/*
    *    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.blobtest;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.junit.jupiter.api.Assertions.assertTrue;
  
  import java.io.Reader;
  import java.util.List;
  
  import org.apache.ibatis.BaseDataTest;
  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.junit.jupiter.api.BeforeAll;
  import org.junit.jupiter.api.Test;
  
  class BlobTest {
      private static SqlSessionFactory sqlSessionFactory;
  
      @BeforeAll
      static void initDatabase() throws Exception {
          try (Reader reader = Resources.getResourceAsReader("org/apache/ibatis/submitted/blobtest/MapperConfig.xml")) {
              sqlSessionFactory = new SqlSessionFactoryBuilder().build(reader);
          }
  
          BaseDataTest.runScript(sqlSessionFactory.getConfiguration().getEnvironment().getDataSource(),
                  "org/apache/ibatis/submitted/blobtest/CreateDB.sql");
      }
  
      @Test
      /*
       * This test demonstrates the use of type aliases for primitive types
       * in constructor based result maps
       */
      void testInsertBlobThenSelectAll() {
          try (SqlSession sqlSession = sqlSessionFactory.openSession()) {
              BlobMapper blobMapper = sqlSession.getMapper(BlobMapper.class);
  
              byte[] myblob = new byte[] {1, 2, 3, 4, 5};
              BlobRecord blobRecord = new BlobRecord(1, myblob);
              int rows = blobMapper.insert(blobRecord);
              assertEquals(1, rows);
  
              // NPE here due to unresolved type handler
              List<BlobRecord> results = blobMapper.selectAll();
  
              assertEquals(1, results.size());
              BlobRecord result = results.get(0);
              assertEquals (blobRecord.getId(), result.getId());
              assertTrue (blobsAreEqual(blobRecord.getBlob(), result.getBlob()));
          }
      }
  
      @Test
      /*
       * This test demonstrates the use of type aliases for primitive types
       * in constructor based result maps
       */
      void testInsertBlobObjectsThenSelectAll() {
          try (SqlSession sqlSession = sqlSessionFactory.openSession()) {
              BlobMapper blobMapper = sqlSession.getMapper(BlobMapper.class);
  
              Byte[] myblob = new Byte[] {1, 2, 3, 4, 5};
              BlobRecord blobRecord = new BlobRecord(1, myblob);
              int rows = blobMapper.insert(blobRecord);
              assertEquals(1, rows);
  
              // NPE here due to unresolved type handler
              List<BlobRecord> results = blobMapper.selectAllWithBlobObjects();
  
              assertEquals(1, results.size());
              BlobRecord result = results.get(0);
              assertEquals (blobRecord.getId(), result.getId());
              assertTrue (blobsAreEqual(blobRecord.getBlob(), result.getBlob()));
          }
      }
  
      static boolean blobsAreEqual(byte[] blob1, byte[] blob2) {
          if (blob1 == null) {
              return blob2 == null;
          }
  
          if (blob2 == null) {
              return blob1 == null;
         }
 
         boolean rc = blob1.length == blob2.length;
 
         if (rc) {
             for (int i = 0; i < blob1.length; i++) {
                 if (blob1[i] != blob2[i]) {
                     rc = false;
                     break;
                 }
             }
         }
 
         return rc;
     }
 }