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

Generate an array of the specified number of points at random locations within the bounding cube. This is the same node as
OgnRandomPoints.ogn, except the memory is stored on the GPU.
"""

import carb
import numpy

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



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

    Class Members:
        node: Node being evaluated

    Attribute Value Properties:
        Inputs:
            inputs.maximum
            inputs.minimum
            inputs.pointCount
        Outputs:
            outputs.points
    """

    # 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:maximum', 'point3f', 0, 'Bounding Cube Maximum', 'Highest X, Y, Z values for the bounding volume', {ogn.MetadataKeys.DEFAULT: '[1.0, 1.0, 1.0]'}, True, [1.0, 1.0, 1.0], False, ''),
        ('inputs:minimum', 'point3f', 0, 'Bounding Cube Minimum', 'Lowest X, Y, Z values for the bounding volume', {ogn.MetadataKeys.DEFAULT: '[0.0, 0.0, 0.0]'}, True, [0.0, 0.0, 0.0], False, ''),
        ('inputs:pointCount', 'uint64', 0, 'Point Count', 'Number of points to generate', {ogn.MetadataKeys.MEMORY_TYPE: 'cpu'}, True, 0, False, ''),
        ('outputs:points', 'point3f[]', 0, 'Random Points', 'Randomly generated points', {}, 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.maximum = og.AttributeRole.POSITION
        role_data.inputs.minimum = og.AttributeRole.POSITION
        role_data.outputs.points = og.AttributeRole.POSITION
        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 maximum(self):
            data_view = og.AttributeValueHelper(self._attributes.maximum)
            return data_view.get(on_gpu=True)

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

        @property
        def minimum(self):
            data_view = og.AttributeValueHelper(self._attributes.minimum)
            return data_view.get(on_gpu=True)

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

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

        @pointCount.setter
        def pointCount(self, value):
            if self._setting_locked:
                raise og.ReadOnlyError(self._attributes.pointCount)
            data_view = og.AttributeValueHelper(self._attributes.pointCount)
            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.points_size = None
            self._batchedWriteValues = { }

        @property
        def points(self):
            data_view = og.AttributeValueHelper(self._attributes.points)
            return data_view.get(reserved_element_count=self.points_size, on_gpu=True)

        @points.setter
        def points(self, value):
            data_view = og.AttributeValueHelper(self._attributes.points)
            data_view.set(value, on_gpu=True)
            self.points_size = data_view.get_array_size()

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