import { TestBed } from '@angular/core/testing';
import { HttpErrorResponse } from '@angular/common/http';
import { of, throwError } from 'rxjs';
import { SchoolApi } from '../core/school-api';
import { EntityEditor } from './entity-editor';
import { EditorTarget, Show } from '../core/api-models';

describe('EntityEditor', () => {
  const api = { saveSchool: vi.fn(), saveGroup: vi.fn(), saveDancer: vi.fn(), saveShow: vi.fn() };
  beforeEach(() => {
    vi.resetAllMocks();
    TestBed.configureTestingModule({
      imports: [EntityEditor],
      providers: [{ provide: SchoolApi, useValue: api }],
    });
  });
  function editor(target: EditorTarget, shows: Show[] = []) {
    const fixture = TestBed.createComponent(EntityEditor);
    fixture.componentRef.setInput('target', target);
    fixture.componentRef.setInput('schoolId', 7);
    fixture.componentRef.setInput('shows', shows);
    fixture.componentInstance.ngOnInit();
    return fixture.componentInstance;
  }

  it('rejects blank names and invalid age ranges before calling the API', async () => {
    const component = editor({ kind: 'group' });
    component.name = '  ';
    expect(component.validDetails()).toBe(false);
    component.name = 'Teens';
    component.startAge = 18;
    component.endAge = 12;
    await component.save();
    expect(api.saveGroup).not.toHaveBeenCalled();
    component.endAge = 18.5;
    expect(component.validDetails()).toBe(false);
  });

  it('does not accept a future birth date', () => {
    const component = editor({ kind: 'dancer' });
    component.name = 'Sam';
    component.date = '2999-01-01';
    expect(component.validDetails()).toBe(false);
  });

  it('trims the school name and emits saved only after success', async () => {
    api.saveSchool.mockReturnValue(of({ id: 0 }));
    const component = editor({ kind: 'school' });
    component.name = '  Studio  ';
    const saved = vi.fn();
    component.saved.subscribe(saved);
    await component.save();
    expect(api.saveSchool).toHaveBeenCalledWith({ name: 'Studio' }, undefined, undefined);
    expect(saved).toHaveBeenCalledOnce();
    expect(component.busy()).toBe(false);
  });

  it('retains the revision from opening the editor across background refreshes', async () => {
    api.saveDancer.mockReturnValue(of({ id: 3 }));
    const fixture = TestBed.createComponent(EntityEditor);
    fixture.componentRef.setInput('target', {
      kind: 'dancer',
      value: { id: 3, name: 'Sam', birthDate: '2010-01-01' },
    });
    fixture.componentRef.setInput('schoolId', 7);
    fixture.componentRef.setInput('revision', 4);
    const component = fixture.componentInstance;
    component.ngOnInit();
    fixture.componentRef.setInput('revision', 5);
    component.name = 'Sam edited';
    await component.save();
    expect(api.saveDancer).toHaveBeenCalledWith(
      7,
      { name: 'Sam edited', birthDate: '2010-01-01' },
      3,
      4,
    );
  });

  it('keeps the editor open and preserves input when saving fails', async () => {
    api.saveSchool.mockReturnValue(throwError(() => new HttpErrorResponse({ status: 0 })));
    const component = editor({ kind: 'school' });
    component.name = 'Studio';
    const saved = vi.fn();
    component.saved.subscribe(saved);
    await component.save();
    expect(saved).not.toHaveBeenCalled();
    expect(component.name).toBe('Studio');
    expect(component.error()).toContain('niet bereikbaar');
    expect(component.busy()).toBe(false);
  });
  const show: Show = {
    id: 3,
    name: 'Summer',
    preferredDayParts: 2,
    finalized: false,
    violations: [],
    dayParts: [
      { date: '2027-06-01', type: 'AFTERNOON', danceGroupIds: [4] },
      { date: '2027-06-02', type: 'AFTERNOON', danceGroupIds: [4] },
    ],
    appearances: { REGULAR: 2, SELECTION: 2, PRE_SCHOOLER: 1, SHOW_CASE: 2, PRE_EDUCATION: 2 },
  };

  it('defaults preferredDayParts to two and rejects duplicate dated dayparts and fractional preferredDayParts', () => {
    const component = editor({ kind: 'show' });
    component.name = 'Show';
    expect(component.validDetails()).toBe(true);
    component.addPart();
    component.dayParts[0].date = '2027-06-01';
    component.addPart();
    component.dayParts[1].date = '2027-06-02';
    component.addPart();
    component.dayParts[2].date = '2027-06-03';
    expect(component.preferredDayParts).toBe(2);
    expect(component.validDetails()).toBe(true);
    component.dayParts[2].date = '2027-06-02';
    expect(component.validDetails()).toBe(false);
    component.dayParts[2].date = '2027-06-03';
    component.preferredDayParts = 1.5;
    expect(component.validDetails()).toBe(false);
  });

  it('preserves an explicitly chosen preferredDayParts when adding dayparts to a new show', async () => {
    api.saveShow.mockReturnValue(of(show));
    const component = editor({ kind: 'show' });
    component.name = 'Show';
    component.addPart();
    component.dayParts[0].date = '2027-06-01';
    component.addPart();
    component.dayParts[1].date = '2027-06-02';
    component.preferredDayParts = 1;
    component.addPart();
    component.dayParts[2].date = '2027-06-03';
    expect(component.preferredDayParts).toBe(1);
    await component.save();
    expect(api.saveShow).toHaveBeenCalledWith(
      7,
      expect.objectContaining({ preferredDayParts: 1 }),
      undefined,
      undefined,
    );
  });

  it('retains preferredDayParts when dayparts are removed so it can be explicitly corrected', () => {
    const component = editor({ kind: 'show', value: show });
    component.addPart();
    component.dayParts[2].date = '2027-06-03';
    expect(component.preferredDayParts).toBe(2);
    component.removePart(2);
    component.removePart(1);
    expect(component.preferredDayParts).toBe(2);
    expect(component.validDetails()).toBe(true);
    component.preferredDayParts = 1;
    expect(component.validDetails()).toBe(true);
  });

  it('allows cancelling an invalidating edit and skips warnings for name-only edits', async () => {
    api.saveShow.mockReturnValue(of(show));
    const confirm = vi.spyOn(window, 'confirm').mockReturnValue(false);
    try {
      const component = editor({ kind: 'show', value: show });
      component.preferredDayParts = 1;
      await component.save();
      expect(confirm).toHaveBeenCalledWith(expect.stringContaining('Summer'));
      expect(api.saveShow).not.toHaveBeenCalled();
      component.preferredDayParts = 2;
      confirm.mockClear();
      component.name = 'Renamed';
      await component.save();
      expect(confirm).not.toHaveBeenCalled();
      expect(api.saveShow).toHaveBeenCalledOnce();
    } finally {
      confirm.mockRestore();
    }
  });
  it('names affected shows before adding a group and allows cancellation', async () => {
    const confirm = vi.spyOn(window, 'confirm').mockReturnValue(false);
    try {
      const component = editor({ kind: 'group' }, [show]);
      component.name = 'New group';
      await component.save();
      expect(confirm).toHaveBeenCalledWith(expect.stringContaining('Summer'));
      expect(api.saveGroup).not.toHaveBeenCalled();
    } finally {
      confirm.mockRestore();
    }
  });

  it('displays one editable preferredDayParts field with a default of one for a one-daypart show', async () => {
    // jsdom does not implement native dialog opening.
    const descriptor = Object.getOwnPropertyDescriptor(HTMLDialogElement.prototype, 'showModal');
    Object.defineProperty(HTMLDialogElement.prototype, 'showModal', {
      configurable: true,
      value: () => undefined,
    });
    try {
      const fixture = TestBed.createComponent(EntityEditor);
      fixture.componentRef.setInput('target', { kind: 'show' });
      fixture.componentInstance.addPart();
      fixture.detectChanges();
      await fixture.whenStable();
      fixture.detectChanges();
      const element = fixture.nativeElement as HTMLElement;
      const inputs = Array.from(element.querySelectorAll<HTMLInputElement>('input[type="number"]'));
      expect(inputs).toHaveLength(1);
      expect(inputs.every((input) => !input.disabled && input.value === '1')).toBe(true);
    } finally {
      if (descriptor) Object.defineProperty(HTMLDialogElement.prototype, 'showModal', descriptor);
      else Reflect.deleteProperty(HTMLDialogElement.prototype, 'showModal');
    }
  });
});