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

Read Prim attributes and exposes them as dynamic attributes Does not produce output bundle.
"""

import usdrt

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

    Class Members:
        node: Node being evaluated

    Attribute Value Properties:
        Inputs:
            inputs.attrNamesToImport
            inputs.prim
            inputs.primPath
            inputs.usdTimecode
            inputs.usePath
        Outputs:
            outputs.primBundle
        State:
            state.attrNamesToImport
            state.primPath
            state.usdTimecode
    """

    # 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:attrNamesToImport', 'string', 0, 'Attribute Name Pattern', "A list of wildcard patterns used to match the attribute names that are to be imported\n\nSupported syntax of wildcard pattern:\n    '*' - match an arbitrary number of any characters\n    '?' - match any single character\n    '^' - (caret) is used to define a pattern that is to be excluded\n\nExample of wildcard patterns, input: ['points', 'faceVertexCount', 'faceVertexIndices', 'size']\n    '*' - match any\n    '* ^points' - match any, but exclude 'points'\n    '* ^face*' - match any, but exclude 'faceVertexCount' and 'faceVertexIndices'", {ogn.MetadataKeys.DEFAULT: '"*"'}, True, "*", False, ''),
        ('inputs:prim', 'target', 0, None, "The prim to be read from when 'usePath' is false", {}, True, [], False, ''),
        ('inputs:primPath', 'path', 0, 'Prim Path', "The path of the prim to be read from when 'usePath' is true", {ogn.MetadataKeys.DEFAULT: '""'}, False, "", True, 'Use prim input with a GetPrimsAtPath node instead'),
        ('inputs:usdTimecode', 'timecode', 0, 'Time', 'The time at which to evaluate the transform of the USD prim. A value of "NaN" indicates that the default USD time stamp should be used', {ogn.MetadataKeys.DEFAULT: '"NaN"'}, True, float("NaN"), False, ''),
        ('inputs:usePath', 'bool', 0, 'Use Path', "When true, the 'primPath' attribute is used as the path to the prim being read, otherwise it will read the connection at the 'prim' attribute", {ogn.MetadataKeys.DEFAULT: 'false'}, True, False, True, 'Use prim input with a GetPrimsAtPath node instead'),
        ('outputs:primBundle', 'bundle', 0, None, 'A bundle of the target Prim attributes.\nIn addition to the data attributes, there are token attributes named sourcePrimPath and sourcePrimType\nwhich contains the path of the Prim being read', {ogn.MetadataKeys.HIDDEN: 'true', ogn.MetadataKeys.LITERAL_ONLY: '1'}, True, None, False, ''),
        ('state:attrNamesToImport', 'string', 0, None, 'State from previous evaluation', {}, True, None, False, ''),
        ('state:primPath', 'uint64', 0, None, 'State from previous evaluation', {}, True, None, False, ''),
        ('state:usdTimecode', 'timecode', 0, None, 'State from previous evaluation', {ogn.MetadataKeys.DEFAULT: '"NaN"'}, True, float("NaN"), 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.attrNamesToImport = og.AttributeRole.TEXT
        role_data.inputs.prim = og.AttributeRole.TARGET
        role_data.inputs.primPath = og.AttributeRole.PATH
        role_data.inputs.usdTimecode = og.AttributeRole.TIMECODE
        role_data.outputs.primBundle = og.AttributeRole.BUNDLE
        role_data.state.attrNamesToImport = og.AttributeRole.TEXT
        role_data.state.usdTimecode = og.AttributeRole.TIMECODE
        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._batchedReadAttributes = []
            self._batchedReadValues = []

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

        @attrNamesToImport.setter
        def attrNamesToImport(self, value):
            if self._setting_locked:
                raise og.ReadOnlyError(self._attributes.attrNamesToImport)
            data_view = og.AttributeValueHelper(self._attributes.attrNamesToImport)
            data_view.set(value)
            self.attrNamesToImport_size = data_view.get_array_size()

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

        @prim.setter
        def prim(self, value):
            if self._setting_locked:
                raise og.ReadOnlyError(self._attributes.prim)
            data_view = og.AttributeValueHelper(self._attributes.prim)
            data_view.set(value)
            self.prim_size = data_view.get_array_size()

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

        @primPath.setter
        def primPath(self, value):
            if self._setting_locked:
                raise og.ReadOnlyError(self._attributes.primPath)
            data_view = og.AttributeValueHelper(self._attributes.primPath)
            data_view.set(value)
            self.primPath_size = data_view.get_array_size()

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

        @usdTimecode.setter
        def usdTimecode(self, value):
            if self._setting_locked:
                raise og.ReadOnlyError(self._attributes.usdTimecode)
            data_view = og.AttributeValueHelper(self._attributes.usdTimecode)
            data_view.set(value)

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

        @usePath.setter
        def usePath(self, value):
            if self._setting_locked:
                raise og.ReadOnlyError(self._attributes.usePath)
            data_view = og.AttributeValueHelper(self._attributes.usePath)
            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 primBundle(self) -> og.BundleContents:
            """Get the bundle wrapper class for the attribute outputs.primBundle"""
            return self.__bundles.primBundle

        @primBundle.setter
        def primBundle(self, bundle: og.BundleContents):
            """Overwrite the bundle attribute outputs.primBundle 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.primBundle.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)
            self.attrNamesToImport_size = None

        @property
        def attrNamesToImport(self):
            data_view = og.AttributeValueHelper(self._attributes.attrNamesToImport)
            self.attrNamesToImport_size = data_view.get_array_size()
            return data_view.get()

        @attrNamesToImport.setter
        def attrNamesToImport(self, value):
            data_view = og.AttributeValueHelper(self._attributes.attrNamesToImport)
            data_view.set(value)
            self.attrNamesToImport_size = data_view.get_array_size()

        @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)

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

        @usdTimecode.setter
        def usdTimecode(self, value):
            data_view = og.AttributeValueHelper(self._attributes.usdTimecode)
            data_view.set(value)

    def __init__(self, node):
        super().__init__(node)
        dynamic_attributes = self.dynamic_attribute_data(node, og.AttributePortType.ATTRIBUTE_PORT_TYPE_INPUT)
        self.inputs = OgnReadPrimAttributesDatabase.ValuesForInputs(node, self.attributes.inputs, dynamic_attributes)
        dynamic_attributes = self.dynamic_attribute_data(node, og.AttributePortType.ATTRIBUTE_PORT_TYPE_OUTPUT)
        self.outputs = OgnReadPrimAttributesDatabase.ValuesForOutputs(node, self.attributes.outputs, dynamic_attributes)
        dynamic_attributes = self.dynamic_attribute_data(node, og.AttributePortType.ATTRIBUTE_PORT_TYPE_STATE)
        self.state = OgnReadPrimAttributesDatabase.ValuesForState(node, self.attributes.state, dynamic_attributes)
