/*
    *    Copyright 2009-2021 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
    *
    *       http://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.submitted.typehandler;
  
  import static org.junit.jupiter.api.Assertions.*;
  
  import java.io.Reader;
  
  import org.apache.ibatis.BaseDataTest;
  import org.apache.ibatis.builder.BuilderException;
  import org.apache.ibatis.io.Resources;
  import org.apache.ibatis.session.SqlSession;
  import org.apache.ibatis.session.SqlSessionFactory;
  import org.apache.ibatis.session.SqlSessionFactoryBuilder;
  import org.apache.ibatis.submitted.typehandler.Product.ConstantProductIdTypeHandler;
  import org.apache.ibatis.submitted.typehandler.Product.ProductId;
  import org.apache.ibatis.submitted.typehandler.Product.ProductIdTypeHandler;
  import org.apache.ibatis.type.JdbcType;
  import org.junit.jupiter.api.Assertions;
  import org.junit.jupiter.api.BeforeEach;
  import org.junit.jupiter.api.Test;
  
  class TypeHandlerTest {
  
    private SqlSessionFactory sqlSessionFactory;
  
    @BeforeEach
    void setUp() throws Exception {
      // create a SqlSessionFactory
      try (Reader reader = Resources.getResourceAsReader("org/apache/ibatis/submitted/typehandler/mybatis-config.xml")) {
        sqlSessionFactory = new SqlSessionFactoryBuilder().build(reader);
        sqlSessionFactory.getConfiguration().getTypeHandlerRegistry().register(StringTrimmingTypeHandler.class);
      }
  
      // populate in-memory database
      BaseDataTest.runScript(sqlSessionFactory.getConfiguration().getEnvironment().getDataSource(),
          "org/apache/ibatis/submitted/typehandler/CreateDB.sql");
    }
  
    // Some tests need to register additional type handler
    // before adding mapper.
    private void addMapper() {
      sqlSessionFactory.getConfiguration().addMapper(Mapper.class);
    }
  
    @Test
    void shouldGetAUser() {
      addMapper();
      try (SqlSession sqlSession = sqlSessionFactory.openSession()) {
        Mapper mapper = sqlSession.getMapper(Mapper.class);
        User user = mapper.getUser(1);
        assertEquals("User1", user.getName());
        assertEquals("Carmel", user.getCity());
        assertEquals("IN", user.getState());
      }
    }
  
    @Test
    void shouldApplyTypeHandlerOnGeneratedKey() {
      addMapper();
      try (SqlSession sqlSession = sqlSessionFactory.openSession()) {
        Mapper mapper = sqlSession.getMapper(Mapper.class);
        Product product = new Product();
        product.setName("new product");
        mapper.insertProduct(product);
        assertNotNull(product.getId());
        assertNotNull(product.getId().getValue());
      }
    }
  
    @Test
    void shouldApplyTypeHandlerWithJdbcTypeSpecified() {
      addMapper();
      try (SqlSession sqlSession = sqlSessionFactory.openSession()) {
        Mapper mapper = sqlSession.getMapper(Mapper.class);
        Product product = mapper.getProductByName("iPad");
        assertEquals(Integer.valueOf(2), product.getId().getValue());
      }
    }
  
    @Test
    void shouldApplyTypeHandlerUsingConstructor() {
      addMapper();
      try (SqlSession sqlSession = sqlSessionFactory.openSession()) {
        Mapper mapper = sqlSession.getMapper(Mapper.class);
        Product product = mapper.getProductByName("iPad");
       assertEquals(Integer.valueOf(2), product.getId().getValue());
     }
   }
 
   @Test
   void shouldApplyTypeHandlerOnReturnTypeWithJdbcTypeSpecified() {
     addMapper();
     try (SqlSession sqlSession = sqlSessionFactory.openSession()) {
       Mapper mapper = sqlSession.getMapper(Mapper.class);
       ProductId productId = mapper.getProductIdByName("iPad");
       assertEquals(Integer.valueOf(2), productId.getValue());
     }
   }
 
   @Test
   void shouldPickSoleTypeHandlerOnXmlResultMap() {
     addMapper();
     try (SqlSession sqlSession = sqlSessionFactory.openSession()) {
       Mapper mapper = sqlSession.getMapper(Mapper.class);
       Product product = mapper.getProductByNameXml("iPad");
       assertEquals(Integer.valueOf(2), product.getId().getValue());
     }
   }
 
   @Test
   void shouldPickSameTypeHandlerMappedToDifferentJdbcTypes() {
     sqlSessionFactory.getConfiguration().getTypeHandlerRegistry().register(ProductId.class, JdbcType.BIGINT,
         ProductIdTypeHandler.class);
     addMapper();
     try (SqlSession sqlSession = sqlSessionFactory.openSession()) {
       Mapper mapper = sqlSession.getMapper(Mapper.class);
       Product product = mapper.getProductByNameXml("iPad");
       assertEquals(Integer.valueOf(2), product.getId().getValue());
     }
   }
 
   @Test
   void shouldFailIfMultipleHandlerMappedToAType() {
     sqlSessionFactory.getConfiguration().getTypeHandlerRegistry().register(ProductId.class, JdbcType.BIGINT,
         ConstantProductIdTypeHandler.class);
     // multiple type handlers are mapped to ProductId and
     // none of them are mapped to null jdbcType.
     Assertions.assertThrows(BuilderException.class, this::addMapper);
   }
 
   @Test
   void shouldPickHandlerForNull() {
     sqlSessionFactory.getConfiguration().getTypeHandlerRegistry().register(ProductId.class, null,
         ConstantProductIdTypeHandler.class);
     // multiple type handlers are mapped to ProductId and
     // one of them are mapped to null jdbcType.
     addMapper();
     try (SqlSession sqlSession = sqlSessionFactory.openSession()) {
       Mapper mapper = sqlSession.getMapper(Mapper.class);
       Product product = mapper.getProductByNameXml("iPad");
       assertEquals(Integer.valueOf(999), product.getId().getValue());
     }
   }
 }