const formatTime = date => {
  const year = date.getFullYear()
  const month = date.getMonth() + 1
  const day = date.getDate()
  const hour = date.getHours()
  const minute = date.getMinutes()
  const second = date.getSeconds()

  return `${[year, month, day].map(formatNumber).join('/')} ${[hour, minute, second].map(formatNumber).join(':')}`
}
const formatDate = date => {
  const year = date.getFullYear()
  const month = date.getMonth() + 1
  const day = date.getDate()
  return `${[year, month, day].map(formatNumber).join('-')} `
}

const formatNumber = n => {
  n = n.toString()
  return n[1] ? n : `0${n}`
}
const simleInfo = msg => {
  wx.showModal({
    title: '提示',
    content: msg,
    showCancel: false,
    success(res) {
    }
  })
}
const simleInfoWithBack = msg => {
  wx.showModal({
    title: '提示',
    content: msg,
    showCancel: false,
    success(res) {
      wx.navigateBack({})
    }
  })
}

function formatDateToYMD(dateString) {
  if (!dateString) return '';
  
  try {
    const date = new Date(dateString);
    const year = date.getFullYear();
    const month = String(date.getMonth() + 1).padStart(2, '0');
    const day = String(date.getDate()).padStart(2, '0');
    return `${year}年${month}月${day}日`;
  } catch (e) {
    console.error('日期格式化错误:', e);
    return dateString; // 返回原字符串或自定义错误提示
  }
}
function floatAdd(a, b) {
  var c, d, e;
  if(undefined==a||null==a||""==a||isNaN(a)){a=0;}
  if(undefined==b||null==b||""==b||isNaN(b)){b=0;}
  try {
      c = a.toString().split(".")[1].length;
  } catch (f) {
      c = 0;
  }
  try {
      d = b.toString().split(".")[1].length;
  } catch (f) {
      d = 0;
  }
  e = Math.pow(10, Math.max(c, d));
  return  (floatMul(a, e) + floatMul(b, e)) / e;
}
function floatSub(a, b) {
  var c, d, e;
  if(undefined==a||null==a||""==a||isNaN(a)){a=0;}
  if(undefined==b||null==b||""==b||isNaN(b)){b=0;}
  try {
      c = a.toString().split(".")[1].length;
  } catch (f) {
      c = 0;
  }
  try {
      d = b.toString().split(".")[1].length;
  } catch (f) {
      d = 0;
  }
  e = Math.pow(10, Math.max(c, d));
  return (floatMul(a, e) - floatMul(b, e)) / e;
}
function floatMul(a, b) {
  var c = 0,
      d = a.toString(),
      e = b.toString();
  try {
      c += d.split(".")[1].length;
  } catch (f) {}
  try {
      c += e.split(".")[1].length;
  } catch (f) {}
  return Number(d.replace(".", "")) * Number(e.replace(".", "")) / Math.pow(10, c);
}
module.exports = {
  simleInfo: simleInfo,
  simleInfoWithBack: simleInfoWithBack,
  formatNumber: formatNumber,
  formatTime: formatTime,
  formatDate: formatDate,
  floatMul:floatMul,
  floatAdd:floatAdd,
  floatSub:floatSub
}