// apps/viewer/e2e/helpers.ts —— Playwright 夹具：真实后端直种（决策见计划 Task 6
// Step 2：真实 API + compose 基础设施，fixture 走 Prisma/Storage 直种，镜像
// services/api/test/public.e2e-spec.ts 的种子形状）。公开端点匿名可达，无需登录态。
// Task 7 起补 seedPhoto：直种「已发布完成态」照片（photos + thumb/browse 变体行
// + MinIO 真实 JPEG 对象，行形状同 worker 发布事务落库形态）。
// P2 Task 6 起 viewer 读 ov 副本（VITE_API_BASE 直连 8081）——直种只落 cn 库，
// 故 seed* 后必须 flushSync(albumId)：经 cn bootstrap（当前态快照写回 outbox）
// + deliverPendingOnce（真实发送管线排空）把种子投影到 ov 副本，无旁路。
import { randomBytes } from 'node:crypto';
import { join } from 'node:path';
import { fileURLToPath } from 'node:url';
import { config } from 'dotenv';
import sharp from 'sharp';
import { PrismaClient } from '@photo/db-cn';
import { createStorageFromEnv, type MinioStorageAdapter } from '@photo/storage';
import {
  SYNC_SIGNATURE_HEADER,
  SYNC_TIMESTAMP_HEADER,
  signSyncBody,
} from '@photo/contracts';
import { deliverPendingOnce } from '../../../services/sync/src/sender';
import { seedAdmin } from '../../../services/api/src/scripts/seed-admin';

// 仓库根 .env 唯一来源（同 services/api test/load-env.ts 约定）。必须在
// PrismaClient / createStorageFromEnv 构造前执行——两者均在首次查询/调用时读 env。
const repoRoot = fileURLToPath(new URL('../../..', import.meta.url));
config({ path: join(repoRoot, '.env') });

const prisma = new PrismaClient();
const storage: MinioStorageAdapter = createStorageFromEnv();

const KEY_ROOT = 'photo-live/dev';

/** 契约 pattern ^[0-9a-z]{20,32}$：24 字符 [0-9a-z]（同 albums.service 生成式）。 */
export function makePublicToken(): string {
  const alphabet = '0123456789abcdefghijklmnopqrstuvwxyz';
  let token = '';
  const bytes = randomBytes(24);
  for (let i = 0; i < 24; i++) {
    token += alphabet[bytes[i] % alphabet.length];
  }
  return token;
}

export interface SeedAlbumOptions {
  alias: string;
  defaultLocale?: string;
  translations: Array<{
    locale: string;
    title: string;
    description?: string;
    venue?: string;
    address?: string;
  }>;
  status?: string;
  publicEnabled?: boolean;
  /** 下载两级开关（P4a Task 4）：缺省库默认 true/false（同 D06 工作默认）。 */
  downloadEnabled?: boolean;
  originalDownloadEnabled?: boolean;
  timezone?: string;
  startAt?: Date;
  endAt?: Date | null;
}

const seededAlbumIds: string[] = [];

/** 经 Prisma 直种相册 + 翻译（行形状同 api 公开 e2e fixture）。 */
export async function seedAlbum(options: SeedAlbumOptions): Promise<{ id: string; publicToken: string }> {
  const album = await prisma.albums.create({
    data: {
      publicToken: makePublicToken(),
      ownerId: `u-viewer-e2e-${options.alias}`,
      startAt: options.startAt ?? new Date('2026-10-01T02:00:00.000Z'),
      endAt: options.endAt === undefined ? new Date('2026-10-01T12:00:00.000Z') : options.endAt,
      timezone: options.timezone ?? 'Asia/Shanghai',
      status: options.status ?? 'active',
      defaultLocale: options.defaultLocale ?? 'zh-CN',
      publicEnabled: options.publicEnabled ?? true,
      downloadEnabled: options.downloadEnabled ?? true,
      originalDownloadEnabled: options.originalDownloadEnabled ?? false,
    },
    select: { id: true, publicToken: true },
  });
  seededAlbumIds.push(album.id);
  await prisma.album_translations.createMany({
    data: options.translations.map((t) => ({
      albumId: album.id,
      locale: t.locale,
      title: t.title,
      description: t.description ?? null,
      venue: t.venue ?? null,
      address: t.address ?? null,
    })),
  });
  return album;
}

/** 直种分类 + 翻译（名称按 locale 解析），返回 id。 */
export async function seedCategory(
  albumId: string,
  sortOrder: number,
  translations: Array<{ locale: string; name: string }>,
): Promise<string> {
  const category = await prisma.categories.create({
    data: { albumId, sortOrder },
    select: { id: true },
  });
  await prisma.category_translations.createMany({
    data: translations.map((t) => ({ categoryId: category.id, locale: t.locale, name: t.name })),
  });
  return category.id;
}

/** 640x200 纯色 JPEG（sharp 生成，仅作真实可取回对象——公开端点只做签名，不校验内容）。 */
export const BANNER_JPEG = Buffer.from(
  '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',
  'base64',
);

/** 直种 banner 资产行 + MinIO 真实对象（kind=banner, state=effective, locale 全局）。 */
export async function seedBannerAsset(albumId: string): Promise<void> {
  const objectKey = `${KEY_ROOT}/albums/${albumId}/assets/banner.jpg`;
  await storage.put(objectKey, BANNER_JPEG, 'image/jpeg');
  await prisma.album_assets.create({
    data: { albumId, kind: 'banner', locale: null, objectKey, state: 'effective' },
  });
}

/** 测试内生成真实 JPEG（sharp，同 services/api test 约定；尺寸小控制体积/耗时）。 */
async function makeJpeg(width: number, height: number): Promise<Buffer> {
  return sharp({
    create: { width, height, channels: 3, background: { r: 96, g: 130, b: 182 } },
  })
    .jpeg({ quality: 70 })
    .toBuffer();
}

/** cuid 形状 ID（对象键含 photoId，须先有 ID 再一次 insert 成形，同 api 约定）。 */
function cuidLike(alias: string): string {
  return `c${Date.now().toString(36)}${alias}${randomBytes(6).toString('hex')}`;
}

/** 与 worker publish.service variantsObjectKey 同布局的变体键。 */
function variantKey(albumId: string, photoId: string, variant: 'thumb' | 'browse'): string {
  return `${KEY_ROOT}/albums/${albumId}/variants/${photoId}/1/${variant}.jpg`;
}

export interface SeedPhotoOptions {
  categoryId?: string | null;
  /** browse 宽高（驱动列表占位与瀑布流比例；thumb 减半生成）。 */
  width?: number;
  height?: number;
  publishedAt: Date;
  /** UI-04：注入真实图片字节（如 e2e/fixtures 摄影样本）替代 sharp 色块；
   * thumb/browse 各自可选，缺省仍按尺寸生成。bytes 与宽高须与元数据一致。 */
  thumbBytes?: Buffer;
  browseBytes?: Buffer;
}

/** 直种已发布照片：photos 行（ready/published，entityVersion=2 对齐发布事务）+
 * thumb/browse 变体行 + MinIO 真实对象。publishedAt 必传（列表排序确定性）。 */
export async function seedPhoto(
  albumId: string,
  alias: string,
  options: SeedPhotoOptions,
): Promise<string> {
  const photoId = cuidLike(alias);
  const width = options.width ?? 480;
  const height = options.height ?? 300;
  const thumbWidth = Math.max(1, Math.round(width / 2));
  const thumbHeight = Math.max(1, Math.round(height / 2));
  const [thumb, browse] = await Promise.all([
    options.thumbBytes ?? makeJpeg(thumbWidth, thumbHeight),
    options.browseBytes ?? makeJpeg(width, height),
  ]);
  await storage.put(variantKey(albumId, photoId, 'thumb'), thumb, 'image/jpeg');
  await storage.put(variantKey(albumId, photoId, 'browse'), browse, 'image/jpeg');
  await prisma.photos.create({
    data: {
      id: photoId,
      albumId,
      uploaderId: `u-viewer-e2e-${alias}`,
      categoryId: options.categoryId ?? null,
      objectKey: `${KEY_ROOT}/albums/${albumId}/originals/${photoId}.jpg`,
      bytes: browse.length,
      width,
      height,
      uploadedAt: options.publishedAt,
      publishedAt: options.publishedAt,
      processingState: 'ready',
      visibility: 'published',
      entityVersion: 2,
    },
  });
  await prisma.photo_variants.createMany({
    data: [
      {
        photoId,
        variant: 'thumb',
        objectKey: variantKey(albumId, photoId, 'thumb'),
        bytes: thumb.length,
        version: 1,
        width: thumbWidth,
        height: thumbHeight,
      },
      {
        photoId,
        variant: 'browse',
        objectKey: variantKey(albumId, photoId, 'browse'),
        bytes: browse.length,
        version: 1,
        width,
        height,
      },
    ],
  });
  return photoId;
}

/** cn→ov 种子同步（P2 Task 6）：先打 cn bootstrap（当前态快照事件写回 outbox，
 * 优先级 normal），再 deliverPendingOnce 经真实发送管线（HMAC 签名
 * content-batches）排空至 ov 副本。幂等可重入：同版本新 eventId 在 ov 侧按
 * 当前态重断言应用；与常驻 dev:sync 发送器并发亦安全（eventId 幂等）。 */
export async function flushSync(albumId: string): Promise<void> {
  const internalKey = process.env.SYNC_INTERNAL_KEY ?? 'dev-sync-secret-change-me';
  const rawBody = JSON.stringify({ albumId });
  const timestamp = Math.floor(Date.now() / 1000).toString();
  const cnBase = (process.env.CN_API_URL ?? 'http://127.0.0.1:8080').replace(/\/+$/, '');
  const bootstrap = await fetch(`${cnBase}/v1/internal/sync/bootstrap`, {
    method: 'POST',
    headers: {
      'content-type': 'application/json',
      [SYNC_TIMESTAMP_HEADER]: timestamp,
      [SYNC_SIGNATURE_HEADER]: signSyncBody(internalKey, rawBody),
    },
    body: rawBody,
  });
  if (!bootstrap.ok) {
    throw new Error(
      `flushSync bootstrap 失败（${bootstrap.status}）：${(await bootstrap.text()).slice(0, 300)}`,
    );
  }
  await flushOutbox();
}

/** 仅排空 outbox（P4b Task 4 embed e2e）：slot.updated 事件不随相册 bootstrap
 * 走（bootstrap 清单恒不含 slot-state），展示位创建/绑定的同步须单独排空。 */
export async function flushOutbox(): Promise<void> {
  await deliverPendingOnce({
    prisma,
    ovApiUrl: process.env.OV_API_URL ?? 'http://127.0.0.1:8081',
    internalKey: process.env.SYNC_INTERNAL_KEY ?? 'dev-sync-secret-change-me',
  });
}

// ── P4b Task 4 展示位种子（经 cn admin API 真实路径，非直插行）──

const ADMIN_ACCOUNT = process.env.ADMIN_ACCOUNT ?? 'admin';
const ADMIN_PASSWORD = process.env.ADMIN_PASSWORD ?? 'admin-secret-change-me';

const seededSlotIds: string[] = [];
let adminTokenPromise: Promise<string> | null = null;

/** seeded admin 幂等 + 登录（journey.spec 同款；会话进程内复用）。 */
async function loginAdmin(): Promise<string> {
  if (adminTokenPromise === null) {
    adminTokenPromise = (async () => {
      await seedAdmin(prisma, ADMIN_ACCOUNT, ADMIN_PASSWORD);
      const res = await fetch(
        `${(process.env.CN_API_URL ?? 'http://127.0.0.1:8080').replace(/\/+$/, '')}/v1/auth/password`,
        {
          method: 'POST',
          headers: { 'content-type': 'application/json' },
          body: JSON.stringify({ account: ADMIN_ACCOUNT, password: ADMIN_PASSWORD }),
        },
      );
      if (!res.ok) {
        throw new Error(`embed seed 登录失败（${res.status}）`);
      }
      return ((await res.json()) as { sessionToken: string }).sessionToken;
    })();
  }
  return adminTokenPromise;
}

/** 经 cn admin API 创建展示位（未绑定态；settings 缺省），登记待清理。 */
export async function createEmbedSlot(name: string): Promise<{ id: string; token: string }> {
  const token = await loginAdmin();
  const res = await fetch(
    `${(process.env.CN_API_URL ?? 'http://127.0.0.1:8080').replace(/\/+$/, '')}/v1/admin/embed-slots`,
    {
      method: 'POST',
      headers: { 'content-type': 'application/json', authorization: `Bearer ${token}` },
      body: JSON.stringify({ name }),
    },
  );
  if (!res.ok) {
    throw new Error(`createEmbedSlot 失败（${res.status}）：${(await res.text()).slice(0, 300)}`);
  }
  const body = (await res.json()) as { id: string; publicToken: string };
  seededSlotIds.push(body.id);
  return { id: body.id, token: body.publicToken };
}

/** 经 cn admin API 更新展示位（绑定/换绑相册、启停、设置——body 直传契约形状）。 */
export async function updateEmbedSlot(id: string, body: Record<string, unknown>): Promise<void> {
  const token = await loginAdmin();
  const res = await fetch(
    `${(process.env.CN_API_URL ?? 'http://127.0.0.1:8080').replace(/\/+$/, '')}/v1/admin/embed-slots/${id}`,
    {
      method: 'PATCH',
      headers: { 'content-type': 'application/json', authorization: `Bearer ${token}` },
      body: JSON.stringify(body),
    },
  );
  if (!res.ok) {
    throw new Error(`updateEmbedSlot 失败（${res.status}）：${(await res.text()).slice(0, 300)}`);
  }
}

/** 模拟已分享深链的照片下线（Task 8 e2e）：软删（visibility=deleted +
 * entityVersion 自增）——硬删会让 cn 行缺席、bootstrap 快照无从发墓碑，ov 副本
 * 将永远留着旧发布行；软删 + flushSync 让 photo.deleted 事件走真实管线撤下。
 * 变体行/MinIO 对象保留（公开读只看 photos 行；行清理归 cleanupSeededAlbums）。 */
export async function deleteSeededPhoto(photoId: string): Promise<void> {
  await prisma.photos.update({
    where: { id: photoId },
    data: { visibility: 'deleted', entityVersion: { increment: 1 } },
  });
}

/** 清理本文件种下的相册域行（扁平字符串外键、无 DB 级联——按子表在前手工删；
 * category_translations 只挂 categoryId，先取分类 id 再删翻译；Task 7 起照片域
 * 同理：先按相册取照片 id 删变体行，再删 photos 主行）。
 * MinIO 对象不在此删：services/api e2e 的 reset 会整体清 `photo-live/dev` 前缀，
 * dev 桶内残余有界（同 api e2e 约定）。 */
export async function cleanupSeededAlbums(): Promise<void> {
  try {
    // 展示位种子（P4b）：绑定态 slot.updated 行随相册圈定（albumId 在种子相册集）
    // 已被下方 outbox 清理覆盖；未绑定创建行以 albumId='' 占位——仅清「未投递」
    // 残留（已投递行 inert；未投递残留会污染后续 deliverPendingOnce 排空判定）。
    if (seededSlotIds.length > 0) {
      await prisma.outbox_events.deleteMany({
        where: { type: 'slot.updated', albumId: '', deliveredAt: null },
      });
      await prisma.embed_slots.deleteMany({ where: { id: { in: seededSlotIds } } });
      seededSlotIds.length = 0;
    }
    if (seededAlbumIds.length > 0) {
      const photos = await prisma.photos.findMany({
        where: { albumId: { in: seededAlbumIds } },
        select: { id: true },
      });
      if (photos.length > 0) {
        await prisma.photo_variants.deleteMany({
          where: { photoId: { in: photos.map((p) => p.id) } },
        });
      }
      await prisma.photos.deleteMany({ where: { albumId: { in: seededAlbumIds } } });
      // flushSync 经 outbox 投递的快照事件行（已投递/未投递一并清——未投递
      // 残留会污染后续 deliverPendingOnce 的排空判定轮次）。
      await prisma.outbox_events.deleteMany({
        where: { albumId: { in: seededAlbumIds } },
      });
      const categories = await prisma.categories.findMany({
        where: { albumId: { in: seededAlbumIds } },
        select: { id: true },
      });
      const categoryIds = categories.map((c) => c.id);
      if (categoryIds.length > 0) {
        await prisma.category_translations.deleteMany({ where: { categoryId: { in: categoryIds } } });
      }
      await prisma.categories.deleteMany({ where: { albumId: { in: seededAlbumIds } } });
      await prisma.album_assets.deleteMany({ where: { albumId: { in: seededAlbumIds } } });
      await prisma.album_translations.deleteMany({ where: { albumId: { in: seededAlbumIds } } });
      await prisma.albums.deleteMany({ where: { id: { in: seededAlbumIds } } });
      seededAlbumIds.length = 0;
    }
  } finally {
    await prisma.$disconnect();
  }
}