/**
    *    Copyright 2006-2015 the original author or authors.
    *
    *    Licensed 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.mybatis.generator.codegen.mybatis3;
  
  import static org.mybatis.generator.internal.util.StringUtility.escapeStringForJava;
  import static org.mybatis.generator.internal.util.StringUtility.stringHasValue;
  
  import org.mybatis.generator.api.IntrospectedColumn;
  
  /**
   * @author Jeff Butler
   * 
   */
  public class MyBatis3FormattingUtilities {
      /**
       * Utility class - no instances
       */
      private MyBatis3FormattingUtilities() {
          super();
      }
  
      public static String getParameterClause(
              IntrospectedColumn introspectedColumn) {
          return getParameterClause(introspectedColumn, null);
      }
  
      public static String getParameterClause(
              IntrospectedColumn introspectedColumn, String prefix) {
          StringBuilder sb = new StringBuilder();
  
          sb.append("#{"); //$NON-NLS-1$
          sb.append(introspectedColumn.getJavaProperty(prefix));
          sb.append(",jdbcType="); //$NON-NLS-1$
          sb.append(introspectedColumn.getJdbcTypeName());
  
          if (stringHasValue(introspectedColumn.getTypeHandler())) {
              sb.append(",typeHandler="); //$NON-NLS-1$
              sb.append(introspectedColumn.getTypeHandler());
          }
  
          sb.append('}');
  
          return sb.toString();
      }
  
      /**
       * The phrase to use in a select list. If there is a table alias, the value
       * will be "alias.columnName as alias_columnName"
       * 
       * @return the proper phrase
       */
      public static String getSelectListPhrase(
              IntrospectedColumn introspectedColumn) {
          if (stringHasValue(introspectedColumn.getTableAlias())) {
              StringBuilder sb = new StringBuilder();
  
              sb.append(getAliasedEscapedColumnName(introspectedColumn));
              sb.append(" as "); //$NON-NLS-1$
              if (introspectedColumn.isColumnNameDelimited()) {
                  sb.append(introspectedColumn.getContext()
                          .getBeginningDelimiter());
              }
              sb.append(introspectedColumn.getTableAlias());
              sb.append('_');
              sb.append(escapeStringForMyBatis3(introspectedColumn
                      .getActualColumnName()));
              if (introspectedColumn.isColumnNameDelimited()) {
                  sb.append(introspectedColumn.getContext().getEndingDelimiter());
              }
              return sb.toString();
          } else {
              return getEscapedColumnName(introspectedColumn);
          }
      }
  
      public static String getEscapedColumnName(
              IntrospectedColumn introspectedColumn) {
          StringBuilder sb = new StringBuilder();
          sb.append(escapeStringForMyBatis3(introspectedColumn
                  .getActualColumnName()));
  
          if (introspectedColumn.isColumnNameDelimited()) {
              sb.insert(0, introspectedColumn.getContext()
                      .getBeginningDelimiter());
              sb.append(introspectedColumn.getContext().getEndingDelimiter());
          }
 
         return sb.toString();
     }
 
     /**
      * Calculates the string to use in select phrases in SqlMaps.
      * 
      * @return the aliased escaped column name
      */
     public static String getAliasedEscapedColumnName(
             IntrospectedColumn introspectedColumn) {
         if (stringHasValue(introspectedColumn.getTableAlias())) {
             StringBuilder sb = new StringBuilder();
 
             sb.append(introspectedColumn.getTableAlias());
             sb.append('.');
             sb.append(getEscapedColumnName(introspectedColumn));
             return sb.toString();
         } else {
             return getEscapedColumnName(introspectedColumn);
         }
     }
 
     /**
      * The aliased column name for a select statement generated by the example
      * clauses. This is not appropriate for selects in SqlMaps because the
      * column is not escaped for MyBatis. If there is a table alias, the value
      * will be alias.columnName.
      * 
      * This method is used in the Example classes and the returned value will be
      * in a Java string. So we need to escape double quotes if they are the
      * delimiters.
      * 
      * @return the aliased column name
      */
     public static String getAliasedActualColumnName(
             IntrospectedColumn introspectedColumn) {
         StringBuilder sb = new StringBuilder();
         if (stringHasValue(introspectedColumn.getTableAlias())) {
             sb.append(introspectedColumn.getTableAlias());
             sb.append('.');
         }
 
         if (introspectedColumn.isColumnNameDelimited()) {
             sb.append(escapeStringForJava(introspectedColumn
                     .getContext().getBeginningDelimiter()));
         }
 
         sb.append(introspectedColumn.getActualColumnName());
 
         if (introspectedColumn.isColumnNameDelimited()) {
             sb.append(escapeStringForJava(introspectedColumn
                     .getContext().getEndingDelimiter()));
         }
 
         return sb.toString();
     }
 
     /**
      * The renamed column name for a select statement. If there is a table
      * alias, the value will be alias_columnName. This is appropriate for use in
      * a result map.
      * 
      * @return the renamed column name
      */
     public static String getRenamedColumnNameForResultMap(
             IntrospectedColumn introspectedColumn) {
         if (stringHasValue(introspectedColumn.getTableAlias())) {
             StringBuilder sb = new StringBuilder();
 
             sb.append(introspectedColumn.getTableAlias());
             sb.append('_');
             sb.append(introspectedColumn.getActualColumnName());
             return sb.toString();
         } else {
             return introspectedColumn.getActualColumnName();
         }
     }
 
     public static String escapeStringForMyBatis3(String s) {
         // nothing to do for MyBatis3 so far
         return s;
     }
 }