import { ChangeDetectionStrategy, ChangeDetectorRef, Component, ViewChild } from '@angular/core';
import { FCanvasComponent, FCreateConnectionEvent, FFlowModule, FZoomDirective } from '@foblex/flow';
import { ExampleToolbar } from '@foblex/portal-ui';

@Component({
  selector: 'auto-snap',
  styleUrls: [ './example.scss' ],
  templateUrl: './example.html',
  changeDetection: ChangeDetectionStrategy.OnPush,
  standalone: true,
  imports: [
    FFlowModule,
    FZoomDirective,
    ExampleToolbar
  ]
})
export class Example {

  @ViewChild(FCanvasComponent, { static: true })
  public fCanvas!: FCanvasComponent;

  public connections: { outputId: string, inputId: string }[] = [];

  constructor(
    private changeDetectorRef: ChangeDetectorRef
  ) {
  }

  public addConnection(event: FCreateConnectionEvent): void {
    if(!event.fInputId) {
      return;
    }
    this.connections.push({ outputId: event.fOutputId, inputId: event.fInputId });
    this.changeDetectorRef.detectChanges();
  }

  public onLoaded(): void {
    this.fCanvas.resetScaleAndCenter(false);
  }

  public onDeleteConnections(): void {
    this.connections = [];
    this.changeDetectorRef.detectChanges();
  }
}