import { provideHttpClient } from '@angular/common/http';
import { provideHttpClientTesting } from '@angular/common/http/testing';
import { TestBed } from '@angular/core/testing';
import { provideRouter } from '@angular/router';
import { AgentStreamComponent } from './agent-stream.component';

describe('action card text selection', () => {
  let component: AgentStreamComponent;
  let header: HTMLDivElement;
  let outside: HTMLDivElement;

  beforeEach(() => {
    TestBed.configureTestingModule({
      providers: [provideHttpClient(), provideHttpClientTesting(), provideRouter([])]
    });
    component = TestBed.createComponent(AgentStreamComponent).componentInstance;
    header = document.createElement('div');
    header.textContent = '点击元素 Projects';
    header.addEventListener('click', event => component.toggleActionExpanded('action-1', event));
    outside = document.createElement('div');
    outside.textContent = '其他步骤';
    document.body.append(header, outside);
    window.getSelection()?.removeAllRanges();
  });

  afterEach(() => {
    window.getSelection()?.removeAllRanges();
    header.remove();
    outside.remove();
  });

  function selectText(element: HTMLElement): void {
    const range = document.createRange();
    range.selectNodeContents(element);
    window.getSelection()?.addRange(range);
  }

  it('keeps selected header text and the expanded card in place for copying', () => {
    component.toggleActionExpanded('action-1');
    selectText(header);
    header.click();
    expect(component.isActionExpanded('action-1')).toBeTrue();
    expect(window.getSelection()?.toString()).toBe('点击元素 Projects');
  });

  it('expands and collapses normally without selected text', () => {
    header.click();
    expect(component.isActionExpanded('action-1')).toBeTrue();
    header.click();
    expect(component.isActionExpanded('action-1')).toBeFalse();
  });

  it('allows another card to open while unrelated text is selected', () => {
    selectText(outside);
    header.click();
    expect(component.isActionExpanded('action-1')).toBeTrue();
  });
});