mseemann/angular2-mdl

import { ComponentRef } from "@angular/core";
import { Observable, Subject } from "rxjs";

import { IMdlDialogConfiguration } from "./mdl-dialog-configuration";
import { MdlDialogReference } from "./mdl-dialog-reference";
import { MdlDialogHostComponent } from "./mdl-dialog-host.component";

/**
 * Internal representation of the dialog ref. the service
 * user should not have access to the created components
 * and internal implementations.
 */
export class InternalMdlDialogReference {
  hostDialogComponentRef: ComponentRef<MdlDialogHostComponent> | undefined;
  isModal: boolean | undefined = false;
  dialogRef: MdlDialogReference | undefined;

  private onHideSubject: Subject<unknown> = new Subject();
  private onVisibleSubject: Subject<void> = new Subject();

  constructor(public config: IMdlDialogConfiguration) {
    this.dialogRef = new MdlDialogReference(this);
  }

  // eslint-disable-next-line @typescript-eslint/no-empty-function
  closeCallback: () => void = () => {};

  get hostDialog(): MdlDialogHostComponent | undefined {
    return this.hostDialogComponentRef?.instance;
  }

  hide(data?: unknown): void {
    this.onHideSubject.next(data);
    this.onHideSubject.complete();
    this.closeCallback();
  }

  visible(): void {
    this.onVisibleSubject.next();
    this.onVisibleSubject.complete();
  }

  public onHide(): Observable<unknown> {
    return this.onHideSubject.asObservable();
  }

  public onVisible(): Observable<void> {
    return this.onVisibleSubject.asObservable();
  }
}