"""Support for simplified access to data on nodes of type omni.graph.nodes.BlendVariants

Add new variant by blending two variants
"""

import carb
import usdrt

import carb
import omni.graph.core as og
import omni.graph.core._omni_graph_core as _og
import omni.graph.tools.ogn as ogn



class OgnBlendVariantsDatabase(og.Database):
    """Helper class providing simplified access to data on nodes of type omni.graph.nodes.BlendVariants

    Class Members:
        node: Node being evaluated

    Attribute Value Properties:
        Inputs:
            inputs.blend
            inputs.execIn
            inputs.prim
            inputs.setVariant
            inputs.variantNameA
            inputs.variantNameB
            inputs.variantSetName
        Outputs:
            outputs.bundle
            outputs.execOut
    """

    # Imprint the generator and target ABI versions in the file for JIT generation
    GENERATOR_VERSION = (1, 41, 3)
    TARGET_VERSION = (2, 139, 12)

    # This is an internal object that provides per-class storage of a per-node data dictionary
    PER_NODE_DATA = {}

    # This is an internal object that describes unchanging attributes in a generic way
    # The values in this list are in no particular order, as a per-attribute tuple
    #     Name, Type, ExtendedTypeIndex, UiName, Description, Metadata,
    #     Is_Required, DefaultValue, Is_Deprecated, DeprecationMsg
    # You should not need to access any of this data directly, use the defined database interfaces
    INTERFACE = og.Database._get_interface([
        ('inputs:blend', 'double', 0, None, 'The blend value in [0.0, 1.0]', {ogn.MetadataKeys.DEFAULT: '0.0'}, True, 0.0, False, ''),
        ('inputs:execIn', 'execution', 0, None, 'The input execution', {}, True, None, False, ''),
        ('inputs:prim', 'target', 0, None, 'The prim with the variantSet', {}, True, [], False, ''),
        ('inputs:setVariant', 'bool', 0, None, 'Sets the variant selection when finished rather than writing to the attribute values', {ogn.MetadataKeys.DEFAULT: 'false'}, True, False, False, ''),
        ('inputs:variantNameA', 'token', 0, None, 'The first variant name', {}, True, "", False, ''),
        ('inputs:variantNameB', 'token', 0, None, 'The second variant name', {}, True, "", False, ''),
        ('inputs:variantSetName', 'token', 0, None, 'The variantSet name', {}, True, "", False, ''),
        ('outputs:bundle', 'bundle', 0, 'Bundle', 'Output bundle with blended attributes', {}, True, None, False, ''),
        ('outputs:execOut', 'execution', 0, None, 'The output execution', {}, True, None, False, ''),
    ])

    @classmethod
    def _populate_role_data(cls):
        """Populate a role structure with the non-default roles on this node type"""
        role_data = super()._populate_role_data()
        role_data.inputs.execIn = og.AttributeRole.EXECUTION
        role_data.inputs.prim = og.AttributeRole.TARGET
        role_data.outputs.bundle = og.AttributeRole.BUNDLE
        role_data.outputs.execOut = og.AttributeRole.EXECUTION
        return role_data

    class ValuesForInputs(og.DynamicAttributeAccess):
        LOCAL_PROPERTY_NAMES = { }
        """Helper class that creates natural hierarchical access to input attributes"""
        def __init__(self, node: og.Node, attributes, dynamic_attributes: og.DynamicAttributeInterface):
            """Initialize simplified access for the attribute data"""
            context = node.get_graph().get_default_graph_context()
            super().__init__(context, node, attributes, dynamic_attributes)
            self._batchedReadAttributes = []
            self._batchedReadValues = []

        @property
        def blend(self):
            data_view = og.AttributeValueHelper(self._attributes.blend)
            return data_view.get()

        @blend.setter
        def blend(self, value):
            if self._setting_locked:
                raise og.ReadOnlyError(self._attributes.blend)
            data_view = og.AttributeValueHelper(self._attributes.blend)
            data_view.set(value)

        @property
        def execIn(self):
            data_view = og.AttributeValueHelper(self._attributes.execIn)
            return data_view.get()

        @execIn.setter
        def execIn(self, value):
            if self._setting_locked:
                raise og.ReadOnlyError(self._attributes.execIn)
            data_view = og.AttributeValueHelper(self._attributes.execIn)
            data_view.set(value)

        @property
        def prim(self):
            data_view = og.AttributeValueHelper(self._attributes.prim)
            return data_view.get()

        @prim.setter
        def prim(self, value):
            if self._setting_locked:
                raise og.ReadOnlyError(self._attributes.prim)
            data_view = og.AttributeValueHelper(self._attributes.prim)
            data_view.set(value)
            self.prim_size = data_view.get_array_size()

        @property
        def setVariant(self):
            data_view = og.AttributeValueHelper(self._attributes.setVariant)
            return data_view.get()

        @setVariant.setter
        def setVariant(self, value):
            if self._setting_locked:
                raise og.ReadOnlyError(self._attributes.setVariant)
            data_view = og.AttributeValueHelper(self._attributes.setVariant)
            data_view.set(value)

        @property
        def variantNameA(self):
            data_view = og.AttributeValueHelper(self._attributes.variantNameA)
            return data_view.get()

        @variantNameA.setter
        def variantNameA(self, value):
            if self._setting_locked:
                raise og.ReadOnlyError(self._attributes.variantNameA)
            data_view = og.AttributeValueHelper(self._attributes.variantNameA)
            data_view.set(value)

        @property
        def variantNameB(self):
            data_view = og.AttributeValueHelper(self._attributes.variantNameB)
            return data_view.get()

        @variantNameB.setter
        def variantNameB(self, value):
            if self._setting_locked:
                raise og.ReadOnlyError(self._attributes.variantNameB)
            data_view = og.AttributeValueHelper(self._attributes.variantNameB)
            data_view.set(value)

        @property
        def variantSetName(self):
            data_view = og.AttributeValueHelper(self._attributes.variantSetName)
            return data_view.get()

        @variantSetName.setter
        def variantSetName(self, value):
            if self._setting_locked:
                raise og.ReadOnlyError(self._attributes.variantSetName)
            data_view = og.AttributeValueHelper(self._attributes.variantSetName)
            data_view.set(value)

        def _prefetch(self):
            readAttributes = self._batchedReadAttributes
            newValues = _og._prefetch_input_attributes_data(readAttributes)
            if len(readAttributes) == len(newValues):
                self._batchedReadValues = newValues

    class ValuesForOutputs(og.DynamicAttributeAccess):
        LOCAL_PROPERTY_NAMES = { }
        """Helper class that creates natural hierarchical access to output attributes"""
        def __init__(self, node: og.Node, attributes, dynamic_attributes: og.DynamicAttributeInterface):
            """Initialize simplified access for the attribute data"""
            context = node.get_graph().get_default_graph_context()
            super().__init__(context, node, attributes, dynamic_attributes)
            self.__bundles = og.BundleContainer(context, node, attributes, [], read_only=False, gpu_ptr_kinds={})
            self._batchedWriteValues = { }

        @property
        def bundle(self) -> og.BundleContents:
            """Get the bundle wrapper class for the attribute outputs.bundle"""
            return self.__bundles.bundle

        @bundle.setter
        def bundle(self, bundle: og.BundleContents):
            """Overwrite the bundle attribute outputs.bundle with a new bundle"""
            if not isinstance(bundle, og.BundleContents):
                carb.log_error("Only bundle attributes can be assigned to another bundle attribute")
            self.__bundles.bundle.bundle = bundle

        @property
        def execOut(self):
            data_view = og.AttributeValueHelper(self._attributes.execOut)
            return data_view.get()

        @execOut.setter
        def execOut(self, value):
            data_view = og.AttributeValueHelper(self._attributes.execOut)
            data_view.set(value)

        def _commit(self):
            _og._commit_output_attributes_data(self._batchedWriteValues)
            self._batchedWriteValues = { }

    class ValuesForState(og.DynamicAttributeAccess):
        """Helper class that creates natural hierarchical access to state attributes"""
        def __init__(self, node: og.Node, attributes, dynamic_attributes: og.DynamicAttributeInterface):
            """Initialize simplified access for the attribute data"""
            context = node.get_graph().get_default_graph_context()
            super().__init__(context, node, attributes, dynamic_attributes)

    def __init__(self, node):
        super().__init__(node)
        dynamic_attributes = self.dynamic_attribute_data(node, og.AttributePortType.ATTRIBUTE_PORT_TYPE_INPUT)
        self.inputs = OgnBlendVariantsDatabase.ValuesForInputs(node, self.attributes.inputs, dynamic_attributes)
        dynamic_attributes = self.dynamic_attribute_data(node, og.AttributePortType.ATTRIBUTE_PORT_TYPE_OUTPUT)
        self.outputs = OgnBlendVariantsDatabase.ValuesForOutputs(node, self.attributes.outputs, dynamic_attributes)
        dynamic_attributes = self.dynamic_attribute_data(node, og.AttributePortType.ATTRIBUTE_PORT_TYPE_STATE)
        self.state = OgnBlendVariantsDatabase.ValuesForState(node, self.attributes.state, dynamic_attributes)
