"use strict";
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/*
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* Copyright 2008 ZXing authors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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var __extends = (this && this.__extends) || (function () {
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var extendStatics = function (d, b) {
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extendStatics = Object.setPrototypeOf ||
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({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
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function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
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return extendStatics(d, b);
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};
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return function (d, b) {
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extendStatics(d, b);
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function __() { this.constructor = d; }
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d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
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};
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})();
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var __values = (this && this.__values) || function(o) {
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var s = typeof Symbol === "function" && Symbol.iterator, m = s && o[s], i = 0;
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if (m) return m.call(o);
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if (o && typeof o.length === "number") return {
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next: function () {
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if (o && i >= o.length) o = void 0;
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return { value: o && o[i++], done: !o };
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}
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};
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throw new TypeError(s ? "Object is not iterable." : "Symbol.iterator is not defined.");
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};
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Object.defineProperty(exports, "__esModule", { value: true });
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var BarcodeFormat_1 = require("../BarcodeFormat");
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var UPCEANReader_1 = require("./UPCEANReader");
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var NotFoundException_1 = require("../NotFoundException");
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/**
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* <p>Implements decoding of the EAN-13 format.</p>
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*
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* @author dswitkin@google.com (Daniel Switkin)
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* @author Sean Owen
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* @author alasdair@google.com (Alasdair Mackintosh)
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*/
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var EAN13Reader = /** @class */ (function (_super) {
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__extends(EAN13Reader, _super);
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function EAN13Reader() {
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var _this = _super.call(this) || this;
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_this.decodeMiddleCounters = Int32Array.from([0, 0, 0, 0]);
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return _this;
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}
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EAN13Reader.prototype.decodeMiddle = function (row, startRange, resultString) {
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var e_1, _a, e_2, _b;
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var counters = this.decodeMiddleCounters;
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counters[0] = 0;
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counters[1] = 0;
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counters[2] = 0;
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counters[3] = 0;
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var end = row.getSize();
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var rowOffset = startRange[1];
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var lgPatternFound = 0;
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for (var x = 0; x < 6 && rowOffset < end; x++) {
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var bestMatch = UPCEANReader_1.default.decodeDigit(row, counters, rowOffset, UPCEANReader_1.default.L_AND_G_PATTERNS);
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resultString += String.fromCharCode(('0'.charCodeAt(0) + bestMatch % 10));
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try {
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for (var counters_1 = (e_1 = void 0, __values(counters)), counters_1_1 = counters_1.next(); !counters_1_1.done; counters_1_1 = counters_1.next()) {
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var counter = counters_1_1.value;
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rowOffset += counter;
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}
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}
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catch (e_1_1) { e_1 = { error: e_1_1 }; }
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finally {
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try {
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if (counters_1_1 && !counters_1_1.done && (_a = counters_1.return)) _a.call(counters_1);
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}
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finally { if (e_1) throw e_1.error; }
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}
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if (bestMatch >= 10) {
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lgPatternFound |= 1 << (5 - x);
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}
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}
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resultString = EAN13Reader.determineFirstDigit(resultString, lgPatternFound);
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var middleRange = UPCEANReader_1.default.findGuardPattern(row, rowOffset, true, UPCEANReader_1.default.MIDDLE_PATTERN, new Int32Array(UPCEANReader_1.default.MIDDLE_PATTERN.length).fill(0));
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rowOffset = middleRange[1];
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for (var x = 0; x < 6 && rowOffset < end; x++) {
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var bestMatch = UPCEANReader_1.default.decodeDigit(row, counters, rowOffset, UPCEANReader_1.default.L_PATTERNS);
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resultString += String.fromCharCode(('0'.charCodeAt(0) + bestMatch));
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try {
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for (var counters_2 = (e_2 = void 0, __values(counters)), counters_2_1 = counters_2.next(); !counters_2_1.done; counters_2_1 = counters_2.next()) {
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var counter = counters_2_1.value;
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rowOffset += counter;
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}
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}
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catch (e_2_1) { e_2 = { error: e_2_1 }; }
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finally {
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try {
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if (counters_2_1 && !counters_2_1.done && (_b = counters_2.return)) _b.call(counters_2);
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}
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finally { if (e_2) throw e_2.error; }
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}
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}
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return { rowOffset: rowOffset, resultString: resultString };
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};
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EAN13Reader.prototype.getBarcodeFormat = function () {
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return BarcodeFormat_1.default.EAN_13;
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};
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EAN13Reader.determineFirstDigit = function (resultString, lgPatternFound) {
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for (var d = 0; d < 10; d++) {
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if (lgPatternFound === this.FIRST_DIGIT_ENCODINGS[d]) {
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resultString = String.fromCharCode(('0'.charCodeAt(0) + d)) + resultString;
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return resultString;
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}
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}
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throw new NotFoundException_1.default();
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};
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EAN13Reader.FIRST_DIGIT_ENCODINGS = [0x00, 0x0B, 0x0D, 0xE, 0x13, 0x19, 0x1C, 0x15, 0x16, 0x1A];
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return EAN13Reader;
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}(UPCEANReader_1.default));
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exports.default = EAN13Reader;
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