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

import unittest

import FreeCAD as App


class ColorTransparencyTest(unittest.TestCase):

    def setUp(self):
        self._doc = App.newDocument()
        self._pg = App.ParamGet("User parameter:BaseApp/Preferences/View")
        self._backup_default_transparency = self._pg.GetInt("DefaultShapeTransparency")
        self._backup_default_shapecolor = self._pg.GetUnsigned("DefaultShapeColor")

    def tearDown(self):
        App.closeDocument(self._doc.Name)
        self._pg.SetInt("DefaultShapeTransparency", self._backup_default_transparency)
        self._pg.SetUnsigned("DefaultShapeColor", self._backup_default_shapecolor)

    def test_default_shape_transparency(self):
        """
        related: https://github.com/FreeCAD/FreeCAD/pull/11866
        related: https://github.com/FreeCAD/FreeCAD/pull/11586
        """
        transparency = 70
        self._pg.SetInt("DefaultShapeTransparency", transparency)
        obj = self._doc.addObject("Part::Box")
        assert obj.ViewObject.Transparency == transparency
        obj.ViewObject.ShapeAppearance[0].DiffuseColor = (0.5, 0.0, 0.0)

        self.assertEqual(
            obj.ViewObject.Transparency,
            transparency,
            "transparency was unexpectedly changed to {} when changing the color.".format(
                obj.ViewObject.Transparency
            ),
        )

    def test_default_shape_color(self):
        """
        related: https://github.com/FreeCAD/FreeCAD/pull/11866
        """

        """
        This test isn't currently valid as it draws from the hard coded default material.

        The preference editor doesn't allow for setting transparencies. The default value
        of 0 corresponds to a fully transparent color, which is not desirable. It changes
        the transparency when loading to 1.0
        """

        self._pg.SetUnsigned("DefaultShapeColor", 0xFF000000)  # red
        obj = self._doc.addObject("Part::Box")

        self.assertEqual(
            obj.ViewObject.ShapeAppearance[0].DiffuseColor,
            (1.0, 0.0, 0.0, 1.0),
            "default shape color was not set correctly",
        )
        self.assertEqual(
            obj.ViewObject.ShapeMaterial.DiffuseColor,
            (1.0, 0.0, 0.0, 1.0),
            "default material color was not set correctly",
        )

    def test_app_plane_transparency(self):
        """
        related: https://github.com/FreeCAD/FreeCAD/pull/12064
        """
        self._pg.SetInt("DefaultShapeTransparency", 70)
        obj = self._doc.addObject("App::Origin")
        t = self._doc.findObjects("App::Plane")[0].ViewObject.Transparency

        self.assertEqual(t, 0, "transparency of App::Plane object is {} instead of 0".format(t))