fecr/build/fecr/voucher.js

Modulo de comprobantes electrónicos para el API del Ministerio de Hacienda de Costa Rica versión 4.3

"use strict";

var xml2js = require("xml2js");

var moment = require("moment-timezone");

var utils = require("./utils.js");

var signer = require("./signer.js");

var Summary = require("./voucher/summary.js");

class Voucher {
  constructor(voucher) {
    this.cert = voucher.cert;
    this.api = voucher.api;
    this.date = voucher.date ? moment.tz(voucher.date, "America/Costa_Rica") : moment.tz("America/Costa_Rica");
    this.issuer = voucher.issuer;
    this.headquarters = voucher.headquarters ? voucher.headquarters : 1;
    this.terminal = voucher.terminal ? voucher.terminal : 1;
    this.number = voucher.number;
    this.situation = voucher.situation ? voucher.situation : "1";
    this.activityCode = voucher.activityCode;
    this.securityCode = voucher.securityCode;

    if (voucher.receiver) {
      this.receiver = voucher.receiver;
    }

    this.condition = voucher.condition ? voucher.condition : "01";
    this.paymentType = voucher.paymentType ? voucher.paymentType : "01";

    if (voucher.creditTerm) {
      this.creditTerm = voucher.creditTerm;
    }

    if (voucher.items) {
      this.items = voucher.items;
    }

    if (voucher.otherCharges) {
      this.otherCharges = voucher.otherCharges;
    }

    if (voucher.currency) {
      this.currency = voucher.currency;
    }

    if (voucher.exchangeRate) {
      this.exchangeRate = voucher.exchangeRate;
    }

    if (voucher.summary) {
      this.summary = voucher.summary;
    } else {
      this.generateSummary();
    }

    if (voucher.references) {
      this.references = voucher.references;
    }

    if (voucher.others) {
      this.others = voucher.others;
    }

    if (voucher.callbackUrl) {
      this.callbackUrl = voucher.callbackUrl;
    }
  }

  buildXml() {
    var voucher = {
      [this.rootTag]: {
        $: this.namespaces
      }
    };
    voucher[this.rootTag].Clave = this.key;
    voucher[this.rootTag].CodigoActividad = this.activityCode;
    voucher[this.rootTag].NumeroConsecutivo = this.sequence;
    voucher[this.rootTag].FechaEmision = this.date.format();
    voucher[this.rootTag].Emisor = this.issuer.generate();

    if (this.receiver) {
      voucher[this.rootTag].Receptor = this.receiver.generate();
    }

    voucher[this.rootTag].CondicionVenta = this.condition;

    if (this.creditTerm && this.condition === "02") {
      voucher[this.rootTag].PlazoCredito = this.creditTerm;
    }

    voucher[this.rootTag].MedioPago = this.paymentType;

    if (this.items) {
      var lines = [];
      this.items.forEach(item => {
        lines.push(item.generate());
      });
      voucher[this.rootTag].DetalleServicio = {
        LineaDetalle: lines
      };
    }

    if (this.otherCharges) {
      var charges = [];
      this.otherCharges.forEach(charge => {
        charges.push(charge.generate());
      });
      voucher[this.rootTag].OtrosCargos = charges;
    }

    voucher[this.rootTag].ResumenFactura = this.summary ? this.summary.generate() : this.generateSummary({
      items: voucher[this.rootTag].DetalleServicio.LineaDetalle,
      otherCharges: voucher[this.rootTag].OtrosCargos
    });

    if (this.references) {
      var references = [];
      this.references.forEach(reference => {
        references.push(reference.generate());
      });
      voucher[this.rootTag].InformacionReferencia = references;
    }

    if (this.others) {
      voucher[this.rootTag].Otros = this.others.generate();
    }

    var builder = new xml2js.Builder();
    var xmlString = builder.buildObject(voucher);
    this.data = voucher;
    return xmlString.replace(/[\r\n]/g, "").replace(/\s{2,}/g, "");
  }

  generateSequence() {
    var headquarters = utils.zfill(this.headquarters, 3);
    var terminal = utils.zfill(this.terminal, 5);
    var type = utils.zfill(this.voucherType, 2);
    var number = utils.zfill(this.number, 10);
    this.sequence = headquarters + terminal + type + number;
  }

  generateKey() {
    var country = "506";
    var day = utils.zfill(this.date.date(), 2);
    var month = utils.zfill(this.date.month() + 1, 2);
    var year = utils.zfill(this.date.year() - 2000, 2);
    var idNumber = utils.zfill(this.issuer.id, 12);
    var type = utils.zfill(this.situation, 1);
    var securityCode = utils.zfill(this.securityCode, 8); // eslint-disable-next-line max-len

    this.key = country + day + month + year + idNumber + this.sequence + type + securityCode;
  }

  generateSummary() {
    var servicesTaxableTotal = 0;
    var servicesExentTotal = 0;
    var servicesExoneTotal = 0;
    var goodsTaxableTotal = 0;
    var goodsExentTotal = 0;
    var goodsExoneTotal = 0;
    var discountTotal = 0;
    var taxTotal = 0;
    var otherChargesTotal = 0;
    this.otherCharges.forEach((_ref) => {
      var {
        amount
      } = _ref;
      otherChargesTotal += Number(amount);
    });
    this.items.forEach(item => {
      if (item.taxes) {
        var allowances = [];
        item.taxes.forEach((_ref2) => {
          var {
            allowance
          } = _ref2;
          if (allowance) allowances.push(allowance);
        });

        if (item.unit === "Al" || item.unit === "Alc" || item.unit === "Cm" || item.unit === "I" || item.unit === "Os" || item.unit === "Sp" || item.unit === "Spe" || item.unit === "St") {
          if (allowances.length > 0) {
            servicesExoneTotal += item.total;
          } else {
            servicesTaxableTotal += item.total;
          }
        } else {
          if (allowances.length > 0) {
            goodsExoneTotal += item.total;
          } else {
            goodsTaxableTotal += item.total;
          }
        }

        taxTotal += item.taxNet;
      } else if (item.unit === "Al" || item.unit === "Alc" || item.unit === "Cm" || item.unit === "I" || item.unit === "Os" || item.unit === "Sp" || item.unit === "Spe" || item.unit === "St") {
        servicesExentTotal += item.total;
      } else {
        goodsExentTotal += item.total;
      }

      if (item.discounts) {
        item.discounts.forEach((_ref3) => {
          var {
            discountAmount
          } = _ref3;
          discountTotal += discountAmount;
        });
      }
    });
    this.summary = new Summary({
      currency: this.currency,
      exchangeRate: this.exchangeRate,
      servicesTaxableTotal,
      servicesExentTotal,
      servicesExoneTotal,
      goodsTaxableTotal,
      goodsExentTotal,
      goodsExoneTotal,
      discountTotal,
      taxTotal,
      otherChargesTotal
    });
  }

  sign() {
    return new Promise((resolve, reject) => {
      signer.signXmlString(this.buildXml(), this.cert).then(signedXml => {
        this.signedXml = signedXml;
        this.signedXmlBase64 = Buffer.from(signedXml).toString("base64");
        resolve(signedXml);
      }).catch(error => {
        reject(error);
      });
    });
  }

  getPayload() {
    if (!this.signedXmlBase64) {
      throw Error("the document has not been signed yet");
    }

    var payload = {
      clave: this.key,
      fecha: this.date.format(),
      emisor: {
        tipoIdentificacion: this.issuer.idType,
        numeroIdentificacion: this.issuer.id
      }
    };

    if (this.receiver) {
      payload.receptor = {
        tipoIdentificacion: this.receiver.idType,
        numeroIdentificacion: this.receiver.id
      };
    }

    if (this.callbackUrl) {
      payload.callbackUrl = this.callbackUrl;
    }

    payload.comprobanteXml = this.signedXmlBase64;
    return payload;
  }

  send() {
    return new Promise((resolve, reject) => {
      this.sign().then(() => this.api.send(this.getPayload())).then(() => {
        resolve({
          data: this.data,
          xml: this.signedXmlBase64
        });
      }).catch(error => {
        reject(error);
      });
    });
  }

}

module.exports = Voucher;