/
fugimqtt.go
71 lines (62 loc) · 1.86 KB
/
fugimqtt.go
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package main
import (
"fmt"
"log"
"os"
"time"
// Paho MQTT library
MQTT "git.eclipse.org/gitroot/paho/org.eclipse.paho.mqtt.golang.git"
)
var f MQTT.MessageHandler = func(client *MQTT.Client, msg MQTT.Message) {
fmt.Println("--- NEW MQTT MESSAGE ---")
fmt.Printf(" TOPIC: %s\n", msg.Topic())
fmt.Printf(" MSG: %s\n", msg.Payload())
}
var c *MQTT.Client
func updateColor(target, color string, config Config) {
topic := config.MQTT.Topic + "/color"
log.Println(target)
switch target {
case "all":
token := c.Publish(topic, 0, false, color)
token.Wait()
case "taps", "tower":
topic += "/tower"
c.Publish(topic, 0, false, color)
case "shelves":
c.Publish(topic+"/rshelf", 0, false, color)
c.Publish(topic+"/lshelf", 0, false, color)
c.Publish(topic+"/rear", 0, false, color)
default:
log.Println("not caught")
}
}
// SetupMQTT : connect to server and register callbacks
func setupMQTT(config Config) {
fmt.Printf("username : %s", config.MQTT.Username)
if pass := config.MQTT.Password; pass == "" {
fmt.Println("No password given")
} else {
fmt.Printf("password: %s\n", config.MQTT.Password)
}
var server = fmt.Sprintf("tcp://%s:%s", config.MQTT.Host, config.MQTT.Port)
opts := MQTT.NewClientOptions().AddBroker(server)
opts.SetUsername(config.MQTT.Username)
opts.SetPassword(config.MQTT.Password)
opts.SetClientID(config.MQTT.ClientID)
c = MQTT.NewClient(opts)
if token := c.Connect(); token.Wait() && token.Error() != nil {
panic(token.Error())
} else {
fmt.Printf("connected to %s\n", server)
}
//defer c.Disconnect(250)
if token := c.Subscribe(config.MQTT.Topic, 0, f); token.Wait() && token.Error() != nil {
fmt.Println(token.Error())
os.Exit(1)
}
text := fmt.Sprintf("Hello from %s who just connected!", config.MQTT.ClientID)
token := c.Publish(config.MQTT.Topic, 0, false, text)
token.Wait()
time.Sleep(2 * time.Second)
}