import assert from 'node:assert/strict';
import test from 'node:test';
import sharp from 'sharp';
import { buildApp } from '../../src/app/build-app.js';
import { createInventoryImageService } from '../../src/modules/inventory/services/inventory-image-service.js';
import { createSharpImageInspector } from '../../src/infrastructure/images/sharp-image-inspector.js';

test('multipart uploads derive dimensions and reject malformed bytes before writes', async (context) => {
  const saved = [];
  let stored = 0;
  let jobs = 0;
  const app = buildApp({
    authenticateAdmin: async () => ({ sellerId: 'seller-1' }),
    inventoryImageService: createInventoryImageService({
      imageInspector: createSharpImageInspector(),
      imageStorage: { async put() { stored += 1; }, async delete() {} },
      inventoryImageRepository: { async createForSeller(input, sellerId) { assert.equal(sellerId, 'seller-1'); saved.push(input); return { id: 'image-1', ...input }; } },
      imageDerivativeJobRepository: { async create() { jobs += 1; } },
    }),
  });
  context.after(() => app.close());
  const data = await sharp({ create: { width: 7, height: 5, channels: 3, background: 'white' } }).png().toBuffer();
  const send = (bytes, fields = '') => app.inject({
    method: 'POST', url: '/api/v1/admin/inventory/item-1/images',
    headers: { 'content-type': 'multipart/form-data; boundary=image-test' },
    payload: Buffer.concat([Buffer.from(`${fields}--image-test\r\nContent-Disposition: form-data; name="file"; filename="image.png"\r\nContent-Type: image/png\r\n\r\n`), bytes, Buffer.from('\r\n--image-test--\r\n')]),
  });
  for (const fields of ['', '--image-test\r\nContent-Disposition: form-data; name="width"\r\n\r\n1\r\n--image-test\r\nContent-Disposition: form-data; name="height"\r\n\r\n1\r\n']) {
    const response = await send(data, fields);
    assert.equal(response.statusCode, 201);
    assert.equal(response.json().data.width, 7);
    assert.equal(response.json().data.height, 5);
    assert.equal(response.json().data.fileSize, data.length);
  }
  const response = await send(data.subarray(0, 40));
  assert.equal(response.statusCode, 400);
  assert.equal(response.json().error.code, 'IMAGE_DECODE_INVALID');
  assert.equal(saved.length, 2);
  assert.equal(stored, 2);
  assert.equal(jobs, 2);
});