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.GetForumForumThreadsForm;
020import com.echothree.control.user.forum.common.result.ForumResultFactory;
021import com.echothree.model.control.forum.server.control.ForumControl;
022import com.echothree.model.data.forum.server.entity.Forum;
023import com.echothree.model.data.forum.server.entity.ForumForumThread;
024import com.echothree.model.data.forum.server.entity.ForumThread;
025import com.echothree.model.data.forum.server.factory.ForumForumThreadFactory;
026import com.echothree.util.common.command.BaseResult;
027import com.echothree.util.common.message.ExecutionErrors;
028import com.echothree.util.common.validation.FieldDefinition;
029import com.echothree.util.common.validation.FieldType;
030import com.echothree.util.server.control.BasePaginatedMultipleEntitiesCommand;
031import java.util.Collection;
032import java.util.List;
033import javax.enterprise.context.Dependent;
034import javax.inject.Inject;
035
036@Dependent
037public class GetForumForumThreadsCommand
038        extends BasePaginatedMultipleEntitiesCommand<ForumForumThread, GetForumForumThreadsForm> {
039    
040    private final static List<FieldDefinition> FORM_FIELD_DEFINITIONS;
041    
042    static {
043        FORM_FIELD_DEFINITIONS = List.of(
044                new FieldDefinition("ForumName", FieldType.ENTITY_NAME, false, null, null),
045                new FieldDefinition("ForumThreadName", FieldType.ENTITY_NAME, false, null, null)
046        );
047    }
048
049    @Inject
050    protected ForumControl forumControl;
051
052
053    
054    private Forum forum;
055    private ForumThread forumThread;
056    
057    /** Creates a new instance of GetForumForumThreadsCommand */
058    public GetForumForumThreadsCommand() {
059        super(null, FORM_FIELD_DEFINITIONS, true);
060    }
061    
062    @Override
063    protected void handleForm() {
064        var forumName = form.getForumName();
065        var forumThreadName = form.getForumThreadName();
066        var parameterCount = (forumName != null? 1: 0) + (forumThreadName != null? 1: 0);
067        
068        if(parameterCount == 1) {
069            if(forumName != null) {
070                forum = forumControl.getForumByName(forumName);
071                
072                if(forum == null) {
073                    addExecutionError(ExecutionErrors.UnknownForumName.name(), forumName);
074                }
075            } else {
076                forumThread = forumControl.getForumThreadByName(forumThreadName);
077                
078                if(forumThread == null) {
079                    addExecutionError(ExecutionErrors.UnknownForumThreadName.name(), forumThreadName);
080                }
081            }
082        } else {
083            addExecutionError(ExecutionErrors.InvalidParameterCount.name());
084        }
085    }
086
087    @Override
088    protected Long getTotalEntities() {
089        Long total = null;
090
091        if(forum != null) {
092            total = forumControl.countForumForumThreadsByForum(forum);
093        } else if(forumThread != null) {
094            total = forumControl.countForumForumThreadsByForumThread(forumThread);
095        }
096
097        return total;
098    }
099
100    @Override
101    protected Collection<ForumForumThread> getEntities() {
102        Collection<ForumForumThread> forumForumThreads = null;
103
104        if(forum != null) {
105            forumForumThreads = forumControl.getForumForumThreadsByForum(forum);
106        } else if(forumThread != null) {
107            forumForumThreads = forumControl.getForumForumThreadsByForumThread(forumThread);
108        }
109
110        return forumForumThreads;
111    }
112
113    @Override
114    protected BaseResult getResult(Collection<ForumForumThread> entities) {
115        var result = ForumResultFactory.getGetForumForumThreadsResult();
116
117        if(entities != null) {
118            var userVisit = getUserVisit();
119
120            if(forum != null) {
121                result.setForum(forumControl.getForumTransfer(userVisit, forum));
122            } else if(forumThread != null) {
123                result.setForumThread(forumControl.getForumThreadTransfer(userVisit, forumThread));
124            }
125
126            if(session.hasLimit(ForumForumThreadFactory.class)) {
127                result.setForumForumThreadCount(getTotalEntities());
128            }
129
130            result.setForumForumThreads(forumControl.getForumForumThreadTransfers(userVisit, entities));
131        }
132
133        return result;
134    }
135    
136}