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// SPDX-FileCopyrightText: 2020 Ethel Morgan
//
// SPDX-License-Identifier: MIT
package main
import (
"context"
"flag"
"log"
"go.eth.moe/catbus-actuator-wakeonlan/config"
"go.eth.moe/catbus-actuator-wakeonlan/logger"
"go.eth.moe/catbus-actuator-wakeonlan/mqtt"
"go.eth.moe/catbus-actuator-wakeonlan/wakeonlan"
)
var (
configPath = flag.String("config-path", "", "path to config")
)
func main() {
flag.Parse()
if *configPath == "" {
log.Fatal("must set -config-path")
}
log, _ := logger.FromContext(context.Background())
config, err := config.ParseFile(*configPath)
if err != nil {
log.AddField("config-path", *configPath)
log.WithError(err).Fatal("could not parse config file")
}
log.AddField("broker-uri", config.Broker)
brokerOptions := mqtt.NewClientOptions()
brokerOptions.AddBroker(config.Broker)
brokerOptions.SetAutoReconnect(true)
brokerOptions.SetConnectionLostHandler(func(_ mqtt.Client, err error) {
log := log
if err != nil {
log = log.WithError(err)
}
log.Error("disconnected from MQTT broker")
})
brokerOptions.SetOnConnectHandler(func(broker mqtt.Client) {
log.Info("connected to MQTT broker")
for topic := range config.MACsByTopic {
token := broker.Subscribe(topic, mqtt.AtLeastOnce, func(_ mqtt.Client, msg mqtt.Message) {
mac, ok := config.MACsByTopic[msg.Topic()]
if !ok {
return
}
log.AddField("mac", mac)
log.AddField("topic", topic)
if err := wakeonlan.Wake(mac); err != nil {
log.WithError(err).Error("could not send wake-on-lan packet")
return
}
log.Info("sent wake-on-lan packet")
})
if err := token.Error(); err != nil {
log := log.WithError(err)
log.AddField("topic", topic)
log.Error("could not subscribe to MQTT topic")
}
}
})
broker := mqtt.NewClient(brokerOptions)
if token := broker.Connect(); token.Error() != nil {
log.WithError(token.Error()).Fatal("could not connect to MQTT broker")
}
select {}
}
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