// apps/web/src/app/features/hunting/hunt-page/hunt-page.component.spec.ts
import { signal } from '@angular/core';
import { TestBed } from '@angular/core/testing';
import { Router, provideRouter } from '@angular/router';
import { vi } from 'vitest';
import type { Combat, CurrentLocationResponse, HuntResult } from '../../../core/api/game-api.models';
import { CombatStore } from '../../combat/combat.store';
import { WorldStore } from '../../world/world.store';
import { HuntingStore } from '../hunting.store';
import { HuntPageComponent } from './hunt-page.component';

const southGate: CurrentLocationResponse = {
  id: 'south-gate-id',
  key: 'south-gate',
  name: 'Südtor von Graufurt',
  description: 'Der letzte sichere Schritt vor den Aschenfeldern.',
  regionKey: 'ashen-fields',
  minRecommendedLevel: 1,
  maxRecommendedLevel: 1,
  dangerLevel: 0,
  isSafe: true,
  huntingEnabled: false,
  artworkPath: '/images/backgrounds/Suedtor.png',
  connections: [],
  possibleMonsters: [],
};

const burnedRoad: CurrentLocationResponse = {
  ...southGate,
  id: 'burned-road-id',
  key: 'burned-road',
  name: 'Verbrannte Straße',
  description: 'Die erste Jagdzone zwischen Asche und zerbrochenen Wagen.',
  isSafe: false,
  huntingEnabled: true,
  artworkPath: '/images/backgrounds/Aschestrasse.png',
  possibleMonsters: ['Aschenratte', 'Straßenräuber'],
  connections: [],
};

const threeEncounterHunt: HuntResult = {
  id: 'hunt-id',
  location: { id: 'burned-road-id', key: 'burned-road', name: 'Verbrannte Straße' },
  encounters: [
    {
      id: 'encounter-1',
      monster: { key: 'ash-rat', name: 'Aschenratte', level: 1, artworkPath: '/images/enemies/AshRat.png' },
      dangerRating: 'WEAK',
    },
    {
      id: 'encounter-2',
      monster: {
        key: 'road-bandit',
        name: 'Straßenräuber',
        level: 3,
        artworkPath: '/images/enemies/RoadBandit.png',
      },
      dangerRating: 'MATCH',
    },
    {
      id: 'encounter-3',
      monster: { key: 'ash-rat', name: 'Aschenratte', level: 1, artworkPath: '/images/enemies/AshRat.png' },
      dangerRating: 'WEAK',
    },
  ],
};

const startedCombat: Combat = {
  id: 'combat-2',
  status: 'ACTIVE',
  round: 1,
  player: { name: 'Aric Duskwalker', maxHp: 100, currentHp: 100 },
  monster: {
    key: 'road-bandit',
    name: 'Straßenräuber',
    level: 3,
    maxHp: 75,
    currentHp: 75,
    artworkPath: '/images/enemies/RoadBandit.png',
  },
  events: [],
  rewards: null,
};

describe('HuntPageComponent', () => {
  let worldStore: {
    currentLocation: ReturnType<typeof signal<CurrentLocationResponse | null>>;
    load: ReturnType<typeof vi.fn>;
  };
  let huntingStore: {
    currentHunt: ReturnType<typeof signal<HuntResult | null>>;
    loading: ReturnType<typeof signal<boolean>>;
    error: ReturnType<typeof signal<string | null>>;
    encounters: () => HuntResult['encounters'];
    startHunt: ReturnType<typeof vi.fn>;
    refreshHunt: ReturnType<typeof vi.fn>;
    selectEncounter: ReturnType<typeof vi.fn>;
  };
  let combatStore: {
    combat: ReturnType<typeof signal<Combat | null>>;
    error: ReturnType<typeof signal<string | null>>;
    errorCode: ReturnType<typeof signal<string | null>>;
    startCombat: ReturnType<typeof vi.fn>;
    loadActiveCombat: ReturnType<typeof vi.fn>;
    clearError: ReturnType<typeof vi.fn>;
  };
  let router: Router;

  async function setup(location: CurrentLocationResponse | null, hunt: HuntResult | null = null) {
    worldStore = { currentLocation: signal(location), load: vi.fn(() => Promise.resolve()) };
    const currentHunt = signal(hunt);
    huntingStore = {
      currentHunt,
      loading: signal(false),
      error: signal<string | null>(null),
      encounters: () => currentHunt()?.encounters ?? [],
      startHunt: vi.fn(() => Promise.resolve()),
      refreshHunt: vi.fn(() => Promise.resolve()),
      selectEncounter: vi.fn(),
    };
    combatStore = {
      combat: signal<Combat | null>(null),
      error: signal<string | null>(null),
      errorCode: signal<string | null>(null),
      startCombat: vi.fn(() => Promise.resolve()),
      loadActiveCombat: vi.fn(() => Promise.resolve(null)),
      clearError: vi.fn(),
    };

    await TestBed.configureTestingModule({
      imports: [HuntPageComponent],
      providers: [
        provideRouter([]),
        { provide: WorldStore, useValue: worldStore },
        { provide: HuntingStore, useValue: huntingStore },
        { provide: CombatStore, useValue: combatStore },
      ],
    }).compileComponents();

    router = TestBed.inject(Router);
    vi.spyOn(router, 'navigate').mockResolvedValue(true);

    const fixture = TestBed.createComponent(HuntPageComponent);
    fixture.detectChanges();
    return fixture;
  }

  it('shows the hunting-unavailable state at the Südtor, with no Jagd beginnen button, and a working Zur Karte action', async () => {
    const fixture = await setup(southGate);
    const element = fixture.nativeElement as HTMLElement;

    expect(element.textContent).toContain('Keine Jagd verfügbar');
    expect(element.textContent).toContain('Am Südtor von Graufurt gibt es keine regulären Jagdgebiete.');
    expect(
      Array.from(element.querySelectorAll('button')).some(
        (button) => button.textContent?.trim() === 'Jagd beginnen',
      ),
    ).toBe(false);

    const toWorldButton = element.querySelector<HTMLButtonElement>('[data-hunt-to-world]');
    expect(toWorldButton?.textContent?.trim()).toBe('Zur Karte');
    toWorldButton?.click();

    expect(router.navigate).toHaveBeenCalledWith(['/world']);
  });

  it('calls startHunt when Jagd beginnen is clicked at a hunting-enabled location', async () => {
    const fixture = await setup(burnedRoad);
    const element = fixture.nativeElement as HTMLElement;

    element.querySelector<HTMLButtonElement>('[data-hunt-start]')?.click();

    expect(huntingStore.startHunt).toHaveBeenCalledOnce();
  });

  it('renders 3 encounter cards, duplicates included, with the correct data', async () => {
    const fixture = await setup(burnedRoad, threeEncounterHunt);
    const element = fixture.nativeElement as HTMLElement;

    const cards = element.querySelectorAll('app-encounter-card');
    expect(cards.length).toBe(3);
    expect(element.textContent).toMatch(/Aschenratte[\s\S]*Straßenräuber[\s\S]*Aschenratte/);
    expect(element.querySelectorAll('img[src="/images/enemies/AshRat.png"]').length).toBe(2);
    expect(element.querySelectorAll('img[src="/images/enemies/RoadBandit.png"]').length).toBe(1);
    expect(element.textContent).toContain('Stufe 1');
    expect(element.textContent).toContain('Stufe 3');
  });

  it('calls refreshHunt when Neu suchen is clicked', async () => {
    const fixture = await setup(burnedRoad, threeEncounterHunt);
    const element = fixture.nativeElement as HTMLElement;

    element.querySelector<HTMLButtonElement>('[data-hunt-refresh]')?.click();

    expect(huntingStore.refreshHunt).toHaveBeenCalledOnce();
  });

  it('starts a real combat from the encounter id (not the monster key) and navigates to /combat/:combatId', async () => {
    const fixture = await setup(burnedRoad, threeEncounterHunt);
    combatStore.startCombat.mockImplementation(async () => {
      combatStore.combat.set(startedCombat);
    });
    const element = fixture.nativeElement as HTMLElement;

    const attackButtons = Array.from(element.querySelectorAll('button')).filter(
      (button) => button.textContent?.trim() === 'Angreifen',
    );
    expect(attackButtons.length).toBe(3);

    attackButtons[1].click();
    await Promise.resolve();
    await Promise.resolve();

    expect(combatStore.startCombat).toHaveBeenCalledWith('encounter-2');
    expect(combatStore.startCombat).not.toHaveBeenCalledWith('road-bandit');
    expect(router.navigate).toHaveBeenCalledWith(['/combat', 'combat-2']);
  });

  it('does not navigate when starting the combat fails', async () => {
    const fixture = await setup(burnedRoad, threeEncounterHunt);
    const element = fixture.nativeElement as HTMLElement;

    const attackButtons = Array.from(element.querySelectorAll('button')).filter(
      (button) => button.textContent?.trim() === 'Angreifen',
    );
    attackButtons[0].click();
    await Promise.resolve();
    await Promise.resolve();

    expect(combatStore.startCombat).toHaveBeenCalledWith('encounter-1');
    expect(router.navigate).not.toHaveBeenCalledWith(['/combat', expect.anything()]);
  });

  it('rejoins the running combat when the attack is rejected with COMBAT_ALREADY_ACTIVE', async () => {
    const fixture = await setup(burnedRoad, threeEncounterHunt);
    combatStore.startCombat.mockImplementation(async () => {
      combatStore.errorCode.set('COMBAT_ALREADY_ACTIVE');
      combatStore.error.set('Du befindest dich bereits in einem Kampf.');
    });
    combatStore.loadActiveCombat.mockResolvedValue({ ...startedCombat, id: 'combat-running' });
    const element = fixture.nativeElement as HTMLElement;

    const attackButtons = Array.from(element.querySelectorAll('button')).filter(
      (button) => button.textContent?.trim() === 'Angreifen',
    );
    attackButtons[0].click();
    await Promise.resolve();
    await Promise.resolve();
    await Promise.resolve();

    expect(combatStore.loadActiveCombat).toHaveBeenCalledOnce();
    expect(router.navigate).toHaveBeenCalledWith(['/combat', 'combat-running']);
  });

  it('does not look for a running combat when the attack fails for another reason', async () => {
    const fixture = await setup(burnedRoad, threeEncounterHunt);
    combatStore.startCombat.mockImplementation(async () => {
      combatStore.errorCode.set('HUNT_ENCOUNTER_ALREADY_CONSUMED');
      combatStore.error.set('Diese Begegnung wurde bereits genutzt.');
    });
    const element = fixture.nativeElement as HTMLElement;

    const attackButtons = Array.from(element.querySelectorAll('button')).filter(
      (button) => button.textContent?.trim() === 'Angreifen',
    );
    attackButtons[0].click();
    await Promise.resolve();
    await Promise.resolve();
    await Promise.resolve();

    expect(combatStore.loadActiveCombat).not.toHaveBeenCalled();
    expect(router.navigate).not.toHaveBeenCalledWith(['/combat', expect.anything()]);
  });

  it('shows a combat-start error and dismisses it', async () => {
    const fixture = await setup(burnedRoad, threeEncounterHunt);
    combatStore.error.set('Du befindest dich bereits in einem Kampf.');
    fixture.detectChanges();

    const element = fixture.nativeElement as HTMLElement;
    const alerts = Array.from(element.querySelectorAll('[role="alert"]'));
    expect(alerts.some((alert) => alert.textContent?.includes('Du befindest dich bereits in einem Kampf.'))).toBe(
      true,
    );

    element.querySelector<HTMLButtonElement>('[data-hunt-combat-dismiss]')?.click();

    expect(combatStore.clearError).toHaveBeenCalledOnce();
  });

  it('does not trigger a hunt automatically on page entry', async () => {
    await setup(burnedRoad);

    expect(huntingStore.startHunt).not.toHaveBeenCalled();
  });

  it('loads the world state on init when no location has been loaded yet (direct navigation/hard refresh)', async () => {
    await setup(null);

    expect(worldStore.load).toHaveBeenCalledOnce();
  });

  it('does not call load again when a location is already present', async () => {
    await setup(burnedRoad);

    expect(worldStore.load).not.toHaveBeenCalled();
  });

  it('shows a loading state and disables the triggering action', async () => {
    const fixture = await setup(burnedRoad);
    huntingStore.loading.set(true);
    fixture.detectChanges();

    const element = fixture.nativeElement as HTMLElement;
    expect(element.textContent).toContain('Du suchst nach Spuren...');
    expect(element.querySelector<HTMLButtonElement>('[data-hunt-start]')?.disabled).toBe(true);
  });

  it('displays a hunting error and retries via startHunt when there is no current hunt', async () => {
    const fixture = await setup(burnedRoad);
    huntingStore.error.set('An diesem Ort gibt es keine Jagdgebiete.');
    fixture.detectChanges();

    const element = fixture.nativeElement as HTMLElement;
    expect(element.querySelector('[role="alert"]')?.textContent).toContain(
      'An diesem Ort gibt es keine Jagdgebiete.',
    );
    element.querySelector<HTMLButtonElement>('[data-hunt-retry]')?.click();

    expect(huntingStore.startHunt).toHaveBeenCalledOnce();
  });
});