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.letter.server.command;
018
019import com.echothree.control.user.letter.common.form.GetQueuedLetterForm;
020import com.echothree.control.user.letter.common.result.LetterResultFactory;
021import com.echothree.model.control.chain.server.control.ChainControl;
022import com.echothree.model.control.letter.server.control.LetterControl;
023import com.echothree.model.control.party.common.PartyTypes;
024import com.echothree.model.control.security.common.SecurityRoleGroups;
025import com.echothree.model.control.security.common.SecurityRoles;
026import com.echothree.model.data.user.common.pk.UserVisitPK;
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.common.command.BaseResult;
031import com.echothree.util.server.control.BaseSimpleCommand;
032import com.echothree.util.server.control.CommandSecurityDefinition;
033import com.echothree.util.server.control.PartyTypeDefinition;
034import com.echothree.util.server.control.SecurityRoleDefinition;
035import com.echothree.util.server.persistence.Session;
036import java.util.Arrays;
037import java.util.Collections;
038import java.util.List;
039import javax.enterprise.context.RequestScoped;
040
041@RequestScoped
042public class GetQueuedLetterCommand
043        extends BaseSimpleCommand<GetQueuedLetterForm> {
044    
045    private final static CommandSecurityDefinition COMMAND_SECURITY_DEFINITION;
046    private final static List<FieldDefinition> FORM_FIELD_DEFINITIONS;
047    
048    static {
049        COMMAND_SECURITY_DEFINITION = new CommandSecurityDefinition(Collections.unmodifiableList(Arrays.asList(
050                new PartyTypeDefinition(PartyTypes.UTILITY.name(), null),
051                new PartyTypeDefinition(PartyTypes.EMPLOYEE.name(), Collections.unmodifiableList(Arrays.asList(
052                        new SecurityRoleDefinition(SecurityRoleGroups.QueuedLetter.name(), SecurityRoles.Review.name())
053                        )))
054                )));
055
056        FORM_FIELD_DEFINITIONS = Collections.unmodifiableList(Arrays.asList(
057                new FieldDefinition("ChainInstanceName", FieldType.ENTITY_NAME, true, null, null),
058                new FieldDefinition("QueuedLetterSequence", FieldType.UNSIGNED_INTEGER, true, null, null)
059                ));
060    }
061    
062    /** Creates a new instance of GetQueuedLetterCommand */
063    public GetQueuedLetterCommand() {
064        super(COMMAND_SECURITY_DEFINITION, FORM_FIELD_DEFINITIONS, true);
065    }
066    
067    @Override
068    protected BaseResult execute() {
069        var chainControl = Session.getModelController(ChainControl.class);
070        var result = LetterResultFactory.getGetQueuedLetterResult();
071        var chainInstanceName = form.getChainInstanceName();
072        var chainInstance = chainControl.getChainInstanceByName(chainInstanceName);
073        
074        if(chainInstance != null) {
075            var letterControl = Session.getModelController(LetterControl.class);
076            var strQueuedLetterSequence = form.getQueuedLetterSequence();
077            var queuedLetterSequence = Integer.valueOf(strQueuedLetterSequence);
078            var queuedLetter = letterControl.getQueuedLetter(chainInstance, queuedLetterSequence);
079
080            if(queuedLetter != null) {
081                result.setQueuedLetter(letterControl.getQueuedLetterTransfer(getUserVisit(), queuedLetter));
082            } else {
083                addExecutionError(ExecutionErrors.UnknownQueuedLetter.name(), chainInstanceName, strQueuedLetterSequence);
084            }
085        } else {
086            addExecutionError(ExecutionErrors.UnknownChainInstanceName.name(), chainInstanceName);
087        }
088        
089        return result;
090    }
091    
092}