/*
    *    Copyright 2009-2023 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.apache.ibatis.binding;
  
  import static org.assertj.core.api.Assertions.assertThat;
  import static org.junit.jupiter.api.Assertions.assertNotNull;
  
  import java.util.ArrayList;
  import java.util.List;
  
  import javax.sql.DataSource;
  
  import org.apache.ibatis.BaseDataTest;
  import org.apache.ibatis.domain.blog.Author;
  import org.apache.ibatis.domain.blog.Post;
  import org.apache.ibatis.domain.blog.Section;
  import org.apache.ibatis.executor.BatchResult;
  import org.apache.ibatis.mapping.Environment;
  import org.apache.ibatis.session.Configuration;
  import org.apache.ibatis.session.ExecutorType;
  import org.apache.ibatis.session.SqlSession;
  import org.apache.ibatis.session.SqlSessionFactory;
  import org.apache.ibatis.session.SqlSessionFactoryBuilder;
  import org.apache.ibatis.transaction.TransactionFactory;
  import org.apache.ibatis.transaction.jdbc.JdbcTransactionFactory;
  import org.junit.jupiter.api.BeforeAll;
  import org.junit.jupiter.api.Test;
  
  class FlushTest {
    private static SqlSessionFactory sqlSessionFactory;
  
    @BeforeAll
    static void setup() throws Exception {
      DataSource dataSource = BaseDataTest.createBlogDataSource();
      TransactionFactory transactionFactory = new JdbcTransactionFactory();
      Environment environment = new Environment("Production", transactionFactory, dataSource);
      Configuration configuration = new Configuration(environment);
      configuration.setDefaultExecutorType(ExecutorType.BATCH);
      configuration.getTypeAliasRegistry().registerAlias(Post.class);
      configuration.getTypeAliasRegistry().registerAlias(Author.class);
      configuration.addMapper(BoundAuthorMapper.class);
      sqlSessionFactory = new SqlSessionFactoryBuilder().build(configuration);
    }
  
    @Test
    void invokeFlushStatementsViaMapper() {
      try (SqlSession session = sqlSessionFactory.openSession()) {
  
        BoundAuthorMapper mapper = session.getMapper(BoundAuthorMapper.class);
        Author author = new Author(-1, "cbegin", "******", "cbegin@nowhere.com", "N/A", Section.NEWS);
        List<Integer> ids = new ArrayList<>();
        mapper.insertAuthor(author);
        ids.add(author.getId());
        mapper.insertAuthor(author);
        ids.add(author.getId());
        mapper.insertAuthor(author);
        ids.add(author.getId());
        mapper.insertAuthor(author);
        ids.add(author.getId());
        mapper.insertAuthor(author);
        ids.add(author.getId());
  
        // test
        List<BatchResult> results = mapper.flush();
  
        assertThat(results.size()).isEqualTo(1);
        assertThat(results.get(0).getUpdateCounts().length).isEqualTo(ids.size());
  
        for (int id : ids) {
          Author selectedAuthor = mapper.selectAuthor(id);
          assertNotNull(selectedAuthor, id + " is not found.");
        }
  
        session.rollback();
      }
  
    }
  
  }