docparse-dumpinvoices/getFeed.js

takes a list of couchdb invoice ids and exports the data contained within those invoices to an Excel spreadsheet

var getNotes = require('./lib/getNotes')
var costsWithoutSalesTax = require('./lib/costsWithoutSalesTax')
var costsWithoutLatePayments = require('./lib/costsWithoutLatePayments')
var getSalesTaxCostValue = require('./lib/getSalesTaxCostValue')
var getLatePaymentChargesValue = require('./lib/getLatePaymentChargesValue')
var getLatePaymentCreditsValue = require('./lib/getLatePaymentCreditsValue')
var num = require('num')
var moment = require('moment')
var es = require('event-stream')
var async = require('async')
var inspect = require('eyespect').inspector({maxLength: 9999999})
var logger = require('loggly-console-logger')
module.exports = function (data, callback) {
  var invoiceIDs = data.invoiceIDs
  var db = data.db
  var opts = {
    include_docs: true,
    keys: invoiceIDs
  }
  async.map(
    invoiceIDs,
    function(id, cb) {
      logger.debug('getting invoice by id',{
        invoiceID: id,
        section: 'getFeed',
        role: 'export'
      })
      db.get(id, function(err, doc) {
        if (err) {
          return cb({
            message: 'failed to get invoice by id',
            id: id,
            error: err,
            stack: new Error().stack
          })
        }
        var invoice = doc.json
        var fromDate = moment(invoice.fromDate).utc().startOf('day')
        var toDate = moment(invoice.toDate).utc().startOf('day')
        invoice.fromDate = fromDate.format('YYYY-MM-DD')
        invoice.toDate = toDate.format('YYYY-MM-DD')
        invoice = parseInvoice(invoice)
        cb(null, invoice)
      })
    },
    function(err, invoices) {
      if (err) { return callback(err) }
      invoiceIDs = null
      var counts = invoices.reduce(function (prev, doc) {
        var invoiceType = doc.invoiceType
        var typeOfSupply = invoiceType.type
        var value = prev[typeOfSupply] || 0
        prev[typeOfSupply] = value + 1
        return prev
      }, {})
      inspect(counts, 'counts')
      var reader = es.readArray(invoices)
      callback(null, reader)
      reader = null
    })
}

function parseInvoice(invoice) {
  // trim spaces
  if (invoice.costDelivery) {
    invoice.costDelivery = invoice.costDelivery.replace(/\s/g,'')
  }
  if (invoice.costSupply) {
    invoice.costSupply = invoice.costSupply.replace(/\s/g,'')
  }

  // negative to pay values should output as 0
  if (invoice.toPay) {
    var value = num(invoice.toPay)
    if (value.lt(0)) {
      invoice.toPay = '0'
    }
  }
  var costs = invoice.costOther.costs.map(function (cost) {
    var value = cost.value.replace(/\s/g,'')
    cost.value = value
    return cost
  })
  var notesCosts = costsWithoutSalesTax(costs)

  invoice.latePaymentCharges = getLatePaymentChargesValue(notesCosts)
  invoice.latePaymentCredits = getLatePaymentCreditsValue(notesCosts)
  var otherCosts = costsWithoutLatePayments(notesCosts)
  invoice.costSalesTax = getSalesTaxCostValue(costs)
  invoice.costSupplyWithoutSalesTax = num(invoice.costSupply).sub(invoice.costSalesTax).toString()

  invoice.notes = getNotes(notesCosts)
  var total = otherCosts.reduce(function (a, b) {
    return a.add(b.value)
  }, num(0)).toString()
  invoice.costOther.total = total

  // if (costs.length > 0) {
  //   inspect(costs,'costs')
  // }
  return invoice
}