import * as crypto from 'crypto';
import { CoolCommException } from '@cool-midway/core';
import {
  NfcBatchExportService,
  BATCH_EXPORT_MANIFEST_FILE,
  BATCH_EXPORT_QR_DIR,
  generateSecurityCode,
  validateBatchNo,
} from '../../../src/modules/nfc/service/batch-export';
import { AdminNfcDeviceController } from '../../../src/modules/nfc/controller/admin/device';

const AdmZip = require('adm-zip');

jest.setTimeout(20000);

describe('Point 16: 展会批量制卡二维码与离线数据包 Zip 导出', () => {
  let service: NfcBatchExportService;

  beforeEach(() => {
    service = new NfcBatchExportService();
  });

  describe('1. 参数校验与空数据保护', () => {
    it('当批次号为空或纯空格时，应抛出 CoolCommException 提示批次号不能为空', async () => {
      await expect(service.generateBatchPack('', [{ uid: '04:11:22:33', slug: 'test', cardTitle: '测试名片' }]))
        .rejects.toThrow(CoolCommException);
      await expect(service.generateBatchPack('   ', [{ uid: '04:11:22:33', slug: 'test', cardTitle: '测试名片' }]))
        .rejects.toThrow(CoolCommException);
    });

    it('当设备列表为空数组时，应抛出 CoolCommException 提示设备列表不能为空', async () => {
      await expect(service.generateBatchPack('BATCH-2026-01', []))
        .rejects.toThrow(CoolCommException);
    });

    it('当设备列表为 null 或 undefined 时，应抛出保护异常', async () => {
      await expect(service.generateBatchPack('BATCH-2026-01', null as unknown as []))
        .rejects.toThrow(CoolCommException);
      await expect(service.generateBatchPack('BATCH-2026-01', undefined as unknown as []))
        .rejects.toThrow(CoolCommException);
    });
  });

  describe('2. 批次号命名规范校验 (validateBatchNo)', () => {
    it('合法批次号应正常通过校验并返回规范化字符串', () => {
      expect(validateBatchNo('BATCH-2026-01')).toBe('BATCH-2026-01');
      expect(validateBatchNo('expo_shanghai_02')).toBe('expo_shanghai_02');
      expect(validateBatchNo('EXPO2026')).toBe('EXPO2026');
    });

    it('包含非法字符、空格或路径遍历字符时，应抛出 CoolCommException', () => {
      expect(() => validateBatchNo('../etc/passwd')).toThrow(CoolCommException);
      expect(() => validateBatchNo('BATCH 2026')).toThrow(CoolCommException);
      expect(() => validateBatchNo('BATCH/01')).toThrow(CoolCommException);
      expect(() => validateBatchNo('BATCH:01')).toThrow(CoolCommException);
      expect(() => validateBatchNo('BATCH*01?')).toThrow(CoolCommException);
    });
  });

  describe('3. 出厂防伪码规范 (generateSecurityCode)', () => {
    it('防伪码应为确定性、不可预测且长度规范的16位大写十六进制字符串', () => {
      const code1 = generateSecurityCode('BATCH-2026-01', '04:7A:B2:8F:1C:6D:80');
      const code2 = generateSecurityCode('BATCH-2026-01', '04:7A:B2:8F:1C:6D:80');
      const code3 = generateSecurityCode('BATCH-2026-01', '04:8B:C3:9A:2D:7E:91');

      expect(code1).toBe(code2);
      expect(code1).not.toBe(code3);
      expect(code1).toMatch(/^[A-F0-9]{16}$/);
    });
  });

  describe('4. ZIP 压缩包完整性验证与文件流解析', () => {
    const batchNo = 'EXPO-2026-GLOBAL';
    const mockDevices = [
      {
        uid: '04:7A:B2:8F:1C:6D:80',
        slug: 'alex-ceo',
        cardTitle: 'CEO Alex Zheng',
      },
      {
        uid: '04:8B:C3:9A:2D:7E:91',
        slug: 'https://card.omnicard.ai/sarah-cto',
        cardTitle: 'CTO Sarah Lin',
      },
    ];

    it('应成功生成包含高清二维码与清单 CSV 的合法 ZIP Buffer', async () => {
      const result = await service.generateBatchPack(batchNo, mockDevices);

      expect(result.totalCount).toBe(2);
      expect(Buffer.isBuffer(result.zipBuffer)).toBe(true);
      expect(result.zipBuffer.length).toBeGreaterThan(0);

      // 解压验证
      const zip = new AdmZip(result.zipBuffer);
      const entries = zip.getEntries();
      expect(entries.length).toBeGreaterThanOrEqual(3); // 至少 1 个 CSV 清单 + 2 个二维码图片

      // 4.1 校验 CSV 清单
      const csvEntry = entries.find(
        (e: { entryName: string }) =>
          e.entryName === BATCH_EXPORT_MANIFEST_FILE ||
          e.entryName === `${batchNo}.csv` ||
          e.entryName.endsWith('.csv')
      );
      expect(csvEntry).toBeDefined();

      const csvContent = zip.readAsText(csvEntry);
      expect(csvContent).toContain('UID');
      expect(csvContent).toContain('短链');
      expect(csvContent).toContain('微官网标题');
      expect(csvContent).toContain('出厂防伪码');

      // 校验每一行数据
      for (const dev of mockDevices) {
        expect(csvContent).toContain(dev.uid);
        expect(csvContent).toContain(dev.cardTitle);
        // 校验短链是否存在于 CSV 中
        if (dev.slug.startsWith('http')) {
          expect(csvContent).toContain(dev.slug);
        } else {
          expect(csvContent).toContain(dev.slug);
        }
      }

      // 4.2 校验高清二维码图片
      for (const dev of mockDevices) {
        const safeUid = dev.uid.replace(/[:\/\\*?"<>|]/g, '_');
        const qrEntry = entries.find(
          (e: { entryName: string; name: string }) =>
            e.name === `${safeUid}.png` ||
            e.entryName === `${BATCH_EXPORT_QR_DIR}/${safeUid}.png`
        );
        expect(qrEntry).toBeDefined();

        const qrBuffer: Buffer = zip.readFile(qrEntry);
        expect(Buffer.isBuffer(qrBuffer)).toBe(true);
        expect(qrBuffer.length).toBeGreaterThan(500);

        // 验证 PNG 签名魔法数字 (89 50 4E 47 0D 0A 1A 0A)
        const isPng =
          qrBuffer[0] === 0x89 &&
          qrBuffer[1] === 0x50 &&
          qrBuffer[2] === 0x4e &&
          qrBuffer[3] === 0x47 &&
          qrBuffer[4] === 0x0d &&
          qrBuffer[5] === 0x0a &&
          qrBuffer[6] === 0x1a &&
          qrBuffer[7] === 0x0a;
        expect(isPng).toBe(true);
      }
    });
  });

  describe('5. 控制器 /admin/nfc/device/batch-export-zip 接口扩展', () => {
    it('AdminNfcDeviceController 必须实现 batchExportZip 方法并支持流式导出', async () => {
      const controller = new AdminNfcDeviceController();
      expect(typeof (controller as any).batchExportZip).toBe('function');

      // 模拟 Midway 上下文
      const mockHeaders: Record<string, string> = {};
      let responseBody: unknown = null;

      const mockCtx = {
        set(key: string, value: string) {
          mockHeaders[key.toLowerCase()] = value;
        },
        set body(val: unknown) {
          responseBody = val;
        },
        get body() {
          return responseBody;
        },
      };

      (controller as any).ctx = mockCtx;
      (controller as any).nfcBatchExportService = service;

      await (controller as any).batchExportZip('BATCH-DEMO-01', [
        {
          uid: '04:AA:BB:CC:DD:EE:FF',
          slug: 'demo-card',
          cardTitle: '演示名片',
        },
      ]);

      expect(mockHeaders['content-type']).toBe('application/zip');
      expect(mockHeaders['content-disposition']).toContain('attachment');
      expect(mockHeaders['content-disposition']).toContain('BATCH-DEMO-01.zip');
      expect(Buffer.isBuffer(responseBody)).toBe(true);
    });
  });
});