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|
package main
import (
"fmt"
"log"
"net"
"strings"
)
func ShellyRun(config ShellyConfigs, rx chan MQTTMessage) {
for message := range rx {
ip, command, err := parseMessage(config, message)
if err != nil {
log.Println(err)
continue
}
log.Printf("Send '%s' to '%s'.", command, ip)
}
}
func parseMessage(config ShellyConfigs, m MQTTMessage) (ip *net.IP, command string, err error) {
elements := strings.Split(m.Topic, "/")
if len(elements) != 3 {
return nil, "", fmt.Errorf(
"Expected three topic levels but got %d in '%s'.",
len(elements), m.Topic,
)
}
switch string(m.Payload) {
case "extend":
command = "Cover.Close"
case "retract":
command = "Cover.Open"
case "stop":
command = "Cover.Stop"
default:
return nil, "", fmt.Errorf("Invalid payload '%s'.", m.Payload)
}
id := elements[1]
for _, c := range config {
if c.ID == id {
ip := net.ParseIP(c.IP)
return &ip, command, nil
}
}
return nil, "", fmt.Errorf("Got message for unknown cover '%s'", id)
}
|
