heygo/tests/api.promotions.test.ts

import { describe, expect, it } from 'vitest';
import worker from '../worker/index';
import { AUTH_SESSION_COOKIE_NAME, hashSessionToken } from '../worker/auth';

type LinkScope = 'public' | 'private';
type LinkStatus = 'active' | 'archived' | 'deleted';
type LinkType = 'redirect' | 'custom';
type SubmissionStatus = 'pending' | 'approved' | 'rejected' | 'needs_changes';

type LinkRow = {
  id: string;
  scope: LinkScope;
  owner_user_id: string | null;
  alias: string;
  link_type: LinkType;
  target_url: string | null;
  content_markdown: string | null;
  description: string | null;
  status: LinkStatus;
  click_count: number;
  created_at: string;
  updated_at: string;
};

type SubmissionRow = {
  id: string;
  private_link_id: string;
  submitted_by_user_id: string;
  proposed_alias: string;
  note: string | null;
  status: SubmissionStatus;
  reviewed_by_user_id: string | null;
  rejection_reason: string | null;
  public_link_id: string | null;
  created_at: string;
  reviewed_at: string | null;
};

type SessionRow = {
  id: string;
  email: string | null;
  name: string | null;
  image_url: string | null;
  role: 'user' | 'admin';
  expires_at: string;
  session_token_hash: string;
};

type SubmissionJoined = SubmissionRow & {
  private_link_alias: string | null;
  private_link_target_url: string | null;
  link_type: LinkType | null;
  content_markdown: string | null;
  description: string | null;
};

type AllResult<T> = {
  results: T[];
  success: true;
  meta: Record<string, never>;
};

type FakeD1Options = {
  throwOnInsert?: Error;
};

type NotificationRow = {
  id: string;
  user_id: string;
  title: string;
  body: string | null;
  kind: string;
  related_submission_id: string | null;
};

class FakeD1Database {
  readonly preparedSql: string[] = [];
  readonly runCalls: { sql: string; params: unknown[] }[] = [];
  readonly notifications: NotificationRow[] = [];

  constructor(
    readonly links: LinkRow[] = [],
    readonly submissions: SubmissionRow[] = [],
    private readonly sessions: SessionRow[] = [],
    private readonly options: FakeD1Options = {},
  ) {}

  prepare(sql: string): FakeD1PreparedStatement {
    this.preparedSql.push(sql);
    return new FakeD1PreparedStatement(this, sql);
  }

  findSession(hash: string): SessionRow | null {
    return this.sessions.find((s) => s.session_token_hash === hash) ?? null;
  }

  findPrivateLink(id: string, ownerUserId: string): LinkRow | null {
    return (
      this.links.find(
        (l) =>
          l.id === id &&
          l.scope === 'private' &&
          l.owner_user_id === ownerUserId &&
          l.status === 'active',
      ) ?? null
    );
  }

  findPublicAliasConflict(alias: string): LinkRow | null {
    return (
      this.links.find(
        (l) => l.scope === 'public' && l.status !== 'deleted' && l.alias === alias,
      ) ?? null
    );
  }

  findPendingDuplicate(
    privateLinkId: string,
    submittedByUserId: string,
    proposedAlias: string,
  ): SubmissionRow | null {
    return (
      this.submissions.find(
        (s) =>
          s.private_link_id === privateLinkId &&
          s.submitted_by_user_id === submittedByUserId &&
          s.proposed_alias === proposedAlias &&
          s.status === 'pending',
      ) ?? null
    );
  }

  findSubmission(id: string): SubmissionRow | null {
    return this.submissions.find((s) => s.id === id) ?? null;
  }

  listMine(userId: string): SubmissionJoined[] {
    return this.submissions
      .filter((s) => s.submitted_by_user_id === userId)
      .sort((a, b) => b.created_at.localeCompare(a.created_at))
      .map((s) => this.joinLink(s));
  }

  listByStatus(status: SubmissionStatus): SubmissionJoined[] {
    return this.submissions
      .filter((s) => s.status === status)
      .sort((a, b) => b.created_at.localeCompare(a.created_at))
      .map((s) => this.joinLink(s));
  }

  joinLink(s: SubmissionRow): SubmissionJoined {
    const link = this.links.find((l) => l.id === s.private_link_id) ?? null;
    return {
      ...s,
      private_link_alias: link?.alias ?? null,
      private_link_target_url: link?.target_url ?? null,
      link_type: link?.link_type ?? null,
      content_markdown: link?.content_markdown ?? null,
      description: link?.description ?? null,
    };
  }

  insertSubmission(params: unknown[]): SubmissionRow {
    const [id, privateLinkId, submittedByUserId, proposedAlias, note] = params;
    const row: SubmissionRow = {
      id: String(id),
      private_link_id: String(privateLinkId),
      submitted_by_user_id: String(submittedByUserId),
      proposed_alias: String(proposedAlias),
      note: note == null ? null : String(note),
      status: 'pending',
      reviewed_by_user_id: null,
      rejection_reason: null,
      public_link_id: null,
      created_at: '2026-06-20T00:00:00.000Z',
      reviewed_at: null,
    };
    this.submissions.push(row);
    return row;
  }

  insertPublicLink(params: unknown[]): LinkRow {
    const [id, alias, linkType, targetUrl, contentMarkdown, description] = params;
    const row: LinkRow = {
      id: String(id),
      scope: 'public',
      owner_user_id: null,
      alias: String(alias),
      link_type: linkType as LinkType,
      target_url: targetUrl == null ? null : String(targetUrl),
      content_markdown: contentMarkdown == null ? null : String(contentMarkdown),
      description: description == null ? null : String(description),
      status: 'active',
      click_count: 0,
      created_at: '2026-06-20T00:00:00.000Z',
      updated_at: '2026-06-20T00:00:00.000Z',
    };
    this.links.push(row);
    return row;
  }

  maybeThrowOnInsert(): void {
    if (this.options.throwOnInsert) {
      throw this.options.throwOnInsert;
    }
  }
}

class FakeD1PreparedStatement {
  constructor(
    private readonly db: FakeD1Database,
    private readonly sql: string,
    private readonly params: unknown[] = [],
  ) {}

  bind(...params: unknown[]): FakeD1PreparedStatement {
    return new FakeD1PreparedStatement(this.db, this.sql, params);
  }

  async first<T>(): Promise<T | null> {
    if (this.sql.includes('session_token_hash')) {
      const row = this.db.findSession(String(this.params[0]));
      if (!row) return null;
      return {
        id: row.id,
        email: row.email,
        name: row.name,
        image_url: row.image_url,
        role: row.role,
        expires_at: row.expires_at,
      } as T;
    }

    if (this.sql.includes('promotion_submissions') && this.sql.includes('s.id=?')) {
      const row = this.db.findSubmission(String(this.params[0]));
      if (!row) return null;
      return this.db.joinLink(row) as unknown as T;
    }

    if (this.sql.includes('promotion_submissions') && this.sql.includes("status='pending'")) {
      const row = this.db.findPendingDuplicate(
        String(this.params[0]),
        String(this.params[1]),
        String(this.params[2]),
      );
      return (row ? { id: row.id } : null) as T | null;
    }

    if (
      this.sql.includes('FROM links') &&
      this.sql.includes("scope='public'") &&
      this.sql.includes("status!='deleted'") &&
      this.sql.includes('alias=?')
    ) {
      const row = this.db.findPublicAliasConflict(String(this.params[0]));
      return (row ? { id: row.id } : null) as T | null;
    }

    if (
      this.sql.includes('FROM links') &&
      this.sql.includes("scope='private'") &&
      this.sql.includes('owner_user_id=?') &&
      this.sql.includes('id=?')
    ) {
      const row = this.db.findPrivateLink(String(this.params[0]), String(this.params[1]));
      if (!row) return null;
      return {
        id: row.id,
        alias: row.alias,
        scope: row.scope,
        link_type: row.link_type,
        target_url: row.target_url,
        content_markdown: row.content_markdown,
        description: row.description,
        owner_user_id: row.owner_user_id,
        status: row.status,
      } as T;
    }

    return null;
  }

  async all<T>(): Promise<AllResult<T>> {
    if (this.sql.includes('promotion_submissions') && this.sql.includes('s.submitted_by_user_id=?')) {
      return { results: this.db.listMine(String(this.params[0])) as unknown as T[], success: true, meta: {} };
    }

    if (this.sql.includes('promotion_submissions') && this.sql.includes('s.status=?')) {
      return { results: this.db.listByStatus(String(this.params[0]) as SubmissionStatus) as unknown as T[], success: true, meta: {} };
    }

    return { results: [], success: true, meta: {} };
  }

  async run(): Promise<D1Result> {
    this.db.runCalls.push({ sql: this.sql, params: this.params });

    if (this.sql.startsWith('INSERT INTO promotion_submissions')) {
      this.db.insertSubmission(this.params);
    }

    if (this.sql.startsWith('INSERT INTO links')) {
      this.db.maybeThrowOnInsert();
      this.db.insertPublicLink(this.params);
    }

    if (this.sql.startsWith('INSERT INTO notifications')) {
      const [id, userId, title, body, kind, relatedSubmissionId] = this.params;
      this.db.notifications.push({
        id: String(id),
        user_id: String(userId),
        title: String(title),
        body: body == null ? null : String(body),
        kind: String(kind),
        related_submission_id: relatedSubmissionId == null ? null : String(relatedSubmissionId),
      });
    }

    if (this.sql.startsWith('UPDATE promotion_submissions')) {
      const submission = this.db.findSubmission(String(this.params[this.params.length - 1]));
      if (submission && submission.status === 'pending') {
        if (this.sql.includes("status='approved'")) {
          submission.status = 'approved';
          submission.reviewed_by_user_id = String(this.params[0]);
          submission.reviewed_at = String(this.params[1]);
          submission.public_link_id = String(this.params[2]);
        } else if (this.sql.includes("status='rejected'")) {
          submission.status = 'rejected';
          submission.reviewed_by_user_id = String(this.params[0]);
          submission.reviewed_at = String(this.params[1]);
          submission.rejection_reason = this.params[2] == null ? null : String(this.params[2]);
        } else if (this.sql.includes("status='needs_changes'")) {
          submission.status = 'needs_changes';
          submission.reviewed_by_user_id = String(this.params[0]);
          submission.reviewed_at = String(this.params[1]);
          submission.rejection_reason = this.params[2] == null ? null : String(this.params[2]);
        }
      }
    }

    return { success: true, meta: { changes: 1 } } as unknown as D1Result;
  }
}

class FakeExecutionContext {
  waitUntil(): void {}
  passThroughOnException(): void {}
}

function link(overrides: Partial<LinkRow> = {}): LinkRow {
  return {
    id: 'link_1',
    scope: 'private',
    owner_user_id: 'user_1',
    alias: 'docs',
    link_type: 'redirect',
    target_url: 'https://example.com/docs',
    content_markdown: null,
    description: null,
    status: 'active',
    click_count: 0,
    created_at: '2026-06-20T00:00:00.000Z',
    updated_at: '2026-06-20T00:00:00.000Z',
    ...overrides,
  };
}

function submission(overrides: Partial<SubmissionRow> = {}): SubmissionRow {
  return {
    id: 'sub_1',
    private_link_id: 'link_1',
    submitted_by_user_id: 'user_1',
    proposed_alias: 'docs',
    note: null,
    status: 'pending',
    reviewed_by_user_id: null,
    rejection_reason: null,
    public_link_id: null,
    created_at: '2026-06-20T00:00:00.000Z',
    reviewed_at: null,
    ...overrides,
  };
}

function futureIso(): string {
  return new Date(Date.now() + 60 * 60 * 1000).toISOString();
}

async function userSession(
  token: string,
  userId: string,
  role: 'user' | 'admin' = 'user',
): Promise<SessionRow> {
  return {
    id: userId,
    email: `${userId}@heygo.cc`,
    name: userId,
    image_url: null,
    role,
    expires_at: futureIso(),
    session_token_hash: await hashSessionToken(token),
  };
}

function cookie(token: string): string {
  return `${AUTH_SESSION_COOKIE_NAME}=${token}`;
}

function makeEnv(
  links: LinkRow[] = [],
  submissions: SubmissionRow[] = [],
  sessions: SessionRow[] = [],
  dbOptions: FakeD1Options = {},
) {
  const db = new FakeD1Database(links, submissions, sessions, dbOptions);
  return {
    env: {
      DB: db as unknown as D1Database,
      PUBLIC_HOST: 'heygo.cc',
      PRIVATE_HOST: 'my.heygo.cc',
      APP_BASE_URL: 'https://heygo.cc',
      COOKIE_DOMAIN: '.heygo.cc',
    },
    db,
    ctx: new FakeExecutionContext(),
  };
}

async function fetchWorker(
  path: string,
  opts: {
    method?: string;
    body?: unknown;
    links?: LinkRow[];
    submissions?: SubmissionRow[];
    sessions?: SessionRow[];
    cookie?: string;
    dbOptions?: FakeD1Options;
  } = {},
) {
  const { env, db, ctx } = makeEnv(
    opts.links ?? [],
    opts.submissions ?? [],
    opts.sessions ?? [],
    opts.dbOptions ?? {},
  );
  const headers = new Headers();
  if (opts.cookie) {
    headers.set('cookie', opts.cookie);
  }
  if (opts.body !== undefined) {
    headers.set('content-type', 'application/json');
  }

  const response = await worker.fetch(
    new Request(`https://heygo.cc${path}`, {
      method: opts.method ?? 'GET',
      headers,
      body: opts.body === undefined ? undefined : JSON.stringify(opts.body),
    }) as unknown as Parameters<typeof worker.fetch>[0],
    env as unknown as Parameters<typeof worker.fetch>[1],
    ctx as unknown as Parameters<typeof worker.fetch>[2],
  );

  return { response, db };
}

async function expectJson<T = any>(response: Response): Promise<T> {
  expect(response.headers.get('content-type')).toContain('application/json');
  return response.json() as Promise<T>;
}

function uniqueConstraintError(): Error {
  return new Error('D1_ERROR: UNIQUE constraint failed: links.alias');
}

describe('promotion submission API', () => {
  it('lets a user submit their own private link for promotion', async () => {
    const session = await userSession('token-a', 'user_1');
    const links = [link({ id: 'priv_1', owner_user_id: 'user_1', alias: 'mylink' })];
    const { response } = await fetchWorker('/api/promotions', {
      method: 'POST',
      cookie: cookie('token-a'),
      sessions: [session],
      links,
      body: { privateLinkId: 'priv_1', proposedAlias: 'public-docs', note: 'please review' },
    });

    expect(response.status).toBe(201);
    const body = await expectJson(response);
    expect(body.submission).toMatchObject({
      privateLinkId: 'priv_1',
      submittedByUserId: 'user_1',
      proposedAlias: 'public-docs',
      status: 'pending',
      note: 'please review',
    });
  });

  it('rejects submitting another user private link with 404', async () => {
    const session = await userSession('token-a', 'user_1');
    const links = [link({ id: 'priv_other', owner_user_id: 'user_2', alias: 'secret' })];
    const { response } = await fetchWorker('/api/promotions', {
      method: 'POST',
      cookie: cookie('token-a'),
      sessions: [session],
      links,
      body: { privateLinkId: 'priv_other', proposedAlias: 'leaked' },
    });

    expect(response.status).toBe(404);
    await expect(expectJson(response)).resolves.toHaveProperty('error');
  });

  it('rejects a duplicate pending submission with 409', async () => {
    const session = await userSession('token-a', 'user_1');
    const links = [link({ id: 'priv_1', owner_user_id: 'user_1', alias: 'mylink' })];
    const submissions = [
      submission({
        id: 'sub_existing',
        private_link_id: 'priv_1',
        submitted_by_user_id: 'user_1',
        proposed_alias: 'public-docs',
      }),
    ];
    const { response } = await fetchWorker('/api/promotions', {
      method: 'POST',
      cookie: cookie('token-a'),
      sessions: [session],
      links,
      submissions,
      body: { privateLinkId: 'priv_1', proposedAlias: 'public-docs' },
    });

    expect(response.status).toBe(409);
    await expect(expectJson(response)).resolves.toHaveProperty('error');
  });

  it('lets an admin list pending submissions', async () => {
    const admin = await userSession('admin-token', 'admin_1', 'admin');
    const links = [link({ id: 'priv_1', owner_user_id: 'user_1', alias: 'mylink' })];
    const submissions = [
      submission({ id: 'sub_pending', private_link_id: 'priv_1', proposed_alias: 'docs' }),
      submission({
        id: 'sub_approved',
        private_link_id: 'priv_1',
        proposed_alias: 'done',
        status: 'approved',
      }),
    ];
    const { response } = await fetchWorker('/api/admin/promotions?status=pending', {
      cookie: cookie('admin-token'),
      sessions: [admin],
      links,
      submissions,
    });

    expect(response.status).toBe(200);
    const body = await expectJson(response);
    expect(body.submissions.map((s: { id: string }) => s.id)).toEqual(['sub_pending']);
  });

  it('rejects non-admin access to admin promotions list with 403', async () => {
    const session = await userSession('token-a', 'user_1', 'user');
    const { response } = await fetchWorker('/api/admin/promotions', {
      cookie: cookie('token-a'),
      sessions: [session],
    });

    expect(response.status).toBe(403);
    await expect(expectJson(response)).resolves.toEqual({ error: 'Admin access required' });
  });

  it('creates a public link and marks submission approved on admin approval', async () => {
    const admin = await userSession('admin-token', 'admin_1', 'admin');
    const links = [
      link({
        id: 'priv_1',
        owner_user_id: 'user_1',
        alias: 'mylink',
        link_type: 'redirect',
        target_url: 'https://example.com/docs',
      }),
    ];
    const submissions = [
      submission({
        id: 'sub_1',
        private_link_id: 'priv_1',
        submitted_by_user_id: 'user_1',
        proposed_alias: 'public-docs',
      }),
    ];
    const { response, db } = await fetchWorker('/api/admin/promotions/sub_1/approve', {
      method: 'POST',
      cookie: cookie('admin-token'),
      sessions: [admin],
      links,
      submissions,
    });

    expect(response.status).toBe(200);
    const body = await expectJson(response);
    expect(body.submission).toMatchObject({ id: 'sub_1', status: 'approved' });
    expect(body.publicLink).toMatchObject({
      alias: 'public-docs',
      scope: 'public',
      ownerUserId: null,
      linkType: 'redirect',
      targetUrl: 'https://example.com/docs',
      status: 'active',
    });
    expect(db.submissions[0].status).toBe('approved');
    expect(db.submissions[0].reviewed_by_user_id).toBe('admin_1');
    expect(db.submissions[0].public_link_id).toBe(body.publicLink.id);
    expect(db.links.some((l) => l.id === body.publicLink.id && l.scope === 'public')).toBe(true);
  });

  it('returns 409 on approval alias conflict and does not approve', async () => {
    const admin = await userSession('admin-token', 'admin_1', 'admin');
    const links = [
      link({ id: 'priv_1', owner_user_id: 'user_1', alias: 'mylink' }),
      link({
        id: 'pub_existing',
        scope: 'public',
        owner_user_id: null,
        alias: 'public-docs',
      }),
    ];
    const submissions = [
      submission({ id: 'sub_1', private_link_id: 'priv_1', proposed_alias: 'public-docs' }),
    ];
    const { response, db } = await fetchWorker('/api/admin/promotions/sub_1/approve', {
      method: 'POST',
      cookie: cookie('admin-token'),
      sessions: [admin],
      links,
      submissions,
    });

    expect(response.status).toBe(409);
    await expect(expectJson(response)).resolves.toHaveProperty('error');
    expect(db.submissions[0].status).toBe('pending');
    expect(db.submissions[0].public_link_id).toBeNull();
  });

  it('stores a reason and marks submission rejected', async () => {
    const admin = await userSession('admin-token', 'admin_1', 'admin');
    const links = [link({ id: 'priv_1', owner_user_id: 'user_1', alias: 'mylink' })];
    const submissions = [
      submission({ id: 'sub_1', private_link_id: 'priv_1', proposed_alias: 'docs' }),
    ];
    const { response, db } = await fetchWorker('/api/admin/promotions/sub_1/reject', {
      method: 'POST',
      cookie: cookie('admin-token'),
      sessions: [admin],
      links,
      submissions,
      body: { reason: 'alias too generic' },
    });

    expect(response.status).toBe(200);
    const body = await expectJson(response);
    expect(body.submission).toMatchObject({ id: 'sub_1', status: 'rejected' });
    expect(body.submission.rejectionReason).toBe('alias too generic');
    expect(db.submissions[0].status).toBe('rejected');
    expect(db.submissions[0].rejection_reason).toBe('alias too generic');
  });

  it('stores a reason and marks submission needs_changes', async () => {
    const admin = await userSession('admin-token', 'admin_1', 'admin');
    const links = [link({ id: 'priv_1', owner_user_id: 'user_1', alias: 'mylink' })];
    const submissions = [
      submission({ id: 'sub_1', private_link_id: 'priv_1', proposed_alias: 'docs' }),
    ];
    const { response, db } = await fetchWorker('/api/admin/promotions/sub_1/needs-changes', {
      method: 'POST',
      cookie: cookie('admin-token'),
      sessions: [admin],
      links,
      submissions,
      body: { reason: 'add a better description' },
    });

    expect(response.status).toBe(200);
    const body = await expectJson(response);
    expect(body.submission).toMatchObject({ id: 'sub_1', status: 'needs_changes' });
    expect(body.submission.rejectionReason).toBe('add a better description');
    expect(db.submissions[0].status).toBe('needs_changes');
  });

  it('returns 400 for invalid alias and invalid bodies', async () => {
    const session = await userSession('token-a', 'user_1');
    const links = [link({ id: 'priv_1', owner_user_id: 'user_1', alias: 'mylink' })];

    const badAlias = await fetchWorker('/api/promotions', {
      method: 'POST',
      cookie: cookie('token-a'),
      sessions: [session],
      links,
      body: { privateLinkId: 'priv_1', proposedAlias: '../bad' },
    });
    expect(badAlias.response.status).toBe(400);
    await expect(expectJson(badAlias.response)).resolves.toHaveProperty('error');

    const missingField = await fetchWorker('/api/promotions', {
      method: 'POST',
      cookie: cookie('token-a'),
      sessions: [session],
      links,
      body: { proposedAlias: 'ok' },
    });
    expect(missingField.response.status).toBe(400);
    await expect(expectJson(missingField.response)).resolves.toHaveProperty('error');
  });

  it('returns 401 for unauthenticated promotion submission', async () => {
    const { response } = await fetchWorker('/api/promotions', {
      method: 'POST',
      body: { privateLinkId: 'priv_1', proposedAlias: 'docs' },
    });
    expect(response.status).toBe(401);
    await expect(expectJson(response)).resolves.toEqual({ error: 'Authentication required' });
  });

  it('lets a user list their own submissions', async () => {
    const session = await userSession('token-a', 'user_1');
    const links = [link({ id: 'priv_1', owner_user_id: 'user_1', alias: 'mylink' })];
    const submissions = [
      submission({ id: 'sub_1', private_link_id: 'priv_1', submitted_by_user_id: 'user_1' }),
      submission({ id: 'sub_2', private_link_id: 'priv_1', submitted_by_user_id: 'user_2' }),
    ];
    const { response } = await fetchWorker('/api/promotions/mine', {
      cookie: cookie('token-a'),
      sessions: [session],
      links,
      submissions,
    });

    expect(response.status).toBe(200);
    const body = await expectJson(response);
    expect(body.submissions.map((s: { id: string }) => s.id)).toEqual(['sub_1']);
  });

  it('returns 409 when approve insert hits a unique constraint race', async () => {
    const admin = await userSession('admin-token', 'admin_1', 'admin');
    const links = [link({ id: 'priv_1', owner_user_id: 'user_1', alias: 'mylink' })];
    const submissions = [
      submission({ id: 'sub_1', private_link_id: 'priv_1', proposed_alias: 'docs' }),
    ];
    const { response, db } = await fetchWorker('/api/admin/promotions/sub_1/approve', {
      method: 'POST',
      cookie: cookie('admin-token'),
      sessions: [admin],
      links,
      submissions,
      dbOptions: { throwOnInsert: uniqueConstraintError() },
    });

    expect(response.status).toBe(409);
    expect(db.submissions[0].status).toBe('pending');
  });

  it('creates an unread notification for the submitter on approval', async () => {
    const admin = await userSession('admin-token', 'admin_1', 'admin');
    const links = [
      link({ id: 'priv_1', owner_user_id: 'user_1', alias: 'mylink', target_url: 'https://example.com' }),
    ];
    const submissions = [
      submission({ id: 'sub_1', private_link_id: 'priv_1', submitted_by_user_id: 'user_1', proposed_alias: 'docs' }),
    ];
    const { db } = await fetchWorker('/api/admin/promotions/sub_1/approve', {
      method: 'POST',
      cookie: cookie('admin-token'),
      sessions: [admin],
      links,
      submissions,
    });

    expect(db.notifications).toHaveLength(1);
    expect(db.notifications[0]).toMatchObject({
      user_id: 'user_1',
      kind: 'promotion_approved',
      title: 'Promotion approved',
      related_submission_id: 'sub_1',
    });
    expect(db.notifications[0].body).toContain('mylink');
    expect(db.notifications[0].body).toContain('docs');
  });

  it('creates a notification with the reason on rejection', async () => {
    const admin = await userSession('admin-token', 'admin_1', 'admin');
    const links = [link({ id: 'priv_1', owner_user_id: 'user_1', alias: 'mylink' })];
    const submissions = [
      submission({ id: 'sub_1', private_link_id: 'priv_1', submitted_by_user_id: 'user_1', proposed_alias: 'docs' }),
    ];
    const { db } = await fetchWorker('/api/admin/promotions/sub_1/reject', {
      method: 'POST',
      cookie: cookie('admin-token'),
      sessions: [admin],
      links,
      submissions,
      body: { reason: 'too generic' },
    });

    expect(db.notifications).toHaveLength(1);
    expect(db.notifications[0]).toMatchObject({
      user_id: 'user_1',
      kind: 'promotion_rejected',
      title: 'Promotion rejected',
    });
    expect(db.notifications[0].body).toContain('too generic');
  });

  it('creates a notification on needs-changes', async () => {
    const admin = await userSession('admin-token', 'admin_1', 'admin');
    const links = [link({ id: 'priv_1', owner_user_id: 'user_1', alias: 'mylink' })];
    const submissions = [
      submission({ id: 'sub_1', private_link_id: 'priv_1', submitted_by_user_id: 'user_1', proposed_alias: 'docs' }),
    ];
    const { db } = await fetchWorker('/api/admin/promotions/sub_1/needs-changes', {
      method: 'POST',
      cookie: cookie('admin-token'),
      sessions: [admin],
      links,
      submissions,
      body: { reason: 'add a description' },
    });

    expect(db.notifications).toHaveLength(1);
    expect(db.notifications[0]).toMatchObject({
      user_id: 'user_1',
      kind: 'promotion_needs_changes',
    });
    expect(db.notifications[0].body).toContain('add a description');
  });
});