# Source code for graphene.types.schema

    from enum import Enum as PyEnum
    import inspect
    from functools import partial

    from graphql import (
        default_type_resolver,
        get_introspection_query,
        graphql,
        graphql_sync,
        introspection_types,
        parse,
        print_schema,
        subscribe,
        validate,
        ExecutionResult,
        GraphQLArgument,
        GraphQLBoolean,
        GraphQLError,
        GraphQLEnumValue,
        GraphQLField,
        GraphQLFloat,
        GraphQLID,
        GraphQLInputField,
        GraphQLInt,
        GraphQLList,
        GraphQLNonNull,
        GraphQLObjectType,
        GraphQLSchema,
        GraphQLString,
    )

    from ..utils.str_converters import to_camel_case
    from ..utils.get_unbound_function import get_unbound_function
    from .definitions import (
        GrapheneEnumType,
        GrapheneGraphQLType,
        GrapheneInputObjectType,
        GrapheneInterfaceType,
        GrapheneObjectType,
        GrapheneScalarType,
        GrapheneUnionType,
    )
    from .dynamic import Dynamic
    from .enum import Enum
    from .field import Field
    from .inputobjecttype import InputObjectType
    from .interface import Interface
    from .objecttype import ObjectType
    from .resolver import get_default_resolver
    from .scalars import ID, Boolean, Float, Int, Scalar, String
    from .structures import List, NonNull
    from .union import Union
    from .utils import get_field_as

    introspection_query = get_introspection_query()
    IntrospectionSchema = introspection_types["__Schema"]

    def assert_valid_root_type(type_):
        if type_ is None:
            return
        is_graphene_objecttype = inspect.isclass(type_) and issubclass(type_, ObjectType)
        is_graphql_objecttype = isinstance(type_, GraphQLObjectType)
        assert (
            is_graphene_objecttype or is_graphql_objecttype
        ), f"Type {type_} is not a valid ObjectType."

    def is_graphene_type(type_):
        if isinstance(type_, (List, NonNull)):
            return True
        if inspect.isclass(type_) and issubclass(
            type_, (ObjectType, InputObjectType, Scalar, Interface, Union, Enum)
        ):
            return True

    def is_type_of_from_possible_types(possible_types, root, _info):
        return isinstance(root, possible_types)

    # We use this resolver for subscriptions
    def identity_resolve(root, info, **arguments):
        return root

    class TypeMap(dict):
        def __init__(
            self,
            query=None,
            mutation=None,
            subscription=None,
            types=None,
            auto_camelcase=True,
        ):
            assert_valid_root_type(query)
            assert_valid_root_type(mutation)
            assert_valid_root_type(subscription)
            if types is None:
                types = []
            for type_ in types:
                assert is_graphene_type(type_)

            self.auto_camelcase = auto_camelcase

            create_graphql_type = self.add_type

            self.query = create_graphql_type(query) if query else None
            self.mutation = create_graphql_type(mutation) if mutation else None
            self.subscription = create_graphql_type(subscription) if subscription else None

            self.types = [create_graphql_type(graphene_type) for graphene_type in types]

        def add_type(self, graphene_type):
            if inspect.isfunction(graphene_type):
                graphene_type = graphene_type()
            if isinstance(graphene_type, List):
                return GraphQLList(self.add_type(graphene_type.of_type))
            if isinstance(graphene_type, NonNull):
                return GraphQLNonNull(self.add_type(graphene_type.of_type))
            try:
                name = graphene_type._meta.name
            except AttributeError:
                raise TypeError(f"Expected Graphene type, but received: {graphene_type}.")
            graphql_type = self.get(name)
            if graphql_type:
                return graphql_type
            if issubclass(graphene_type, ObjectType):
                graphql_type = self.create_objecttype(graphene_type)
            elif issubclass(graphene_type, InputObjectType):
                graphql_type = self.create_inputobjecttype(graphene_type)
            elif issubclass(graphene_type, Interface):
                graphql_type = self.create_interface(graphene_type)
            elif issubclass(graphene_type, Scalar):
                graphql_type = self.create_scalar(graphene_type)
            elif issubclass(graphene_type, Enum):
                graphql_type = self.create_enum(graphene_type)
            elif issubclass(graphene_type, Union):
                graphql_type = self.construct_union(graphene_type)
            else:
                raise TypeError(f"Expected Graphene type, but received: {graphene_type}.")
            self[name] = graphql_type
            return graphql_type

        @staticmethod
        def create_scalar(graphene_type):
            # We have a mapping to the original GraphQL types
            # so there are no collisions.
            _scalars = {
                String: GraphQLString,
                Int: GraphQLInt,
                Float: GraphQLFloat,
                Boolean: GraphQLBoolean,
                ID: GraphQLID,
            }
            if graphene_type in _scalars:
                return _scalars[graphene_type]

            return GrapheneScalarType(
                graphene_type=graphene_type,
                name=graphene_type._meta.name,
                description=graphene_type._meta.description,
                serialize=getattr(graphene_type, "serialize", None),
                parse_value=getattr(graphene_type, "parse_value", None),
                parse_literal=getattr(graphene_type, "parse_literal", None),
            )

        @staticmethod
        def create_enum(graphene_type):
            values = {}
            for name, value in graphene_type._meta.enum.__members__.items():
                description = getattr(value, "description", None)
                # if the "description" attribute is an Enum, it is likely an enum member
                # called description, not a description property
                if isinstance(description, PyEnum):
                    description = None
                if not description and callable(graphene_type._meta.description):
                    description = graphene_type._meta.description(value)

                deprecation_reason = getattr(value, "deprecation_reason", None)
                if isinstance(deprecation_reason, PyEnum):
                    deprecation_reason = None
                if not deprecation_reason and callable(
                    graphene_type._meta.deprecation_reason
                ):
                    deprecation_reason = graphene_type._meta.deprecation_reason(value)

                values[name] = GraphQLEnumValue(
                    value=value,
                    description=description,
                    deprecation_reason=deprecation_reason,
                )

            type_description = (
                graphene_type._meta.description(None)
                if callable(graphene_type._meta.description)
                else graphene_type._meta.description
            )

            return GrapheneEnumType(
                graphene_type=graphene_type,
                values=values,
                name=graphene_type._meta.name,
                description=type_description,
            )

        def create_objecttype(self, graphene_type):
            create_graphql_type = self.add_type

            def interfaces():
                interfaces = []
                for graphene_interface in graphene_type._meta.interfaces:
                    interface = create_graphql_type(graphene_interface)
                    assert interface.graphene_type == graphene_interface
                    interfaces.append(interface)
                return interfaces

            if graphene_type._meta.possible_types:
                is_type_of = partial(
                    is_type_of_from_possible_types, graphene_type._meta.possible_types
                )
            else:
                is_type_of = graphene_type.is_type_of

            return GrapheneObjectType(
                graphene_type=graphene_type,
                name=graphene_type._meta.name,
                description=graphene_type._meta.description,
                fields=partial(self.create_fields_for_type, graphene_type),
                is_type_of=is_type_of,
                interfaces=interfaces,
            )

        def create_interface(self, graphene_type):
            resolve_type = (
                partial(
                    self.resolve_type, graphene_type.resolve_type, graphene_type._meta.name
                )
                if graphene_type.resolve_type
                else None
            )

            def interfaces():
                interfaces = []
                for graphene_interface in graphene_type._meta.interfaces:
                    interface = self.add_type(graphene_interface)
                    assert interface.graphene_type == graphene_interface
                    interfaces.append(interface)
                return interfaces

            return GrapheneInterfaceType(
                graphene_type=graphene_type,
                name=graphene_type._meta.name,
                description=graphene_type._meta.description,
                fields=partial(self.create_fields_for_type, graphene_type),
                interfaces=interfaces,
                resolve_type=resolve_type,
            )

        def create_inputobjecttype(self, graphene_type):
            return GrapheneInputObjectType(
                graphene_type=graphene_type,
                name=graphene_type._meta.name,
                description=graphene_type._meta.description,
                out_type=graphene_type._meta.container,
                fields=partial(
                    self.create_fields_for_type, graphene_type, is_input_type=True
                ),
            )

        def construct_union(self, graphene_type):
            create_graphql_type = self.add_type

            def types():
                union_types = []
                for graphene_objecttype in graphene_type._meta.types:
                    object_type = create_graphql_type(graphene_objecttype)
                    assert object_type.graphene_type == graphene_objecttype
                    union_types.append(object_type)
                return union_types

            resolve_type = (
                partial(
                    self.resolve_type, graphene_type.resolve_type, graphene_type._meta.name
                )
                if graphene_type.resolve_type
                else None
            )

            return GrapheneUnionType(
                graphene_type=graphene_type,
                name=graphene_type._meta.name,
                description=graphene_type._meta.description,
                types=types,
                resolve_type=resolve_type,
            )

        def get_name(self, name):
            if self.auto_camelcase:
                return to_camel_case(name)
            return name

        def create_fields_for_type(self, graphene_type, is_input_type=False):
            create_graphql_type = self.add_type

            fields = {}
            for name, field in graphene_type._meta.fields.items():
                if isinstance(field, Dynamic):
                    field = get_field_as(field.get_type(self), _as=Field)
                    if not field:
                        continue
                field_type = create_graphql_type(field.type)
                if is_input_type:
                    _field = GraphQLInputField(
                        field_type,
                        default_value=field.default_value,
                        out_name=name,
                        description=field.description,
                        deprecation_reason=field.deprecation_reason,
                    )
                else:
                    args = {}
                    for arg_name, arg in field.args.items():
                        arg_type = create_graphql_type(arg.type)
                        processed_arg_name = arg.name or self.get_name(arg_name)
                        args[processed_arg_name] = GraphQLArgument(
                            arg_type,
                            out_name=arg_name,
                            description=arg.description,
                            default_value=arg.default_value,
                            deprecation_reason=arg.deprecation_reason,
                        )
                    subscribe = field.wrap_subscribe(
                        self.get_function_for_type(
                            graphene_type, f"subscribe_{name}", name, field.default_value
                        )
                    )

                    # If we are in a subscription, we use (by default) an
                    # identity-based resolver for the root, rather than the
                    # default resolver for objects/dicts.
                    if subscribe:
                        field_default_resolver = identity_resolve
                    elif issubclass(graphene_type, ObjectType):
                        default_resolver = (
                            graphene_type._meta.default_resolver or get_default_resolver()
                        )
                        field_default_resolver = partial(
                            default_resolver, name, field.default_value
                        )
                    else:
                        field_default_resolver = None

                    resolve = field.wrap_resolve(
                        self.get_function_for_type(
                            graphene_type, f"resolve_{name}", name, field.default_value
                        )
                        or field_default_resolver
                    )

                    _field = GraphQLField(
                        field_type,
                        args=args,
                        resolve=resolve,
                        subscribe=subscribe,
                        deprecation_reason=field.deprecation_reason,
                        description=field.description,
                    )
                field_name = field.name or self.get_name(name)
                fields[field_name] = _field
            return fields

        def get_function_for_type(self, graphene_type, func_name, name, default_value):
            """Gets a resolve or subscribe function for a given ObjectType"""
            if not issubclass(graphene_type, ObjectType):
                return
            resolver = getattr(graphene_type, func_name, None)
            if not resolver:
                # If we don't find the resolver in the ObjectType class, then try to
                # find it in each of the interfaces
                interface_resolver = None
                for interface in graphene_type._meta.interfaces:
                    if name not in interface._meta.fields:
                        continue
                    interface_resolver = getattr(interface, func_name, None)
                    if interface_resolver:
                        break
                resolver = interface_resolver

            # Only if is not decorated with classmethod
            if resolver:
                return get_unbound_function(resolver)

        def resolve_type(self, resolve_type_func, type_name, root, info, _type):
            type_ = resolve_type_func(root, info)

            if inspect.isclass(type_) and issubclass(type_, ObjectType):
                return type_._meta.name

            return_type = self[type_name]
            return default_type_resolver(root, info, return_type)

    class Schema:
        """Schema Definition.
        A Graphene Schema can execute operations (query, mutation, subscription) against the defined
        types. For advanced purposes, the schema can be used to lookup type definitions and answer
        questions about the types through introspection.
        Args:
            query (Type[ObjectType]): Root query *ObjectType*. Describes entry point for fields to *read*
                data in your Schema.
            mutation (Optional[Type[ObjectType]]): Root mutation *ObjectType*. Describes entry point for
                fields to *create, update or delete* data in your API.
            subscription (Optional[Type[ObjectType]]): Root subscription *ObjectType*. Describes entry point
                for fields to receive continuous updates.
            types (Optional[List[Type[ObjectType]]]): List of any types to include in schema that
                may not be introspected through root types.
            directives (List[GraphQLDirective], optional): List of custom directives to include in the
                GraphQL schema. Defaults to only include directives defined by GraphQL spec (@include
                and @skip) [GraphQLIncludeDirective, GraphQLSkipDirective].
            auto_camelcase (bool): Fieldnames will be transformed in Schema's TypeMap from snake_case
                to camelCase (preferred by GraphQL standard). Default True.
        """

        def __init__(
            self,
            query=None,
            mutation=None,
            subscription=None,
            types=None,
            directives=None,
            auto_camelcase=True,
        ):
            self.query = query
            self.mutation = mutation
            self.subscription = subscription
            type_map = TypeMap(
                query, mutation, subscription, types, auto_camelcase=auto_camelcase
            )
            self.graphql_schema = GraphQLSchema(
                type_map.query,
                type_map.mutation,
                type_map.subscription,
                type_map.types,
                directives,
            )

        def __str__(self):
            return print_schema(self.graphql_schema)

        def __getattr__(self, type_name):
            """
            This function let the developer select a type in a given schema
            by accessing its attrs.
            Example: using schema.Query for accessing the "Query" type in the Schema
            """
            _type = self.graphql_schema.get_type(type_name)
            if _type is None:
                raise AttributeError(f'Type "{type_name}" not found in the Schema')
            if isinstance(_type, GrapheneGraphQLType):
                return _type.graphene_type
            return _type

        def lazy(self, _type):
            return lambda: self.get_type(_type)

        def execute(self, *args, **kwargs):
            """Execute a GraphQL query on the schema.
            Use the `graphql_sync` function from `graphql-core` to provide the result
            for a query string. Most of the time this method will be called by one of the Graphene
            :ref:`Integrations` via a web request.
            Args:
                request_string (str or Document): GraphQL request (query, mutation or subscription)
                    as string or parsed AST form from `graphql-core`.
                root_value (Any, optional): Value to use as the parent value object when resolving
                    root types.
                context_value (Any, optional): Value to be made available to all resolvers via
                    `info.context`. Can be used to share authorization, dataloaders or other
                    information needed to resolve an operation.
                variable_values (dict, optional): If variables are used in the request string, they can
                    be provided in dictionary form mapping the variable name to the variable value.
                operation_name (str, optional): If multiple operations are provided in the
                    request_string, an operation name must be provided for the result to be provided.
                middleware (List[SupportsGraphQLMiddleware]): Supply request level middleware as
                    defined in `graphql-core`.
                execution_context_class (ExecutionContext, optional): The execution context class
                    to use when resolving queries and mutations.
            Returns:
                :obj:`ExecutionResult` containing any data and errors for the operation.
            """
            kwargs = normalize_execute_kwargs(kwargs)
            return graphql_sync(self.graphql_schema, *args, **kwargs)

        async def execute_async(self, *args, **kwargs):
            """Execute a GraphQL query on the schema asynchronously.
            Same as `execute`, but uses `graphql` instead of `graphql_sync`.
            """
            kwargs = normalize_execute_kwargs(kwargs)
            return await graphql(self.graphql_schema, *args, **kwargs)

        async def subscribe(self, query, *args, **kwargs):
            """Execute a GraphQL subscription on the schema asynchronously."""
            # Do parsing
            try:
                document = parse(query)
            except GraphQLError as error:
                return ExecutionResult(data=None, errors=[error])

            # Do validation
            validation_errors = validate(self.graphql_schema, document)
            if validation_errors:
                return ExecutionResult(data=None, errors=validation_errors)

            # Execute the query
            kwargs = normalize_execute_kwargs(kwargs)
            return await subscribe(self.graphql_schema, document, *args, **kwargs)

        def introspect(self):
            introspection = self.execute(introspection_query)
            if introspection.errors:
                raise introspection.errors[0]
            return introspection.data

    def normalize_execute_kwargs(kwargs):
        """Replace alias names in keyword arguments for graphql()"""
        if "root" in kwargs and "root_value" not in kwargs:
            kwargs["root_value"] = kwargs.pop("root")
        if "context" in kwargs and "context_value" not in kwargs:
            kwargs["context_value"] = kwargs.pop("context")
        if "variables" in kwargs and "variable_values" not in kwargs:
            kwargs["variable_values"] = kwargs.pop("variables")
        if "operation" in kwargs and "operation_name" not in kwargs:
            kwargs["operation_name"] = kwargs.pop("operation")
        return kwargs