function isEmpty(val) {
  return typeof val === 'undefined' || val === '' || val === null
}

function orderStatus(status) {
  if (status == 2) {
    return '待确认'
  } else if (status == 3 || status == 30) {
    return '待审核'
  } else if (status == 23 || status == 31) {
    return '待审核'
  } else if (status == 4) {
    return '已完成'
  } else if (status == 5) {
    return '已取消'
  } else if (status == 6) {
    return '不通过'
  }
  return ''
}


function numberFormat(value, fix) {
  if (value) {
    return value.toFixed(fix)
  }
  return ''
}

function orderOperated(status) {
  return status in [2, 3, 4]
}

function settleOrder(orderInfo, type) {
  if (type == 1) {
    if (parseFloat(orderInfo.settleWeight) > 0) {
      return numberFormat(orderInfo.settleWeight, 3)
    }
    if (parseFloat(orderInfo.allSettleWeight) > 0) {
      return numberFormat(orderInfo.allSettleWeight, 3)
    }
  } else if (type == 2) {
    if (parseFloat(orderInfo.settlePrice) > 0) {
      return numberFormat(orderInfo.settlePrice, 2)
    }
    if (!isEmpty(orderInfo.allTotalPrice) && parseFloat(orderInfo.allTotalPrice) > 0) {
      return numberFormat(orderInfo.allTotalPrice, 2)
    }
  }
  return ''
}

function formatePrice(price) {
  return Number(parseFloat(price) / 100).toFixed(2)
}

function formateWeight(weight, kg) {
  if (weight || weight == 0) {
    if (kg) {
      return (parseFloat(weight)).toFixed(1)
    } else {
      return (parseFloat(weight) / 1000).toFixed(3)
    }
  }
  return ''
}

function formateAmount(price) {
  return Number(parseFloat(price)).toFixed(2)
}

function formateDate(datetime) {
  if (isEmpty(datetime)) {
    return ''
  }
  var date = getDate(datetime.trim())
  var today = getDate()
  var dayCode = 24 * 60 * 60 * 1000
  var week = ''
  if (date.getTime() === today.getTime()) {
    week = '(今天)'
  } else if (date.getTime() === today.getTime() + dayCode) {
    week = '(明天)'
  } else if (date.getTime() === today.getTime() - dayCode) {
    week = '(昨天)'
  } else if (date.getTime() === today.getTime() + dayCode * 2) {
    week = '(后天)'
  } else {
    week = ['(周日)', '(周一)', '(周二)', '(周三)', '(周四)', '(周五)', '(周六)'][date.getDay()]
  }
  if (isEmpty(week)) {
    week = ''
  }
  return datetime + week
}

function formateText(text, length) {
  if (!text) {
    return ''
  }
  if (text.length <= length) {
    return text
  }
  return text.substring(0, length) + '...'
}

function isVideoUrl(url) {
  if (url && url.indexOf('.mp4') >= 0) {
    return true
  }
  return false
}

function minNumber(order, num) {
  if (order && parseInt(order.minBuyNum) > 0) {
    return Number(order.minBuyNum)
  }
  return num
}

module.exports = {
  orderStatus: orderStatus,
  numberFormat: numberFormat,
  orderOperated: orderOperated,
  settleOrder: settleOrder,
  formatePrice: formatePrice,
  formateWeight: formateWeight,
  formateDate: formateDate,
  formateText: formateText,
  isVideoUrl: isVideoUrl,
  minNumber: minNumber,
  formateAmount: formateAmount
}