/*
    * Copyright 2010-2023 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.spring;
  
  import static org.assertj.core.api.Assertions.assertThat;
  import static org.junit.jupiter.api.Assertions.assertThrows;
  import static org.junit.jupiter.api.Assertions.fail;
  
  import java.sql.SQLException;
  
  import org.apache.ibatis.session.ExecutorType;
  import org.apache.ibatis.session.SqlSession;
  import org.junit.jupiter.api.AfterEach;
  import org.junit.jupiter.api.BeforeAll;
  import org.junit.jupiter.api.Test;
  import org.springframework.dao.DataAccessException;
  import org.springframework.jdbc.datasource.DataSourceTransactionManager;
  import org.springframework.transaction.TransactionStatus;
  import org.springframework.transaction.support.DefaultTransactionDefinition;
  import org.springframework.transaction.support.TransactionSynchronizationManager;
  
  // tests basic usage and implementation only
  // MapperFactoryBeanTest handles testing the transactional functions in SqlSessionTemplate
  public class SqlSessionTemplateTest extends AbstractMyBatisSpringTest {
  
    private static SqlSession sqlSessionTemplate;
  
    @BeforeAll
    static void setupSqlTemplate() {
      sqlSessionTemplate = new SqlSessionTemplate(sqlSessionFactory);
    }
  
    @AfterEach
    void tearDown() {
      try {
        connection.close();
      } catch (SQLException ignored) {
      }
    }
  
    @Test
    void testGetConnection() throws java.sql.SQLException {
      java.sql.Connection conn = sqlSessionTemplate.getConnection();
  
      // outside of an explicit tx, getConnection() will start a tx, get an open connection then
      // end the tx, which closes the connection
      assertThat(conn.isClosed()).isTrue();
    }
  
    @Test
    void testGetConnectionInTx() throws java.sql.SQLException {
      TransactionStatus status = null;
  
      try {
        status = txManager.getTransaction(new DefaultTransactionDefinition());
  
        java.sql.Connection conn = sqlSessionTemplate.getConnection();
  
        assertThat(conn.isClosed()).isFalse();
  
      } finally {
        // rollback required to close connection
        txManager.rollback(status);
      }
    }
  
    @Test
    void testCommit() {
      assertThrows(UnsupportedOperationException.class, sqlSessionTemplate::commit);
    }
  
    @Test
    void testClose() {
      assertThrows(UnsupportedOperationException.class, sqlSessionTemplate::close);
    }
  
    @Test
    void testRollback() {
      assertThrows(UnsupportedOperationException.class, sqlSessionTemplate::rollback);
    }
  
    @Test
    void testExecutorType() {
      SqlSessionTemplate template = new SqlSessionTemplate(sqlSessionFactory, ExecutorType.BATCH);
      assertThat(template.getExecutorType()).isEqualTo(ExecutorType.BATCH);
  
     DataSourceTransactionManager manager = new DataSourceTransactionManager(dataSource);
 
     TransactionStatus status = null;
 
     try {
       status = manager.getTransaction(new DefaultTransactionDefinition());
 
       // will synchronize the template with the current tx
       template.getConnection();
 
       SqlSessionHolder holder = (SqlSessionHolder) TransactionSynchronizationManager.getResource(sqlSessionFactory);
 
       assertThat(holder.getExecutorType()).isEqualTo(ExecutorType.BATCH);
     } finally {
       // rollback required to close connection
       txManager.rollback(status);
     }
   }
 
   @Test
   void testExceptionTranslationShouldThrowMyBatisSystemException() throws SQLException {
     try {
       sqlSessionTemplate.selectOne("undefined");
       fail("exception not thrown when expected");
     } catch (MyBatisSystemException mbse) {
       // success
     } catch (Throwable t) {
       fail("SqlSessionTemplate should translate MyBatis PersistenceExceptions");
     } finally {
       connection.close(); // the template do not open the connection so it do not close it
     }
   }
 
   @Test
   void testExceptionTranslationShouldThrowDataAccessException() {
 
     // this query must be the same as the query in TestMapper.xml
     connection.getPreparedStatementResultSetHandler().prepareThrowsSQLException("SELECT 'fail'");
 
     try {
       sqlSessionTemplate.selectOne("org.mybatis.spring.TestMapper.findFail");
       fail("exception not thrown when expected");
     } catch (MyBatisSystemException mbse) {
       fail("SqlSessionTemplate should translate SQLExceptions into DataAccessExceptions");
     } catch (DataAccessException dae) {
       // success
     } catch (Throwable t) {
       fail("SqlSessionTemplate should translate MyBatis PersistenceExceptions");
     }
   }
 
   @Test
   void testTemplateWithNoTxInsert() {
 
     sqlSessionTemplate.getMapper(TestMapper.class).insertTest("test1");
     assertCommitJdbc();
     assertCommitSession();
 
   }
 
   @Test
   void testTemplateWithNoTxSelect() {
 
     sqlSessionTemplate.getMapper(TestMapper.class).findTest();
     assertCommit();
 
   }
 
   @Test
   void testWithTxRequired() {
     DefaultTransactionDefinition txDef = new DefaultTransactionDefinition();
     txDef.setPropagationBehaviorName("PROPAGATION_REQUIRED");
 
     TransactionStatus status = txManager.getTransaction(txDef);
 
     sqlSessionTemplate.getMapper(TestMapper.class).findTest();
 
     txManager.commit(status);
 
     assertCommit();
     assertSingleConnection();
   }
 
 }