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.subscription.server.logic;
018
019import com.echothree.control.user.subscription.common.spec.SubscriptionUniversalSpec;
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.subscription.common.exception.UnknownSubscriptionNameException;
025import com.echothree.model.control.subscription.server.control.SubscriptionControl;
026import com.echothree.model.data.party.server.entity.Party;
027import com.echothree.model.data.subscription.server.entity.Subscription;
028import com.echothree.model.data.subscription.server.entity.SubscriptionType;
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 com.echothree.util.server.persistence.EntityPermission;
034import com.echothree.util.server.persistence.Session;
035import javax.enterprise.context.ApplicationScoped;
036import javax.enterprise.inject.spi.CDI;
037import javax.inject.Inject;
038
039@ApplicationScoped
040public class SubscriptionLogic
041        extends BaseLogic {
042
043    @Inject
044    SubscriptionControl subscriptionControl;
045
046    @Inject
047    EntityInstanceLogic entityInstanceLogic;
048
049    @Inject
050    SubscriptionChainLogic subscriptionChainLogic;
051
052    protected SubscriptionLogic() {
053        super();
054    }
055
056    public static SubscriptionLogic getInstance() {
057        return CDI.current().select(SubscriptionLogic.class).get();
058    }
059
060    public Subscription createSubscription(final ExecutionErrorAccumulator eea, final Session session, final SubscriptionType subscriptionType, final Party party,
061            final Long endTime, final BasePK createdBy) {
062        var subscription = subscriptionControl.createSubscription(subscriptionType, party, session.getStartTime(), endTime, createdBy);
063
064        subscriptionChainLogic.createSubscriptionInitialChainInstance(eea, subscription, createdBy);
065
066        return subscription;
067    }
068
069    public Subscription getSubscriptionByName(final ExecutionErrorAccumulator eea, final String subscriptionName,
070            final EntityPermission entityPermission) {
071        var subscription = subscriptionControl.getSubscriptionByName(subscriptionName, entityPermission);
072
073        if(subscription == null) {
074            handleExecutionError(UnknownSubscriptionNameException.class, eea, ExecutionErrors.UnknownSubscriptionName.name(), subscriptionName);
075        }
076
077        return subscription;
078    }
079
080    public Subscription getSubscriptionByName(final ExecutionErrorAccumulator eea, final String subscriptionName) {
081        return getSubscriptionByName(eea, subscriptionName, EntityPermission.READ_ONLY);
082    }
083
084    public Subscription getSubscriptionByNameForUpdate(final ExecutionErrorAccumulator eea, final String subscriptionName) {
085        return getSubscriptionByName(eea, subscriptionName, EntityPermission.READ_WRITE);
086    }
087
088    public Subscription getSubscriptionByUniversalSpec(final ExecutionErrorAccumulator eea,
089            final SubscriptionUniversalSpec universalSpec, final EntityPermission entityPermission) {
090        Subscription subscription = null;
091        var subscriptionName = universalSpec.getSubscriptionName();
092        var parameterCount = (subscriptionName == null ? 0 : 1) + entityInstanceLogic.countPossibleEntitySpecs(universalSpec);
093
094        switch(parameterCount) {
095            case 1 -> {
096                if(subscriptionName == null) {
097                    var entityInstance = entityInstanceLogic.getEntityInstance(eea, universalSpec,
098                            ComponentVendors.ECHO_THREE.name(), EntityTypes.Subscription.name());
099
100                    if(eea == null || !eea.hasExecutionErrors()) {
101                        subscription = subscriptionControl.getSubscriptionByEntityInstance(entityInstance, entityPermission);
102                    }
103                } else {
104                    subscription = getSubscriptionByName(eea, subscriptionName, entityPermission);
105                }
106            }
107            default ->
108                    handleExecutionError(InvalidParameterCountException.class, eea, ExecutionErrors.InvalidParameterCount.name());
109        }
110
111        return subscription;
112    }
113
114    public Subscription getSubscriptionByUniversalSpec(final ExecutionErrorAccumulator eea,
115            final SubscriptionUniversalSpec universalSpec) {
116        return getSubscriptionByUniversalSpec(eea, universalSpec, EntityPermission.READ_ONLY);
117    }
118
119    public Subscription getSubscriptionByUniversalSpecForUpdate(final ExecutionErrorAccumulator eea,
120            final SubscriptionUniversalSpec universalSpec) {
121        return getSubscriptionByUniversalSpec(eea, universalSpec, EntityPermission.READ_WRITE);
122    }
123
124}