package com.opencloud.autoconfigure;

import com.fasterxml.jackson.annotation.JsonAutoDetect;
import com.fasterxml.jackson.annotation.PropertyAccessor;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.opencloud.common.utils.RedisUtils;
import lombok.extern.slf4j.Slf4j;
import org.springframework.boot.autoconfigure.AutoConfigureAfter;
import org.springframework.boot.autoconfigure.condition.ConditionalOnBean;
import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
import org.springframework.boot.autoconfigure.data.redis.RedisAutoConfiguration;
import org.springframework.cache.CacheManager;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.cache.RedisCacheConfiguration;
import org.springframework.data.redis.cache.RedisCacheManager;
import org.springframework.data.redis.cache.RedisCacheWriter;
import org.springframework.data.redis.connection.RedisConnectionFactory;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.data.redis.serializer.Jackson2JsonRedisSerializer;
import org.springframework.data.redis.serializer.RedisSerializer;
import org.springframework.data.redis.serializer.StringRedisSerializer;

import java.time.Duration;

/**
 * Redis缓存配置
 *
 * @author liuyadu
 */
@Slf4j
@Configuration
@AutoConfigureAfter({RedisAutoConfiguration.class})
public class RedisCacheAutoConfiguration {

    public RedisCacheAutoConfiguration() {
        log.info("init redis cache");
    }

    /**
     * 重新配置一个RedisTemplate
     *
     * @param factory
     * @return
     */
    @Bean
    public RedisTemplate redisTemplate(RedisConnectionFactory factory) {
        RedisTemplate<String, Object> template = new RedisTemplate<String, Object>();
        template.setConnectionFactory(factory);
        Jackson2JsonRedisSerializer jackson2JsonRedisSerializer = new Jackson2JsonRedisSerializer(Object.class);
        ObjectMapper om = new ObjectMapper();
        om.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);
        om.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL);
        jackson2JsonRedisSerializer.setObjectMapper(om);
        RedisSerializer<String> stringSerializer = new StringRedisSerializer();
        // key采用String的序列化方式
        template.setKeySerializer(stringSerializer);
        // hash的key也采用String的序列化方式
        template.setHashKeySerializer(stringSerializer);
        // value序列化方式采用jackson
        template.setValueSerializer(jackson2JsonRedisSerializer);
        // hash的value序列化方式采用jackson
        template.setHashValueSerializer(jackson2JsonRedisSerializer);
        template.setDefaultSerializer(jackson2JsonRedisSerializer);
        return template;
    }

    /**
     * 配置缓存管理器
     *
     * @param redisConnectionFactory
     * @return
     */
    @Bean
    public CacheManager cacheManager(RedisConnectionFactory redisConnectionFactory) {
        // 生成一个默认配置，通过config对象即可对缓存进行自定义配置
        RedisCacheConfiguration redisCacheConfiguration = RedisCacheConfiguration.defaultCacheConfig();
        // 设置缓存的默认过期时间，也是使用Duration设置
        redisCacheConfiguration = redisCacheConfiguration
                // 设置缓存有效期一小时
                .entryTtl(Duration.ofHours(1));
        return RedisCacheManager
                .builder(RedisCacheWriter.nonLockingRedisCacheWriter(redisConnectionFactory))
                .cacheDefaults(redisCacheConfiguration).build();
    }


    @Bean
    @ConditionalOnMissingBean(RedisUtils.class)
    @ConditionalOnBean(StringRedisTemplate.class)
    public RedisUtils redisUtils(StringRedisTemplate stringRedisTemplate) {
        RedisUtils redisUtils =   new RedisUtils(stringRedisTemplate);
        log.info("RedisUtils [{}]", redisUtils);
        return redisUtils;
    }
}