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

Copies all attributes from an input bundle to the output bundle, as well as copying an additional 'attrToInsert' attribute
from the node itself with a specified name.
"""

from typing import Any

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

    Class Members:
        node: Node being evaluated

    Attribute Value Properties:
        Inputs:
            inputs.attrToInsert
            inputs.data
            inputs.outputAttrName
        Outputs:
            outputs.data
    """

    # 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:attrToInsert', 'any', 2, 'Attribute To Insert', 'The the attribute to be copied from the node to the output bundle', {}, True, None, False, ''),
        ('inputs:data', 'bundle', 0, 'Original Bundle', 'Initial bundle of attributes', {}, True, None, False, ''),
        ('inputs:outputAttrName', 'token', 0, 'Attribute Name', 'The name of the new output attribute in the bundle', {ogn.MetadataKeys.DEFAULT: '"attr0"'}, True, "attr0", False, ''),
        ('outputs:data', 'bundle', 0, 'Bundle With Inserted Attribute', 'Bundle of input attributes with the new one inserted with the specified name', {}, 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
        role_data.outputs.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 attrToInsert(self) -> og.RuntimeAttribute:
            """Get the runtime wrapper class for the attribute inputs.attrToInsert"""
            return og.RuntimeAttribute(self._attributes.attrToInsert.get_attribute_data(), self._context, True)

        @attrToInsert.setter
        def attrToInsert(self, value_to_set: Any):
            """Assign another attribute's value to outputs.attrToInsert"""
            if isinstance(value_to_set, og.RuntimeAttribute):
                self.attrToInsert.value = value_to_set.value
            else:
                self.attrToInsert.value = value_to_set

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

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

        @outputAttrName.setter
        def outputAttrName(self, value):
            if self._setting_locked:
                raise og.ReadOnlyError(self._attributes.outputAttrName)
            data_view = og.AttributeValueHelper(self._attributes.outputAttrName)
            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.__bundles = og.BundleContainer(context, node, attributes, [], read_only=False, gpu_ptr_kinds={})
            self._batchedWriteValues = { }

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

        @data.setter
        def data(self, bundle: og.BundleContents):
            """Overwrite the bundle attribute outputs.data 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.data.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 = OgnInsertAttrDatabase.ValuesForInputs(node, self.attributes.inputs, dynamic_attributes)
        dynamic_attributes = self.dynamic_attribute_data(node, og.AttributePortType.ATTRIBUTE_PORT_TYPE_OUTPUT)
        self.outputs = OgnInsertAttrDatabase.ValuesForOutputs(node, self.attributes.outputs, dynamic_attributes)
        dynamic_attributes = self.dynamic_attribute_data(node, og.AttributePortType.ATTRIBUTE_PORT_TYPE_STATE)
        self.state = OgnInsertAttrDatabase.ValuesForState(node, self.attributes.state, dynamic_attributes)
