package balance

import (
	"hpds_control_center/model"
	"math/rand"
)

// RandomBalance 随机负载均衡
type RandomBalance struct {
	curIndex int

	rss []*model.NodeLastStateItem
}

func (r *RandomBalance) Add(params model.NodeLastStateItem) error {
	r.rss = append(r.rss, &params)

	return nil
}

func (r *RandomBalance) Next() *model.NodeLastStateItem {
	if len(r.rss) == 0 {
		return nil
	}
	r.curIndex = rand.Intn(len(r.rss))
	return r.rss[r.curIndex]
}

func (r *RandomBalance) Get(int64) (*model.NodeLastStateItem, error) {
	return r.Next(), nil
}