/*
    *    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.javamapper.elements.sqlprovider;
  
  import static org.mybatis.generator.codegen.mybatis3.MyBatis3FormattingUtilities.getEscapedColumnName;
  import static org.mybatis.generator.codegen.mybatis3.MyBatis3FormattingUtilities.getParameterClause;
  import static org.mybatis.generator.internal.util.JavaBeansUtil.getGetterMethodName;
  import static org.mybatis.generator.internal.util.StringUtility.escapeStringForJava;
  
  import java.util.Set;
  
  import org.mybatis.generator.api.IntrospectedColumn;
  import org.mybatis.generator.api.dom.java.FullyQualifiedJavaType;
  import org.mybatis.generator.api.dom.java.JavaVisibility;
  import org.mybatis.generator.api.dom.java.Method;
  import org.mybatis.generator.api.dom.java.Parameter;
  import org.mybatis.generator.api.dom.java.TopLevelClass;
  import org.mybatis.generator.codegen.mybatis3.ListUtilities;
  
  public class ProviderUpdateByPrimaryKeySelectiveMethodGenerator extends AbstractJavaProviderMethodGenerator {
  
      @Override
      public void addClassElements(TopLevelClass topLevelClass) {
          FullyQualifiedJavaType fqjt = introspectedTable.getRules().calculateAllFieldsClass();
          Set<FullyQualifiedJavaType> importedTypes = initializeImportedTypes(fqjt);
  
          Method method = new Method(introspectedTable.getUpdateByPrimaryKeySelectiveStatementId());
          method.setReturnType(FullyQualifiedJavaType.getStringInstance());
          method.setVisibility(JavaVisibility.PUBLIC);
          method.addParameter(new Parameter(fqjt, "row")); //$NON-NLS-1$
  
          context.getCommentGenerator().addGeneralMethodComment(method, introspectedTable);
  
          method.addBodyLine("SQL sql = new SQL();"); //$NON-NLS-1$
  
          method.addBodyLine(String.format("sql.UPDATE(\"%s\");", //$NON-NLS-1$
                  escapeStringForJava(introspectedTable.getFullyQualifiedTableNameAtRuntime())));
          method.addBodyLine(""); //$NON-NLS-1$
  
          for (IntrospectedColumn introspectedColumn :
                  ListUtilities.removeGeneratedAlwaysColumns(introspectedTable.getNonPrimaryKeyColumns())) {
              if (!introspectedColumn.getFullyQualifiedJavaType().isPrimitive()) {
                  method.addBodyLine(String.format("if (row.%s() != null) {", //$NON-NLS-1$
                          getGetterMethodName(introspectedColumn.getJavaProperty(),
                                  introspectedColumn.getFullyQualifiedJavaType())));
              }
  
              method.addBodyLine(String.format("sql.SET(\"%s = %s\");", //$NON-NLS-1$
                      escapeStringForJava(getEscapedColumnName(introspectedColumn)),
                      getParameterClause(introspectedColumn)));
  
              if (!introspectedColumn.getFullyQualifiedJavaType().isPrimitive()) {
                  method.addBodyLine("}"); //$NON-NLS-1$
              }
  
              method.addBodyLine(""); //$NON-NLS-1$
          }
  
          for (IntrospectedColumn introspectedColumn : introspectedTable.getPrimaryKeyColumns()) {
              method.addBodyLine(String.format("sql.WHERE(\"%s = %s\");", //$NON-NLS-1$
                      escapeStringForJava(getEscapedColumnName(introspectedColumn)),
                      getParameterClause(introspectedColumn)));
          }
  
          method.addBodyLine(""); //$NON-NLS-1$
  
          method.addBodyLine("return sql.toString();"); //$NON-NLS-1$
  
          if (context.getPlugins()
                  .providerUpdateByPrimaryKeySelectiveMethodGenerated(method, topLevelClass, introspectedTable)) {
              topLevelClass.addImportedTypes(importedTypes);
              topLevelClass.addMethod(method);
          }
      }
  }