import * as Joi from "joi";
import { Key } from "@google-cloud/datastore";
export declare type SchemaDefinitionProperties<T> = {
    [P in keyof T]: SchemaPropertyDefinition;
};
export declare type SchemaDefinitionOptions = {
    __excludeFromIndexes?: string[];
};
export declare type SchemaDefinition<T = any> = SchemaDefinitionProperties<T> & SchemaDefinitionOptions;
export declare type TReturnOnly = "FIRST" | "LAST" | "RANDOM";
export interface IPebblebedModelOptions {
    neverCache?: boolean;
    defaultCachingSeconds?: number | null;
    defaultNamespace?: string;
}
export interface IPebblebedSaveEntity<T> {
    key: Key;
    excludeFromIndexes: string[];
    generated: boolean;
    data: T;
}
export interface IOJoiSchemaPropertyMetaInput<T> {
    role?: "id";
    indexed?: boolean;
    required?: boolean;
    nullValueIfUnset?: boolean;
    onSave?: (value: any) => T;
}
export interface IOJoiSchemaObjectPropertyMetaInput {
    serialize?: boolean;
}
export interface IOJoiSchemaSerializedJsonPropertyMetaInput {
    reviver?: (key: any, value: any) => any;
    joiSchema?: Joi.Schema;
}
export interface IOJoiSchemaDefaultMetaInput {
    indexed?: boolean;
    nullValueIfUnset?: boolean;
}
export interface IJoiDescribeObjectProperty {
    type: string;
    metas?: any[];
    allow?: any[];
    flags?: {
        presence?: "required";
        default?: any;
    };
}
export interface IJoiDescribeObject {
    [prop: string]: IJoiDescribeObjectProperty;
}
export interface IPebblebedJoiSchema {
    isPebbledbedJoiSchema: boolean;
    entityPropertyMetaDefaults: IOJoiSchemaDefaultMetaInput;
    entitySchema: Joi.Schema;
}
export declare type SchemaPropertyDefinition = {
    type: "string" | "int" | "double" | "boolean" | "datetime" | "array" | "object" | "geoPoint" | "serializedJson";
    required?: boolean;
    role?: "id";
    excludeFromIndexes?: boolean;
    serialize?: boolean;
    reviver?: (key: any, value: any) => any;
    optional?: boolean;
    onSave?: (value: any) => any;
    default?: any;
};
export interface DatastoreTransaction {
    run: () => Promise<void>;
    commit: () => Promise<void>;
    createQuery: (kindOrNamespace: string, kind?: string) => any;
    allocateIds: (key: any, amount: number) => Promise<any>;
    rollback: () => Promise<void>;
    [property: string]: any;
}
export interface DatastoreKeyOnlySelection {
    id: string;
    [key: string]: any;
}
export interface DatastoreQueryResponse<T> {
    entities: T[];
    info: {
        endCursor: string;
        moreResults: string;
    };
}
export declare type TFilterComparator = "=" | "<" | ">" | "<=" | ">=";
export declare type TFilterFunction<T, R> = (property: keyof T, comparator: TFilterComparator, value: string | number | boolean | Date) => R;
export declare type DatastoreQuery<T> = DatastoreQueryRegular<T> | DatastoreQuerySingleReturn<T>;
export interface DatastoreQueryRegular<T> {
    filter: TFilterFunction<T, DatastoreQueryRegular<T>>;
    order(property: string, options?: {
        descending: boolean;
    }): DatastoreQueryRegular<T>;
    enableCache(on: boolean): DatastoreQueryRegular<T>;
    cachingSeconds(seconds: number): DatastoreQueryRegular<T>;
    withAncestors(...args: any[]): DatastoreQueryRegular<T>;
    hasAncestor(ancestorKey: Key): DatastoreQueryRegular<T>;
    end(cursorToken: string): DatastoreQueryRegular<T>;
    limit(amount: number): DatastoreQueryRegular<T>;
    offset(number: number): DatastoreQueryRegular<T>;
    groupBy(properties: string[]): DatastoreQueryRegular<T>;
    start(nextPageCursor: any): DatastoreQueryRegular<T>;
    select(property: "__key__"): DatastoreQueryRegular<DatastoreKeyOnlySelection>;
    select(property: string | string[]): DatastoreQueryRegular<T>;
    first(): DatastoreQuerySingleReturn<T>;
    last(): DatastoreQuerySingleReturn<T>;
    randomOne(): DatastoreQuerySingleReturn<T>;
    flushQueryInCache(): Promise<any>;
    run(): Promise<DatastoreQueryResponse<T>>;
    run(throwIfNotFound: true): Promise<DatastoreQueryResponse<T>>;
}
export interface DatastoreQuerySingleReturn<T> {
    filter: TFilterFunction<T, DatastoreQuerySingleReturn<T>>;
    order(property: string, options?: {
        descending: boolean;
    }): DatastoreQuerySingleReturn<T>;
    enableCache(on: boolean): DatastoreQuerySingleReturn<T>;
    cachingSeconds(seconds: number): DatastoreQuerySingleReturn<T>;
    withAncestors(...args: any[]): DatastoreQuerySingleReturn<T>;
    hasAncestor(ancestorKey: Key): DatastoreQuerySingleReturn<T>;
    end(cursorToken: string): DatastoreQuerySingleReturn<T>;
    limit(amount: number): DatastoreQuerySingleReturn<T>;
    offset(number: number): DatastoreQuerySingleReturn<T>;
    groupBy(properties: string[]): DatastoreQuerySingleReturn<T>;
    start(nextPageCursor: any): DatastoreQuerySingleReturn<T>;
    select(property: "__key__"): DatastoreQuerySingleReturn<DatastoreKeyOnlySelection>;
    select(property: string | string[]): DatastoreQuerySingleReturn<T>;
    first(): DatastoreQuerySingleReturn<T>;
    last(): DatastoreQuerySingleReturn<T>;
    randomOne(): DatastoreQuerySingleReturn<T>;
    flushQueryInCache(): Promise<any>;
    run(): Promise<T | null>;
    run(throwIfNotFound: true): Promise<T>;
}
export interface InternalDatastoreQueryFilter {
    name: string;
    op: TFilterComparator;
    val: string | number | boolean | Date | Key;
}
export interface InternalDatastoreQueryOrder {
    name: string;
    sign: "+" | "-";
}
export interface InternalDatastoreQuery extends DatastoreQueryRegular<any> {
    filters: InternalDatastoreQueryFilter[];
    groupByVal: string[];
    kinds: string[];
    limitVal: number;
    namespace: string;
    offsetVal: number;
    orders: InternalDatastoreQueryOrder[];
    selectVal: string[];
    startVal: string;
    endVal: string;
}