/*
    *    Copyright 2015-2022 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.mybatis.spring.boot.autoconfigure;
  
  import org.apache.ibatis.scripting.LanguageDriver;
  import org.mybatis.scripting.freemarker.FreeMarkerLanguageDriver;
  import org.mybatis.scripting.freemarker.FreeMarkerLanguageDriverConfig;
  import org.mybatis.scripting.thymeleaf.ThymeleafLanguageDriver;
  import org.mybatis.scripting.thymeleaf.ThymeleafLanguageDriverConfig;
  import org.mybatis.scripting.velocity.VelocityLanguageDriver;
  import org.mybatis.scripting.velocity.VelocityLanguageDriverConfig;
  import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
  import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
  import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
  import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingClass;
  import org.springframework.boot.context.properties.ConfigurationProperties;
  import org.springframework.context.annotation.Bean;
  import org.springframework.context.annotation.Configuration;
  
  /**
   * {@link EnableAutoConfiguration Auto-Configuration} for MyBatis's scripting language drivers.
   *
   * @author Kazuki Shimizu
   *
   * @since 2.1.0
   */
  @Configuration(proxyBeanMethods = false)
  @ConditionalOnClass(LanguageDriver.class)
  public class MybatisLanguageDriverAutoConfiguration {
  
    private static final String CONFIGURATION_PROPERTY_PREFIX = "mybatis.scripting-language-driver";
  
    /**
     * Configuration class for mybatis-freemarker 1.1.x or under.
     */
    @Configuration(proxyBeanMethods = false)
    @ConditionalOnClass(FreeMarkerLanguageDriver.class)
    @ConditionalOnMissingClass("org.mybatis.scripting.freemarker.FreeMarkerLanguageDriverConfig")
    public static class LegacyFreeMarkerConfiguration {
      @Bean
      @ConditionalOnMissingBean
      FreeMarkerLanguageDriver freeMarkerLanguageDriver() {
        return new FreeMarkerLanguageDriver();
      }
    }
  
    /**
     * Configuration class for mybatis-freemarker 1.2.x or above.
     */
    @Configuration(proxyBeanMethods = false)
    @ConditionalOnClass({ FreeMarkerLanguageDriver.class, FreeMarkerLanguageDriverConfig.class })
    public static class FreeMarkerConfiguration {
      @Bean
      @ConditionalOnMissingBean
      FreeMarkerLanguageDriver freeMarkerLanguageDriver(FreeMarkerLanguageDriverConfig config) {
        return new FreeMarkerLanguageDriver(config);
      }
  
      @Bean
      @ConditionalOnMissingBean
      @ConfigurationProperties(CONFIGURATION_PROPERTY_PREFIX + ".freemarker")
      public FreeMarkerLanguageDriverConfig freeMarkerLanguageDriverConfig() {
        return FreeMarkerLanguageDriverConfig.newInstance();
      }
    }
  
    /**
     * Configuration class for mybatis-velocity 2.0 or under.
     */
    @Configuration(proxyBeanMethods = false)
    @ConditionalOnClass(org.mybatis.scripting.velocity.Driver.class)
    @ConditionalOnMissingClass("org.mybatis.scripting.velocity.VelocityLanguageDriverConfig")
    @SuppressWarnings("deprecation")
    public static class LegacyVelocityConfiguration {
      @Bean
      @ConditionalOnMissingBean
      org.mybatis.scripting.velocity.Driver velocityLanguageDriver() {
        return new org.mybatis.scripting.velocity.Driver();
      }
    }
  
    /**
     * Configuration class for mybatis-velocity 2.1.x or above.
     */
    @Configuration(proxyBeanMethods = false)
    @ConditionalOnClass({ VelocityLanguageDriver.class, VelocityLanguageDriverConfig.class })
   public static class VelocityConfiguration {
     @Bean
     @ConditionalOnMissingBean
     VelocityLanguageDriver velocityLanguageDriver(VelocityLanguageDriverConfig config) {
       return new VelocityLanguageDriver(config);
     }
 
     @Bean
     @ConditionalOnMissingBean
     @ConfigurationProperties(CONFIGURATION_PROPERTY_PREFIX + ".velocity")
     public VelocityLanguageDriverConfig velocityLanguageDriverConfig() {
       return VelocityLanguageDriverConfig.newInstance();
     }
   }
 
   @Configuration(proxyBeanMethods = false)
   @ConditionalOnClass(ThymeleafLanguageDriver.class)
   public static class ThymeleafConfiguration {
     @Bean
     @ConditionalOnMissingBean
     ThymeleafLanguageDriver thymeleafLanguageDriver(ThymeleafLanguageDriverConfig config) {
       return new ThymeleafLanguageDriver(config);
     }
 
     @Bean
     @ConditionalOnMissingBean
     @ConfigurationProperties(CONFIGURATION_PROPERTY_PREFIX + ".thymeleaf")
     public ThymeleafLanguageDriverConfig thymeleafLanguageDriverConfig() {
       return ThymeleafLanguageDriverConfig.newInstance();
     }
 
     // This class provides to avoid the https://github.com/spring-projects/spring-boot/issues/21626 as workaround.
     @SuppressWarnings("unused")
     private static class MetadataThymeleafLanguageDriverConfig extends ThymeleafLanguageDriverConfig {
 
       @ConfigurationProperties(CONFIGURATION_PROPERTY_PREFIX + ".thymeleaf.dialect")
       @Override
       public DialectConfig getDialect() {
         return super.getDialect();
       }
 
       @ConfigurationProperties(CONFIGURATION_PROPERTY_PREFIX + ".thymeleaf.template-file")
       @Override
       public TemplateFileConfig getTemplateFile() {
         return super.getTemplateFile();
       }
 
     }
 
   }
 
 }