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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 imath import *
from alembic.AbcCoreAbstract import *
from alembic.Abc import *
from alembic.AbcGeom import *
from alembic.AbcMaterial import *


kFacevaryingScope = GeometryScope.kFacevaryingScope
class CameraTest(unittest.TestCase):
    def testMaterialExport(self):
        """write an oarchive with a material in it"""

        materials = OObject( OArchive( 'material.abc' ).getTop() , 'materials' )
        matObj = OMaterial( materials, "material1" )
        mat = matObj.getSchema()
        self.assertTrue(materials.valid())
        self.assertTrue(materials)
        self.assertTrue(matObj)
        self.assertTrue(matObj.valid())
        self.assertTrue(mat)
        self.assertTrue(mat.valid())


        mat.setShader( 'prman', 'surface', 'paintedplastic' )
        mat.setShader( 'prman', 'displacement', 'knobby' )

        mat.setShader( 'arnold', 'surface', 'paintedplastic' )

        prop = OFloatProperty(
            mat.getShaderParameters( 'prman', 'surface' ), 'Kd' )
        prop.setValue( 0.5 )

        prop = OStringProperty(
            mat.getShaderParameters( 'prman', 'surface' ), 'texname' )
        prop.setValue( 'taco' )

    def testMaterialImport(self):
        """read an iarchive with a material in it"""

        materials = IObject( IArchive( 'material.abc' ).getTop() , 'materials' )
        matObj = IMaterial( materials, "material1" )
        mat = matObj.getSchema()
        self.assertTrue(materials.valid())
        self.assertTrue(matObj.valid())
        self.assertTrue(mat.valid())

        self.assertTrue(materials)
        self.assertTrue(matObj)
        self.assertTrue(mat)

        targetNames = mat.getTargetNames()

        self.assertEqual(len( targetNames ), 2)
        self.assertTrue( ( targetNames[0] == 'arnold' and targetNames[1] == 'prman' ) or
                ( targetNames[1] == 'arnold' and targetNames[0] == 'prman' ) )

        for targetName in targetNames:
            shaderTypeNames = mat.getShaderTypesForTarget( targetName )

            if targetName == 'prman' :
                self.assertEqual(len( shaderTypeNames ), 2)
                self.assertTrue( ( shaderTypeNames[0] == 'surface' and
                       shaderTypeNames[1] == 'displacement' ) or
                     ( shaderTypeNames[1] == 'surface' and
                       shaderTypeNames[0] == 'displacement' ) )
            else :
                self.assertEqual(targetName, 'arnold')
                self.assertTrue(len( shaderTypeNames ) == 1 and shaderTypeNames[0])

            for shaderTypeName in shaderTypeNames:

                shaderName = mat.getShader( targetName, shaderTypeName )

                if targetName == 'prman' and shaderTypeName == 'surface':
                    self.assertEqual(shaderName, 'paintedplastic')
                elif targetName == 'prman' and shaderTypeName == 'displacement':
                    self.assertEqual(shaderName, 'knobby')
                elif targetName == 'arnold' and shaderTypeName == 'surface':
                    self.assertEqual(shaderName, 'paintedplastic')

                params = mat.getShaderParameters( targetName, shaderTypeName )

                if params.valid():
                    self.assertEqual(targetName, 'prman')
                    self.assertEqual(shaderTypeName, 'surface')

                    for i in range(0, params.getNumProperties()):
                        propHeader = params.getPropertyHeader( i )

                        if propHeader.isScalar():
                            if IStringProperty.matches( propHeader ):
                                prop = IStringProperty( params,
                                                    propHeader.getName() )
                                self.assertEqual(propHeader.getName(), 'texname')
                                self.assertEqual(prop.getValue(), 'taco' )
                            elif IFloatProperty.matches( propHeader ):
                                prop = IFloatProperty( params,
                                                   propHeader.getName() )
                                self.assertEqual( propHeader.getName(), 'Kd')
                                self.assertEqual( prop.getValue(), 0.5 )