/*
    *    Copyright 2006-2023 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
    *
    *       https://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.xmlmapper.elements;
  
  import org.mybatis.generator.api.IntrospectedColumn;
  import org.mybatis.generator.api.dom.xml.Attribute;
  import org.mybatis.generator.api.dom.xml.TextElement;
  import org.mybatis.generator.api.dom.xml.XmlElement;
  import org.mybatis.generator.codegen.mybatis3.ListUtilities;
  import org.mybatis.generator.codegen.mybatis3.MyBatis3FormattingUtilities;
  
  public class UpdateByPrimaryKeySelectiveElementGenerator extends AbstractXmlElementGenerator {
  
      public UpdateByPrimaryKeySelectiveElementGenerator() {
          super();
      }
  
      @Override
      public void addElements(XmlElement parentElement) {
          XmlElement answer = new XmlElement("update"); //$NON-NLS-1$
  
          answer.addAttribute(new Attribute(
                  "id", introspectedTable.getUpdateByPrimaryKeySelectiveStatementId())); //$NON-NLS-1$
  
          String parameterType;
  
          if (introspectedTable.getRules().generateRecordWithBLOBsClass()) {
              parameterType = introspectedTable.getRecordWithBLOBsType();
          } else {
              parameterType = introspectedTable.getBaseRecordType();
          }
  
          answer.addAttribute(new Attribute("parameterType", parameterType)); //$NON-NLS-1$
  
          context.getCommentGenerator().addComment(answer);
  
          StringBuilder sb = new StringBuilder();
  
          sb.append("update "); //$NON-NLS-1$
          sb.append(introspectedTable.getFullyQualifiedTableNameAtRuntime());
          answer.addElement(new TextElement(sb.toString()));
  
          XmlElement dynamicElement = new XmlElement("set"); //$NON-NLS-1$
          answer.addElement(dynamicElement);
  
          for (IntrospectedColumn introspectedColumn :
                  ListUtilities.removeGeneratedAlwaysColumns(introspectedTable.getNonPrimaryKeyColumns())) {
              sb.setLength(0);
              sb.append(introspectedColumn.getJavaProperty());
              sb.append(" != null"); //$NON-NLS-1$
              XmlElement isNotNullElement = new XmlElement("if"); //$NON-NLS-1$
              isNotNullElement.addAttribute(new Attribute("test", sb.toString())); //$NON-NLS-1$
              dynamicElement.addElement(isNotNullElement);
  
              sb.setLength(0);
              sb.append(MyBatis3FormattingUtilities.getEscapedColumnName(introspectedColumn));
              sb.append(" = "); //$NON-NLS-1$
              sb.append(MyBatis3FormattingUtilities.getParameterClause(introspectedColumn));
              sb.append(',');
  
              isNotNullElement.addElement(new TextElement(sb.toString()));
          }
  
          buildPrimaryKeyWhereClause().forEach(answer::addElement);
  
          if (context.getPlugins().sqlMapUpdateByPrimaryKeySelectiveElementGenerated(answer, introspectedTable)) {
              parentElement.addElement(answer);
          }
      }
  }