package org.batfish.datamodel.routing_policy.expr;

import java.util.Collections;
import java.util.HashMap;
import java.util.Map;

import org.batfish.common.BatfishException;

import com.fasterxml.jackson.annotation.JsonCreator;
import com.fasterxml.jackson.annotation.JsonValue;

public enum RouteType {
   INTERAREA("interarea"),
   INTERNAL("internal"),
   LEVEL_1("level-1"),
   LEVEL_2("level-2"),
   LOCAL("local"),
   OSPF_EXTERNAL_TYPE_1("ospf-external-type-1"),
   OSPF_EXTERNAL_TYPE_2("ospf-external-type-2"),
   OSPF_INTER_AREA("ospf-inter-area"),
   OSPF_INTRA_AREA("ospf-intra-area"),
   OSPF_NSSA_TYPE_1("ospf-nssa-type-1"),
   OSPF_NSSA_TYPE_2("ospf-nssa-type-2"),
   TYPE_1("type-1"),
   TYPE_2("type-2");

   private final static Map<String, RouteType> _map = buildMap();

   private static synchronized Map<String, RouteType> buildMap() {
      Map<String, RouteType> map = new HashMap<>();
      for (RouteType value : RouteType.values()) {
         String name = value._name.toLowerCase();
         map.put(name, value);
      }
      return Collections.unmodifiableMap(map);
   }

   @JsonCreator
   public static RouteType fromName(String name) {
      RouteType instance = _map.get(name.toLowerCase());
      if (instance == null) {
         throw new BatfishException("No " + RouteType.class.getSimpleName()
               + " with name: \"" + name + "\"");
      }
      return instance;
   }

   private final String _name;

   private RouteType(String name) {
      _name = name;
   }

   @JsonValue
   public String routeTypeName() {
      return _name;
   }
}