/*
    * 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.logging.log4j.catalog.jpa.model;
  
  import org.apache.commons.lang3.builder.EqualsBuilder;
  import org.apache.commons.lang3.builder.HashCodeBuilder;
  
  import javax.persistence.CascadeType;
  import javax.persistence.CollectionTable;
  import javax.persistence.Column;
  import javax.persistence.ElementCollection;
  import javax.persistence.Entity;
  import javax.persistence.FetchType;
  import javax.persistence.GeneratedValue;
  import javax.persistence.GenerationType;
  import javax.persistence.Id;
  import javax.persistence.JoinColumn;
  import javax.persistence.OneToMany;
  import javax.persistence.Table;
  import javax.persistence.UniqueConstraint;
  import java.io.Serializable;
  import java.util.ArrayList;
  import java.util.HashSet;
  import java.util.List;
  import java.util.Set;
  
  @Entity
  @Table(name = "CATALOG_EVENT",
          uniqueConstraints = { @UniqueConstraint(columnNames = { "NAME" })})
  public class EventModel implements Serializable {
      private static final long serialVersionUID = 1512172827909901054L;
      @Id
      @GeneratedValue(strategy= GenerationType.IDENTITY)
      @Column(name = "ID", updatable = false, nullable = false)
      private Long id;
      @Column(name = "NAME")
      private String name;
      @Column(name = "DISPLAY_NAME")
      private String displayName;
      @Column(name = "DESCRIPTION")
      private String description;
      @Column(name = "CATALOG_ID")
      private String catalogId;
      @ElementCollection(fetch = FetchType.EAGER)
      @CollectionTable(name = "event_aliases", joinColumns = @JoinColumn(name = "event_id"))
      @Column(name = "alias")
      private Set<String> aliases;
      @OneToMany(fetch = FetchType.EAGER, mappedBy = "event", cascade = CascadeType.ALL, orphanRemoval = true)
      private Set<EventAttributeModel> attributes = new HashSet<>();
  
      public EventModel() {
          catalogId = "DEFAULT";
      }
  
      /**
       * Return the identifier for this event.
       * @return the identifier for this event.
       */
      public Long getId() {
          return id;
      }
  
      /**
       * Set the identifier for this event.
       * @param id the identifier for this event.
       */
      public void setId(Long id) {
          this.id = id;
      }
  
      /**
       * Returns the name for this event.
       * @return the name for this event.
       */
      public String getName() {
          return name;
      }
  
      /**
       * Set the name for this event.
       * @param name the name for this event.
       */
      public void setName(String name) {
          this.name = name;
      }
 
     /**
      * Returns the name to display for this event.
      * @return the display name for this event.
      */
     public String getDisplayName() {
         return displayName;
     }
 
     /**
      * Set the display name for this event.
      * @param name the name to display for this event.
      */
     public void setDisplayName(String name) {
         this.displayName = name;
     }
 
     /**
      * Return the description of the event.
      * @return the event description.
      */
     public String getDescription() {
         return description;
     }
 
     /**
      * Set the event description.
      * @param description The description of the event.
      */
     public void setDescription(String description) {
         this.description = description;
     }
 
     /**
      * Returns the List of alias Strings.
      * @return the List of alias Strings.
      */
     public Set<String> getAliases() {
         return aliases;
     }
 
     /**
      * Sets the List of alias Strings.
      * @param aliases the List of alias Strings.
      */
     public void setAliases(Set<String> aliases) {
         this.aliases = aliases;
     }
 
     /**
      * Get the Catalog Id this Event is associated with.
      * @return the catalog id or null.
      */
     public String getCatalogId() {
         return catalogId;
     }
 
     /**
      * Set the catalog id this Event is associated with.
      * @param catalogId The catalog id or null.
      */
     public void setCatalogId(String catalogId) {
         this.catalogId = catalogId;
     }
 
     /**
      * Returns the List of AttributeDto objects.
      * @return the List of Attributes.
      */
     public Set<EventAttributeModel> getAttributes() {
         return attributes;
     }
 
     public List<String> getAttributeNames() {
         List<String> names = new ArrayList<>(attributes.size());
         for (EventAttributeModel model : attributes) {
             names.add(model.getAttribute().getName());
         }
         return names;
     }
 
     public EventAttributeModel getAttribute(String name) {
         for (EventAttributeModel model : attributes) {
             if (name.equals(model.getAttribute().getName())) {
                 return model;
             }
         }
         return null;
     }
 
     public void addEventAttribute(EventAttributeModel attribute) {
         this.attributes.add(attribute);
     }
 
     /**
      * Sets the List of Atribute objects.
      * @param attributes The List of Attributes.
      */
     public void setAttributes(Set<EventAttributeModel> attributes) {
         this.attributes = attributes;
     }
 
     public int hashCode() {
         return new HashCodeBuilder().append(name).toHashCode();
     }
 
     public boolean equals(Object o) {
         if (this == o) return true;
         if (o == null) return false;
         if (!(o instanceof EventModel)) return false;
 
         EventModel other = (EventModel)o;
         return new EqualsBuilder().append(name, other.name).isEquals();
     }
 
     public String toString() {
         StringBuilder sb = new StringBuilder();
         sb.append("{\"id\" : \"").append(id).append("\"");
         sb.append(", \"name\" : \"").append(name).append("\", \"displayName\" : \"").append(displayName).append("\"");
         sb.append(", \"description\" : ").append(description).append("\", \"attributes\" : [");
         boolean first = true;
         for (EventAttributeModel attribute : attributes) {
             if (!first) {
                 sb.append(", ");
             } else {
                 first = false;
             }
             sb.append("{\"name\" : \"").append(attribute.getAttribute().getName()).append("\", \"required\" : ").append(attribute.isRequired()).append("}");
         }
         sb.append("]}");
         return sb.toString();
     }
 }