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

Compute the partial sums of the input integer array named 'array' and put the result in  an output integer array named 'partialSum'.
A partial sum is the sum of all of the elements  up to but not including a certain point in an array, so output element 0
is always 0,  element 1 is array[0], element 2 is array[0] + array[1], etc.
"""

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

    Class Members:
        node: Node being evaluated

    Attribute Value Properties:
        Inputs:
            inputs.array
        Outputs:
            outputs.partialSum
    """

    # 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:array', 'int[]', 0, None, 'List of integers whose partial sum is to be computed', {ogn.MetadataKeys.DEFAULT: '[]'}, True, [], False, ''),
        ('outputs:partialSum', 'int[]', 0, None, "Array whose nth value equals the nth partial sum of the input 'array'", {ogn.MetadataKeys.DEFAULT: '[]'}, True, [], False, ''),
    ])

    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 array(self):
            data_view = og.AttributeValueHelper(self._attributes.array)
            return data_view.get()

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

        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.partialSum_size = 0
            self._batchedWriteValues = { }

        @property
        def partialSum(self):
            data_view = og.AttributeValueHelper(self._attributes.partialSum)
            return data_view.get(reserved_element_count=self.partialSum_size)

        @partialSum.setter
        def partialSum(self, value):
            data_view = og.AttributeValueHelper(self._attributes.partialSum)
            data_view.set(value)
            self.partialSum_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 = OgnPartialSumDatabase.ValuesForInputs(node, self.attributes.inputs, dynamic_attributes)
        dynamic_attributes = self.dynamic_attribute_data(node, og.AttributePortType.ATTRIBUTE_PORT_TYPE_OUTPUT)
        self.outputs = OgnPartialSumDatabase.ValuesForOutputs(node, self.attributes.outputs, dynamic_attributes)
        dynamic_attributes = self.dynamic_attribute_data(node, og.AttributePortType.ATTRIBUTE_PORT_TYPE_STATE)
        self.state = OgnPartialSumDatabase.ValuesForState(node, self.attributes.state, dynamic_attributes)
