state-advice/MatchesFinder.js

This will auto-correct the indian state

"use strict";

const _ = require("lodash");
const getStringsSimilarity = require("./LevenshteinDistance");
const ACCEPTABLE_PECENTAGE = 0.5;

function getSimilaritiesFromDataset(p, q, count) {
  count = count || 1;
  if (count <= q.length && count != 0 && count != undefined && count) {
    var similarities = [];

    q.forEach(function(element) {
      similarities.push({
        name: element,
        percentage: getStringsSimilarity(p, element)
      });
    }, this);

    similarities = _.sortBy(similarities, ["percentage"]);
    var required = [];
    for (
      var i = similarities.length - 1;
      i > similarities.length - (count + 1);
      i--
    ) {
      if (similarities[i].percentage >= ACCEPTABLE_PECENTAGE) {
        required.push(similarities[i]);
      }
    }
    return required.length ? required[0] : null;
  }
}

function matchesFinder(p, q, count) {
  p = p.toLowerCase();
  return Array.isArray(p) === false && Array.isArray(q) === false
    ? getStringsSimilarity(p, q)
    : getSimilaritiesFromDataset(p, q, count);
}

module.exports = matchesFinder;