import { GraphQLRecordAssertion, GraphQLArgumentAssertion } from '../graphql/graphqlService';
import { DataStorageInternal, GenericGraphQLStorageSource } from './dataStorageInternalService';
import { MergeNonOptionalFieldsIntoSimilarType, RequiredDifference, NonNullableProps } from '../../utilities/types';
export type CreateMutationResolver<A, B> = (mutationArg: A, id: string) => B;
export type UpdateMutationResolver<A, B> = (mutationArg: A, sourceRecord: B) => B;
export type DeleteMutationResolver<A> = (mutationId: string, fullStorageState: A, isDynamic: boolean) => A;
export type ListAllResolver<A> = (allValues: A[]) => A[];
export interface ManagerResolvers<QueryType extends GraphQLRecordAssertion<QueryType>, CreateType extends GraphQLArgumentAssertion<CreateType>, UpdateType extends GraphQLRecordAssertion<UpdateType>, StorageType extends GenericGraphQLStorageSource<StorageType>, _FullBaseType extends RequiredDifference<_FullBaseType, NonNullableProps<Required<QueryType>> & NonNullableProps<Required<CreateType>> & NonNullableProps<Required<UpdateType>>>, SafeUpdateType = MergeNonOptionalFieldsIntoSimilarType<CreateType, UpdateType>> {
    listAllResolver: ListAllResolver<QueryType>;
    createMutationResolver?: CreateMutationResolver<CreateType, QueryType>;
    updateMutationResolver?: UpdateMutationResolver<SafeUpdateType, QueryType>;
    deleteMutationResolver?: DeleteMutationResolver<StorageType>;
}
/**
 * SafeUpdateType: The GraphQL schema types for updates are insufficient because
 * they do not tell you whether a field is nullable or not.  All update types are
 * by default a Null/Partial of the base schema type with the exception of the UID.
 * By merging the create type into the update type, we can actually infer what properties
 * are nullable by finding which properties are required as part of the create type.
 * This will remove the '| null' from any properties that are required but will keep the ?
 * which ultimately means they still support partial updates but not nullability.
 */
export declare class DataManager<QueryType extends GraphQLRecordAssertion<QueryType>, CreateType extends GraphQLArgumentAssertion<CreateType>, UpdateType extends GraphQLRecordAssertion<UpdateType>, StorageType extends GenericGraphQLStorageSource<StorageType>, _FullBaseType extends RequiredDifference<_FullBaseType, NonNullableProps<Required<QueryType>> & NonNullableProps<Required<CreateType>> & NonNullableProps<Required<UpdateType>>>, SafeUpdateType = MergeNonOptionalFieldsIntoSimilarType<CreateType, UpdateType>> {
    private _schema;
    private _contextId;
    private _storage;
    private _createMutationResolver;
    private _updateMutationResolver;
    private _deleteMutationResolver;
    private _listAllResolver;
    constructor(schema: keyof GenericGraphQLStorageSource<StorageType>, storage: DataStorageInternal<StorageType>, contextId: string, resolvers: ManagerResolvers<QueryType, CreateType, UpdateType, StorageType, _FullBaseType>);
    private notImplementedResolver;
    createItem(item: CreateType): QueryType;
    updateItem(item: SafeUpdateType): QueryType;
    deleteItem(itemId: string): void;
    listAll(): QueryType[];
}
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