cie-calculator-flap/lib/strategies/alg11.js

Easily generate CIE References

'use strict';

var CIEStrategy = require('./cie_strategy.js').CIEStrategy;
var CIEUtils = require('./cie_utils.js').CIEUtils;
var cieUtils = new CIEUtils();

var Alg11 = function() {};

Alg11.prototype = new CIEStrategy();
Alg11.prototype = {
  execute: function(input) {

    var validationRules = {
      reference: {length: {min: 1,max: 12}},
      date: {length: {min: 8,max: 8}},
      amount: {length: {min: 1,max: 12}}
    };

    if (!cieUtils.validateInput(input, validationRules)) {
      var error = new Error('Longitud invalida');
      error.status = '422';
      throw error;
    }

    /*var acc = 0;
    var tmpInput = input.reference.split("").reverse().join("")
    for(var i = 0; i < input.reference.length; i++) {
      acc += cieUtils.sequentialAdd( parseInt(tmpInput[i],10) * ( ( (i+1)%2 !== 0 ) ? 2 : 1) );
    }*/

    //return input.reference + (cieUtils.nearestMultipleOf(acc,10) - acc)%10;
    return checkDigits(input.reference, input.date, input.amount);
  }
};

module.exports.Alg11 = Alg11;

function checkDigits(Fpositions,Edate,APay){

  /*let A=1,J=1;
  let B=2,K=2,S=2;
  let C=3,L=3,T=3;
  let D=4,M=4,U=4;
  let E=5,N=5,V=5;
  let F=6,O=6,W=6;
  let G=7,P=7,X=7;
  let H=8,Q=8,Y=8;
  let I=9,R=9,Z=9;*/

  let charToNum ={
    A:1,J:1,
    B:2,K:2,S:2,
    C:3,L:3,T:3,
    D:4,M:4,U:4,
    E:5,N:5,V:5,
    F:6,O:6,W:6,
    G:7,P:7,X:7,
    H:8,Q:8,Y:8,
    I:9,R:9,Z:9
  };

  let date = Edate;
  let dateBase = 2014;
  let dFormat = date;//.replace(/-/g, "");

  //Date

  let day = dFormat.substr(0,2);
  let month = dFormat.substr(2,2);
  let year = dFormat.substr(-4);

  let d = parseInt(day);
  let m = parseInt(month);
  let y = parseInt(year);

  let rYear  = (y - dateBase) * 372;
  let rMonth = (m - 1) * 31;
  let rDay   = (d - 1);

  let dateConden = (rYear+rMonth+rDay);

  // importe

  let VP = [7,3,1];
  let rVp = [];
  let iVP = 0;
  let imp = APay;
  let impFormat1 = imp.replace(/\./g, '');
  let impFormat  = impFormat1.replace(/,/g, '');
  let iCad = impFormat.length-1;

  for(let cont=0; cont<=impFormat.length; cont++){
    if(iVP === VP.length){
      iVP = 0;
    }else{
      let valorC = impFormat.charAt(iCad);
      let oVp = VP[iVP];
      console.log(valorC);
      let op = parseInt(valorC) * oVp;
      rVp.unshift(op);
      iCad--;
      iVP++;
    }
  }

  let sum = rVp.reduce((a, b) => a + b, 0);
  let cDigit = (sum % 10);

  //let random = Math.round(Math.random()*9);
  let random = 2;//Math.round(Math.random()*9);

  let result = Fpositions+dateConden+cDigit+random;

  //Referencia

  let refVP = [11,13,17,19,23];
  let rFVP = [];
  let irVP = 0;
  let iCadRef = result.length-1;

  for(let aux=0; aux<=result.length+2; aux++){
    if(irVP === refVP.length){
      irVP = 0;
    }else{
      let valorC = result.charAt(iCadRef);
      let oVp = refVP[irVP];
      let op = (charToNum[valorC]?charToNum[valorC]:parseInt(valorC)) * oVp;
      rFVP.unshift(op);
      iCadRef--;
      irVP++;
    }
  }
  let sumRef = rFVP.reduce((a, b) => a + b, 0);
  let refDigit = (sumRef % 97) + 1;
  let dLength = refDigit.toString();
  let dLengthC = dLength.length;

  if( dLengthC === 1){
    let Zero = '0';
    let addZero = Zero+refDigit;
    let finalReference = result+addZero;
    return finalReference;
  }else{
    let finalReference = result+refDigit;
    return finalReference;
  }
//
}