
import _constants from './constants.js';

import _EAN2 from'./EAN.js';
 
var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();

var _get = function get(object, property, receiver) { if (object === null) object = Function.prototype; var desc = Object.getOwnPropertyDescriptor(object, property); if (desc === undefined) { var parent = Object.getPrototypeOf(object); if (parent === null) { return undefined; } else { return get(parent, property, receiver); } } else if ("value" in desc) { return desc.value; } else { var getter = desc.get; if (getter === undefined) { return undefined; } return getter.call(receiver); } };

var _EAN3 = _interopRequireDefault(_EAN2);

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

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; } // Encoding documentation:
// https://en.wikipedia.org/wiki/International_Article_Number_(EAN)#Binary_encoding_of_data_digits_into_EAN-13_barcode

// Calculate the checksum digit
// https://en.wikipedia.org/wiki/International_Article_Number_(EAN)#Calculation_of_checksum_digit
var checksum = function checksum(number) {
	var res = number.substr(0, 12).split('').map(function (n) {
		return +n;
	}).reduce(function (sum, a, idx) {
		return idx % 2 ? sum + a * 3 : sum + a;
	}, 0);

	return (10 - res % 10) % 10;
};

 var EAN13 = function (_EAN) {
 	_inherits(EAN13, _EAN);
 
 	function EAN13(data, options) {
 		_classCallCheck(this, EAN13);
 
 		// Add checksum if it does not exist
 		if (data.search(/^[0-9]{12}$/) !== -1) {
 			data += checksum(data);
 		}
 
 		// Adds a last character to the end of the barcode
 		var _this = _possibleConstructorReturn(this, (EAN13.__proto__ || Object.getPrototypeOf(EAN13)).call(this, data, options));
 
 		_this.lastChar = options.lastChar;
 		return _this;
 	}
 
 	_createClass(EAN13, [{
 		key: 'valid',
 		value: function valid() {
 			return this.data.search(/^[0-9]{13}$/) !== -1 && +this.data[12] === checksum(this.data);
 		}
 	}, {
 		key: 'leftText',
 		value: function leftText() {
 			return _get(EAN13.prototype.__proto__ || Object.getPrototypeOf(EAN13.prototype), 'leftText', this).call(this, 1, 6);
 		}
 	}, {
 		key: 'leftEncode',
 		value: function leftEncode() {
 			var data = this.data.substr(1, 6);
 			var structure = _constants.EAN13_STRUCTURE[this.data[0]];
 			return _get(EAN13.prototype.__proto__ || Object.getPrototypeOf(EAN13.prototype), 'leftEncode', this).call(this, data, structure);
 		}
 	}, {
 		key: 'rightText',
 		value: function rightText() {
 			return _get(EAN13.prototype.__proto__ || Object.getPrototypeOf(EAN13.prototype), 'rightText', this).call(this, 7, 6);
 		}
 	}, {
 		key: 'rightEncode',
 		value: function rightEncode() {
 			var data = this.data.substr(7, 6);
 			return _get(EAN13.prototype.__proto__ || Object.getPrototypeOf(EAN13.prototype), 'rightEncode', this).call(this, data, 'RRRRRR');
 		}
 
 		// The "standard" way of printing EAN13 barcodes with guard bars
 
 	}, {
 		key: 'encodeGuarded',
 		value: function encodeGuarded() {
 			var data = _get(EAN13.prototype.__proto__ || Object.getPrototypeOf(EAN13.prototype), 'encodeGuarded', this).call(this);
 
 			// Extend data with left digit & last character
 			if (this.options.displayValue) {
 				data.unshift({
 					data: '000000000000',
 					text: this.text.substr(0, 1),
 					options: { textAlign: 'left', fontSize: this.fontSize }
 				});
 
 				if (this.options.lastChar) {
 					data.push({
 						data: '00'
 					});
 					data.push({
 						data: '00000',
 						text: this.options.lastChar,
 						options: { fontSize: this.fontSize }
 					});
 				}
 			}
 
 			return data;
 		}
 	}]);
 
 	return EAN13;
 }(_EAN3.default);

export default EAN13