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.model.control.core.server.logic;
018
019import com.echothree.control.user.core.common.spec.LinkCardinalityUniversalSpec;
020import com.echothree.model.control.core.common.ComponentVendors;
021import com.echothree.model.control.core.common.EntityTypes;
022import com.echothree.model.control.core.common.exception.CannotDeleteLinkCardinalityInUseException;
023import com.echothree.model.control.core.common.exception.DuplicateLinkCardinalityNameException;
024import com.echothree.model.control.core.common.exception.InvalidParameterCountException;
025import com.echothree.model.control.core.common.exception.UnknownDefaultLinkCardinalityException;
026import com.echothree.model.control.core.common.exception.UnknownLinkCardinalityNameException;
027import com.echothree.model.control.core.server.control.LinkCardinalityControl;
028import com.echothree.model.control.core.server.control.LinkTypeControl;
029import com.echothree.model.data.core.server.entity.LinkCardinality;
030import com.echothree.model.data.core.server.value.LinkCardinalityDetailValue;
031import com.echothree.model.data.party.server.entity.Language;
032import com.echothree.util.common.message.ExecutionErrors;
033import com.echothree.util.common.persistence.BasePK;
034import com.echothree.util.server.control.BaseLogic;
035import com.echothree.util.server.message.ExecutionErrorAccumulator;
036import com.echothree.util.server.persistence.EntityPermission;
037import javax.enterprise.context.ApplicationScoped;
038import javax.inject.Inject;
039
040@ApplicationScoped
041public class LinkCardinalityLogic
042        extends BaseLogic {
043
044    @Inject
045    LinkCardinalityControl linkCardinalityControl;
046
047    @Inject
048    LinkTypeControl linkTypeControl;
049
050    @Inject
051    EntityInstanceLogic entityInstanceLogic;
052
053    protected LinkCardinalityLogic() {
054        super();
055    }
056
057    public LinkCardinality createLinkCardinality(final ExecutionErrorAccumulator eea, final String linkCardinalityName,
058            final Boolean isDefault, final Integer sortOrder,
059            final Language language, final String description, final BasePK createdBy) {
060        var linkCardinality = linkCardinalityControl.getLinkCardinalityByName(linkCardinalityName);
061
062        if(linkCardinality == null) {
063            linkCardinality = linkCardinalityControl.createLinkCardinality(linkCardinalityName,
064                    isDefault, sortOrder, createdBy);
065
066            if(description != null) {
067                linkCardinalityControl.createLinkCardinalityDescription(linkCardinality, language, description, createdBy);
068            }
069        } else {
070            handleExecutionError(DuplicateLinkCardinalityNameException.class, eea, ExecutionErrors.DuplicateLinkCardinalityName.name(), linkCardinalityName);
071        }
072
073        return linkCardinality;
074    }
075
076    public LinkCardinality getLinkCardinalityByName(final ExecutionErrorAccumulator eea, final String linkCardinalityName,
077            final EntityPermission entityPermission) {
078        var linkCardinality = linkCardinalityControl.getLinkCardinalityByName(linkCardinalityName, entityPermission);
079
080        if(linkCardinality == null) {
081            handleExecutionError(UnknownLinkCardinalityNameException.class, eea, ExecutionErrors.UnknownLinkCardinalityName.name(), linkCardinalityName);
082        }
083
084        return linkCardinality;
085    }
086
087    public LinkCardinality getLinkCardinalityByName(final ExecutionErrorAccumulator eea, final String linkCardinalityName) {
088        return getLinkCardinalityByName(eea, linkCardinalityName, EntityPermission.READ_ONLY);
089    }
090
091    public LinkCardinality getLinkCardinalityByNameForUpdate(final ExecutionErrorAccumulator eea, final String linkCardinalityName) {
092        return getLinkCardinalityByName(eea, linkCardinalityName, EntityPermission.READ_WRITE);
093    }
094
095    public LinkCardinality getLinkCardinalityByUniversalSpec(final ExecutionErrorAccumulator eea,
096            final LinkCardinalityUniversalSpec linkCardinalityUniversalSpec, boolean allowDefault, final EntityPermission entityPermission) {
097        LinkCardinality linkCardinality = null;
098        var linkCardinalityName = linkCardinalityUniversalSpec.getLinkCardinalityName();
099        var parameterCount = (linkCardinalityName == null ? 0 : 1) + entityInstanceLogic.countPossibleEntitySpecs(linkCardinalityUniversalSpec);
100
101        switch(parameterCount) {
102            case 0 -> {
103                if(allowDefault) {
104                    linkCardinality = linkCardinalityControl.getDefaultLinkCardinality(entityPermission);
105
106                    if(linkCardinality == null) {
107                        handleExecutionError(UnknownDefaultLinkCardinalityException.class, eea, ExecutionErrors.UnknownDefaultLinkCardinality.name());
108                    }
109                } else {
110                    handleExecutionError(InvalidParameterCountException.class, eea, ExecutionErrors.InvalidParameterCount.name());
111                }
112            }
113            case 1 -> {
114                if(linkCardinalityName == null) {
115                    var entityInstance = entityInstanceLogic.getEntityInstance(eea, linkCardinalityUniversalSpec,
116                            ComponentVendors.ECHO_THREE.name(), EntityTypes.LinkCardinality.name());
117
118                    if(!hasExecutionErrors(eea)) {
119                        linkCardinality = linkCardinalityControl.getLinkCardinalityByEntityInstance(entityInstance, entityPermission);
120                    }
121                } else {
122                    linkCardinality = getLinkCardinalityByName(eea, linkCardinalityName, entityPermission);
123                }
124            }
125            default ->
126                    handleExecutionError(InvalidParameterCountException.class, eea, ExecutionErrors.InvalidParameterCount.name());
127        }
128
129        return linkCardinality;
130    }
131
132    public LinkCardinality getLinkCardinalityByUniversalSpec(final ExecutionErrorAccumulator eea,
133            final LinkCardinalityUniversalSpec linkCardinalityUniversalSpec, boolean allowDefault) {
134        return getLinkCardinalityByUniversalSpec(eea, linkCardinalityUniversalSpec, allowDefault, EntityPermission.READ_ONLY);
135    }
136
137    public LinkCardinality getLinkCardinalityByUniversalSpecForUpdate(final ExecutionErrorAccumulator eea,
138            final LinkCardinalityUniversalSpec linkCardinalityUniversalSpec, boolean allowDefault) {
139        return getLinkCardinalityByUniversalSpec(eea, linkCardinalityUniversalSpec, allowDefault, EntityPermission.READ_WRITE);
140    }
141
142    public void updateLinkCardinalityFromValue(final LinkCardinalityDetailValue linkCardinalityDetailValue,
143            final BasePK updatedBy) {
144        linkCardinalityControl.updateLinkCardinalityFromValue(linkCardinalityDetailValue, updatedBy);
145    }
146
147    public void deleteLinkCardinality(final ExecutionErrorAccumulator eea, final LinkCardinality linkCardinality,
148            final BasePK deletedBy) {
149        if(linkTypeControl.countLinkTypes(linkTypeControl.getLinkTypeFilter(null, null, null, linkCardinality, null, null)) != 0) {
150            handleExecutionError(CannotDeleteLinkCardinalityInUseException.class, eea, ExecutionErrors.CannotDeleteLinkCardinalityInUse.name(), linkCardinality.getLastDetail().getLinkCardinalityName());
151        } else {
152            linkCardinalityControl.deleteLinkCardinality(linkCardinality, deletedBy);
153        }
154    }
155
156}