/**
 * 项目中有些介于随手一写和公开定义之间的类型定义，
 * 有多个文件需要用到的，可以放此处。
 */
import { Observable } from 'rxjs/Observable';
import { Database, SchemaDef } from '../db';
export declare type GeneralSchemaDef = SchemaDef<{}>;
export declare type SchemaColl = {
    schema: GeneralSchemaDef;
    name: string;
    pkName: string;
}[];
export declare type Dict<T> = {
    [key: string]: T;
};
export declare type Omit<T, U> = Pick<T, Exclude<keyof T, U>>;
export declare type TableInfo = {
    tabName: string;
    pkName: string;
};
export interface PagingQuery {
    page: number;
    count: number;
}
export interface UrlPagingQuery extends PagingQuery {
}
export interface SqlPagingQuery {
    skip: number;
    limit: number;
}
export interface ParsedWSMsg {
    method: string;
    id: string;
    type: string;
    data: any;
    source: string;
}
export declare type WSMsgToDBHandler = (msg: ParsedWSMsg, db: Database) => Observable<any>;
export declare type WSMsgHandler = (msg: ParsedWSMsg) => Observable<any>;
export declare type Variables = {
    [key: string]: any;
};
export interface GraphQLRequestContext {
    query: string;
    variables?: Variables;
}
export declare type GraphQLError = {
    message: string;
    path?: Array<string | number>;
    locations?: Array<{
        line: number;
        column: number;
    }>;
    extensions?: {
        [key: string]: any;
    };
};
export interface GraphQLResponse<T = {
    [key: string]: any;
}> {
    data?: T | null;
    errors?: GraphQLError[];
    extensions?: any;
    status: number;
    [key: string]: any;
}
export interface GraphQLRequest {
    header?: Headers;
    credentials?: RequestCredentials;
}
export interface GraphQLClientOption {
    host: string;
    headers: object;
}
export interface GraphQLMeta {
    result: unknown;
    variables: unknown;
}
export declare type GraphQLQuery = string | (string & GraphQLMeta);
export declare type GraphQLVariables<Q, V extends Variables> = Q extends GraphQLMeta ? Q['variables'] : V;
export declare type GraphQLResult<Q, R> = Q extends GraphQLMeta ? Q['result'] : R;