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.control.user.forum.server.command;
018
019import com.echothree.control.user.forum.common.form.DeleteForumMessageAttachmentDescriptionForm;
020import com.echothree.model.control.forum.server.control.ForumControl;
021import com.echothree.model.control.party.server.control.PartyControl;
022import com.echothree.model.data.user.common.pk.UserVisitPK;
023import com.echothree.util.common.message.ExecutionErrors;
024import com.echothree.util.common.validation.FieldDefinition;
025import com.echothree.util.common.validation.FieldType;
026import com.echothree.util.common.command.BaseResult;
027import com.echothree.util.server.control.BaseSimpleCommand;
028import com.echothree.util.server.persistence.Session;
029import java.util.List;
030import javax.enterprise.context.Dependent;
031
032@Dependent
033public class DeleteForumMessageAttachmentDescriptionCommand
034        extends BaseSimpleCommand<DeleteForumMessageAttachmentDescriptionForm> {
035    
036    private final static List<FieldDefinition> FORM_FIELD_DEFINITIONS;
037    
038    static {
039        FORM_FIELD_DEFINITIONS = List.of(
040                new FieldDefinition("ForumMessageName", FieldType.ENTITY_NAME, true, null, null),
041                new FieldDefinition("ForumMessageAttachmentSequence", FieldType.UNSIGNED_INTEGER, true, null, null),
042                new FieldDefinition("LanguageIsoName", FieldType.ENTITY_NAME, true, null, null)
043                );
044    }
045    
046    /** Creates a new instance of DeleteForumMessageAttachmentDescriptionCommand */
047    public DeleteForumMessageAttachmentDescriptionCommand() {
048        super(null, FORM_FIELD_DEFINITIONS, false);
049    }
050    
051    @Override
052    protected BaseResult execute() {
053        var forumControl = Session.getModelController(ForumControl.class);
054        var forumMessageName = form.getForumMessageName();
055        var forumMessage = forumControl.getForumMessageByNameForUpdate(forumMessageName);
056
057        if(forumMessage != null) {
058            var forumMessageAttachmentSequence = Integer.valueOf(form.getForumMessageAttachmentSequence());
059            var forumMessageAttachment = forumControl.getForumMessageAttachmentBySequence(forumMessage, forumMessageAttachmentSequence);
060
061            if(forumMessageAttachment != null) {
062                var partyControl = Session.getModelController(PartyControl.class);
063                var languageIsoName = form.getLanguageIsoName();
064                var language = partyControl.getLanguageByIsoName(languageIsoName);
065
066                if(language != null) {
067                    var forumMessageAttachmentDescription = forumControl.getForumMessageAttachmentDescriptionForUpdate(forumMessageAttachment, language);
068
069                    if(forumMessageAttachmentDescription != null) {
070                        forumControl.deleteForumMessageAttachmentDescription(forumMessageAttachmentDescription, getPartyPK());
071                    } else {
072                        addExecutionError(ExecutionErrors.UnknownForumMessageAttachmentDescription.name(), forumMessageName,
073                                forumMessageAttachmentSequence.toString(), languageIsoName);
074                    }
075                } else {
076                    addExecutionError(ExecutionErrors.UnknownLanguageIsoName.name(), languageIsoName);
077                }
078            } else {
079                addExecutionError(ExecutionErrors.UnknownForumMessageAttachment.name(), forumMessageName, forumMessageAttachmentSequence.toString());
080            }
081        } else {
082            addExecutionError(ExecutionErrors.UnknownForumMessageName.name(), forumMessageName);
083        }
084
085        return null;
086    }
087    
088}