001// --------------------------------------------------------------------------------
002// Copyright 2002-2026 Echo Three, LLC
003//
004// Licensed under the Apache License, Version 2.0 (the "License");
005// you may not use this file except in compliance with the License.
006// You may obtain a copy of the License at
007//
008//     http://www.apache.org/licenses/LICENSE-2.0
009//
010// Unless required by applicable law or agreed to in writing, software
011// distributed under the License is distributed on an "AS IS" BASIS,
012// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013// See the License for the specific language governing permissions and
014// limitations under the License.
015// --------------------------------------------------------------------------------
016
017package com.echothree.model.control.item.server.logic.checksum;
018
019import com.echothree.util.common.message.ExecutionErrors;
020import com.echothree.util.server.message.ExecutionErrorAccumulator;
021import javax.enterprise.context.ApplicationScoped;
022import javax.inject.Inject;
023
024@ApplicationScoped
025public class BooklandEanChecksumLogic
026        extends BaseChecksumLogic
027        implements ItemAliasChecksumInterface {
028
029    @Inject
030    Ean13ChecksumLogic ean13ChecksumLogic;
031
032    protected BooklandEanChecksumLogic() {
033        super();
034    }
035
036    @Override
037    public void checkChecksum(final ExecutionErrorAccumulator eea, final String alias) {
038        if(alias.length() == 13) {
039            if(alias.matches("\\d{13}")) {
040                switch(Integer.parseInt(alias.substring(0, 3))) {
041                    case 978, 979 -> ean13ChecksumLogic.checkChecksum(eea, alias);
042                    default -> eea.addExecutionError(ExecutionErrors.IncorrectBooklandEanPrefix.name(), alias);
043                }
044            } else {
045                eea.addExecutionError(ExecutionErrors.IncorrectBooklandEanCharacter.name(), alias);
046            }
047        } else {
048            eea.addExecutionError(ExecutionErrors.IncorrectBooklandEanLength.name(), alias);
049        }
050    }
051
052}