package broker

import (
	. "bp.jydev.jianyu360.cn/BaseService/gateway/common/gatecode"
	"bp.jydev.jianyu360.cn/BaseService/gateway/core/proxy/loadmodule"
	"fmt"
	"github.com/gogf/gf/v2/os/gcfg"
	"github.com/gogf/gf/v2/os/gctx"
	"log"
	"net/url"
	"sync"
)

type broker struct {
	sync.RWMutex
	addresses map[string]loadmodule.ProxyLoadModule
}

func InitBroker() *broker {
	b := new(broker)
	b.addresses = make(map[string]loadmodule.ProxyLoadModule)
	return b
}

// AddNode 发现注册新节点
func (r *broker) AddNode(code, address string) error {
	r.Lock()
	defer r.Unlock()
	module, ok := r.addresses[code]
	if !ok {
		module = loadmodule.LoadProxyLoadFactory(gcfg.Instance().MustGet(gctx.New(), "system.loadProxyModule", 0).Int())
		r.addresses[code] = module
	}
	log.Printf("节点%s服务注册%s", code, address)
	return module.Add(address)
}

// DelNode 节点下线watcher删除节点
func (r *broker) DelNode(code, address string) error {
	//进行删除操作
	r.Lock()
	defer r.Unlock()
	module, ok := r.addresses[code]
	if !ok {
		log.Printf("节点%s服务关闭异常%s", code, address)
		return NewErrorWithCode(GATEWAY_MODULE_UNDEFINED, fmt.Sprintf("节点下线异常 module %s", code))
	}
	log.Printf("节点%s服务关闭%s", code, address)
	return module.Del(address)
}

// GetServerAddr 获取代理节点
func (r *broker) GetServerAddr(code, ip string) (*url.URL, error) {
	r.RLock()
	defer r.RUnlock()
	module, ok := r.addresses[code]
	if !ok {
		return nil, NewErrorWithCode(GATEWAY_MODULE_UNDEFINED, fmt.Sprintf("获取服务地址异常 module %s", code))
	}
	return module.Get(ip)
}