import { Component, computed, inject } from '@angular/core';
import { PageShellComponent } from '@shared/layout/page-shell/page-shell.component';
import { AlertComponent } from '@shared/ui/alert/alert.component';
import { ASYNC } from '@shared/ui/async/async.component';
import { map } from '@shared/application/remote-data';
import { BigProfileStore } from '@registratie/application/big-profile.store';
import { HerregistratieWizardComponent } from '@herregistratie/ui/herregistratie-wizard/herregistratie-wizard.component';

/** A whole new page built from existing building blocks. Eligibility is a
    SERVER-computed decision read from the aggregated view — the frontend renders
    it, it does not recompute the rule. */
@Component({
  selector: 'app-herregistratie-page',
  imports: [PageShellComponent, AlertComponent, ...ASYNC, HerregistratieWizardComponent],
  template: `
    <app-page-shell i18n-heading="@@herregistratie.heading" heading="Herregistratie aanvragen" backLink="/dashboard">
      <app-async [data]="eligibility()">
        <ng-template appAsyncLoaded let-eligible>
          @if (eligible) {
            <app-alert type="info" i18n="@@herregistratie.eligible">
              Uw huidige registratie verloopt binnenkort. Vraag tijdig herregistratie aan.
            </app-alert>
            <div class="app-section">
              <app-herregistratie-wizard />
            </div>
          } @else {
            <app-alert type="warning" i18n="@@herregistratie.notEligible">
              Voor uw huidige registratiestatus is herregistratie niet mogelijk.
            </app-alert>
          }
        </ng-template>
      </app-async>
    </app-page-shell>
  `,
})
export class HerregistratiePage {
  private store = inject(BigProfileStore);
  // The eligibility decision comes from the server (decisions block), not a
  // client-side rule. The UI just reads the boolean.
  protected eligibility = computed(() =>
    map(this.store.decisions(), (d) => d.eligibleForHerregistratie),
  );
}