import { Component } from '@angular/core';
import { ComponentFixture, TestBed } from '@angular/core/testing';
import { By } from '@angular/platform-browser';

import { <%= classify(name) %> } from './<%= dasherize(name) %>';

@Component({
  imports: [<%= classify(name) %>],
  template: `
    <<%= selector %> triggerLabel="Details" title="Extra details" content="Context text">
      <a href="/help">Help link</a>
    </<%= selector %>>
  `,
})
class HostComponent {}

describe('<%= classify(name) %>', () => {
  let fixture: ComponentFixture<HostComponent>;
  let host: HTMLElement;

  beforeEach(async () => {
    await TestBed.configureTestingModule({
      imports: [HostComponent],
    }).compileComponents();

    fixture = TestBed.createComponent(HostComponent);
    fixture.detectChanges();
    host = fixture.nativeElement as HTMLElement;
  });

  it('renders a closed disclosure trigger for non-modal dialog content', () => {
    const trigger = host.querySelector<HTMLButtonElement>('.popover__trigger');

    expect(trigger?.textContent?.trim()).toBe('Details');
    expect(trigger?.getAttribute('aria-haspopup')).toBe('dialog');
    expect(trigger?.getAttribute('aria-expanded')).toBe('false');
    expect(host.querySelector('[role="dialog"]')).toBeNull();
  });

  it('opens and closes the popover from trigger, close button, and Escape', () => {
    const triggerDebug = fixture.debugElement.query(By.css('.popover__trigger'));
    const trigger = triggerDebug.nativeElement as HTMLButtonElement;

    trigger.click();
    fixture.detectChanges();

    let panel = host.querySelector<HTMLElement>('[role="dialog"]');
    expect(trigger.getAttribute('aria-expanded')).toBe('true');
    expect(trigger.getAttribute('aria-controls')).toBe(panel?.id);
    expect(panel?.getAttribute('aria-labelledby')).toBeTruthy();
    expect(panel?.textContent).toContain('Extra details');
    expect(panel?.textContent).toContain('Help link');

    panel?.dispatchEvent(new KeyboardEvent('keydown', { key: 'Escape', bubbles: true }));
    fixture.detectChanges();

    expect(trigger.getAttribute('aria-expanded')).toBe('false');
    expect(host.querySelector('[role="dialog"]')).toBeNull();

    trigger.click();
    fixture.detectChanges();

    panel = host.querySelector<HTMLElement>('[role="dialog"]');
    panel?.querySelector<HTMLButtonElement>('.popover__close')?.click();
    fixture.detectChanges();

    expect(host.querySelector('[role="dialog"]')).toBeNull();
  });
});