# ***************************************************************************
# *   Copyright (c) 2013 Yorik van Havre <yorik@uncreated.net>              *
# *   Copyright (c) 2019 Eliud Cabrera Castillo <e.cabrera-castillo@tum.de> *
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"""Unit tests for the Draft Workbench, SVG import and export tests."""
## @package test_svg
# \ingroup drafttests
# \brief Unit tests for the Draft Workbench, SVG import and export tests.

## \addtogroup drafttests
# @{
import os
import unittest

import FreeCAD as App
import Draft
import drafttests.auxiliary as aux

from draftutils.messages import _msg


class DraftSVG(unittest.TestCase):
    """Test reading and writing of SVGs with Draft."""

    def setUp(self):
        """Set up a new document to hold the tests.

        This is executed before every test, so we create a document
        to hold the objects.
        """
        aux.draw_header()
        self.doc_name = self.__class__.__name__
        if App.ActiveDocument:
            if App.ActiveDocument.Name != self.doc_name:
                App.newDocument(self.doc_name)
        else:
            App.newDocument(self.doc_name)
        App.setActiveDocument(self.doc_name)
        self.doc = App.ActiveDocument
        _msg("  Temporary document '{}'".format(self.doc_name))

    def test_read_svg(self):
        """Read an SVG file and import its elements as Draft objects."""
        operation = "importSVG.import"
        _msg("  Test '{}'".format(operation))
        _msg("  This test requires an SVG file to read.")

        file = 'Mod/Draft/drafttest/test.svg'
        in_file = os.path.join(App.getResourceDir(), file)
        _msg("  file={}".format(in_file))
        _msg("  exists={}".format(os.path.exists(in_file)))

        Draft.import_svg = aux.fake_function
        obj = Draft.import_svg(in_file)
        self.assertTrue(obj, "'{}' failed".format(operation))

    def test_export_svg(self):
        """Create some figures and export them to an SVG file."""
        operation = "importSVG.export"
        _msg("  Test '{}'".format(operation))

        file = 'Mod/Draft/drafttest/out_test.svg'
        out_file = os.path.join(App.getResourceDir(), file)
        _msg("  file={}".format(out_file))
        _msg("  exists={}".format(os.path.exists(out_file)))

        Draft.export_svg = aux.fake_function
        obj = Draft.export_svg(out_file)
        self.assertTrue(obj, "'{}' failed".format(operation))

    def test_get_svg_from_arch_space_with_zero_vector(self):
        """Try to get a svg string from an Arch Space with a zero-vector as direction."""
        import Part
        import Arch
        import Draft

        sb = Part.makeBox(1,1,1)
        b = App.ActiveDocument.addObject('Part::Feature','Box')
        b.Shape = sb

        s = Arch.makeSpace(b)
        App.ActiveDocument.recompute()

        try:
            Draft.get_svg(s, direction=App.Vector(0,0,0))
        except AttributeError as err:
            self.fail("Cryptic exception thrown: {}".format(err))
        except ValueError as err:
            App.Console.PrintLog("Exception thrown, OK: {}".format(err))
        else:
            self.fail("no exception thrown")

    def tearDown(self):
        """Finish the test.

        This is executed after each test, so we close the document.
        """
        App.closeDocument(self.doc_name)

## @}