import { Component, OnInit, Input, forwardRef, OnDestroy } from '@angular/core';
import { FormGroup } from '@angular/forms';
import { AngularPConnectData, AngularPConnectService } from '@pega/angular-sdk-components';
import { ComponentMapperComponent } from '@pega/angular-sdk-components';

@Component({
  selector: 'app-two-column-page',
  templateUrl: './two-column-page.component.html',
  styleUrls: ['./two-column-page.component.scss'],
  imports: [forwardRef(() => ComponentMapperComponent)]
})
export class TwoColumnPageComponent implements OnInit, OnDestroy {
  @Input() pConn$: typeof PConnect;
  @Input() formGroup$: FormGroup;

  // Used with AngularPConnect
  angularPConnectData: AngularPConnectData = {};

  constructor(private angularPConnect: AngularPConnectService) {}

  ngOnInit(): void {
    this.angularPConnectData = this.angularPConnect.registerAndSubscribeComponent(this, this.onStateChange);
  }

  ngOnDestroy(): void {
    if (this.angularPConnectData.unsubscribeFn) {
      this.angularPConnectData.unsubscribeFn();
    }
  }

  onStateChange() {
    // Should always check the bridge to see if the component should update itself (re-render)
    const bUpdateSelf = this.angularPConnect.shouldComponentUpdate(this);

    // ONLY call updateSelf when the component should update
    //    AND removing the "gate" that was put there since shouldComponentUpdate
    //      should be the real "gate"
    if (bUpdateSelf) {
      /* empty */
    }
  }
}