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

This is a tutorial node. It exercises functionality for accessing data in bundles that are on the GPU as well as bundles
whose CPU/GPU location is decided at runtime. The compute looks for bundled attributes named 'points' and, if they are found,
computes their dot products. If the bundle on the output contains an integer array type named 'dotProducts' then the results
are placed there, otherwise a new attribute of that name and type is created on the output bundle to hold the results. This
node is identical to OgnTutorialCpuGpuBundlesPy.ogn, except it is implemented in C++.
"""

import carb

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

    Class Members:
        node: Node being evaluated

    Attribute Value Properties:
        Inputs:
            inputs.cpuBundle
            inputs.gpu
            inputs.gpuBundle
        Outputs:
            outputs.cpuGpuBundle

    Predefined Tokens:
        tokens.points
        tokens.dotProducts
    """

    # 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:cpuBundle', 'bundle', 0, 'CPU Input Bundle', 'Input bundle whose data always lives on the CPU', {}, True, None, False, ''),
        ('inputs:gpu', 'bool', 0, 'Results To GPU', 'If true then copy gpuBundle onto the output, otherwise copy cpuBundle', {}, True, False, False, ''),
        ('inputs:gpuBundle', 'bundle', 0, 'GPU Input Bundle', 'Input bundle whose data always lives on the GPU', {ogn.MetadataKeys.MEMORY_TYPE: 'cuda'}, True, None, False, ''),
        ('outputs:cpuGpuBundle', 'bundle', 0, 'Constructed Bundle', "This is the bundle with the merged data. If the 'gpu' attribute is set to true then this\nbundle's contents will be entirely on the GPU, otherwise they will be on the CPU.", {ogn.MetadataKeys.MEMORY_TYPE: 'any'}, True, None, False, ''),
    ])

    class tokens:
        points = "points"
        dotProducts = "dotProducts"

    @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.cpuBundle = og.AttributeRole.BUNDLE
        role_data.inputs.gpuBundle = og.AttributeRole.BUNDLE
        role_data.outputs.cpuGpuBundle = og.AttributeRole.BUNDLE
        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.__bundles = og.BundleContainer(context, node, attributes, ['inputs:gpuBundle'], read_only=True, gpu_ptr_kinds={})
            self._batchedReadAttributes = []
            self._batchedReadValues = []

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

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

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

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

        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, ['outputs_cpuGpuBundle'], read_only=False, gpu_ptr_kinds={})
            self._batchedWriteValues = { }

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

        @cpuGpuBundle.setter
        def cpuGpuBundle(self, bundle: og.BundleContents):
            """Overwrite the bundle attribute outputs.cpuGpuBundle 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.cpuGpuBundle.bundle = bundle

        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 = OgnTutorialCpuGpuBundlesDatabase.ValuesForInputs(node, self.attributes.inputs, dynamic_attributes)
        dynamic_attributes = self.dynamic_attribute_data(node, og.AttributePortType.ATTRIBUTE_PORT_TYPE_OUTPUT)
        self.outputs = OgnTutorialCpuGpuBundlesDatabase.ValuesForOutputs(node, self.attributes.outputs, dynamic_attributes)
        dynamic_attributes = self.dynamic_attribute_data(node, og.AttributePortType.ATTRIBUTE_PORT_TYPE_STATE)
        self.state = OgnTutorialCpuGpuBundlesDatabase.ValuesForState(node, self.attributes.state, dynamic_attributes)
