import 'reflect-metadata';
import { ForbiddenException } from '@nestjs/common';
import { describe, expect, it, vi } from 'vitest';
import { ROLES_KEY } from '../auth/decorators/roles.decorator';
import { MODULE_MANAGE_KEY, MODULE_SLUG_KEY } from '../module-registry/module.guard';
import { DomainsController } from './domains.controller';

const proto = DomainsController.prototype as any;
const req = (tenantId?: string) => ({ tenantId }) as any;
/** Aufrufer mit der Freigabestufe Verwalten (setzt sonst der ModuleGuard). */
const managerReq = (tenantId?: string) => ({ tenantId, moduleAccessLevel: 'MANAGE' }) as any;
const userReq = (tenantId?: string) => ({ tenantId, moduleAccessLevel: 'USE' }) as any;

const MANAGE_HANDLERS = [
  'getSettings',
  'saveSettings',
  'testConnection',
  'createCustomer',
  'updateCustomer',
  'deleteCustomer',
  'createContact',
  'assignContacts',
  'checkAvailability',
  'createOrder',
  'submitOrder',
  'cancelOrder',
];
const USE_HANDLERS = [
  'getStatus',
  'listCustomers',
  'listContacts',
  'listDomains',
  'listOrders',
  'refreshOrders',
];

function makeDirectory() {
  return {
    listCustomers: vi.fn(async (..._a: unknown[]) => []),
    createCustomer: vi.fn(async (..._a: unknown[]) => ({})),
    updateCustomer: vi.fn(async (..._a: unknown[]) => ({})),
    deleteCustomer: vi.fn(async (..._a: unknown[]) => ({})),
    listContacts: vi.fn(async (..._a: unknown[]) => ({})),
    createContact: vi.fn(async (..._a: unknown[]) => ({})),
    assignContacts: vi.fn(async (..._a: unknown[]) => ({})),
    listDomains: vi.fn(async (..._a: unknown[]) => ({})),
  };
}

function makeOrders() {
  return {
    checkAvailability: vi.fn(async (..._a: unknown[]) => ({})),
    listOrders: vi.fn(async (..._a: unknown[]) => []),
    createOrder: vi.fn(async (..._a: unknown[]) => ({})),
    refreshOpenOrders: vi.fn(async (..._a: unknown[]) => []),
    submitOrder: vi.fn(async (..._a: unknown[]) => ({})),
    cancelOrder: vi.fn(async (..._a: unknown[]) => ({})),
  };
}

function makeSettings() {
  return {
    getStatus: vi.fn(async (..._a: unknown[]) => ({})),
    getSettings: vi.fn(async (..._a: unknown[]) => ({})),
    saveSettings: vi.fn(async (..._a: unknown[]) => ({})),
    testConnection: vi.fn(async (..._a: unknown[]) => ({})),
  };
}

describe('DomainsController — Metadaten', () => {
  it('haengt an modules/domains und traegt @UseModule(domains)', () => {
    expect(Reflect.getMetadata('path', DomainsController)).toBe('modules/domains');
    expect(Reflect.getMetadata(MODULE_SLUG_KEY, DomainsController)).toBe('domains');
  });

  it('Einstellungen, Verbindungstest, Kunden-/Kontakt-Schreibwege verlangen Verwalten, ohne Rollen-Decorator', () => {
    for (const name of MANAGE_HANDLERS) {
      expect(Reflect.getMetadata(MODULE_MANAGE_KEY, proto[name]), name).toBe(true);
      expect(Reflect.getMetadata(ROLES_KEY, proto[name]), name).toBeUndefined();
    }
  });

  it('Lesewege stehen auf Benutzen-Ebene', () => {
    for (const name of USE_HANDLERS) {
      expect(Reflect.getMetadata(MODULE_MANAGE_KEY, proto[name]), name).toBeUndefined();
      expect(Reflect.getMetadata(ROLES_KEY, proto[name]), name).toBeUndefined();
    }
  });

  it('Pfade und Methoden', () => {
    const route = (name: string) => [
      Reflect.getMetadata('method', proto[name]),
      Reflect.getMetadata('path', proto[name]),
    ];
    // RequestMethod: GET 0, POST 1, PUT 2, DELETE 3
    expect(route('getStatus')).toEqual([0, 'status']);
    expect(route('getSettings')).toEqual([0, 'settings']);
    expect(route('saveSettings')).toEqual([2, 'settings']);
    expect(route('testConnection')).toEqual([1, 'connection-test']);
    expect(route('listCustomers')).toEqual([0, 'customers']);
    expect(route('createCustomer')).toEqual([1, 'customers']);
    expect(route('listContacts')).toEqual([0, 'contacts']);
    expect(route('createContact')).toEqual([1, 'contacts']);
    expect(route('assignContacts')).toEqual([1, 'contacts/assign']);
    expect(route('listDomains')).toEqual([0, 'domains']);
    expect(route('updateCustomer')).toEqual([2, 'customers/:id']);
    expect(route('deleteCustomer')).toEqual([3, 'customers/:id']);
    expect(route('checkAvailability')).toEqual([1, 'availability']);
    expect(route('listOrders')).toEqual([0, 'orders']);
    expect(route('createOrder')).toEqual([1, 'orders']);
    expect(route('refreshOrders')).toEqual([1, 'orders/refresh']);
    expect(route('submitOrder')).toEqual([1, 'orders/:id/submit']);
    expect(route('cancelOrder')).toEqual([1, 'orders/:id/cancel']);
  });
});

describe('DomainsController — Routen-Reihenfolge (statisch vor :id)', () => {
  it('deklariert jeden Handler mit :id-Pfad nach allen statischen Handlern', () => {
    const names = Object.getOwnPropertyNames(DomainsController.prototype).filter(
      (n) => n !== 'constructor' && typeof proto[n] === 'function' && n !== 'requireTenantId',
    );
    const isIdRoute = (n: string) => String(Reflect.getMetadata('path', proto[n])).includes(':id');
    const firstId = names.findIndex(isIdRoute);
    expect(firstId, 'es gibt :id-Routen').toBeGreaterThan(-1);
    names.slice(firstId).forEach((n) => {
      expect(isIdRoute(n), `${n} steht nach einer :id-Route, ist aber statisch`).toBe(true);
    });
  });
});

describe('DomainsController — Auftraege: Reihenfolge', () => {
  it("'orders/refresh' steht vor jedem :id-Handler", () => {
    const names = Object.getOwnPropertyNames(DomainsController.prototype);
    const refresh = names.indexOf('refreshOrders');
    expect(refresh).toBeGreaterThan(-1);
    for (const n of ['updateCustomer', 'deleteCustomer', 'submitOrder', 'cancelOrder']) {
      expect(refresh, n).toBeLessThan(names.indexOf(n));
    }
  });
});

describe('DomainsController — Verhalten', () => {
  it('reicht req.tenantId weiter', async () => {
    const settings = makeSettings();
    const directory = makeDirectory();
    const c = new DomainsController(settings as any, directory as any, makeOrders() as any);
    await c.getStatus(req('t1'));
    await c.getSettings(req('t1'));
    await c.saveSettings(req('t1'), { demoUser: 'x' } as any);
    await c.testConnection(req('t1'), { environment: 'DEMO' });
    expect(settings.getStatus).toHaveBeenCalledWith('t1');
    expect(settings.getSettings).toHaveBeenCalledWith('t1');
    expect(settings.saveSettings).toHaveBeenCalledWith('t1', { demoUser: 'x' });
    expect(settings.testConnection).toHaveBeenCalledWith('t1', 'DEMO');
  });

  it('Kunden-, Kontakt- und Domainwege reichen req.tenantId weiter; refresh nur bei 1/true', async () => {
    const settings = makeSettings();
    const directory = makeDirectory();
    const c = new DomainsController(settings as any, directory as any, makeOrders() as any);
    const id = '11111111-1111-4111-8111-111111111111';
    await c.listCustomers(req('t1'));
    await c.createCustomer(req('t1'), { name: 'A' } as any);
    await c.updateCustomer(req('t1'), id, { name: 'B' } as any);
    await c.deleteCustomer(req('t1'), id);
    await c.listContacts(managerReq('t1'), '1');
    await c.listContacts(managerReq('t1'), 'true');
    await c.listContacts(managerReq('t1'), undefined);
    await c.listContacts(managerReq('t1'), '0');
    await c.createContact(req('t1'), { type: 'PERSON' } as any);
    await c.assignContacts(req('t1'), { contactIds: [1], customerId: null });
    await c.listDomains(managerReq('t1'), 'true');
    expect(directory.listCustomers).toHaveBeenCalledWith('t1');
    expect(directory.createCustomer).toHaveBeenCalledWith('t1', { name: 'A' });
    expect(directory.updateCustomer).toHaveBeenCalledWith('t1', id, { name: 'B' });
    expect(directory.deleteCustomer).toHaveBeenCalledWith('t1', id);
    expect(directory.listContacts.mock.calls.map((x) => x[1])).toEqual([
      { refresh: true },
      { refresh: true },
      { refresh: false },
      { refresh: false },
    ]);
    expect(directory.createContact).toHaveBeenCalledWith('t1', { type: 'PERSON' });
    expect(directory.assignContacts).toHaveBeenCalledWith('t1', {
      contactIds: [1],
      customerId: null,
    });
    expect(directory.listDomains).toHaveBeenCalledWith('t1', { refresh: true });
  });

  it('refresh=1 wird ohne Freigabestufe Verwalten ignoriert (kein Neuabruf bei AutoDNS)', async () => {
    const directory = makeDirectory();
    const c = new DomainsController(makeSettings() as any, directory as any, makeOrders() as any);
    await c.listContacts(userReq('t1'), '1');
    await c.listContacts(req('t1'), 'true');
    await c.listDomains(userReq('t1'), '1');
    await c.listDomains(req('t1'), 'true');
    expect(directory.listContacts.mock.calls.map((x) => x[1])).toEqual([
      { refresh: false },
      { refresh: false },
    ]);
    expect(directory.listDomains.mock.calls.map((x) => x[1])).toEqual([
      { refresh: false },
      { refresh: false },
    ]);
  });

  it('ohne Mandantenkontext 403', async () => {
    const c = new DomainsController(
      makeSettings() as any,
      makeDirectory() as any,
      makeOrders() as any,
    );
    await expect(c.getStatus(req(undefined))).rejects.toBeInstanceOf(ForbiddenException);
  });
});

describe('DomainsController — Auftraege: Verhalten', () => {
  const user = { id: 'u1', username: 'anna' } as any;
  const id = '22222222-2222-4222-8222-222222222222';

  it('reicht Organisation, Benutzer und Auftragsnummer weiter', async () => {
    const orders = makeOrders();
    const c = new DomainsController(makeSettings() as any, makeDirectory() as any, orders as any);
    await c.checkAvailability(req('t1'), { domain: 'beispiel.de' });
    await c.listOrders(req('t1'));
    await c.createOrder(req('t1'), user, { domain: 'beispiel.de' } as any);
    await c.refreshOrders(req('t1'));
    await c.submitOrder(req('t1'), user, id);
    await c.cancelOrder(req('t1'), id);
    expect(orders.checkAvailability).toHaveBeenCalledWith('t1', 'beispiel.de');
    expect(orders.listOrders).toHaveBeenCalledWith('t1');
    expect(orders.createOrder).toHaveBeenCalledWith('t1', 'u1', { domain: 'beispiel.de' });
    expect(orders.refreshOpenOrders).toHaveBeenCalledWith('t1');
    expect(orders.submitOrder).toHaveBeenCalledWith('t1', { id: 'u1', username: 'anna' }, id);
    expect(orders.cancelOrder).toHaveBeenCalledWith('t1', id);
  });

  it('ohne Mandantenkontext 403', async () => {
    const c = new DomainsController(
      makeSettings() as any,
      makeDirectory() as any,
      makeOrders() as any,
    );
    await expect(c.submitOrder(req(undefined), user, id)).rejects.toBeInstanceOf(ForbiddenException);
  });
});