'use strict';

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;
	};
}();

import _constants from './constants'

import _encoder2 from './encoder'

import _Barcode3 from '../Barcode.js'

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/EAN_5#Encoding

var checksum = function checksum(data) {
	var result = data.split('').map(function(n) {
		return +n;
	}).reduce(function(sum, a, idx) {
		return idx % 2 ? sum + a * 9 : sum + a * 3;
	}, 0);
	return result % 10;
};

var EAN5 = function(_Barcode) {
	_inherits(EAN5, _Barcode);

	function EAN5(data, options) {
		_classCallCheck(this, EAN5);

		return _possibleConstructorReturn(this, (EAN5.__proto__ || Object.getPrototypeOf(EAN5)).call(this, data,
			options));
	}

	_createClass(EAN5, [{
		key: 'valid',
		value: function valid() {
			return this.data.search(/^[0-9]{5}$/) !== -1;
		}
	}, {
		key: 'encode',
		value: function encode() {
			var structure = _constants.EAN5_STRUCTURE[checksum(this.data)];
			return {
				data: '1011' + (0, _encoder2)(this.data, structure, '01'),
				text: this.text
			};
		}
	}]);

	return EAN5;
}(_Barcode3);

export default EAN5;