import * as fs from 'fs';
import * as path from 'path';
import { CONTROLLER_KEY, getClassMetadata } from '@midwayjs/core';
import { BaseController, CoolCommException, CurdOption } from '@cool-midway/core';
import { NfcDeviceEntity } from '../../../src/modules/nfc/entity/device';
import { NfcBindService } from '../../../src/modules/nfc/service/bind';
import {
  AdminNfcBindController,
  adminNfcBindCurdOption,
} from '../../../src/modules/nfc/controller/admin/bind';

/**
 * CoolController 元数据（脚本路径解析为异步）
 */
interface CoolControllerMeta {
  prefix?: string;
  curdOption?: CurdOption;
}

/**
 * 等待 CoolController 将 CRUD 配置写入类元数据
 */
async function waitCoolMeta(
  target: new (...args: never[]) => unknown
): Promise<CoolControllerMeta> {
  const started = Date.now();
  while (Date.now() - started < 2000) {
    const meta = getClassMetadata(CONTROLLER_KEY, target) as
      | CoolControllerMeta
      | undefined;
    if (meta?.curdOption) {
      return meta;
    }
    await new Promise<void>(resolve => setImmediate(resolve));
  }
  throw new Error(`${target.name} 的 CoolController 元数据未就绪`);
}

function serviceApiMethods(apis: CurdOption['serviceApis'] = []): string[] {
  return apis.map(api => (typeof api === 'string' ? api : api.method));
}

/**
 * 内存 Repository，覆盖 findOneBy / save
 */
class MemoryNfcDeviceRepo {
  private data: NfcDeviceEntity[] = [];
  private currentId = 1;

  constructor(initialData: Array<Partial<NfcDeviceEntity>> = []) {
    this.data = initialData.map(item => this.createEntity(item));
    if (this.data.length > 0) {
      this.currentId = Math.max(...this.data.map(d => Number(d.id) || 0)) + 1;
    }
  }

  private createEntity(item: Partial<NfcDeviceEntity>): NfcDeviceEntity {
    const entity = new NfcDeviceEntity();
    Object.assign(entity, {
      id: item.id || this.currentId++,
      createTime: item.createTime || new Date(),
      updateTime: new Date(),
      ...item,
    });
    return entity;
  }

  async findOneBy(
    where: Partial<Pick<NfcDeviceEntity, 'id' | 'uid' | 'status'>>
  ): Promise<NfcDeviceEntity | null> {
    const found = this.data.find(item => {
      const keys = Object.keys(where) as Array<keyof typeof where>;
      return keys.every(key => {
        const expected = where[key];
        return expected === undefined || item[key] === expected;
      });
    });
    return found ? ({ ...found } as NfcDeviceEntity) : null;
  }

  async save(
    entityOrEntities:
      | Partial<NfcDeviceEntity>
      | Array<Partial<NfcDeviceEntity>>
  ): Promise<NfcDeviceEntity | NfcDeviceEntity[]> {
    if (Array.isArray(entityOrEntities)) {
      const savedList: NfcDeviceEntity[] = [];
      for (const item of entityOrEntities) {
        savedList.push((await this.save(item)) as NfcDeviceEntity);
      }
      return savedList;
    }

    const item = entityOrEntities;
    if (item.id) {
      const index = this.data.findIndex(d => d.id === item.id);
      if (index !== -1) {
        this.data[index] = {
          ...this.data[index],
          ...item,
          updateTime: new Date(),
        } as NfcDeviceEntity;
        return { ...this.data[index] } as NfcDeviceEntity;
      }
    }

    const newEntity = this.createEntity(item);
    this.data.push(newEntity);
    return { ...newEntity } as NfcDeviceEntity;
  }
}

function createService(
  seed: Array<Partial<NfcDeviceEntity>> = []
): NfcBindService {
  const service = new NfcBindService();
  service.nfcDeviceEntity = new MemoryNfcDeviceRepo(
    seed
  ) as unknown as NfcBindService['nfcDeviceEntity'];
  return service;
}

function seedDevices(): Array<Partial<NfcDeviceEntity>> {
  return [
    {
      id: 1,
      uid: '04:7A:B2:8F:1C:6D:80',
      cardId: null,
      batchNo: 'B2026-001',
      material: 'pvc',
      status: 'unbound',
      sceneMode: 'business',
    },
    {
      id: 2,
      uid: '04:AA:BB:CC:DD:EE:01',
      cardId: 100,
      batchNo: 'B2026-001',
      material: 'metal',
      status: 'suspended',
      sceneMode: 'business',
    },
    {
      id: 3,
      uid: '04:11:22:33:44:55:66',
      cardId: 200,
      batchNo: 'B2026-002',
      material: 'wood',
      status: 'active',
      sceneMode: 'business',
    },
    {
      id: 4,
      uid: '04:UN:BD:CD:EF:01:02',
      cardId: 300,
      batchNo: 'B2026-003',
      material: 'pvc',
      status: 'unbound',
      sceneMode: 'social',
    },
  ];
}

describe('T22 NFC 绑定激活 (动态云端短链)', () => {
  describe('1. Service bind / activate / switchCard / unbind', () => {
    it('未挂失设备可 bind 成 active', async () => {
      const service = createService(seedDevices());
      const bound = await service.bind({
        uid: '04:7A:B2:8F:1C:6D:80',
        cardId: 88,
      });

      expect(bound.uid).toBe('04:7A:B2:8F:1C:6D:80');
      expect(bound.cardId).toBe(88);
      expect(bound.status).toBe('active');
    });

    it('suspended 设备不能 bind', async () => {
      const service = createService(seedDevices());
      await expect(
        service.bind({
          uid: '04:AA:BB:CC:DD:EE:01',
          cardId: 88,
        })
      ).rejects.toThrow(CoolCommException);
    });

    it('已有 cardId 的 unbound 设备可 activate 成 active', async () => {
      const service = createService(seedDevices());
      const activated = await service.activate({
        uid: '04:UN:BD:CD:EF:01:02',
      });

      expect(activated.cardId).toBe(300);
      expect(activated.status).toBe('active');
      expect(activated.uid).toBe('04:UN:BD:CD:EF:01:02');
    });

    it('无 cardId 或已挂失时不能 activate', async () => {
      const service = createService(seedDevices());
      await expect(
        service.activate({ uid: '04:7A:B2:8F:1C:6D:80' })
      ).rejects.toThrow(CoolCommException);
      await expect(
        service.activate({ uid: '04:AA:BB:CC:DD:EE:01' })
      ).rejects.toThrow(CoolCommException);
    });

    it('switchCard 只改 cardId，不改 uid', async () => {
      const service = createService(seedDevices());
      const switched = await service.switchCard({
        uid: '04:11:22:33:44:55:66',
        cardId: 501,
      });

      expect(switched.uid).toBe('04:11:22:33:44:55:66');
      expect(switched.cardId).toBe(501);
      expect(switched.status).toBe('active');
      expect(switched.batchNo).toBe('B2026-002');
    });

    it('unbind 后 status 为 unbound 且 cardId 为空', async () => {
      const service = createService(seedDevices());
      const unbound = await service.unbind({
        uid: '04:11:22:33:44:55:66',
      });

      expect(unbound.status).toBe('unbound');
      expect(unbound.cardId == null).toBe(true);
      expect(unbound.uid).toBe('04:11:22:33:44:55:66');
    });

    it('uid 缺失或设备未入台账时应拒绝', async () => {
      const service = createService(seedDevices());
      await expect(service.bind({ uid: '', cardId: 1 })).rejects.toThrow(
        CoolCommException
      );
      await expect(
        service.bind({ uid: '04:NOT:IN:LEDGER', cardId: 1 })
      ).rejects.toThrow(CoolCommException);
    });
  });

  describe('2. 后台控制器 /admin/nfc/bind', () => {
    const controllerFile = path.join(
      __dirname,
      '../../../src/modules/nfc/controller/admin/bind.ts'
    );

    let meta: CoolControllerMeta;
    let option: CurdOption;

    beforeAll(async () => {
      meta = await waitCoolMeta(AdminNfcBindController);
      option = meta.curdOption as CurdOption;
    });

    it('文件路径应符合 /admin/nfc/bind 自动路由约定', () => {
      expect(fs.existsSync(controllerFile)).toBe(true);
      expect(controllerFile.replace(/\\/g, '/')).toMatch(
        /modules\/nfc\/controller\/admin\/bind\.ts$/
      );
    });

    it('路由前缀应为 /admin/nfc/bind', () => {
      expect(meta.prefix).toBe('/admin/nfc/bind');
    });

    it('控制器应继承 BaseController 并绑定 NfcBindService，不开 CRUD', () => {
      expect(AdminNfcBindController.prototype).toBeInstanceOf(BaseController);
      expect(option.service).toBe(NfcBindService);
      expect(adminNfcBindCurdOption.service).toBe(NfcBindService);
      expect(option.api || []).toEqual([]);
    });

    it('serviceApis 应包含 bind / activate / switchCard / unbind', () => {
      const methods = serviceApiMethods(option.serviceApis);
      expect(methods).toEqual(['bind', 'activate', 'switchCard', 'unbind']);
    });
  });
});