package wx

import (
	"github.com/silenceper/wechat/oauth"
	"sync"
	"time"
)

type tokenTiming struct {
	Token *oauth.ResAccessToken
	Timing time.Time
}

var tokenMap map[string]*tokenTiming
var mutex sync.Mutex

func init(){
	tokenMap = make(map[string]*tokenTiming)
	tokenCheckLoop()
}

func addToken(openId string, token *oauth.ResAccessToken) {
	mutex.Lock()
	defer mutex.Unlock()

	// 无则添加，有则更新
	tokenMap[openId] = &tokenTiming{
		Token:  token,
		Timing: time.Now(),
	}
}

func getToken(openId string) *oauth.ResAccessToken{
	mutex.Lock()
	defer mutex.Unlock()

	if t, exists := tokenMap[openId]; !exists{
		return nil
	}else{
		return t.Token
	}
}

func removeToken(openId string){
	mutex.Lock()
	defer mutex.Unlock()

	if _, exists := tokenMap[openId]; exists{
		delete(tokenMap, openId)
	}
}

func tokenCheckLoop(){
	go func(){
		t:=time.NewTicker(10 * 60 * time.Second)
		for {
			select {
			case <-t.C:
				mutex.Lock()
				ks := make([]string, 0)
				for k, v := range tokenMap{
					if time.Now().Sub(v.Timing) > 90 * time.Minute{
						ks = append(ks, k)
					}
				}
				for i := range ks{
					//t, err := wxoauth.RefreshAccessToken(tokenMap[ks[i]].Token.RefreshToken)
					//if err != nil{
					//	delete(tokenMap, ks[i])
					//	continue
					//}else{
					//	tokenMap[ks[i]] = t
					//}
					// 暂时删除不刷新
					delete(tokenMap, ks[i])
				}
				mutex.Unlock()
			}
		}
	}()
}