text2smiles/lib/index.js

Converting text to smiles

'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = convertText2Smiles;

var _serift = require('./serift');

var STRING_LENGTH = 8;

function convertText2Smiles() {
  var text = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : '';
  var bgSymbol = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : '🤘';
  var textSymbol = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : '💀';
  var strLength = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : STRING_LENGTH;

  if (!text.length) return text;

  function getLetter(symb, lineIndex) {
    var letter = void 0;
    var POSITION = lineIndex * _serift.LETTER_WIDTH;

    switch (symb) {
      case "'":
      case '"':
        letter = _serift.ABC.quote;
        break;
      default:
        letter = _serift.ABC[symb];
    }

    if (!letter) {
      letter = _serift.ABC[' '];
    }

    return letter.slice(POSITION, POSITION + (_serift.LETTER_WIDTH - 1));
  }

  function generateLine(str) {
    var result = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : '';
    var secondLine = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : false;

    var currentResult = result;
    var currentString = str.slice(0, strLength);
    var surplusString = str.slice(strLength);

    for (var lineIndex = secondLine ? 1 : 0; lineIndex < _serift.LETTER_HEIGHT; lineIndex += 1) {
      for (var letterIndex = 0; letterIndex < currentString.length; letterIndex += 1) {
        var letter = currentString[letterIndex];

        currentResult += getLetter(letter, lineIndex);
      }

      currentResult += bgSymbol + '\n';
    }

    if (surplusString.length > 0) {
      return generateLine(surplusString, currentResult, true);
    }

    return currentResult;
  }

  return generateLine(text.toLowerCase()).replace(/\./g, bgSymbol).replace(/\*/g, textSymbol);
}