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

This is a tutorial node. It exercises functionality for accessing data in extended attributes that are on the GPU as well
as those whose CPU/GPU location is decided at runtime. The compute adds the two inputs 'gpuData' and 'cpuData' together,
placing the result in `cpuGpuSum`, whose memory location is determined by the 'gpu' flag. This node is identical to OgnTutorialCpuGpuExtended.ogn,
except is is implemented in Python.
"""

from typing import Any
import carb
import sys
import traceback

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



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

    Class Members:
        node: Node being evaluated

    Attribute Value Properties:
        Inputs:
            inputs.cpuData
            inputs.gpu
            inputs.gpuData
        Outputs:
            outputs.cpuGpuSum
    """

    # 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:cpuData', 'any', 2, 'CPU Input Attribute', 'Input attribute whose data always lives on the CPU', {}, True, None, False, ''),
        ('inputs:gpu', 'bool', 0, 'Results To GPU', 'If true then put the sum on the GPU, otherwise put it on the CPU', {}, True, False, False, ''),
        ('inputs:gpuData', 'any', 2, 'GPU Input Attribute', 'Input attribute whose data always lives on the GPU', {ogn.MetadataKeys.MEMORY_TYPE: 'cuda'}, True, None, False, ''),
        ('outputs:cpuGpuSum', 'any', 2, 'Sum', "This is the attribute with the selected data. If the 'gpu' attribute is set to true then this\nattribute's contents will be entirely on the GPU, otherwise it will be on the CPU.", {ogn.MetadataKeys.MEMORY_TYPE: 'any'}, True, None, False, ''),
    ])

    class ValuesForInputs(og.DynamicAttributeAccess):
        LOCAL_PROPERTY_NAMES = {"gpu", "_setting_locked", "_batchedReadAttributes", "_batchedReadValues"}
        """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._attributes.gpu]
            self._batchedReadValues = [False]

        @property
        def cpuData(self) -> og.RuntimeAttribute:
            """Get the runtime wrapper class for the attribute inputs.cpuData"""
            return og.RuntimeAttribute(self._attributes.cpuData.get_attribute_data(), self._context, True)

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

        @property
        def gpuData(self) -> og.RuntimeAttribute:
            """Get the runtime wrapper class for the attribute inputs.gpuData"""
            return og.RuntimeAttribute(self._attributes.gpuData.get_attribute_data(), self._context, True)

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

        @property
        def gpu(self):
            return self._batchedReadValues[0]

        @gpu.setter
        def gpu(self, value):
            self._batchedReadValues[0] = value

        def __getattr__(self, item: str):
            if item in self.LOCAL_PROPERTY_NAMES:
                return object.__getattribute__(self, item)
            else:
                return super().__getattr__(item)

        def __setattr__(self, item: str, new_value):
            if item in self.LOCAL_PROPERTY_NAMES:
                object.__setattr__(self, item, new_value)
            else:
                super().__setattr__(item, new_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 cpuGpuSum(self) -> og.RuntimeAttribute:
            """Get the runtime wrapper class for the attribute outputs.cpuGpuSum"""
            return og.RuntimeAttribute(self._attributes.cpuGpuSum.get_attribute_data(), self._context, False)

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

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

    class abi:
        """Class defining the ABI interface for the node type"""

        @staticmethod
        def get_node_type():
            get_node_type_function = getattr(OgnTutorialCpuGpuExtendedPyDatabase.NODE_TYPE_CLASS, 'get_node_type', None)
            if callable(get_node_type_function):
                return get_node_type_function()
            return 'omni.graph.tutorials.CpuGpuExtendedPy'

        @staticmethod
        def compute(context, node):
            def database_valid():
                if db.inputs.cpuData.type.base_type == og.BaseDataType.UNKNOWN:
                    db.log_warning('Required extended attribute inputs:cpuData is not resolved, compute skipped')
                    return False
                if db.inputs.gpuData.type.base_type == og.BaseDataType.UNKNOWN:
                    db.log_warning('Required extended attribute inputs:gpuData is not resolved, compute skipped')
                    return False
                if db.outputs.cpuGpuSum.type.base_type == og.BaseDataType.UNKNOWN:
                    db.log_warning('Required extended attribute outputs:cpuGpuSum is not resolved, compute skipped')
                    return False
                return True
            try:
                per_node_data = OgnTutorialCpuGpuExtendedPyDatabase.PER_NODE_DATA[node.node_id()]
                db = per_node_data.get('_db')
                if db is None:
                    db = OgnTutorialCpuGpuExtendedPyDatabase(node)
                    per_node_data['_db'] = db
                if not database_valid():
                    per_node_data['_db'] = None
                    return False
            except:
                db = OgnTutorialCpuGpuExtendedPyDatabase(node)

            try:
                compute_function = getattr(OgnTutorialCpuGpuExtendedPyDatabase.NODE_TYPE_CLASS, 'compute', None)
                if callable(compute_function) and compute_function.__code__.co_argcount > 1:
                    return compute_function(context, node)

                db.inputs._prefetch()
                db.inputs._setting_locked = True
                with og.in_compute():
                    return OgnTutorialCpuGpuExtendedPyDatabase.NODE_TYPE_CLASS.compute(db)
            except Exception as error:
                stack_trace = "".join(traceback.format_tb(sys.exc_info()[2].tb_next))
                db.log_error(f'Assertion raised in compute - {error}\n{stack_trace}', add_context=False)
            finally:
                db.inputs._setting_locked = False
                db.outputs._commit()
            return False

        @staticmethod
        def initialize(context, node):
            OgnTutorialCpuGpuExtendedPyDatabase._initialize_per_node_data(node)
            initialize_function = getattr(OgnTutorialCpuGpuExtendedPyDatabase.NODE_TYPE_CLASS, 'initialize', None)
            if callable(initialize_function):
                initialize_function(context, node)

            per_node_data = OgnTutorialCpuGpuExtendedPyDatabase.PER_NODE_DATA[node.node_id()]
            def on_connection_or_disconnection(*args):
                per_node_data['_db'] = None

            node.register_on_connected_callback(on_connection_or_disconnection)
            node.register_on_disconnected_callback(on_connection_or_disconnection)

        @staticmethod
        def release(node):
            release_function = getattr(OgnTutorialCpuGpuExtendedPyDatabase.NODE_TYPE_CLASS, 'release', None)
            if callable(release_function):
                release_function(node)
            OgnTutorialCpuGpuExtendedPyDatabase._release_per_node_data(node)

        @staticmethod
        def release_instance(node, target):
            OgnTutorialCpuGpuExtendedPyDatabase._release_per_node_instance_data(node, target)

        @staticmethod
        def update_node_version(context, node, old_version, new_version):
            update_node_version_function = getattr(OgnTutorialCpuGpuExtendedPyDatabase.NODE_TYPE_CLASS, 'update_node_version', None)
            if callable(update_node_version_function):
                return update_node_version_function(context, node, old_version, new_version)
            return False

        @staticmethod
        def initialize_type(node_type):
            initialize_type_function = getattr(OgnTutorialCpuGpuExtendedPyDatabase.NODE_TYPE_CLASS, 'initialize_type', None)
            needs_initializing = True
            if callable(initialize_type_function):
                needs_initializing = initialize_type_function(node_type)
            if needs_initializing:
                node_type.set_metadata(ogn.MetadataKeys.EXTENSION, "omni.graph.tutorials")
                node_type.set_metadata(ogn.MetadataKeys.TAGS, "tutorial,extended,gpu")
                node_type.set_metadata(ogn.MetadataKeys.UI_NAME, "Tutorial Python Node: CPU/GPU Extended Attributes")
                node_type.set_metadata(ogn.MetadataKeys.CATEGORIES, "tutorials")
                node_type.set_metadata(ogn.MetadataKeys.DESCRIPTION, "This is a tutorial node. It exercises functionality for accessing data in extended attributes that are on the GPU as well as those whose CPU/GPU location is decided at runtime. The compute adds the two inputs 'gpuData' and 'cpuData' together, placing the result in `cpuGpuSum`, whose memory location is determined by the 'gpu' flag. This node is identical to OgnTutorialCpuGpuExtended.ogn, except is is implemented in Python.")
                node_type.set_metadata(ogn.MetadataKeys.LANGUAGE, "Python")
                icon_path = carb.tokens.get_tokens_interface().resolve("${omni.graph.tutorials}")
                icon_path = icon_path + '/' + "ogn/icons/omni.graph.tutorials.CpuGpuExtendedPy.svg"
                node_type.set_metadata(ogn.MetadataKeys.ICON_PATH, icon_path)
                OgnTutorialCpuGpuExtendedPyDatabase.INTERFACE.add_to_node_type(node_type)

        @staticmethod
        def on_connection_type_resolve(node):
            on_connection_type_resolve_function = getattr(OgnTutorialCpuGpuExtendedPyDatabase.NODE_TYPE_CLASS, 'on_connection_type_resolve', None)
            if callable(on_connection_type_resolve_function):
                on_connection_type_resolve_function(node)

    NODE_TYPE_CLASS = None

    @staticmethod
    def register(node_type_class):
        OgnTutorialCpuGpuExtendedPyDatabase.NODE_TYPE_CLASS = node_type_class
        og.register_node_type(OgnTutorialCpuGpuExtendedPyDatabase.abi, 1)

    @staticmethod
    def deregister():
        og.deregister_node_type("omni.graph.tutorials.CpuGpuExtendedPy")
