text: "use strict";
  
  Object.defineProperty(exports, "__esModule", {
  	value: true
  });
  
  var _ean_encoder = require("./ean_encoder.js");
  
  var _ean_encoder2 = _interopRequireDefault(_ean_encoder);
  
  var _Barcode2 = require("../Barcode.js");
  
  var _Barcode3 = _interopRequireDefault(_Barcode2);
  
  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
  
  var EAN13 = function (_Barcode) {
  	_inherits(EAN13, _Barcode);
  
  	function EAN13(data, options) {
  		_classCallCheck(this, EAN13);
  
  		// Add checksum if it does not exist
  		if (data.search(/^[0-9]{12}$/) !== -1) {
  			data += checksum(data);
  		}
  
  		// Make sure the font is not bigger than the space between the guard bars
  		var _this = _possibleConstructorReturn(this, _Barcode.call(this, data, options));
  
  		if (!options.flat && options.fontSize > options.width * 10) {
  			_this.fontSize = options.width * 10;
  		} else {
  			_this.fontSize = options.fontSize;
  		}
  
  		// Make the guard bars go down half the way of the text
  		_this.guardHeight = options.height + _this.fontSize / 2 + options.textMargin;
  
  		// Adds a last character to the end of the barcode
  		_this.lastChar = options.lastChar;
  		return _this;
  	}
  
  	EAN13.prototype.valid = function valid() {
  		return this.data.search(/^[0-9]{13}$/) !== -1 && this.data[12] == checksum(this.data);
  	};
  
  	EAN13.prototype.encode = function encode() {
  		if (this.options.flat) {
  			return this.flatEncoding();
  		} else {
  			return this.guardedEncoding();
  		}
  	};
  
  	// Define the EAN-13 structure
  
  
  	EAN13.prototype.getStructure = function getStructure() {
  		return ["LLLLLL", "LLGLGG", "LLGGLG", "LLGGGL", "LGLLGG", "LGGLLG", "LGGGLL", "LGLGLG", "LGLGGL", "LGGLGL"];
  	};
  
  	// The "standard" way of printing EAN13 barcodes with guard bars
  
  
  	EAN13.prototype.guardedEncoding = function guardedEncoding() {
  		var encoder = new _ean_encoder2.default();
  		var result = [];
  
  		var structure = this.getStructure()[this.data[0]];
  
  		// Get the string to be encoded on the left side of the EAN code
  		var leftSide = this.data.substr(1, 6);
  
  		// Get the string to be encoded on the right side of the EAN code
  		var rightSide = this.data.substr(7, 6);
  
  		// Add the first digigt
  		if (this.options.displayValue) {
  			result.push({
  				data: "000000000000",
  				text: this.text.substr(0, 1),
  				options: { textAlign: "left", fontSize: this.fontSize }
  			});
  		}
  
  		// Add the guard bars
  		result.push({
  			data: "101",
  			options: { height: this.guardHeight }
  		});
  
  		// Add the left side
  		result.push({
  			data: encoder.encode(leftSide, structure),
  			text: this.text.substr(1, 6),
  			options: { fontSize: this.fontSize }
  		});
  
  		// Add the middle bits
  		result.push({
  			data: "01010",
  			options: { height: this.guardHeight }
  		});
  
  		// Add the right side
  		result.push({
  			data: encoder.encode(rightSide, "RRRRRR"),
  			text: this.text.substr(7, 6),
  			options: { fontSize: this.fontSize }
  		});
  
  		// Add the end bits
  		result.push({
  			data: "101",
  			options: { height: this.guardHeight }
  		});
  
  		if (this.options.lastChar && this.options.displayValue) {
  			result.push({ data: "00" });
  
  			result.push({
  				data: "00000",
  				text: this.options.lastChar,
  				options: { fontSize: this.fontSize }
  			});
  		}
  		return result;
  	};
  
  	EAN13.prototype.flatEncoding = function flatEncoding() {
  		var encoder = new _ean_encoder2.default();
  		var result = "";
  
  		var structure = this.getStructure()[this.data[0]];
  
  		result += "101";
  		result += encoder.encode(this.data.substr(1, 6), structure);
  		result += "01010";
  		result += encoder.encode(this.data.substr(7, 6), "RRRRRR");
  		result += "101";
  
  		return {
  			data: result,
  			text: this.text
  		};
  	};
  
  	return EAN13;
  }(_Barcode3.default);
  
  // Calulate the checksum digit
  // https://en.wikipedia.org/wiki/International_Article_Number_(EAN)#Calculation_of_checksum_digit
  
  
  function checksum(number) {
  	var result = 0;
  
  	var i;
  	for (i = 0; i < 12; i += 2) {
  		result += parseInt(number[i]);
  	}
  	for (i = 1; i < 12; i += 2) {
  		result += parseInt(number[i]) * 3;
  	}
  
  	return (10 - result % 10) % 10;
  }
  
  exports.default = EAN13;