var makeString = require('./helper/makeString');
var defaultToWhiteSpace = require('./helper/defaultToWhiteSpace');
var trim = require('./trim');
var dasherize = require('./dasherize');

module.exports = function slugify(str) {
  var from  = "ąàáäâãåæăćčĉęèéëêĝĥìíïîĵłľńňòóöőôõðøśșšŝťțŭùúüűûñÿýçżźž",
      to    = "aaaaaaaaaccceeeeeghiiiijllnnoooooooossssttuuuuuunyyczzz",
      regex = new RegExp(defaultToWhiteSpace(from), 'g');

  str = makeString(str).toLowerCase().replace(regex, function(c){
    var index = from.indexOf(c);
    return to.charAt(index) || '-';
  });

  return trim(dasherize(str.replace(/[^\w\s-]/g, '-')), '-');
};