// Copyright 2019 github.com. All rights reserved.
// Use of this source code is governed by github.com.

package parser

import (
	"cp-system-management-gateway/config"

	"github.com/jaryhe/gopkgs/cache"
)

var redisConfig config.RedisConfig

func RedisHandler(conf *config.Configure) {
	// redisConfig.Addr 不为空表示已经初始化
	if len(redisConfig.Addrs) != 0 {
		// 地址或密码变化，关闭当前连接，重新连接
		if len(redisConfig.Addrs) != len(conf.Redis.Addrs) ||
			redisConfig.Password != conf.Redis.Password {
			cache.Close()
		} else {
			// 判断addrs数组是否相同
			addrs := map[string]bool{}
			for _, v := range redisConfig.Addrs {
				addrs[v] = true
			}
			for _, v := range conf.Redis.Addrs {
				addrs[v] = true
			}

			// 地址和密码不变返回
			if len(redisConfig.Addrs) == len(addrs) {
				return
			}

			// 关闭cache
			cache.Close()
		}
	}

	// 私有db不合法使用公共db
	db := conf.CpSystemManagementGateway.RedisDb
	if db < 0 || db > 15 {
		db = conf.Redis.DB
	}

	// 连接redis
	cache.Setup(conf.Redis.Addrs,
		conf.Redis.Password,
		db,
		conf.Redis.PoolSize,
		conf.Redis.MinIdleConns,
		conf.Redis.MaxRetries,
		conf.Redis.Cluster)

	if conf.RunMode != "prod" {
		// open 'DEBUG' switcher
	}

	redisConfig = conf.Redis
}