import assert from 'node:assert/strict';
import test from 'node:test';

import { createSellerSettingsService } from '../../src/modules/settings/services/seller-settings-service.js';

test('merges validated seller settings without replacing other categories', async () => {
  let stored = null;
  const service = createSellerSettingsService({
    sellerSettingsRepository: {
      async findBySellerId() { return stored; },
      async upsert(sellerId, settings) {
        stored = { sellerId, settings };
        return stored;
      },
    },
  });

  await service.update({
    sellerId: 'seller-1',
    settings: { pricing: { defaultStrategy: 'median' }, general: { publicContactEmail: 'owner@example.test' } },
  });
  const result = await service.update({
    sellerId: 'seller-1',
    settings: { inventory: { maxImagesPerItem: 12 } },
  });

  assert.deepEqual(result, {
    pricing: { defaultStrategy: 'median' },
    general: { publicContactEmail: 'owner@example.test' },
    inventory: { maxImagesPerItem: 12 },
  });
});

test('rejects unknown or invalid settings', async () => {
  const service = createSellerSettingsService({
    sellerSettingsRepository: { async findBySellerId() { return null; } },
  });

  await assert.rejects(
    () => service.update({ sellerId: 'seller-1', settings: { secrets: { token: 'nope' } } }),
  );
});


test('seller descriptions are trimmed, bounded, preserved on partial updates and clearable', async () => {
  let stored;
  const service = createSellerSettingsService({ sellerSettingsRepository: {
    async findBySellerId() { return stored; },
    async upsert(sellerId, settings) { stored = { sellerId, settings }; return stored; },
  } });
  const update = (general) => service.update({ sellerId: 'seller-1', settings: { general } });
  assert.equal((await update({ publicDescription: '  Collector.  ' })).general.publicDescription, 'Collector.');
  assert.equal((await update({ publicContactPhone: '555-0100' })).general.publicDescription, 'Collector.');
  await assert.rejects(() => update({ publicDescription: 'x'.repeat(2001) }));
  await assert.rejects(() => update({ publicDescription: 123 }));
  assert.equal((await update({ publicDescription: 'x'.repeat(2000) })).general.publicDescription.length, 2000);
  assert.equal((await update({ publicDescription: '   ' })).general.publicDescription, '');
});