validate-chord/cjs/index.js

🎼 Validates a chord (scientific pitch notation) and throws errors if needed

'use strict';

exports.__esModule = true;

var _validateNote = require('validate-note');

var _validateNote2 = _interopRequireDefault(_validateNote);

var _types = require('./data/types');

var _types2 = _interopRequireDefault(_types);

var _getNote = require('./lib/getNote');

var _getNote2 = _interopRequireDefault(_getNote);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

exports.default = function (chord) {
  var _ref = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {},
      _ref$maxOctave = _ref.maxOctave,
      maxOctave = _ref$maxOctave === undefined ? 8 : _ref$maxOctave,
      _ref$flatToSharp = _ref.flatToSharp,
      flatToSharp = _ref$flatToSharp === undefined ? false : _ref$flatToSharp;

  if (typeof chord !== 'string') {
    throw new Error('\'' + chord + '\' is not a valid chord');
  }

  var note = (0, _getNote2.default)(chord);

  var sNote = (0, _validateNote2.default)(note, { maxOctave: maxOctave, flatToSharp: flatToSharp, octave: true });

  var type = _types2.default[chord.split(note)[1].toLowerCase()];

  if (!type) throw new Error('\'' + chord.split(note)[1] + '\' is not a valid chord type');

  Object.keys(sNote).forEach(function (key) {
    return !sNote[key] && delete sNote[key];
  });

  return {
    note: sNote,
    type: type
  };
};

module.exports = exports['default'];