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.chain.server.logic;
018
019import com.echothree.model.control.chain.common.exception.UnknownChainInstanceNameException;
020import com.echothree.model.control.chain.server.control.ChainControl;
021import com.echothree.model.control.sequence.common.SequenceTypes;
022import com.echothree.model.control.sequence.server.logic.SequenceGeneratorLogic;
023import com.echothree.model.data.chain.server.entity.Chain;
024import com.echothree.model.data.chain.server.entity.ChainEntityRoleType;
025import com.echothree.model.data.chain.server.entity.ChainInstance;
026import com.echothree.model.data.chain.server.entity.ChainType;
027import com.echothree.model.data.core.server.entity.EntityInstance;
028import com.echothree.model.data.party.server.entity.Party;
029import com.echothree.util.common.message.ExecutionErrors;
030import com.echothree.util.common.persistence.BasePK;
031import com.echothree.util.server.control.BaseLogic;
032import com.echothree.util.server.message.ExecutionErrorAccumulator;
033import java.util.HashSet;
034import java.util.Set;
035import javax.enterprise.context.ApplicationScoped;
036import javax.inject.Inject;
037
038@ApplicationScoped
039public class ChainInstanceLogic
040        extends BaseLogic {
041
042    @Inject
043    protected ChainControl chainControl;
044
045    @Inject
046    protected ChainLogic chainLogic;
047
048    @Inject
049    protected ChainTypeLogic chainTypeLogic;
050
051    protected ChainInstanceLogic() {
052        super();
053    }
054
055    public ChainInstance createChainInstance(final ExecutionErrorAccumulator eea, final Chain chain, final BasePK createdBy) {
056        var defaultChainActionSet = chainControl.getDefaultChainActionSet(chain);
057        ChainInstance chainInstance = null;
058
059        // The lack of a defaultChainActionSet is not a reportable error - it just silently avoids creating a Chain Instance.
060        if(defaultChainActionSet != null) {
061            var sequence = chain.getLastDetail().getChainInstanceSequence();
062
063            if(sequence == null) {
064                sequence = SequenceGeneratorLogic.getInstance().getDefaultSequence(eea, SequenceTypes.CHAIN_INSTANCE.name());
065            }
066
067            if(!hasExecutionErrors(eea)) {
068                chainInstance = chainControl.createChainInstance(SequenceGeneratorLogic.getInstance().getNextSequenceValue(sequence), defaultChainActionSet, createdBy);
069            }
070        }
071
072        return chainInstance;
073    }
074
075    public ChainInstance createChainInstance(final ExecutionErrorAccumulator eea, final ChainType chainType, final Party party, final BasePK createdBy) {
076        var chain = chainLogic.getChain(eea, chainType, party);
077        ChainInstance chainInstance = null;
078
079        if(chain != null) {
080            chainInstance = createChainInstance(eea, chain, createdBy);
081        }
082
083        return chainInstance;
084    }
085
086    public ChainInstance createChainInstance(final ExecutionErrorAccumulator eea, final String chainKindName, final String chainTypeName, final Party party,
087            final BasePK createdBy) {
088        var chainType = chainTypeLogic.getChainTypeByName(eea, chainKindName, chainTypeName);
089        ChainInstance chainInstance = null;
090
091        if(!hasExecutionErrors(eea)) {
092            chainInstance = createChainInstance(eea, chainType, party, createdBy);
093        }
094
095        return chainInstance;
096    }
097
098    public ChainInstance getChainInstanceByName(final ExecutionErrorAccumulator eea, final String chainInstanceName) {
099        var chainInstance = chainControl.getChainInstanceByName(chainInstanceName);
100
101        if(chainInstance == null) {
102            handleExecutionError(UnknownChainInstanceNameException.class, eea, ExecutionErrors.UnknownChainInstanceName.name(), chainInstanceName);
103        }
104
105        return chainInstance;
106    }
107
108    public void deleteChainInstanceByChainEntityRoleTypeAndEntityInstance(final ChainEntityRoleType chainEntityRoleType, final EntityInstance entityInstance,
109            final BasePK deletedBy) {
110        var chainInstanceEntityRoles = chainControl.getChainInstanceEntityRoles(chainEntityRoleType, entityInstance);
111        Set<ChainInstance> chainInstances = new HashSet<>();
112
113        chainInstanceEntityRoles.forEach((chainInstanceEntityRole) -> {
114            chainInstances.add(chainInstanceEntityRole.getChainInstanceForUpdate());
115        });
116
117        chainControl.deleteChainInstances(chainInstances, deletedBy);
118    }
119
120}