import { createHmac } from 'node:crypto';
import { describe, expect, test } from 'vitest';

import { verifyBoxTerminalToken } from '../../src/terminal-token';

const mintBox = (username: string, expiresAt: number, secret: string) => {
  const payload = `${expiresAt}.box.${username}`;
  const sig = createHmac('sha256', secret).update(payload).digest('hex');
  return `${payload}.${sig}`;
};

describe('verifyBoxTerminalToken', () => {
  const secret = 'test-secret';

  test('accepts a valid, unexpired, username-matched token', () => {
    const token = mintBox('alice', Date.now() + 60_000, secret);
    expect(verifyBoxTerminalToken(token, 'alice', secret)).toBe(true);
  });

  test('rejects an expired token', () => {
    const token = mintBox('alice', Date.now() - 1, secret);
    expect(verifyBoxTerminalToken(token, 'alice', secret)).toBe(false);
  });

  test('rejects a token minted for another username', () => {
    const token = mintBox('alice', Date.now() + 60_000, secret);
    expect(verifyBoxTerminalToken(token, 'bob', secret)).toBe(false);
  });

  test('rejects a token signed with a different secret', () => {
    const token = mintBox('alice', Date.now() + 60_000, 'other-secret');
    expect(verifyBoxTerminalToken(token, 'alice', secret)).toBe(false);
  });

  test('rejects malformed input and an empty secret', () => {
    expect(verifyBoxTerminalToken('garbage', 'alice', secret)).toBe(false);
    expect(verifyBoxTerminalToken('', 'alice', secret)).toBe(false);
    expect(
      verifyBoxTerminalToken(mintBox('alice', Date.now() + 1000, ''), 'alice', ''),
    ).toBe(false);
  });

  test('rejects a 3-part job token (cross-scheme confusion guard)', () => {
    const payload = `${Date.now() + 60_000}.alice`;
    const sig = createHmac('sha256', secret).update(payload).digest('hex');
    const jobToken = `${payload}.${sig}`;
    expect(verifyBoxTerminalToken(jobToken, 'alice', secret)).toBe(false);
  });
});
