comunicapiv2/src/entities/WebSocketRequestHandler.ts

/**
 * User Web Sockets requests handler implementation
 * 
 * @author Pierre Hubert
 */

import { BaseRequestsHandler } from "./BaseRequestsHandler";
import { ActiveClient, UserWebSocketController } from "../controllers/UserWebSocketController";
import { WsMessage } from "./WsMessage";

export class UserWebSocketRequestsHandler extends BaseRequestsHandler {

	private sentResponse = false;

	constructor(public wsClient: ActiveClient, private req: WsMessage) {
		super();
	}

	public get isResponseSent() : boolean {
		return this.sentResponse;
	}
	
	protected get userID(): number {
		return this.wsClient.userID;
	}


	protected getPostParam(name: string) {
		return this.req.data[name];
	}

	public hasPostParameter(name: string): boolean {
		return this.req.data.hasOwnProperty(name)
			&& this.req.data[name] != null
			&& this.req.data[name] != undefined;
	}

	public error(code: number, message: string): void {
		this.sendResponse("error", {
			code: code,
			message: message
		});
		throw new Error("User WS error ("+code+"): "+message);
	}

	public success(message: string = ""): void {
		this.sendResponse("success", message);
	}

	public send(data: any): void {
		this.sendResponse("success", data);
	}

	public sendResponse(title: string, data: any) {
		if(this.sentResponse)
			throw new Error("Trying to send a response to a request to which a response has already been sent!")
		
		// Send the response
		UserWebSocketController.SendToClient(this.wsClient, new WsMessage({
			title: title,
			data: data,
			id: this.req.id
		}))

		this.sentResponse = true;
	}
}