start hammer time

client.go

@@ -8,6 +8,28 @@ import (
 	"time"
 )
 
+func getLockedRandomClient() (*ChirpClient, error) {
+	muxClients.RLock()
+	ids := make([]int64, 0)
+	for _, c := range clients {
+		if c.Active {
+			ids = append(ids, c.TGUserID64)
+		}
+	}
+	muxClients.RUnlock()
+	if len(ids) == 0 {
+		return nil, errors.New("No active client.")
+	}
+
+	RndMux.Lock()
+	id := RndSrc.Intn(len(ids))
+	RndMux.Unlock()
+
+	clients[ids[id]].Mux.Lock()
+
+	return clients[ids[id]], nil
+}
+
 func setClientBusy(userID64 int64, from time.Time, duration time.Duration) error {
 	if from.UTC().Add(duration).After(time.Now().UTC()) {
 		if clt, ok := getLockedClient(userID64, false); ok {

cron.go

@@ -12,6 +12,8 @@ func startCron() *cron.Cron {
 	c := cron.New(cron.WithLocation(time.UTC))
 	c.AddFunc("15 7,15,23 * * *", cronSendWarReport)
 	c.AddFunc("58 6,14,22 * * *", cronSetDef)
+	c.AddFunc("02 1,3,5,9,11,13,17,19,21 * * *", cronHammerTime)
+	c.AddFunc("10 7,15,23 * * *", cronHammerTime) 
 	c.Start()
 	return c
 }
@@ -54,5 +56,10 @@ func cronSetDef() {
 }
 
 func cronGetHammerTime() {
-
+	clt, err := getLockedRandomClient()
+	logOnError(err, "cronGetHammerTime")
+	if err != {
+		return
+	}
+	clientSendCWMsg(clt.TGUserID64, `/time`, 0)
 }