"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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Object.defineProperty(exports, "__esModule", { value: true });
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var BarcodeFormat_1 = require("../BarcodeFormat");
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var DecodeHintType_1 = require("../DecodeHintType");
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var Result_1 = require("../Result");
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var ResultMetadataType_1 = require("../ResultMetadataType");
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var ResultPoint_1 = require("../ResultPoint");
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var UPCEANExtensionSupport_1 = require("./UPCEANExtensionSupport");
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var AbstractUPCEANReader_1 = require("./AbstractUPCEANReader");
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var NotFoundException_1 = require("../NotFoundException");
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var FormatException_1 = require("../FormatException");
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var ChecksumException_1 = require("../ChecksumException");
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/**
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* <p>Encapsulates functionality and implementation that is common to UPC and EAN families
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* of one-dimensional barcodes.</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 UPCEANReader = /** @class */ (function (_super) {
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__extends(UPCEANReader, _super);
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function UPCEANReader() {
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var _this = _super.call(this) || this;
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_this.decodeRowStringBuffer = '';
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UPCEANReader.L_AND_G_PATTERNS = UPCEANReader.L_PATTERNS.map(function (arr) { return Int32Array.from(arr); });
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for (var i = 10; i < 20; i++) {
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var widths = UPCEANReader.L_PATTERNS[i - 10];
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var reversedWidths = new Int32Array(widths.length);
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for (var j = 0; j < widths.length; j++) {
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reversedWidths[j] = widths[widths.length - j - 1];
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}
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UPCEANReader.L_AND_G_PATTERNS[i] = reversedWidths;
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}
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return _this;
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}
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UPCEANReader.prototype.decodeRow = function (rowNumber, row, hints) {
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var startGuardRange = UPCEANReader.findStartGuardPattern(row);
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var resultPointCallback = hints == null ? null : hints.get(DecodeHintType_1.default.NEED_RESULT_POINT_CALLBACK);
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if (resultPointCallback != null) {
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var resultPoint_1 = new ResultPoint_1.default((startGuardRange[0] + startGuardRange[1]) / 2.0, rowNumber);
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resultPointCallback.foundPossibleResultPoint(resultPoint_1);
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}
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var budello = this.decodeMiddle(row, startGuardRange, this.decodeRowStringBuffer);
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var endStart = budello.rowOffset;
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var result = budello.resultString;
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if (resultPointCallback != null) {
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var resultPoint_2 = new ResultPoint_1.default(endStart, rowNumber);
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resultPointCallback.foundPossibleResultPoint(resultPoint_2);
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}
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var endRange = UPCEANReader.decodeEnd(row, endStart);
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if (resultPointCallback != null) {
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var resultPoint_3 = new ResultPoint_1.default((endRange[0] + endRange[1]) / 2.0, rowNumber);
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resultPointCallback.foundPossibleResultPoint(resultPoint_3);
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}
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// Make sure there is a quiet zone at least as big as the end pattern after the barcode. The
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// spec might want more whitespace, but in practice this is the maximum we can count on.
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var end = endRange[1];
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var quietEnd = end + (end - endRange[0]);
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if (quietEnd >= row.getSize() || !row.isRange(end, quietEnd, false)) {
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throw new NotFoundException_1.default();
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}
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var resultString = result.toString();
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// UPC/EAN should never be less than 8 chars anyway
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if (resultString.length < 8) {
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throw new FormatException_1.default();
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}
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if (!UPCEANReader.checkChecksum(resultString)) {
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throw new ChecksumException_1.default();
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}
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var left = (startGuardRange[1] + startGuardRange[0]) / 2.0;
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var right = (endRange[1] + endRange[0]) / 2.0;
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var format = this.getBarcodeFormat();
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var resultPoint = [new ResultPoint_1.default(left, rowNumber), new ResultPoint_1.default(right, rowNumber)];
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var decodeResult = new Result_1.default(resultString, null, 0, resultPoint, format, new Date().getTime());
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var extensionLength = 0;
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try {
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var extensionResult = UPCEANExtensionSupport_1.default.decodeRow(rowNumber, row, endRange[1]);
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decodeResult.putMetadata(ResultMetadataType_1.default.UPC_EAN_EXTENSION, extensionResult.getText());
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decodeResult.putAllMetadata(extensionResult.getResultMetadata());
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decodeResult.addResultPoints(extensionResult.getResultPoints());
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extensionLength = extensionResult.getText().length;
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}
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catch (err) {
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}
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var allowedExtensions = hints == null ? null : hints.get(DecodeHintType_1.default.ALLOWED_EAN_EXTENSIONS);
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if (allowedExtensions != null) {
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var valid = false;
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for (var length_1 in allowedExtensions) {
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if (extensionLength.toString() === length_1) { // check me
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valid = true;
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break;
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}
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}
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if (!valid) {
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throw new NotFoundException_1.default();
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}
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}
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if (format === BarcodeFormat_1.default.EAN_13 || format === BarcodeFormat_1.default.UPC_A) {
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// let countryID = eanManSupport.lookupContryIdentifier(resultString); todo
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// if (countryID != null) {
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// decodeResult.putMetadata(ResultMetadataType.POSSIBLE_COUNTRY, countryID);
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// }
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}
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return decodeResult;
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};
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UPCEANReader.checkChecksum = function (s) {
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return UPCEANReader.checkStandardUPCEANChecksum(s);
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};
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UPCEANReader.checkStandardUPCEANChecksum = function (s) {
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var length = s.length;
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if (length === 0)
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return false;
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var check = parseInt(s.charAt(length - 1), 10);
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return UPCEANReader.getStandardUPCEANChecksum(s.substring(0, length - 1)) === check;
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};
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UPCEANReader.getStandardUPCEANChecksum = function (s) {
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var length = s.length;
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var sum = 0;
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for (var i = length - 1; i >= 0; i -= 2) {
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var digit = s.charAt(i).charCodeAt(0) - '0'.charCodeAt(0);
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if (digit < 0 || digit > 9) {
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throw new FormatException_1.default();
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}
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sum += digit;
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}
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sum *= 3;
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for (var i = length - 2; i >= 0; i -= 2) {
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var digit = s.charAt(i).charCodeAt(0) - '0'.charCodeAt(0);
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if (digit < 0 || digit > 9) {
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throw new FormatException_1.default();
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}
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sum += digit;
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}
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return (1000 - sum) % 10;
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};
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UPCEANReader.decodeEnd = function (row, endStart) {
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return UPCEANReader.findGuardPattern(row, endStart, false, UPCEANReader.START_END_PATTERN, new Int32Array(UPCEANReader.START_END_PATTERN.length).fill(0));
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};
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return UPCEANReader;
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}(AbstractUPCEANReader_1.default));
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exports.default = UPCEANReader;
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