001// --------------------------------------------------------------------------------
002// Copyright 2002-2025 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.Arrays;
030import java.util.Collections;
031import java.util.List;
032import javax.enterprise.context.RequestScoped;
033
034@RequestScoped
035public class DeleteForumMessageAttachmentDescriptionCommand
036        extends BaseSimpleCommand<DeleteForumMessageAttachmentDescriptionForm> {
037    
038    private final static List<FieldDefinition> FORM_FIELD_DEFINITIONS;
039    
040    static {
041        FORM_FIELD_DEFINITIONS = Collections.unmodifiableList(Arrays.asList(
042                new FieldDefinition("ForumMessageName", FieldType.ENTITY_NAME, true, null, null),
043                new FieldDefinition("ForumMessageAttachmentSequence", FieldType.UNSIGNED_INTEGER, true, null, null),
044                new FieldDefinition("LanguageIsoName", FieldType.ENTITY_NAME, true, null, null)
045                ));
046    }
047    
048    /** Creates a new instance of DeleteForumMessageAttachmentDescriptionCommand */
049    public DeleteForumMessageAttachmentDescriptionCommand() {
050        super(null, FORM_FIELD_DEFINITIONS, false);
051    }
052    
053    @Override
054    protected BaseResult execute() {
055        var forumControl = Session.getModelController(ForumControl.class);
056        var forumMessageName = form.getForumMessageName();
057        var forumMessage = forumControl.getForumMessageByNameForUpdate(forumMessageName);
058
059        if(forumMessage != null) {
060            var forumMessageAttachmentSequence = Integer.valueOf(form.getForumMessageAttachmentSequence());
061            var forumMessageAttachment = forumControl.getForumMessageAttachmentBySequence(forumMessage, forumMessageAttachmentSequence);
062
063            if(forumMessageAttachment != null) {
064                var partyControl = Session.getModelController(PartyControl.class);
065                var languageIsoName = form.getLanguageIsoName();
066                var language = partyControl.getLanguageByIsoName(languageIsoName);
067
068                if(language != null) {
069                    var forumMessageAttachmentDescription = forumControl.getForumMessageAttachmentDescriptionForUpdate(forumMessageAttachment, language);
070
071                    if(forumMessageAttachmentDescription != null) {
072                        forumControl.deleteForumMessageAttachmentDescription(forumMessageAttachmentDescription, getPartyPK());
073                    } else {
074                        addExecutionError(ExecutionErrors.UnknownForumMessageAttachmentDescription.name(), forumMessageName,
075                                forumMessageAttachmentSequence.toString(), languageIsoName);
076                    }
077                } else {
078                    addExecutionError(ExecutionErrors.UnknownLanguageIsoName.name(), languageIsoName);
079                }
080            } else {
081                addExecutionError(ExecutionErrors.UnknownForumMessageAttachment.name(), forumMessageName, forumMessageAttachmentSequence.toString());
082            }
083        } else {
084            addExecutionError(ExecutionErrors.UnknownForumMessageName.name(), forumMessageName);
085        }
086
087        return null;
088    }
089    
090}