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

Retrieves the names of all of the attributes contained in the input bundle, optionally sorted.
"""

import numpy

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

    Class Members:
        node: Node being evaluated

    Attribute Value Properties:
        Inputs:
            inputs.data
            inputs.sort
        Outputs:
            outputs.output
    """

    # 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:data', 'bundle', 0, 'Bundle To Examine', 'Collection of attributes from which to extract names', {}, True, None, False, ''),
        ('inputs:sort', 'bool', 0, 'Sort Output', 'If true, the names will be output in sorted order (default, for consistency).\nIf false, the order is not be guaranteed to be consistent between systems or over\ntime, so do not rely on the order downstream in this case.', {ogn.MetadataKeys.DEFAULT: 'true'}, True, True, False, ''),
        ('outputs:output', 'token[]', 0, 'Attribute Names', 'Names of all of the attributes contained in the input bundle', {}, 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.data = 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, [], read_only=True, gpu_ptr_kinds={})
            self._batchedReadAttributes = []
            self._batchedReadValues = []

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

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

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

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

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