import { toTencentSymbol, parseTencentQuote, fetchPricesFromTencent } from '../src/lib/tencent-quote'

describe('腾讯行情接口符号转换', () => {
  describe('toTencentSymbol', () => {
    it('CN A股 - 上海以6开头', () => {
      expect(toTencentSymbol('600000', 'CN')).toBe('sh600000')
    })

    it('CN A股 - 深圳以0/3开头', () => {
      expect(toTencentSymbol('000001', 'CN')).toBe('sz000001')
    })

    it('CN A股 - 已带前缀', () => {
      expect(toTencentSymbol('sh600000', 'CN')).toBe('sh600000')
    })

    it('HK 港股 - 纯数字', () => {
      expect(toTencentSymbol('09868', 'HK')).toBe('r_hk09868')
    })

    it('HK 港股 - 已带hk前缀', () => {
      expect(toTencentSymbol('hk09868', 'HK')).toBe('r_hk09868')
    })

    it('US 美股', () => {
      expect(toTencentSymbol('AAPL', 'US')).toBe('s_usAAPL')
    })

    it('US 美股 - 已带前缀', () => {
      expect(toTencentSymbol('s_usAAPL', 'US')).toBe('s_usaapl')
    })

    it('CRYPTO 加密货币', () => {
      expect(toTencentSymbol('btc', 'CRYPTO')).toBe('usdtbtc')
    })
  })

  describe('parseTencentQuote', () => {
    it('正常解析腾讯行情数据', () => {
      const data = 'v_xxx="100~Apple Inc~AAPL~185.50~183.20~1000000~..."'
      const result = parseTencentQuote(data)
      expect(result?.price).toBe(185.5)
      expect(result?.change).toBeCloseTo(2.3, 10)
      expect(result?.changePercent).toBeCloseTo(1.2554, 3)
    })

    it('格式错误返回null', () => {
      expect(parseTencentQuote('invalid')).toBeNull()
    })

    it('字段不足返回null', () => {
      expect(parseTencentQuote('v_xxx="100~Name~"')).toBeNull()
    })

    it('除以零防护 - 昨收价为0', () => {
      const data = 'v_xxx="100~Name~AAPL~185.50~0~..."'
      expect(parseTencentQuote(data)).toBeNull()
    })

    it('价格非数字返回null', () => {
      const data = 'v_xxx="100~Name~AAPL~invalid~183.20~..."'
      expect(parseTencentQuote(data)).toBeNull()
    })
  })
})

describe('fetchPricesFromTencent 批量获取', () => {
  beforeEach(() => {
    jest.clearAllMocks()
  })

  it('空数组返回空对象', async () => {
    const result = await fetchPricesFromTencent([])
    expect(result).toEqual({})
  })

  it('网络错误返回空对象', async () => {
    global.fetch = jest.fn().mockRejectedValue(new Error('Network error'))
    const result = await fetchPricesFromTencent([{ symbol: 'AAPL', marketType: 'US' }])
    expect(result).toEqual({})
  })

  it('HTTP错误返回空对象', async () => {
    global.fetch = jest.fn().mockResolvedValue({ ok: false, status: 500 })
    const result = await fetchPricesFromTencent([{ symbol: 'AAPL', marketType: 'US' }])
    expect(result).toEqual({})
  })
})