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 java.util.List;
029import javax.enterprise.context.Dependent;
030import javax.inject.Inject;
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    @Inject
047    ForumControl forumControl;
048
049    @Inject
050    PartyControl partyControl;
051
052    
053    /** Creates a new instance of DeleteForumMessageAttachmentDescriptionCommand */
054    public DeleteForumMessageAttachmentDescriptionCommand() {
055        super(null, FORM_FIELD_DEFINITIONS, false);
056    }
057    
058    @Override
059    protected BaseResult execute() {
060        var forumMessageName = form.getForumMessageName();
061        var forumMessage = forumControl.getForumMessageByNameForUpdate(forumMessageName);
062
063        if(forumMessage != null) {
064            var forumMessageAttachmentSequence = Integer.valueOf(form.getForumMessageAttachmentSequence());
065            var forumMessageAttachment = forumControl.getForumMessageAttachmentBySequence(forumMessage, forumMessageAttachmentSequence);
066
067            if(forumMessageAttachment != null) {
068                var languageIsoName = form.getLanguageIsoName();
069                var language = partyControl.getLanguageByIsoName(languageIsoName);
070
071                if(language != null) {
072                    var forumMessageAttachmentDescription = forumControl.getForumMessageAttachmentDescriptionForUpdate(forumMessageAttachment, language);
073
074                    if(forumMessageAttachmentDescription != null) {
075                        forumControl.deleteForumMessageAttachmentDescription(forumMessageAttachmentDescription, getPartyPK());
076                    } else {
077                        addExecutionError(ExecutionErrors.UnknownForumMessageAttachmentDescription.name(), forumMessageName,
078                                forumMessageAttachmentSequence.toString(), languageIsoName);
079                    }
080                } else {
081                    addExecutionError(ExecutionErrors.UnknownLanguageIsoName.name(), languageIsoName);
082                }
083            } else {
084                addExecutionError(ExecutionErrors.UnknownForumMessageAttachment.name(), forumMessageName, forumMessageAttachmentSequence.toString());
085            }
086        } else {
087            addExecutionError(ExecutionErrors.UnknownForumMessageName.name(), forumMessageName);
088        }
089
090        return null;
091    }
092    
093}