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# Copyright (c) 2012,
#  Sony Pictures Imageworks Inc. and
#  Industrial Light & Magic, a division of Lucasfilm Entertainment Company Ltd.
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import unittest
from alembic.AbcCoreAbstract import *
from alembic.Abc import *
from alembic.AbcGeom import *
from alembic.Util import *
from cubeData import *

# In this test, we export a polygon cube with xform data
# The cube is animated by manipulating the xform transforms
# over time.

# This is the scatch of the file hierarchy.
# Abc
#   |- Xform
#       |- .inherits
#       |- .ops
#       |- .vals
#       |- PolyMesh
#           |- .faceCounts
#           |- .faceIndices
#           |- P
#           |- .selfBnds

# TimeSampling data
tvec = TimeVector()
tvec[:] = [ 1, 2, 3 ]

timePerCycle = 3.0
numSamplesPerCycle = len(tvec)

tst = TimeSamplingType( numSamplesPerCycle, timePerCycle )
ts = TimeSampling( tst, tvec )

class CacheCubeTest2(unittest.TestCase):
    # Test exporting a simple cube quad mesh
    def testExportCubeGeom(self):

        # create the archive
        top = OArchive( 'cube2.abc' ).getTop()
        tsidx = top.getArchive().addTimeSampling(ts)

        # create the top xform
        xform = OXform(top, 'cube1', tsidx)
        xsamp = XformSample()
        xform.getSchema().set(xsamp)

        # the mesh shape
        meshObj = OPolyMesh(xform, 'cube1Shape')
        mesh = meshObj.getSchema()
        mesh_samp = OPolyMeshSchemaSample(points, faceIndices, faceCounts)
        mesh_samp.setSelfBounds(selfBnds)
        mesh.set(mesh_samp)

    # Test importing the exported quad mesh
    def testImportCubeGeom(self):

        top = IArchive( 'cube2.abc' ).getTop()
        self.assertEqual(top.getNumChildren(), 1)

        # xform
        xform = IXform(top, 'cube1')
        self.assertEqual(xform.getName(), 'cube1')
        self.assertEqual(xform.getSchema().getNumSamples(), 1)

        # polymesh
        meshObj = IPolyMesh(xform, 'cube1Shape')
        mesh = meshObj.getSchema()
        self.assertEqual(mesh.getNumSamples(), 1)

        mesh_samp = mesh.getValue(ISampleSelector(0))
        self.assertEqual(mesh_samp.getPositions(), points)
        self.assertEqual(mesh_samp.getFaceCounts(), faceCounts)
        self.assertEqual(mesh_samp.getFaceIndices(), faceIndices)
        self.assertEqual(mesh_samp.getSelfBounds(), selfBnds)