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// SPDX-FileCopyrightText: 2020 Ethel Morgan
//
// SPDX-License-Identifier: MIT
package main
import (
"context"
"flag"
"log"
"go.eth.moe/catbus-wakeonlan/catbus"
"go.eth.moe/catbus-wakeonlan/config"
"go.eth.moe/catbus-wakeonlan/logger"
"go.eth.moe/catbus-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.BrokerURI)
catbusOptions := catbus.ClientOptions{
DisconnectHandler: func(_ *catbus.Client, err error) {
log := log
if err != nil {
log = log.WithError(err)
}
log.Error("disconnected from MQTT broker")
},
ConnectHandler: func(client *catbus.Client) {
log.Info("connected to MQTT broker")
for topic := range config.MACsByTopic {
err := client.Subscribe(topic, func(_ *catbus.Client, msg catbus.Message) {
if string(msg.Payload()) != "on" {
return
}
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 != nil {
log := log.WithError(err)
log.AddField("topic", topic)
log.Error("could not subscribe to MQTT topic")
}
}
},
}
catbusOptions.RebroadcastDefaults = map[string][]byte{}
for topic := range config.MACsByTopic {
catbusOptions.RebroadcastDefaults[topic] = []byte("off")
}
catbus := catbus.NewClient(config.BrokerURI, catbusOptions)
if err := catbus.Connect(); err != nil {
log.WithError(err).Fatal("could not connect to MQTT broker")
}
}
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