import { signal, WritableSignal } from '@angular/core';
import { TestBed } from '@angular/core/testing';
import { Router, provideRouter } from '@angular/router';
import { CharacterResponse } from './core/api/game-api.models';
import { WorldStore } from './features/world/world.store';
import { AppShellComponent } from './layout/app-shell/app-shell.component';
import { routes } from './app.routes';

describe('App', () => {
  let character: WritableSignal<CharacterResponse | null>;
  let currentLocation: WritableSignal<null>;
  let selectedConnection: WritableSignal<null>;

  beforeEach(async () => {
    character = signal<CharacterResponse | null>(null);
    currentLocation = signal(null);
    selectedConnection = signal(null);

    await TestBed.configureTestingModule({
      imports: [AppShellComponent],
      providers: [
        provideRouter([
          { path: 'location', children: [] },
          { path: 'world', children: [] },
          { path: 'hunt', children: [] },
          { path: 'inventory', children: [] },
        ]),
        {
          provide: WorldStore,
          useValue: { character, currentLocation, selectedConnection },
        },
      ],
    }).compileComponents();
  });

  it('renders the reusable game shell with Karte and Jagd available', async () => {
    const fixture = TestBed.createComponent(AppShellComponent);
    const router = TestBed.inject(Router);
    await router.navigateByUrl('/world');
    fixture.detectChanges();
    await fixture.whenStable();

    const element = fixture.nativeElement as HTMLElement;
    expect(element.querySelector('app-top-bar')).not.toBeNull();
    expect(element.querySelector('app-side-navigation')).not.toBeNull();
    expect(element.querySelector('main')).not.toBeNull();
    expect(element.querySelector('app-game-footer')).not.toBeNull();

    const mapButton = element.querySelector<HTMLButtonElement>('[data-navigation="world"]');
    expect(mapButton).not.toBeNull();
    expect(mapButton?.disabled).toBe(false);
    expect(mapButton?.getAttribute('aria-current')).toBe('page');
    expect(mapButton?.getAttribute('aria-label')).toBe('Karte');

    const huntButton = element.querySelector<HTMLButtonElement>('[data-navigation="hunt"]');
    expect(huntButton).not.toBeNull();
    expect(huntButton?.disabled).toBe(false);
    expect(huntButton?.getAttribute('aria-current')).toBeNull();
    expect(huntButton?.getAttribute('aria-label')).toBe('Jagd');

    const inventoryButton = element.querySelector<HTMLButtonElement>(
      '[data-navigation="inventory"]',
    );
    expect(inventoryButton).not.toBeNull();
    expect(inventoryButton?.disabled).toBe(false);
    expect(inventoryButton?.getAttribute('aria-label')).toBe('Inventar');

    for (const destination of ['quests', 'character']) {
      expect(
        element.querySelector<HTMLButtonElement>(`[data-navigation="${destination}"]`)?.disabled,
      ).toBe(true);
    }

    expect(element.textContent).not.toContain('Shop');
  });

  it('offers Ort as the first navigation entry, marked active on /location', async () => {
    const fixture = TestBed.createComponent(AppShellComponent);
    const router = TestBed.inject(Router);
    await router.navigateByUrl('/location');
    fixture.detectChanges();
    await fixture.whenStable();

    const element = fixture.nativeElement as HTMLElement;
    const entries = element.querySelectorAll<HTMLButtonElement>('[data-navigation]');
    expect([...entries].map((entry) => entry.dataset['navigation'])).toEqual([
      'location',
      'world',
      'hunt',
      'quests',
      'inventory',
      'character',
    ]);

    const locationButton = element.querySelector<HTMLButtonElement>(
      '[data-navigation="location"]',
    );
    expect(locationButton?.disabled).toBe(false);
    expect(locationButton?.getAttribute('aria-label')).toBe('Ort');
    expect(locationButton?.getAttribute('aria-current')).toBe('page');
    expect(
      element.querySelector('[data-navigation="world"]')?.getAttribute('aria-current'),
    ).toBeNull();
  });

  it('drops the shell context rail on /location, where the screen brings its own', async () => {
    const fixture = TestBed.createComponent(AppShellComponent);
    const router = TestBed.inject(Router);
    await router.navigateByUrl('/location');
    fixture.detectChanges();
    await fixture.whenStable();

    expect(fixture.nativeElement.querySelector('app-context-panel')).toBeNull();
  });

  it('drops the shell context rail on /inventory, which needs all three of its own columns', async () => {
    const fixture = TestBed.createComponent(AppShellComponent);
    const router = TestBed.inject(Router);
    await router.navigateByUrl('/inventory');
    fixture.detectChanges();
    await fixture.whenStable();

    expect(fixture.nativeElement.querySelector('app-context-panel')).toBeNull();
  });

  it('keeps the shell context rail on the map', async () => {
    const fixture = TestBed.createComponent(AppShellComponent);
    const router = TestBed.inject(Router);
    await router.navigateByUrl('/world');
    fixture.detectChanges();
    await fixture.whenStable();

    expect(fixture.nativeElement.querySelector('app-context-panel')).not.toBeNull();
  });

  it('marks Jagd as the active navigation entry while on /hunt', async () => {
    const fixture = TestBed.createComponent(AppShellComponent);
    const router = TestBed.inject(Router);
    await router.navigateByUrl('/hunt');
    fixture.detectChanges();
    await fixture.whenStable();

    const element = fixture.nativeElement as HTMLElement;
    const mapButton = element.querySelector<HTMLButtonElement>('[data-navigation="world"]');
    const huntButton = element.querySelector<HTMLButtonElement>('[data-navigation="hunt"]');

    expect(huntButton?.getAttribute('aria-current')).toBe('page');
    expect(mapButton?.getAttribute('aria-current')).toBeNull();
  });

  it('renders loaded character values supplied by the WorldStore', () => {
    character.set({
      id: 'character-id',
      name: 'Mara Ashfall',
      level: 7,
      experience: 320,
      silver: 150,
      currentHp: 52,
      maxHp: 80,
      attack: 12,
      hpRegenPerSecond: 1,
      hpRegenSince: null,
      currentLocation: { id: 'location-id', key: 'south-gate', name: 'Südtor von Graufurt' },
    });
    const fixture = TestBed.createComponent(AppShellComponent);
    fixture.detectChanges();

    expect(fixture.nativeElement.querySelector('app-top-bar')?.textContent).toContain(
      'Mara Ashfall',
    );
    expect(fixture.nativeElement.querySelector('app-top-bar')?.textContent).toContain('Stufe 7');
    expect(fixture.nativeElement.querySelector('app-top-bar')?.textContent).toContain('52 / 80');
    expect(fixture.nativeElement.querySelector('app-top-bar')?.textContent).toContain('150');
    expect(fixture.nativeElement.querySelector('app-top-bar')?.textContent).toContain('320');
  });

  it('lands root and unknown routes on the place the character is standing in', () => {
    expect(routes.find((route) => route.path === '')).toMatchObject({
      pathMatch: 'full',
      redirectTo: 'location',
    });
    expect(routes.find((route) => route.path === '**')).toMatchObject({ redirectTo: 'location' });
  });

  it('keeps the map and hunt routes where they were', () => {
    const shellChildren = routes.find((route) => route.children)?.children ?? [];

    expect(shellChildren.map((route) => route.path)).toEqual(
      expect.arrayContaining(['location', 'world', 'hunt']),
    );
  });
});