docparse-supplier-nge/lib/getCostOtherSupply.js

process ngrid electric utility bill data for use in the docparse system

/**
 * @param {String} text the entire supply section of the bill
 * @see {Function} get_cost_other_total
 */

var async = require('async');
var num = require('num');
module.exports = function(text, callback) {
  var anchor;
  var anchors = [
    'Basic Service Fixed',
    'Basic Service Variable',
    'Electricity Supply',
    'Energy Service',
    'Energy Charge'
  ];
  for (var i in anchors) {
    var pattern = anchors[i];
    var regex = new RegExp(pattern);
    if (text.match(regex)) {
      anchor = pattern;
    }
  }
  var replace_pattern = new RegExp('[\\s\\S]*?'+anchor +'.*$','m');
  text = text.replace(replace_pattern, '');
  var costs = [];
  var total = num(0);
  var lines = text.match(/[^\r\n]+/g);
  async.forEach(
    lines,
    function (line, cb) {
      var line_text = line;
      get_other_cost_line_item(line_text, function (err, reply) {
        if (err) { return cb(err); }
        if (!reply) { return cb(); }
        costs.push(reply);
        total = total.add(num(reply.total));
        cb();
      });
    },
    function(err) {
      if (err) { return callback(err); }
      var output = {
        total: total.toString(),
        costs: costs
      };
      return callback(null, output);
    }
  );
}