export interface IConnection{
    endpoint: string;
    autoPair?: boolean;
}
export class Connection
{
    public ws! : WebSocket;
    public endpoint : URL;
    public autoPair : boolean = false;
    public connected : boolean = false;
    constructor(options: IConnection){
        this.endpoint = new URL(options.endpoint);
        this.autoPair = options.autoPair || false;
    }
    public connect()
    {
        this.ws = new WebSocket(this.endpoint.href);
        this.addWSEvents();
    }
    public disconnect()
    {
        this.ws.close();
    }
    public addWSEvents()
    {
        this.ws.addEventListener("open", () => this.eventOpen());
        this.ws.addEventListener("close", () => this.eventClose());
        this.ws.addEventListener("error", () => this.eventError());
        this.ws.addEventListener("message", ({data}) => this.eventMessage(data as string | ArrayBuffer));
    }
    private eventOpen()
    {
        this.connected = true;
        for (const callback of this.activeConnectionEvent) {
            callback(void 0);
        }
    }
    private eventClose()
    {
        this.connected = false;
    }
    private eventError()
    {
        this.connected = false;
    }
    private recaivePackEvent : ((data:any) => any)[] = [];
    public onRecaivePack(func:(data:any) => any)
    {
        this.recaivePackEvent.push(func);
    }
    private activeConnectionEvent : Function[] = [];
    public onActive(func:Function)
    {
        if(this.connected)
        {
            func()
        }else{
            this.activeConnectionEvent.push(func);
        }
    }
    private eventMessage(data: string | ArrayBuffer)
    {
        if(typeof data == "string")
        {
            let $data = JSON.parse(data);
            for (const callback of this.recaivePackEvent) {
                callback($data);
            }
        }
    }
    public tranferToServer(data:any)
    {
        if(this.connected)
        {
            this.ws.send(JSON.stringify(data));
        }
    }
}