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

Event node which fires when a UI widget with the specified identifier is clicked. This node should be used in combination
with UI creation nodes such as OgnButton.
"""

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

    Class Members:
        node: Node being evaluated

    Attribute Value Properties:
        Inputs:
            inputs.widgetIdentifier
        Outputs:
            outputs.clicked
    """

    # 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:widgetIdentifier', 'token', 0, 'Widget Identifier', 'A unique identifier identifying the widget.\nThis should be specified in the UI creation node such as OgnButton.', {ogn.MetadataKeys.LITERAL_ONLY: '1'}, True, "", False, ''),
        ('outputs:clicked', 'execution', 0, 'Clicked', 'Executed when the widget is clicked', {}, 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.outputs.clicked = og.AttributeRole.EXECUTION
        return role_data

    class ValuesForInputs(og.DynamicAttributeAccess):
        LOCAL_PROPERTY_NAMES = {"widgetIdentifier", "_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.widgetIdentifier]
            self._batchedReadValues = [""]

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

        @widgetIdentifier.setter
        def widgetIdentifier(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 = {"clicked", "_batchedWriteValues"}
        """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 clicked(self):
            value = self._batchedWriteValues.get(self._attributes.clicked)
            if value:
                return value
            else:
                data_view = og.AttributeValueHelper(self._attributes.clicked)
                return data_view.get()

        @clicked.setter
        def clicked(self, value):
            self._batchedWriteValues[self._attributes.clicked] = 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 _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 = OgnOnWidgetClickedDatabase.ValuesForInputs(node, self.attributes.inputs, dynamic_attributes)
        dynamic_attributes = self.dynamic_attribute_data(node, og.AttributePortType.ATTRIBUTE_PORT_TYPE_OUTPUT)
        self.outputs = OgnOnWidgetClickedDatabase.ValuesForOutputs(node, self.attributes.outputs, dynamic_attributes)
        dynamic_attributes = self.dynamic_attribute_data(node, og.AttributePortType.ATTRIBUTE_PORT_TYPE_STATE)
        self.state = OgnOnWidgetClickedDatabase.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(OgnOnWidgetClickedDatabase.NODE_TYPE_CLASS, 'get_node_type', None)
            if callable(get_node_type_function):
                return get_node_type_function()
            return 'omni.graph.ui_nodes.OnWidgetClicked'

        @staticmethod
        def compute(context, node):
            def database_valid():
                return True
            try:
                per_node_data = OgnOnWidgetClickedDatabase.PER_NODE_DATA[node.node_id()]
                db = per_node_data.get('_db')
                if db is None:
                    db = OgnOnWidgetClickedDatabase(node)
                    per_node_data['_db'] = db
                if not database_valid():
                    per_node_data['_db'] = None
                    return False
            except:
                db = OgnOnWidgetClickedDatabase(node)

            try:
                compute_function = getattr(OgnOnWidgetClickedDatabase.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 OgnOnWidgetClickedDatabase.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):
            OgnOnWidgetClickedDatabase._initialize_per_node_data(node)
            initialize_function = getattr(OgnOnWidgetClickedDatabase.NODE_TYPE_CLASS, 'initialize', None)
            if callable(initialize_function):
                initialize_function(context, node)

            per_node_data = OgnOnWidgetClickedDatabase.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(OgnOnWidgetClickedDatabase.NODE_TYPE_CLASS, 'release', None)
            if callable(release_function):
                release_function(node)
            OgnOnWidgetClickedDatabase._release_per_node_data(node)

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

        @staticmethod
        def update_node_version(context, node, old_version, new_version):
            update_node_version_function = getattr(OgnOnWidgetClickedDatabase.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(OgnOnWidgetClickedDatabase.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.ui_nodes")
                node_type.set_metadata(ogn.MetadataKeys.UI_NAME, "On Widget Clicked (BETA)")
                node_type.set_metadata(ogn.MetadataKeys.CATEGORIES, "graph:action,ui")
                node_type.set_metadata(ogn.MetadataKeys.DESCRIPTION, "Event node which fires when a UI widget with the specified identifier is clicked. This node should be used in combination with UI creation nodes such as OgnButton.")
                node_type.set_metadata(ogn.MetadataKeys.EXCLUSIONS, "tests")
                node_type.set_metadata(ogn.MetadataKeys.LANGUAGE, "Python")
                __hints = node_type.get_scheduling_hints()
                if __hints is not None:
                    __hints.compute_rule = og.eComputeRule.E_ON_REQUEST
                OgnOnWidgetClickedDatabase.INTERFACE.add_to_node_type(node_type)
                node_type.set_has_state(True)

        @staticmethod
        def on_connection_type_resolve(node):
            on_connection_type_resolve_function = getattr(OgnOnWidgetClickedDatabase.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):
        OgnOnWidgetClickedDatabase.NODE_TYPE_CLASS = node_type_class
        og.register_node_type(OgnOnWidgetClickedDatabase.abi, 1)

    @staticmethod
    def deregister():
        og.deregister_node_type("omni.graph.ui_nodes.OnWidgetClicked")
