/*
    * Licensed to the Apache Software Foundation (ASF) under one
    * or more contributor license agreements.  See the NOTICE file
    * distributed with this work for additional information
    * regarding copyright ownership.  The ASF licenses this file
    * to you under the Apache License, Version 2.0 (the
    * "License"); you may not use this file except in compliance
    * with the License.  You may obtain a copy of the License at
    *
   *   http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing,
   * software distributed under the License is distributed on an
   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
   * KIND, either express or implied.  See the License for the
   * specific language governing permissions and limitations
   * under the License.
   */
  package org.apache.syncope.core.persistence.jpa.entity.task;
  
  import java.util.ArrayList;
  import java.util.List;
  import java.util.Optional;
  import javax.persistence.CascadeType;
  import javax.persistence.Entity;
  import javax.persistence.EnumType;
  import javax.persistence.Enumerated;
  import javax.persistence.FetchType;
  import javax.persistence.JoinColumn;
  import javax.persistence.JoinTable;
  import javax.persistence.ManyToMany;
  import javax.persistence.ManyToOne;
  import javax.persistence.OneToMany;
  import javax.persistence.OneToOne;
  import javax.persistence.Table;
  import javax.persistence.UniqueConstraint;
  import javax.validation.constraints.NotNull;
  import org.apache.syncope.common.lib.types.IdMImplementationType;
  import org.apache.syncope.common.lib.types.PullMode;
  import org.apache.syncope.core.persistence.api.entity.Implementation;
  import org.apache.syncope.core.persistence.api.entity.Realm;
  import org.apache.syncope.core.persistence.api.entity.task.AnyTemplatePullTask;
  import org.apache.syncope.core.persistence.api.entity.task.PullTask;
  import org.apache.syncope.core.persistence.api.entity.task.SchedTask;
  import org.apache.syncope.core.persistence.api.entity.task.TaskExec;
  import org.apache.syncope.core.persistence.jpa.entity.JPAImplementation;
  import org.apache.syncope.core.persistence.jpa.entity.JPARealm;
  
  @Entity
  @Table(name = JPAPullTask.TABLE)
  public class JPAPullTask extends AbstractProvisioningTask<PullTask> implements PullTask {
  
      private static final long serialVersionUID = -4141057723006682563L;
  
      public static final String TABLE = "PullTask";
  
      @Enumerated(EnumType.STRING)
      @NotNull
      private PullMode pullMode;
  
      @OneToOne
      private JPAImplementation reconFilterBuilder;
  
      @ManyToOne(fetch = FetchType.EAGER, optional = false)
      private JPARealm destinationRealm;
  
      @ManyToMany(fetch = FetchType.EAGER)
      @JoinTable(name = "PullTaskAction",
              joinColumns =
              @JoinColumn(name = "task_id"),
              inverseJoinColumns =
              @JoinColumn(name = "implementation_id"),
              uniqueConstraints =
              @UniqueConstraint(columnNames = { "task_id", "implementation_id" }))
      private List<JPAImplementation> actions = new ArrayList<>();
  
      @OneToMany(cascade = CascadeType.ALL, orphanRemoval = true, fetch = FetchType.EAGER, mappedBy = "pullTask")
      private List<JPAAnyTemplatePullTask> templates = new ArrayList<>();
  
      @OneToMany(targetEntity = JPAPullTaskExec.class,
              cascade = CascadeType.ALL, orphanRemoval = true, mappedBy = "task")
      private List<TaskExec<SchedTask>> executions = new ArrayList<>();
  
      @NotNull
      private Boolean remediation = false;
  
      @Override
      public PullMode getPullMode() {
          return pullMode;
      }
  
      @Override
      public void setPullMode(final PullMode pullMode) {
          this.pullMode = pullMode;
      }
  
      @Override
      public Implementation getReconFilterBuilder() {
          return reconFilterBuilder;
     }
 
     @Override
     public void setReconFilterBuilder(final Implementation reconFilterBuilder) {
         checkType(reconFilterBuilder, JPAImplementation.class);
         checkImplementationType(reconFilterBuilder, IdMImplementationType.RECON_FILTER_BUILDER);
         this.reconFilterBuilder = (JPAImplementation) reconFilterBuilder;
     }
 
     @Override
     public Realm getDestinationRealm() {
         return destinationRealm;
     }
 
     @Override
     public void setDestinationRealm(final Realm destinationRealm) {
         checkType(destinationRealm, JPARealm.class);
         this.destinationRealm = (JPARealm) destinationRealm;
     }
 
     @Override
     public boolean add(final Implementation action) {
         checkType(action, JPAImplementation.class);
         checkImplementationType(action, IdMImplementationType.PULL_ACTIONS);
         return actions.contains((JPAImplementation) action) || actions.add((JPAImplementation) action);
     }
 
     @Override
     public List<? extends Implementation> getActions() {
         return actions;
     }
 
     @Override
     public boolean add(final AnyTemplatePullTask template) {
         checkType(template, JPAAnyTemplatePullTask.class);
         return this.templates.add((JPAAnyTemplatePullTask) template);
     }
 
     @Override
     public Optional<? extends AnyTemplatePullTask> getTemplate(final String anyType) {
         return templates.stream().
                 filter(template -> anyType != null && anyType.equals(template.getAnyType().getKey())).
                 findFirst();
     }
 
     @Override
     public List<? extends AnyTemplatePullTask> getTemplates() {
         return templates;
     }
 
     @Override
     public void setRemediation(final boolean remediation) {
         this.remediation = remediation;
     }
 
     @Override
     public boolean isRemediation() {
         return concurrentSettings != null ? true : remediation;
     }
 
     @Override
     protected Class<? extends TaskExec<SchedTask>> executionClass() {
         return JPAPullTaskExec.class;
     }
 
     @Override
     protected List<TaskExec<SchedTask>> executions() {
         return executions;
     }
 }