my-own-words/src/remove.js

A small tool that I have created to keep safe all those words/expressions that I come across when I'm learning a new language

const {
  listExists, removeList, getAndParseWords, saveWords,
} = require('./fs-helpers.js');

function removeWord(listName, word) {
  const listOfWords = getAndParseWords(listName);

  delete listOfWords[word];

  return saveWords(listName, listOfWords);
}

function removeDefinition(listName, word, definition) {
  const listOfWords = getAndParseWords(listName);
  const positionOfDef = listOfWords[word].indexOf(definition);

  if (positionOfDef !== -1) {
    listOfWords[word].splice(positionOfDef, 1);
    return saveWords(listName, listOfWords);
  }
  return "Definition doesn't exists!";
}

function remove(listName, word, definition) {
  if (!listExists(listName)) return `${listName} list doesn't exists!`;
  else if (listName && (!word && definition)) return 'You must specify a word!';
  else if (listName && (!word && !definition)) return removeList(listName);
  else if (listName && word && !definition) return removeWord(listName, word, definition);
  else if (listName && word && definition) return removeDefinition(listName, word, definition);
}

module.exports = {
  remove,
};