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

Access the target prim the graph is being executed on. If the graph is executing itself, this will output the prim path of
the graph. Otherwise the graph is being executed via  instancing, then this will output the prim path of the target instance.
"""


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



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

    Class Members:
        node: Node being evaluated

    Attribute Value Properties:
        Inputs:
            inputs.targetPath
        Outputs:
            outputs.primPath
    """

    # 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:targetPath', 'token', 0, None, 'Deprecated. Do not use.', {ogn.MetadataKeys.HIDDEN: 'true'}, True, "", False, ''),
        ('outputs:primPath', 'token', 0, None, 'The target prim path', {}, True, None, 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 targetPath(self):
            data_view = og.AttributeValueHelper(self._attributes.targetPath)
            return data_view.get()

        @targetPath.setter
        def targetPath(self, value):
            if self._setting_locked:
                raise og.ReadOnlyError(self._attributes.targetPath)
            data_view = og.AttributeValueHelper(self._attributes.targetPath)
            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._batchedWriteValues = { }

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

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