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.model.control.vendor.server.logic;
018
019import com.echothree.control.user.vendor.common.spec.VendorItemUniversalSpec;
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.server.logic.EntityInstanceLogic;
024import com.echothree.model.control.vendor.common.exception.UnknownVendorItemNameException;
025import com.echothree.model.control.vendor.server.control.VendorControl;
026import com.echothree.model.data.vendor.server.entity.VendorItem;
027import com.echothree.util.common.message.ExecutionErrors;
028import com.echothree.util.server.control.BaseLogic;
029import com.echothree.util.server.message.ExecutionErrorAccumulator;
030import com.echothree.util.server.persistence.EntityPermission;
031import com.echothree.util.server.persistence.Session;
032import com.echothree.util.server.validation.ParameterUtils;
033import javax.enterprise.context.ApplicationScoped;
034import javax.enterprise.inject.spi.CDI;
035
036@ApplicationScoped
037public class VendorItemLogic
038        extends BaseLogic {
039
040    protected VendorItemLogic() {
041        super();
042    }
043
044    public static VendorItemLogic getInstance() {
045        return CDI.current().select(VendorItemLogic.class).get();
046    }
047
048    public VendorItem getVendorItemByUniversalSpec(final ExecutionErrorAccumulator eea, final VendorItemUniversalSpec universalSpec,
049            final EntityPermission entityPermission) {
050        var vendorControl = Session.getModelController(VendorControl.class);
051        var vendorName = universalSpec.getVendorName();
052        var partyName = universalSpec.getPartyName();
053        var nameParameterCount = ParameterUtils.getInstance().countNonNullParameters(vendorName, partyName);
054        var possibleEntitySpecs = EntityInstanceLogic.getInstance().countPossibleEntitySpecs(universalSpec);
055        VendorItem vendorItem = null;
056
057        if(nameParameterCount == 1 && possibleEntitySpecs == 0) {
058            var vendorItemName = universalSpec.getVendorItemName();
059
060            if(vendorItemName != null) {
061                var vendor = VendorLogic.getInstance().getVendorByName(eea, vendorName, partyName, null);
062                var vendorParty = vendor.getParty();
063
064                vendorItem = vendorControl.getVendorItemByVendorPartyAndVendorItemName(vendorParty, vendorItemName, entityPermission);
065
066                if(vendorItem == null) {
067                    handleExecutionError(UnknownVendorItemNameException.class, eea, ExecutionErrors.UnknownVendorItemName.name(),
068                            vendor.getVendorName(), vendorItemName);
069
070                }
071            } else {
072                handleExecutionError(InvalidParameterCountException.class, eea, ExecutionErrors.InvalidParameterCount.name());
073            }
074        } else if(nameParameterCount == 0 && possibleEntitySpecs == 1) {
075            var entityInstance = EntityInstanceLogic.getInstance().getEntityInstance(eea, universalSpec,
076                    ComponentVendors.ECHO_THREE.name(), EntityTypes.WorkflowStep.name());
077
078            if(!eea.hasExecutionErrors()) {
079                vendorItem = vendorControl.getVendorItemByEntityInstance(entityInstance, entityPermission);
080            }
081        } else {
082            handleExecutionError(InvalidParameterCountException.class, eea, ExecutionErrors.InvalidParameterCount.name());
083        }
084
085        return vendorItem;
086    }
087
088    public VendorItem getVendorItemByUniversalSpec(final ExecutionErrorAccumulator eea, final VendorItemUniversalSpec universalSpec) {
089        return getVendorItemByUniversalSpec(eea, universalSpec, EntityPermission.READ_ONLY);
090    }
091
092    public VendorItem getVendorItemByUniversalSpecForUpdate(final ExecutionErrorAccumulator eea, final VendorItemUniversalSpec universalSpec) {
093        return getVendorItemByUniversalSpec(eea, universalSpec, EntityPermission.READ_WRITE);
094    }
095
096}