package util

import (
	"app.yhyue.com/moapp/jybase/go-logger/logger"
	"app.yhyue.com/moapp/message/model"
	"encoding/json"
	"sync"
)

type Broadcast struct {
	Clients map[chan string]struct{}
	Mu      sync.Mutex
}

var (
	SseBroadcast = &Broadcast{
		Clients: make(map[chan string]struct{}),
	}
)

// SendToUsers 消息通知
func (s *Broadcast) SendToUsers(msg model.SseMessage) {
	s.Mu.Lock()
	defer s.Mu.Unlock()
	msgData, _ := json.Marshal(msg)
	for clientChan := range s.Clients {
		select {
		case clientChan <- string(msgData):
			logger.Info("send to all user, msg:", msg)
		default:
			logger.Info("Client channel full, skipping")
		}
	}
}