110 lines
3.0 KiB
Go
110 lines
3.0 KiB
Go
package main
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import (
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"flag"
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"fmt"
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"log"
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"net"
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"os"
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"strconv"
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"strings"
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"sync"
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"time"
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tgbotapi "github.com/go-telegram-bot-api/telegram-bot-api/v5"
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"github.com/probakowski/go-satel"
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)
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const (
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MessageNotMoreOftenThanSeconds = 15
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)
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type TgSender struct {
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bot *tgbotapi.BotAPI
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}
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func (self TgSender) Send(msg GenericMessage) error {
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toSend := tgbotapi.NewMessage(msg.chatId, msg.msg)
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_, err := self.bot.Send(toSend)
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return err
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}
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func sendTgMessage(tgEvents chan GenericMessage, msg string, chatIds []int64) {
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for _, chatId := range chatIds {
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tgEvents <- GenericMessage{chatId, msg}
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}
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}
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type RealSleeper struct {
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duration time.Duration
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}
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func (self RealSleeper) Sleep(ch chan<- interface{}) {
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go func() {
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time.Sleep(self.duration)
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ch <- nil
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}()
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}
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func getCmdLineParams(logger *log.Logger) (string, []int64) {
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satelApiAddr := flag.String("satel-addr", "", "Address that should be used to connect to the SATEL device")
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satelApiPort := flag.String("satel-port", "7094", "Port that should be used to connect to the SATEL device")
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chatIdRaw := flag.String("tg-chat-id", "", "Telegram Chat ID where to send updates. Use \",\" to specify multiple IDs.")
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flag.Parse()
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if len(*satelApiAddr) == 0 || len(*satelApiPort) == 0 || len(*chatIdRaw) == 0 {
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logger.Fatal("Use --satel-addr=ADDR, --satel-port=PORT and --tg-chat-id=CHAT_ID command line flags to continue.")
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}
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chatIdsStrings := strings.Split(*chatIdRaw, ",")
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var chatIds []int64
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for _, chatIdStr := range chatIdsStrings {
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chatId, err := strconv.ParseInt(chatIdStr, 10, 64)
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if err != nil {
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logger.Fatalf("Tried to use a non-int value for one of tg_chatIds: %s. That's bad.", chatIdStr)
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}
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chatIds = append(chatIds, chatId)
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}
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satelAddr := fmt.Sprintf("%s:%s", *satelApiAddr, *satelApiPort)
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return satelAddr, chatIds
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}
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func makeSatel(satelAddr string) *satel.Satel {
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satelConn, err := net.Dial("tcp", satelAddr)
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if err != nil {
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panic(err)
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}
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return satel.NewConfig(satelConn, satel.Config{EventsQueueSize: 10})
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}
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func main() {
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var (
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wg sync.WaitGroup
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tgEvents = make(chan GenericMessage, 100)
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sleeper = RealSleeper{time.Second * MessageNotMoreOftenThanSeconds}
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logger = log.New(os.Stderr, "Main", log.Lmicroseconds)
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)
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satelAddr, chatIds := getCmdLineParams(logger)
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s := makeSatel(satelAddr)
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logger.Printf("Connected to Satel: %s", satelAddr)
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bot, err := tgbotapi.NewBotAPI(os.Getenv("TELEGRAM_APITOKEN"))
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if err != nil {
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panic(err)
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}
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logger.Print("Created Telegram Bot API client")
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tgSender := TgSender{bot}
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Consume(SendToTg(tgSenderWorker(tgEvents, &wg, sleeper, log.New(os.Stderr, "TgSender", log.Lmicroseconds)),
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tgSender, &wg, log.New(os.Stderr, "SendToTg", log.Lmicroseconds)))
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for e := range FilterByLastSeen(s.Events, "hs_wro_last_seen.bin", log.New(os.Stderr, "FilterByLastSeen", log.Lmicroseconds)) {
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logger.Print("Received change from SATEL: ", e)
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sendTgMessage(tgEvents, fmt.Sprint("Change from SATEL: type:", e.Type, ", index:", e.Index, ", value:", e.Value), chatIds)
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}
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close(tgEvents)
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wg.Wait()
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}
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