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/* eslint-disable @bitrix24/bitrix24-rules/no-native-events-binding */
import { ConnectionType } from '../../../client/src/consts';
import { AbstractConnector } from './base';
import { getDateForLog } from '../../../util/src/util';
export class WebSocketConnector extends AbstractConnector
{
socket: ?WebSocket;
connectionType = ConnectionType.WebSocket;
onSocketOpenHandler = this.onSocketOpen.bind(this);
onSocketCloseHandler = this.onSocketClose.bind(this);
onSocketErrorHandler = this.onSocketError.bind(this);
onSocketMessageHandler = this.onSocketMessage.bind(this);
connect()
{
if (this.socket)
{
if (this.socket.readyState === WebSocket.OPEN || this.socket.readyState === WebSocket.CONNECTING)
{
return;
}
this.socket.removeEventListener('open', this.onSocketOpenHandler);
this.socket.removeEventListener('close', this.onSocketCloseHandler);
this.socket.removeEventListener('error', this.onSocketErrorHandler);
this.socket.removeEventListener('message', this.onSocketMessageHandler);
this.socket.close();
this.socket = null;
}
this.createSocket();
}
disconnect(code, message)
{
if (this.socket !== null)
{
this.socket.removeEventListener('open', this.onSocketOpenHandler);
this.socket.removeEventListener('close', this.onSocketCloseHandler);
this.socket.removeEventListener('error', this.onSocketErrorHandler);
this.socket.removeEventListener('message', this.onSocketMessageHandler);
this.socket.close(code, message);
}
this.socket = null;
this.disconnectCode = code;
this.disconnectReason = message;
this.connected = false;
}
createSocket()
{
if (this.socket)
{
throw new Error('Socket already exists');
}
if (!this.path)
{
throw new Error('Websocket connection path is not defined');
}
this.socket = new WebSocket(this.path);
this.socket.binaryType = 'arraybuffer';
this.socket.addEventListener('open', this.onSocketOpenHandler);
this.socket.addEventListener('close', this.onSocketCloseHandler);
this.socket.addEventListener('error', this.onSocketErrorHandler);
this.socket.addEventListener('message', this.onSocketMessageHandler);
}
/**
* Sends some data to the server via websocket connection.
* @param {ArrayBuffer} buffer Data to send.
*/
send(buffer): boolean
{
if (!this.socket || this.socket.readyState !== 1)
{
console.error(`${getDateForLog()}: Pull: WebSocket is not connected`);
return false;
}
this.socket.send(buffer);
return true;
}
onSocketOpen()
{
this.connected = true;
}
onSocketClose(e)
{
this.socket = null;
this.disconnectCode = e.code;
this.disconnectReason = e.reason;
this.connected = false;
}
onSocketError(e)
{
this.callbacks.onError(e);
}
onSocketMessage(e)
{
this.callbacks.onMessage(e.data);
}
destroy()
{
if (this.socket)
{
this.socket.close();
this.socket = null;
}
}
}