/*
    *    Copyright 2016-2026 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 issues.gh655;
  
  import static examples.mariadb.ItemsDynamicSQLSupport.id;
  import static examples.mariadb.ItemsDynamicSQLSupport.items;
  import static org.assertj.core.api.Assertions.assertThat;
  import static org.assertj.core.api.Assertions.assertThatExceptionOfType;
  import static org.mybatis.dynamic.sql.SqlBuilder.add;
  import static org.mybatis.dynamic.sql.SqlBuilder.constant;
  import static org.mybatis.dynamic.sql.SqlBuilder.isEqualToWhenPresent;
  import static org.mybatis.dynamic.sql.SqlBuilder.isGreaterThan;
  import static org.mybatis.dynamic.sql.SqlBuilder.select;
  import static org.mybatis.dynamic.sql.SqlBuilder.sum;
  
  import config.TestContainersConfiguration;
  import org.apache.ibatis.datasource.unpooled.UnpooledDataSource;
  import org.apache.ibatis.mapping.Environment;
  import org.apache.ibatis.session.Configuration;
  import org.apache.ibatis.session.SqlSession;
  import org.apache.ibatis.session.SqlSessionFactory;
  import org.apache.ibatis.session.SqlSessionFactoryBuilder;
  import org.apache.ibatis.transaction.jdbc.JdbcTransactionFactory;
  import org.junit.jupiter.api.BeforeAll;
  import org.junit.jupiter.api.Test;
  import org.mybatis.dynamic.sql.exception.InvalidSqlException;
  import org.mybatis.dynamic.sql.render.RenderingStrategies;
  import org.mybatis.dynamic.sql.select.SelectModel;
  import org.mybatis.dynamic.sql.select.render.SelectStatementProvider;
  import org.mybatis.dynamic.sql.util.mybatis3.CommonSelectMapper;
  import org.testcontainers.junit.jupiter.Container;
  import org.testcontainers.junit.jupiter.Testcontainers;
  import org.testcontainers.mariadb.MariaDBContainer;
  
  @Testcontainers
  class Gh655Test {
  
      @Container
      private static final MariaDBContainer mariadb =
              new MariaDBContainer(TestContainersConfiguration.MARIADB_LATEST)
                      .withInitScript("examples/mariadb/CreateDB.sql");
  
      private static SqlSessionFactory sqlSessionFactory;
  
      @BeforeAll
      static void setup() {
          UnpooledDataSource ds = new UnpooledDataSource(mariadb.getDriverClassName(), mariadb.getJdbcUrl(),
                  mariadb.getUsername(), mariadb.getPassword());
          Environment environment = new Environment("test", new JdbcTransactionFactory(), ds);
          Configuration config = new Configuration(environment);
          config.addMapper(CommonSelectMapper.class);
          sqlSessionFactory = new SqlSessionFactoryBuilder().build(config);
      }
  
      @Test
      void sumTest() {
          try (SqlSession session = sqlSessionFactory.openSession()) {
              CommonSelectMapper mapper = session.getMapper(CommonSelectMapper.class);
  
              SelectStatementProvider selectStatement = select(sum(id, isGreaterThan(5)).as("numrows"))
                      .from(items)
                      .build()
                      .render(RenderingStrategies.MYBATIS3);
  
              String expected = "select sum(id > #{parameters.p1,jdbcType=INTEGER}) as numrows from items";
              assertThat(selectStatement.getSelectStatement()).isEqualTo(expected);
              assertThat(selectStatement.getParameters()).containsEntry("p1", 5);
  
              Long numrows = mapper.selectOneLong(selectStatement);
              assertThat(numrows).isEqualTo(15L);
          }
      }
  
      @Test
      void sumWithOptionalTest() {
          SelectModel selectModel = select(sum(id, isEqualToWhenPresent((Integer) null)).as("numrows"))
                  .from(items)
                  .build();
  
          assertThatExceptionOfType(InvalidSqlException.class)
                  .isThrownBy(() -> selectModel.render(RenderingStrategies.MYBATIS3))
                  .withMessage("The \"sum\" function does not support conditions that fail to render");
      }
  
      @Test
      void sumAndAddTest() {
         try (SqlSession session = sqlSessionFactory.openSession()) {
             CommonSelectMapper mapper = session.getMapper(CommonSelectMapper.class);
 
             SelectStatementProvider selectStatement = select(add(sum(id, isGreaterThan(5)), constant("3")).as("numrows"))
                     .from(items)
                     .build()
                     .render(RenderingStrategies.MYBATIS3);
 
             String expected = "select (sum(id > #{parameters.p1,jdbcType=INTEGER}) + 3) as numrows from items";
             assertThat(selectStatement.getSelectStatement()).isEqualTo(expected);
             assertThat(selectStatement.getParameters()).containsEntry("p1", 5);
 
             Long numrows = mapper.selectOneLong(selectStatement);
             assertThat(numrows).isEqualTo(18L);
         }
     }
 
     @Test
     void columnComparisonTest() {
         // this is a nonsensical query just to test that rendering works as expected
         SelectStatementProvider selectStatement = select(sum(id, isGreaterThan(5)).as("numrows"))
                 .from(items)
                 .where(id, isGreaterThan(sum(id, isGreaterThan(5))))
                 .build()
                 .render(RenderingStrategies.MYBATIS3);
 
         String expected = "select sum(id > #{parameters.p1,jdbcType=INTEGER}) as numrows from items " +
                 "where id > sum(id > #{parameters.p2,jdbcType=INTEGER})";
         assertThat(selectStatement.getSelectStatement()).isEqualTo(expected);
         assertThat(selectStatement.getParameters()).containsEntry("p1", 5);
         assertThat(selectStatement.getParameters()).containsEntry("p2", 5);
     }
 }