >= fp.OuterRadius:
            raise ValueError("Inner radius must be smaller than outer radius")
        fp.Shape = makeTube(fp.OuterRadius, fp.InnerRadius, fp.Height)


def addTube(doc, name="Tube"):
    """addTube(document, [name]): adds a tube object"""

    obj = doc.addObject("Part::FeaturePython", name)
    TubeFeature(obj)
    if FreeCAD.GuiUp:
        from . import ViewProviderShapes
        ViewProviderShapes.ViewProviderTube(obj.ViewObject)
    return obj