// packages/storage/test/minio.adapter.spec.ts —— MinIO 真实集成测试（依赖
// docker compose 的 photo-live-minio-1 与仓库根 .env 的 S3_* 配置）。
// 每次运行使用唯一前缀 test/<ts>-<uuid>/，避免历史残留对象干扰断言。
import { randomBytes, randomUUID } from 'node:crypto';
import { ErrorCodes } from '@photo/contracts';
import { StorageError, createStorageFromEnv, type MinioStorageAdapter } from '../src/index';

const PREFIX = `test/${Date.now()}-${randomUUID()}`;

describe('MinioStorageAdapter（真实 MinIO 集成）', () => {
  let storage: MinioStorageAdapter;

  beforeAll(() => {
    storage = createStorageFromEnv();
  });

  it('presignPut: 客户端按凭证直接 PUT 后，head 返回精确字节数与 etag', async () => {
    const key = `${PREFIX}/presign-put.bin`;
    const body = randomBytes(2048);
    const credential = await storage.presignPut(key, body.length, 'application/octet-stream', 300);

    expect(credential.mode).toBe('presigned');
    expect(credential.method).toBe('PUT');
    expect(credential.headers['Content-Type']).toBe('application/octet-stream');
    expect(new Date(credential.expiresAt).getTime()).toBeGreaterThan(Date.now());

    const res = await fetch(credential.url, { method: credential.method, headers: credential.headers, body });
    expect(res.ok).toBe(true);

    const head = await storage.head(key);
    expect(head).not.toBeNull();
    expect(head?.bytes).toBe(body.length);
    expect(head?.etag).toBeTruthy();
    expect(head?.contentType).toBe('application/octet-stream');
  });

  it('put + getStream: 写入后流式读回的字节与写入一致', async () => {
    const key = `${PREFIX}/put-get.bin`;
    const body = randomBytes(4096);
    const { etag } = await storage.put(key, body, 'application/octet-stream');
    expect(etag).toBeTruthy();

    const stream = await storage.getStream(key);
    const chunks: Buffer[] = [];
    for await (const chunk of stream) {
      chunks.push(Buffer.from(chunk as Uint8Array));
    }
    expect(Buffer.concat(chunks).equals(body)).toBe(true);
  });

  it('copyIfAbsent: 首次 created:true；同参数重复调用幂等 created:false 且 etag 不变', async () => {
    const srcKey = `${PREFIX}/copy-src.bin`;
    const destKey = `${PREFIX}/copy-dest.bin`;
    const body = randomBytes(512);
    await storage.put(srcKey, body, 'application/octet-stream');

    const first = await storage.copyIfAbsent(srcKey, destKey, body.length);
    expect(first.created).toBe(true);
    expect(first.etag).toBeTruthy();

    const second = await storage.copyIfAbsent(srcKey, destKey, body.length);
    expect(second.created).toBe(false);
    expect(second.etag).toBe(first.etag);
  });

  it('copyIfAbsent: dest 已存在但字节数不符 → StorageError(UPLOAD_VERIFY_FAILED)', async () => {
    const srcKey = `${PREFIX}/mismatch-src.bin`;
    const destKey = `${PREFIX}/mismatch-dest.bin`;
    const srcBody = randomBytes(64);
    await storage.put(srcKey, srcBody, 'application/octet-stream');
    // 预置一个不同大小的 dest 对象，制造核验失败
    await storage.put(destKey, randomBytes(128), 'application/octet-stream');

    const promise = storage.copyIfAbsent(srcKey, destKey, srcBody.length);
    await expect(promise).rejects.toBeInstanceOf(StorageError);
    await expect(promise).rejects.toMatchObject({ code: ErrorCodes.UPLOAD_VERIFY_FAILED });
  });

  it('head: 缺失键返回 null（不抛错）', async () => {
    const head = await storage.head(`${PREFIX}/missing.bin`);
    expect(head).toBeNull();
  });

  it('presignGet: 预签名 URL 取回的字节与对象一致', async () => {
    const key = `${PREFIX}/presign-get.bin`;
    const body = randomBytes(1024);
    await storage.put(key, body, 'application/octet-stream');

    const url = await storage.presignGet(key, 300);
    const res = await fetch(url);
    expect(res.ok).toBe(true);
    expect(Buffer.from(await res.arrayBuffer()).equals(body)).toBe(true);
  });
});