package com.zbkj.common.config;

import com.fasterxml.jackson.annotation.JsonAutoDetect;
import com.fasterxml.jackson.annotation.PropertyAccessor;
import com.fasterxml.jackson.databind.DeserializationFeature;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.jsontype.impl.LaissezFaireSubTypeValidator;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.cache.annotation.EnableCaching;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.connection.RedisConnectionFactory;
import org.springframework.data.redis.connection.RedisStandaloneConfiguration;
import org.springframework.data.redis.connection.jedis.JedisClientConfiguration;
import org.springframework.data.redis.connection.jedis.JedisConnectionFactory;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.serializer.Jackson2JsonRedisSerializer;
import org.springframework.data.redis.serializer.StringRedisSerializer;
import redis.clients.jedis.JedisPoolConfig;

import java.time.Duration;

/**
 * Redis配置组件
 */
@Configuration
@EnableCaching
public class RedisConfig {

    @Value("${spring.redis.host}")
    private String redisHost;

    @Value("${spring.redis.port}")
    private int redisPort;

    @Value("${spring.redis.password}")
    private String redisPass;

    @Value("${spring.redis.database}")
    private int redisDb;

    @Value("${spring.redis.timeout}")
    private String timeout;

    @Value("${spring.redis.jedis.pool.max-active}")
    private int maxTotal;

    @Value("${spring.redis.jedis.pool.max-idle}")
    private int maxIdle;

    @Value("${spring.redis.jedis.pool.min-idle}")
    private int minIdle;

    @Value("${spring.redis.jedis.pool.max-wait}")
    private int maxWaitMillis;

    @Value("${spring.redis.jedis.pool.time-between-eviction-runs}")
    private String timeBetweenEvictionRunsMillis;

    @Bean
    public JedisPoolConfig jedisPoolConfig() {
        JedisPoolConfig jedisPoolConfig = new JedisPoolConfig();
        jedisPoolConfig.setMaxIdle(maxIdle);
        jedisPoolConfig.setMaxTotal(maxTotal);
        jedisPoolConfig.setMaxWaitMillis(maxWaitMillis);
        jedisPoolConfig.setMinIdle(minIdle);
        jedisPoolConfig.setTimeBetweenEvictionRunsMillis(Integer.parseInt(timeBetweenEvictionRunsMillis));
        return jedisPoolConfig;
    }

    @Bean
    public RedisConnectionFactory taskConnectionFactory() {
        RedisStandaloneConfiguration redisStandaloneConfiguration = new RedisStandaloneConfiguration();
        redisStandaloneConfiguration.setPort(redisPort);
        redisStandaloneConfiguration.setHostName(redisHost);
        redisStandaloneConfiguration.setDatabase(redisDb);
        redisStandaloneConfiguration.setPassword(redisPass);
        //获得默认的连接池构造
        //这里需要注意的是，RedisConnectionFactoryJ对于Standalone模式的没有（RedisStandaloneConfiguration，jedisPoolConfig）的构造函数，对此
        //我们用JedisClientConfiguration接口的builder方法实例化一个构造器，还得类型转换
        JedisClientConfiguration.DefaultJedisClientConfigurationBuilder jpConfigBuilder = (JedisClientConfiguration.DefaultJedisClientConfigurationBuilder) JedisClientConfiguration.builder();
        //修改我们的连接池配置
        jpConfigBuilder.usePooling();
        jpConfigBuilder.poolConfig(jedisPoolConfig());
        jpConfigBuilder.readTimeout(Duration.ofMillis(Integer.parseInt(timeout)));
        jpConfigBuilder.connectTimeout(Duration.ofMillis(Integer.parseInt(timeout)));
        //通过构造器来构造jedis客户端配置
        JedisClientConfiguration jedisClientConfiguration = jpConfigBuilder.build();
        //配置连接池属性
//        jedisConnectionFactory.setTimeout(Integer.parseInt(timeout));
        return new JedisConnectionFactory(redisStandaloneConfiguration, jedisClientConfiguration);
    }

    /**
     * redisTemplate相关配置
     *
     * @param redisConnectionFactory redis链接工厂
     */
    @Bean
    public RedisTemplate<String, Object> redisTemplate(RedisConnectionFactory redisConnectionFactory) {
        //配置redisTemplate
        RedisTemplate<String, Object> redisTemplate = new RedisTemplate<>();
        redisTemplate.setConnectionFactory(redisConnectionFactory);
        // 使用StringRedisSerializer来序列化和反序列化redis的key值
        StringRedisSerializer stringSerializer = new StringRedisSerializer();
        // 用Jackson2JsonRedisSerializer来序列化和反序列化redis的value值
        Jackson2JsonRedisSerializer<Object> jackson2JsonRedisSerializer = serializer();

        redisTemplate.setKeySerializer(stringSerializer);//key序列化
        redisTemplate.setValueSerializer(jackson2JsonRedisSerializer);//value序列化
        redisTemplate.setHashKeySerializer(stringSerializer);//Hash key序列化
        redisTemplate.setHashValueSerializer(jackson2JsonRedisSerializer);//Hash value序列化
        redisTemplate.afterPropertiesSet();
        return redisTemplate;
    }

    /**
     * 配置Jackson2JsonRedisSerializer序列化策略
     */
    private Jackson2JsonRedisSerializer<Object> serializer() {
        //设置序列化
        Jackson2JsonRedisSerializer<Object> jackson2JsonRedisSerializer = new Jackson2JsonRedisSerializer<>(Object.class);
        ObjectMapper om = new ObjectMapper();
        // 指定要序列化的域，field,get和set,以及修饰符范围，ANY是都有包括private和public
        om.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);
        // 指定序列化输入的类型，类必须是非final修饰的，final修饰的类，比如String,Integer等会跑出异常
        om.activateDefaultTyping(LaissezFaireSubTypeValidator.instance, ObjectMapper.DefaultTyping.NON_FINAL);
        // 不存在的字段,不被序列化
        om.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
        jackson2JsonRedisSerializer.setObjectMapper(om);
        return jackson2JsonRedisSerializer;
    }

}