package space.anyi.config;

import com.alibaba.druid.pool.DruidDataSource;
import org.mybatis.spring.SqlSessionFactoryBean;
import org.mybatis.spring.mapper.MapperScannerConfigurer;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.*;
import org.springframework.jdbc.datasource.DataSourceTransactionManager;
import org.springframework.stereotype.Controller;
import org.springframework.transaction.PlatformTransactionManager;
import org.springframework.transaction.annotation.EnableTransactionManagement;

import javax.sql.DataSource;

/**
 * @fileName: SpringConfig
 * @projectName: SSM_template
 * @package: space.anyi.config
 * @author: 杨逸
 * @date:2026/4/24 13:57
 * @description: Spring配置类替代spring-context.xml
 */
@Configuration  // 标识为配置类
@ComponentScan(basePackages = {"space.anyi"},excludeFilters = {@ComponentScan.Filter(value = {Controller.class}, type = FilterType.ANNOTATION)})  // 扫描Service层
@PropertySource("classpath:jdbc.properties")  // 加载属性文件
@EnableTransactionManagement  // 开启事务管理
public class SpringConfig {
    // 配置数据源
    @Bean
    public DataSource dataSource(@Value("${jdbc.url}") String url,
                                 @Value("${jdbc.username}") String username,
                                 @Value("${jdbc.password}") String password,
                                 @Value("${jdbc.driver}") String driver) {
        DruidDataSource dataSource = new DruidDataSource();
        dataSource.setUrl(url);
        dataSource.setUsername(username);
        dataSource.setPassword(password);
        dataSource.setDriverClassName(driver);
        return dataSource;
    }

    // 配置SqlSessionFactory
    @Bean
    public SqlSessionFactoryBean sqlSessionFactory(DataSource dataSource) {
        SqlSessionFactoryBean factoryBean = new SqlSessionFactoryBean();
        factoryBean.setDataSource(dataSource);
        factoryBean.setTypeAliasesPackage("space.anyi.entity");
        // 配置MyBatis设置
        org.apache.ibatis.session.Configuration configuration = new org.apache.ibatis.session.Configuration();
        configuration.setMapUnderscoreToCamelCase(true);  // 驼峰命名
        factoryBean.setConfiguration(configuration);
        return factoryBean;
    }

    // 配置Mapper扫描
    @Bean
    public MapperScannerConfigurer mapperScannerConfigurer() {
        MapperScannerConfigurer configurer = new MapperScannerConfigurer();
        configurer.setBasePackage("space.anyi");
        return configurer;
    }

    // 配置事务管理器
    @Bean
    public PlatformTransactionManager transactionManager(DataSource dataSource) {
        return new DataSourceTransactionManager(dataSource);
    }
}