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.AppearanceUniversalSpec;
020import com.echothree.model.control.core.common.ComponentVendors;
021import com.echothree.model.control.core.common.EntityTypes;
022import com.echothree.model.control.core.common.exception.InvalidParameterCountException;
023import com.echothree.model.control.core.common.exception.UnknownAppearanceNameException;
024import com.echothree.model.control.core.server.control.AppearanceControl;
025import com.echothree.model.data.core.server.entity.Appearance;
026import com.echothree.util.common.message.ExecutionErrors;
027import com.echothree.util.server.control.BaseLogic;
028import com.echothree.util.server.message.ExecutionErrorAccumulator;
029import com.echothree.util.server.persistence.EntityPermission;
030import javax.enterprise.context.ApplicationScoped;
031import javax.inject.Inject;
032
033@ApplicationScoped
034public class AppearanceLogic
035        extends BaseLogic {
036
037    @Inject
038    protected AppearanceControl appearanceControl;
039
040    @Inject
041    EntityInstanceLogic entityInstanceLogic;
042
043    protected AppearanceLogic() {
044        super();
045    }
046
047    public Appearance getAppearanceByName(final ExecutionErrorAccumulator eea, final String appearanceName,
048            final EntityPermission entityPermission) {
049        var appearance = appearanceControl.getAppearanceByName(appearanceName, entityPermission);
050
051        if(appearance == null) {
052            handleExecutionError(UnknownAppearanceNameException.class, eea, ExecutionErrors.UnknownAppearanceName.name(), appearanceName);
053        }
054
055        return appearance;
056    }
057
058    public Appearance getAppearanceByName(final ExecutionErrorAccumulator eea, final String appearanceName) {
059        return getAppearanceByName(eea, appearanceName, EntityPermission.READ_ONLY);
060    }
061
062    public Appearance getAppearanceByNameForUpdate(final ExecutionErrorAccumulator eea, final String appearanceName) {
063        return getAppearanceByName(eea, appearanceName, EntityPermission.READ_WRITE);
064    }
065
066    public Appearance getAppearanceByUniversalSpec(final ExecutionErrorAccumulator eea,
067            final AppearanceUniversalSpec universalSpec, final EntityPermission entityPermission) {
068        Appearance appearance = null;
069        var appearanceName = universalSpec.getAppearanceName();
070        var parameterCount = (appearanceName == null ? 0 : 1) + entityInstanceLogic.countPossibleEntitySpecs(universalSpec);
071
072        switch(parameterCount) {
073            case 1 -> {
074                if(appearanceName == null) {
075                    var entityInstance = entityInstanceLogic.getEntityInstance(eea, universalSpec,
076                            ComponentVendors.ECHO_THREE.name(), EntityTypes.Appearance.name());
077
078                    if(eea == null || !eea.hasExecutionErrors()) {
079                        appearance = appearanceControl.getAppearanceByEntityInstance(entityInstance, entityPermission);
080                    }
081                } else {
082                    appearance = getAppearanceByName(eea, appearanceName, entityPermission);
083                }
084            }
085            default ->
086                    handleExecutionError(InvalidParameterCountException.class, eea, ExecutionErrors.InvalidParameterCount.name());
087        }
088
089        return appearance;
090    }
091
092    public Appearance getAppearanceByUniversalSpec(final ExecutionErrorAccumulator eea,
093            final AppearanceUniversalSpec universalSpec) {
094        return getAppearanceByUniversalSpec(eea, universalSpec, EntityPermission.READ_ONLY);
095    }
096
097    public Appearance getAppearanceByUniversalSpecForUpdate(final ExecutionErrorAccumulator eea,
098            final AppearanceUniversalSpec universalSpec) {
099        return getAppearanceByUniversalSpec(eea, universalSpec, EntityPermission.READ_WRITE);
100    }
101    
102}