/*
    *    Copyright 2009-2024 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.plugin;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.junit.jupiter.api.Assertions.fail;
  
  import java.io.Reader;
  import java.sql.Connection;
  import java.util.HashMap;
  import java.util.Map;
  
  import org.apache.ibatis.BaseDataTest;
  import org.apache.ibatis.executor.statement.StatementHandler;
  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 PluginTest {
  
    private static SqlSessionFactory sqlSessionFactory;
  
    @BeforeAll
    static void setUp() throws Exception {
      try (Reader reader = Resources.getResourceAsReader("org/apache/ibatis/plugin/mybatis-config.xml")) {
        sqlSessionFactory = new SqlSessionFactoryBuilder().build(reader);
      }
      BaseDataTest.runScript(sqlSessionFactory.getConfiguration().getEnvironment().getDataSource(),
          "org/apache/ibatis/plugin/CreateDB.sql");
    }
  
    @Test
    void shouldPluginSwitchSchema() {
      try (SqlSession sqlSession = sqlSessionFactory.openSession()) {
        Mapper mapper = sqlSession.getMapper(Mapper.class);
        assertEquals("Public user 1", mapper.selectNameById(1));
      }
  
      SchemaHolder.set("MYSCHEMA");
  
      try (SqlSession sqlSession = sqlSessionFactory.openSession()) {
        Mapper mapper = sqlSession.getMapper(Mapper.class);
        assertEquals("Private user 1", mapper.selectNameById(1));
      }
    }
  
    static final class SchemaHolder {
      private static ThreadLocal<String> value = ThreadLocal.withInitial(() -> "PUBLIC");
  
      public static void set(String tenantName) {
        value.set(tenantName);
      }
  
      public static String get() {
        return value.get();
      }
  
      private SchemaHolder() {
      }
    }
  
    @Intercepts(@Signature(type = StatementHandler.class, method = "prepare", args = { Connection.class, Integer.class }))
    public static class SwitchCatalogInterceptor implements Interceptor {
      @Override
      public Object intercept(Invocation invocation) throws Throwable {
        Object[] args = invocation.getArgs();
        Connection con = (Connection) args[0];
        con.setSchema(SchemaHolder.get());
        return invocation.proceed();
      }
    }
  
    @Test
    void shouldPluginNotInvokeArbitraryMethod() {
      Map<?, ?> map = new HashMap<>();
      map = (Map<?, ?>) new AlwaysMapPlugin().plugin(map);
      try {
        map.get("Anything");
        fail("Exected IllegalArgumentException, but no exception was thrown.");
      } catch (IllegalArgumentException e) {
        assertEquals(
            "Method 'public abstract java.lang.Object java.util.Map.get(java.lang.Object)' is not supported as a plugin target.",
            e.getMessage());
     } catch (Exception e) {
       fail("Exected IllegalArgumentException, but was " + e.getClass(), e);
     }
   }
 
   @Intercepts({ @Signature(type = Map.class, method = "get", args = { Object.class }) })
   public static class AlwaysMapPlugin implements Interceptor {
     @Override
     public Object intercept(Invocation invocation) {
       return "Always";
     }
   }
 }