/*
    *    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.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 = { 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 = { 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;
   }
 }