import { HttpErrorResponse } from '@angular/common/http';
import { TestBed } from '@angular/core/testing';
import { Subject, of, throwError } from 'rxjs';
import { vi } from 'vitest';
import { GameApiService } from '../../core/api/game-api.service';
import { LocalLocationStore } from './local-location.store';
import { WorldStore } from './world.store';

const trackResult = {
  interactionKey: 'inspect-tracks',
  title: 'Verdächtige Spuren',
  text: 'Frische Stiefelabdrücke führen nach Osten.',
};

function setup(api: Partial<GameApiService> = {}, world: Partial<WorldStore> = {}) {
  TestBed.configureTestingModule({
    providers: [
      LocalLocationStore,
      { provide: GameApiService, useValue: api },
      { provide: WorldStore, useValue: { load: vi.fn(), ...world } },
    ],
  });

  return TestBed.inject(LocalLocationStore);
}

describe('LocalLocationStore', () => {
  it('loads the location through the world store rather than a second fetch path', async () => {
    const load = vi.fn().mockResolvedValue(undefined);
    const store = setup({}, { load });

    await store.load();

    expect(load).toHaveBeenCalledTimes(1);
  });

  it('opens the panel with the result the server returned', async () => {
    const store = setup({
      runLocationInteraction: vi.fn().mockReturnValue(of(trackResult)),
    });

    await store.runInteraction('inspect-tracks');

    expect(store.interactionResult()).toEqual(trackResult);
    expect(store.interactionError()).toBeNull();
    expect(store.interactionOpen()).toBe(true);
  });

  it('marks only the running interaction as pending', async () => {
    const pending = new Subject<typeof trackResult>();
    const store = setup({
      runLocationInteraction: vi.fn().mockReturnValue(pending),
    });

    const running = store.runInteraction('inspect-tracks');
    expect(store.interactionPending()).toBe('inspect-tracks');

    pending.next(trackResult);
    pending.complete();
    await running;

    expect(store.interactionPending()).toBeNull();
  });

  it('ignores a second interaction while one is still running', async () => {
    const pending = new Subject<typeof trackResult>();
    const runLocationInteraction = vi.fn().mockReturnValue(pending);
    const store = setup({ runLocationInteraction });

    const running = store.runInteraction('inspect-tracks');
    await store.runInteraction('search-abandoned-wagon');

    expect(runLocationInteraction).toHaveBeenCalledTimes(1);
    expect(runLocationInteraction).toHaveBeenCalledWith('inspect-tracks');

    pending.next(trackResult);
    pending.complete();
    await running;
  });

  it('translates a rejected interaction into a readable message without navigating', async () => {
    const store = setup({
      runLocationInteraction: vi.fn().mockReturnValue(
        throwError(
          () =>
            new HttpErrorResponse({
              status: 400,
              error: { code: 'LOCATION_INTERACTION_UNAVAILABLE' },
            }),
        ),
      ),
    });

    await store.runInteraction('inspect-tracks');

    expect(store.interactionError()).toBe("There's nothing to discover here.");
    expect(store.interactionResult()).toBeNull();
    expect(store.interactionOpen()).toBe(true);
  });

  it('falls back to a generic message for an unmapped failure', async () => {
    const store = setup({
      runLocationInteraction: vi
        .fn()
        .mockReturnValue(throwError(() => new HttpErrorResponse({ status: 500 }))),
    });

    await store.runInteraction('inspect-tracks');

    expect(store.interactionError()).toBe("This action isn't possible right now.");
  });

  it('closes the panel without clearing the location', async () => {
    const store = setup({
      runLocationInteraction: vi.fn().mockReturnValue(of(trackResult)),
    });

    await store.runInteraction('inspect-tracks');
    store.closeInteraction();

    expect(store.interactionOpen()).toBe(false);
    expect(store.interactionResult()).toBeNull();
  });

  it('resolves the hotspot an action mirrors', () => {
    const store = setup();

    expect(
      store.interactionKeyOf({
        key: 'investigate-tracks',
        label: 'Spuren untersuchen',
        type: 'INVESTIGATE',
        iconKey: 'investigate',
        enabled: true,
        poiKey: 'inspect-tracks',
      }),
    ).toBe('inspect-tracks');
  });
});