import * as plugins from './smartsocket.plugins'; // import interfaces import { SocketFunction, ISocketFunctionCallDataRequest, ISocketFunctionCallDataResponse, } from './smartsocket.classes.socketfunction'; // import classes import { SocketConnection } from './smartsocket.classes.socketconnection'; import { logger } from './smartsocket.logging'; import { Smartsocket } from './smartsocket.classes.smartsocket'; import { SmartsocketClient } from './smartsocket.classes.smartsocketclient'; // export interfaces export type TSocketRequestStatus = 'new' | 'pending' | 'finished'; export type TSocketRequestSide = 'requesting' | 'responding'; /** * interface of constructor of class SocketRequest */ export interface ISocketRequestConstructorOptions< T extends plugins.typedrequestInterfaces.ITypedRequest > { side: TSocketRequestSide; originSocketConnection: SocketConnection; shortId: string; funcCallData?: ISocketFunctionCallDataRequest; } /** * request object that is sent initially and may or may not receive a response */ export interface ISocketRequestDataObject { funcCallData: ISocketFunctionCallDataRequest | ISocketFunctionCallDataResponse; shortId: string; responseTimeout?: number; } // export classes export class SocketRequest { // STATIC public static getSocketRequestById( smartsocketRef: Smartsocket | SmartsocketClient, shortIdArg: string ): SocketRequest { return smartsocketRef.socketRequests.find((socketRequestArg) => { return socketRequestArg.shortid === shortIdArg; }); } // INSTANCE public status: TSocketRequestStatus = 'new'; public side: TSocketRequestSide; public shortid: string; public originSocketConnection: SocketConnection; public funcCallData: ISocketFunctionCallDataRequest; public done = plugins.smartpromise.defer>(); public smartsocketRef: Smartsocket | SmartsocketClient; constructor( smartsocketRefArg: Smartsocket | SmartsocketClient, optionsArg: ISocketRequestConstructorOptions ) { this.smartsocketRef = smartsocketRefArg; this.side = optionsArg.side; this.shortid = optionsArg.shortId; this.funcCallData = optionsArg.funcCallData; this.originSocketConnection = optionsArg.originSocketConnection; this.smartsocketRef.socketRequests.add(this); } // requesting -------------------------- /** * dispatches a socketrequest from the requesting to the receiving side */ public dispatch(): Promise> { const requestData: ISocketRequestDataObject = { funcCallData: this.funcCallData, shortId: this.shortid, }; this.originSocketConnection.socket.emit('function', requestData); return this.done.promise; } /** * handles the response that is received by the requesting side */ public async handleResponse(responseDataArg: ISocketRequestDataObject) { // logger.log('info', 'handling response!'); this.done.resolve(responseDataArg.funcCallData); this.smartsocketRef.socketRequests.remove(this); } // responding -------------------------- /** * creates the response on the responding side */ public async createResponse(): Promise { const targetSocketFunction: SocketFunction = SocketFunction.getSocketFunctionByName( this.smartsocketRef, this.funcCallData.funcName ); if (!targetSocketFunction) { logger.log('error', `There is no SocketFunction defined for ${this.funcCallData.funcName}`); return; } // logger.log('info', `invoking ${targetSocketFunction.name}`); targetSocketFunction .invoke(this.funcCallData, this.originSocketConnection) .then((resultData) => { // logger.log('info', 'got resultData. Sending it to requesting party.'); const responseData: ISocketRequestDataObject = { funcCallData: resultData, shortId: this.shortid, }; this.originSocketConnection.socket.emit('functionResponse', responseData); this.smartsocketRef.socketRequests.remove(this); }); } }