import { strict as assert } from 'node:assert';
import { test } from 'node:test';
import { EMPTY_DELIVERY, EMPTY_STORE, type OnboardingState } from './onboardingState';
import { shouldOfferSetup } from './shouldOfferSetup';

const FRESH: OnboardingState = {
  step: 'welcome',
  completed: [],
  skipped: [],
  finished: false,
  started: false,
  store: EMPTY_STORE,
  delivery: EMPTY_DELIVERY,
};

const at = (over: Partial<Parameters<typeof shouldOfferSetup>[0]> = {}) =>
  shouldOfferSetup({
    pathname: '/admin/console',
    isReady: true,
    productCount: 0,
    state: FRESH,
    ...over,
  });

test('a brand-new store admin is sent to setup on first login', () => {
  // The reported bug, and it survived a day of testing because the old rule
  // asked whether the shop had a name, address and phone — which
  // `createtenantuser` fills in at creation, so it was true of every new
  // tenant and the redirect never fired once.
  assert.equal(at(), true);
});

test('a shop whose profile Nearle Admin already filled in is STILL offered setup', () => {
  // Tenants 1150, 1148 and 1146 were all newly created and all carried a name,
  // an address and a phone number. A complete profile is evidence about who
  // created the tenant, not about whether the merchant has been onboarded.
  assert.equal(at({ productCount: 0 }), true);
});

test('a trading shop is never interrupted', () => {
  // R mart, 24 products. Stock on the shelf means somebody is working.
  assert.equal(at({ productCount: 24 }), false);
});

test('the offer is made once, so declining it is possible', () => {
  // Without this the merchant is trapped: the welcome screen offers no way out,
  // so clicking Console to leave lands on `/admin/console` and bounces back.
  assert.equal(at({ state: { ...FRESH, started: true } }), false);
});

test('somebody who finished setup is not sent through it again', () => {
  assert.equal(at({ state: { ...FRESH, finished: true } }), false);
});

test('nobody is hauled away from the page they opened', () => {
  for (const pathname of ['/admin/sales', '/admin/inventory', '/admin/reports']) {
    assert.equal(at({ pathname }), false, pathname);
  }
});

test('no decision is taken while the shop and its products are still loading', () => {
  // An empty product list mid-flight looks exactly like a shop with no stock,
  // which would redirect every established merchant on their first paint.
  assert.equal(at({ isReady: false }), false);
});