wxmp-salarycalculators_g/constant/calculate.js

// const low = [
//   [380.34, 105],
//   [199.3, 110],
//   [379.33, 120.4],
//   [449.3, 115]
// ]

// const position = [
//   [18213, 22275, 24654],
//   [22440, 25044],
//   [21258, 25401],
//   [21396]
// ]

// const value = [
//   [ (m, p) => { return [m * 0.102, m * p] }, 
//     (m, p) => { return [1457 + m * 0.022, m * p] },
//     (m, p) => { return [1947.05, m * p] },
//     (m, p) => { return [1947.05, 24654 * p] } ],

//   [ (m, p) => { return [m * 0.08, m * p] }, 
//     (m, p) => { return [1822.9, m * p] },
//     (m, p) => { return [1822.9, 25044 * p] }],

//   [ (m, p) => { return [m * 0.102, m * p] },
//     (m, p) => { return [m * 0.102, 21258 * p] },
//     (m, p) => { return [2590.9, 21258 * p] } ],

//   [ (m, p) => { return [m * 0.105, m * p] },
//     (m, p) => { return [2246.58, 21396 * p] } ]
// ]

function calculate(m, s, a, p, d, md) {
  // var A = 0
  // var B = 0

  // if (s < 2 || a < 2) {
  //   var l = low[c]//最低标准
  //   var v = value[c]

  //   var po = []//工资标准
  //   var P = position[c]
  //   for (var i = 0; i < P.length; i++) {
  //     if (m <= P[i]) {
  //       po = v[i](m, 0.05 + p * 0.01)
  //       break
  //     }
  //   }
  //   if (po.length == 0) {
  //     po = v[P.length](m, 0.05 + p * 0.01)
  //   }
    
  //   if (s < 2) {
  //     var A = s == 0 ? l[0] : po[0]//社保缴纳
  //   }
  //   if (a < 2) {
  //     var B = a == 0 ? l[1] : po[1]//公积金缴纳
  //   }
  // }

  var A = Number(s).toFixed(2)
  var B = Number(a).toFixed(2)
  
  
  

  // var A = 0
  // var B = 0
  console.log(d)
  var salary = m - A - B//每月应纳税工资
  var taxesS = m - A - B - d//每月实际纳税工资
  var ex = 5000//每个月免税额度
  var lastC = 0//累计个税
  var lastT = 0//累计税后工资
  var result = []
  var income = []
  for (var i = 1; i < 13; i ++) {
    var allE = ex * i
    var allT = taxesS * i - allE//需交税部分工资
    // console.log(allT)
    var C = calculateTax(allT)
    // console.log(C)
    result.push((C - lastC).toFixed(2))
    income.push((salary - C + lastC).toFixed(2))
    lastT = lastT + salary - C + lastC
    lastC = C
    
  }
  
  result.push(lastC.toFixed(2))
  income.push(lastT.toFixed(2))

  // console.log(result)
  // console.log(lastC)

  
  

  // C = C.toFixed(1)

  // var income = (taxesS - C).toFixed(2)//税后收入
  // console.log(taxesS)
  // console.log(B)
  // console.log(C)
  // console.log(income)
  //算大病医疗退税
  var allT = (taxesS - ex) * 12 - md//年度需交税部分工资
  var rebate = calculateTax(allT)
  
  rebate = result[12] - rebate
  if (rebate < 0) {
    rebate = 0
  }

  return [A, B, result, income, rebate]
}

function calculateTax(s) {
  var C = 0//个税
  if (s > 960000) {
    C = s * 0.45 - 181920
  } else if (s > 660000) {
    C = s * 0.35 - 85920
  } else if (s > 420000) {
    C = s * 0.3 - 52920
  } else if (s > 300000) {
    C = s * 0.25 - 31920
  } else if (s > 144000) {
    C = s * 0.2 - 16920
  } else if (s > 36000) {
    C = s * 0.1 - 2520
  } else if (s > 0) {
    C = s * 0.03
  }
  return C
}

module.exports = {
  calculate: calculate
}