package org.melati.admin;
   
   import java.lang.IllegalArgumentException;
   import java.util.HashMap;
   import java.util.Map;
   
   import org.melati.poem.PoemTypeFactory;
   
   
  /**
   * @author timp
   * @since 13 Nov 2012
   * see com.google.visualization.datasource.datatable.value.ValueType
   */
  public enum PoemGvisType {
    TROID(PoemTypeFactory.TROID.getCode()) {
      @Override
      public
      String gvisJsonTypeName() {
        return "number";
      }
  
      @Override
      public
      String jsonValue(Object value) { 
        if (value == null )
          return "null";
        else
          return "\"" + value.toString() + "\"";
      }
    },
    DELETED(PoemTypeFactory.DELETED.getCode()) {
      @Override
      public
      String gvisJsonTypeName() {
        return "boolean";
      }
      public String jsonValue(Object value) { 
        if (value == null )
          return "null";
        else
          return value.toString();
      }
    },
    TYPE(PoemTypeFactory.TYPE.getCode()) {
      @Override
      public
      String gvisJsonTypeName() {
        return "number";
      }
    },
    
    /* Base type factories. */
     BOOLEAN(PoemTypeFactory.BOOLEAN.getCode()) {
      @Override
      public
      String gvisJsonTypeName() {
        return "boolean";
      }
    },
     INTEGER(PoemTypeFactory.INTEGER.getCode()) {
      @Override
      public
      String gvisJsonTypeName() {
        return "number";
      }
  
      @Override
      public
      String jsonValue(Object value) { 
        if (value == null )
          return "null";
        else
          return value.toString();
      }
    },
     DOUBLE(PoemTypeFactory.DOUBLE.getCode()) {
      @Override
      public
      String gvisJsonTypeName() {
        return "number";
      }
      @Override
      public String jsonValue(Object value) { 
        if (value == null )
          return "null";
        else
          return value.toString();
      }
    },
     LONG(PoemTypeFactory.LONG.getCode()) {
      @Override
      public
      String gvisJsonTypeName() {
        return "number";
      }
      @Override
      public String jsonValue(Object value) { 
        if (value == null )
         return "null";
       else
         return value.toString();
     }
   },
    BIGDECIMAL(PoemTypeFactory.BIGDECIMAL.getCode()) {
     @Override
     public
     String gvisJsonTypeName() {
       return "number";
     }
     @Override
     public String jsonValue(Object value) { 
       if (value == null )
         return "null";
       else
         return value.toString();
     }
   },
    STRING(PoemTypeFactory.STRING.getCode()) {
     @Override
     public
     String gvisJsonTypeName() {
       return "string";
     }
   },
    PASSWORD(PoemTypeFactory.PASSWORD.getCode()) {
     @Override
     public
     String gvisJsonTypeName() {
       return "string";
     }
   },
    DATE(PoemTypeFactory.DATE.getCode()) {
     @Override
     public
     String gvisJsonTypeName() {
       return "date";
     }
   },
    TIMESTAMP(PoemTypeFactory.TIMESTAMP.getCode()) {
     @Override
     public
     String gvisJsonTypeName() {
       return "datetime";
     }
   },
    TIME(PoemTypeFactory.TIME.getCode()) {
     @Override
     public
     String gvisJsonTypeName() {
       return "timeofday";
     }
   },
    BINARY(PoemTypeFactory.BINARY.getCode()) {
     @Override
     public
     String gvisJsonTypeName() {
       throw new IllegalArgumentException("Binary poem type cannot be exported to google viualisation API.");
     }
   },
 
    /** Poem factories. */
    DISPLAYLEVEL(PoemTypeFactory.DISPLAYLEVEL.getCode()) {
     @Override
     public
     String gvisJsonTypeName() {
       return "number";
     }
   },
    SEARCHABILITY(PoemTypeFactory.SEARCHABILITY.getCode()) {
     @Override
     public
     String gvisJsonTypeName() {
       return "number";
     }
   },
    INTEGRITYFIX(PoemTypeFactory.INTEGRITYFIX.getCode()) {
     @Override
     public
     String gvisJsonTypeName() {
       return "number";
     }
   };
   
   final Integer poemType;
   PoemGvisType(Integer poemType) { 
     this.poemType = poemType;
   }
   
   public Integer getPoemType(){ 
     return poemType;
   }
   public PoemTypeFactory getPeomTypeFactory() { 
     return PoemTypeFactory.forCode(null, poemType);
   }
   
   public abstract String gvisJsonTypeName(); 
   
   public String jsonValue(Object value) { 
     if (value == null )
       return "null";
     else
       return "\"" + value.toString() + "\"";
   }
   
   public static PoemGvisType from(Integer poemType){ 
     return typeCodeToPoemGvisType.get(poemType);
   }
   private static Map<Integer, PoemGvisType> typeCodeToPoemGvisType;
   static {
     typeCodeToPoemGvisType = new HashMap<Integer,PoemGvisType>();
     for (PoemGvisType type : PoemGvisType.values()) {
       typeCodeToPoemGvisType.put(type.poemType, type);
     }
   }
 
 }