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.CreateForumMessageAttachmentForm;
020import com.echothree.model.control.core.common.EntityAttributeTypes;
021import com.echothree.model.control.core.server.control.MimeTypeControl;
022import com.echothree.model.control.forum.server.control.ForumControl;
023import com.echothree.model.data.forum.server.entity.ForumMessageAttachment;
024import com.echothree.model.data.user.common.pk.UserVisitPK;
025import com.echothree.util.common.command.BaseResult;
026import com.echothree.util.common.message.ExecutionErrors;
027import com.echothree.util.common.validation.FieldDefinition;
028import com.echothree.util.common.validation.FieldType;
029import com.echothree.util.server.control.BaseSimpleCommand;
030import com.echothree.util.server.persistence.Session;
031import java.util.List;
032import javax.enterprise.context.Dependent;
033
034@Dependent
035public class CreateForumMessageAttachmentCommand
036        extends BaseSimpleCommand<CreateForumMessageAttachmentForm> {
037    
038    private final static List<FieldDefinition> FORM_FIELD_DEFINITIONS;
039    
040    static {
041        FORM_FIELD_DEFINITIONS = List.of(
042                new FieldDefinition("ForumMessageName", FieldType.ENTITY_NAME, true, null, null),
043                new FieldDefinition("ForumMessageAttachmentSequence", FieldType.UNSIGNED_INTEGER, false, null, null),
044                new FieldDefinition("MimeTypeName", FieldType.MIME_TYPE, true, null, null),
045                new FieldDefinition("Clob", FieldType.STRING, false, 1L, null),
046                new FieldDefinition("String", FieldType.STRING, false, 1L, 512L)
047                );
048    }
049    
050    /** Creates a new instance of CreateForumMessageAttachmentCommand */
051    public CreateForumMessageAttachmentCommand() {
052        super(null, FORM_FIELD_DEFINITIONS, false);
053    }
054    
055    @Override
056    protected BaseResult execute() {
057        var forumControl = Session.getModelController(ForumControl.class);
058        var forumMessageName = form.getForumMessageName();
059        var forumMessage = forumControl.getForumMessageByNameForUpdate(forumMessageName);
060
061        if(forumMessage != null) {
062            var mimeTypeControl = Session.getModelController(MimeTypeControl.class);
063            var mimeTypeName = form.getMimeTypeName();
064            var mimeType = mimeTypeControl.getMimeTypeByName(mimeTypeName);
065
066            if(mimeType != null) {
067                var entityAttributeTypeName = mimeType.getLastDetail().getEntityAttributeType().getEntityAttributeTypeName();
068                var blob = form.getBlob();
069                var clob = form.getClob();
070
071                if(entityAttributeTypeName.equals(EntityAttributeTypes.BLOB.name()) && blob == null) {
072                    addExecutionError(ExecutionErrors.MissingBlob.name());
073                } else {
074                    if(entityAttributeTypeName.equals(EntityAttributeTypes.CLOB.name()) && clob == null) {
075                        addExecutionError(ExecutionErrors.MissingClob.name());
076                    }
077                }
078
079                if(!hasExecutionErrors()) {
080                    var partyPK = getPartyPK();
081                    var strForumMessageAttachmentSequence = form.getForumMessageAttachmentSequence();
082                    var forumMessageAttachmentSequence = strForumMessageAttachmentSequence == null ? null : Integer.valueOf(strForumMessageAttachmentSequence);
083                    ForumMessageAttachment forumMessageAttachment;
084                    var forumMessageStatus = forumControl.getOrCreateForumMessageStatusForUpdate(forumMessage);
085
086                    if(forumMessageAttachmentSequence == null) {
087                        forumMessageAttachmentSequence = forumMessageStatus.getForumMessageAttachmentSequence() + 1;
088                        forumMessageStatus.setForumMessageAttachmentSequence(forumMessageAttachmentSequence);
089                    } else {
090                        forumMessageAttachment = forumControl.getForumMessageAttachmentBySequence(forumMessage, forumMessageAttachmentSequence);
091
092                        if(forumMessageAttachment == null) {
093                            // If the forumMessageAttachmentSequence is > the last one that was recorded in the OrderStatus, jump the
094                            // one in OrderStatus forward - it should always record the greatest forumMessageAttachmentSequence used.
095                            if(forumMessageAttachmentSequence > forumMessageStatus.getForumMessageAttachmentSequence()) {
096                                forumMessageStatus.setForumMessageAttachmentSequence(forumMessageAttachmentSequence);
097                            }
098                        } else {
099                            addExecutionError(ExecutionErrors.DuplicateForumMessageAttachmentSequence.name(), forumMessageName, forumMessageAttachmentSequence.toString());
100                        }
101                    }
102
103                    forumMessageAttachment = forumControl.createForumMessageAttachment(forumMessage, forumMessageAttachmentSequence, mimeType, partyPK);
104
105                    if(entityAttributeTypeName.equals(EntityAttributeTypes.BLOB.name())) {
106                        forumControl.createForumMessageBlobAttachment(forumMessageAttachment, blob, partyPK);
107                    } else {
108                        if(entityAttributeTypeName.equals(EntityAttributeTypes.CLOB.name())) {
109                            forumControl.createForumMessageClobAttachment(forumMessageAttachment, clob, partyPK);
110                        }
111                    }
112                }
113            } else {
114                addExecutionError(ExecutionErrors.UnknownMimeTypeName.name(), mimeTypeName);
115            }
116        } else {
117            addExecutionError(ExecutionErrors.UnknownForumMessageName.name(), forumMessageName);
118        }
119        
120        return null;
121    }
122    
123}