in progress

telegram.go

@@ -0,0 +1,62 @@
+package notify
+
+import (
+	"context"
+	"log"
+	"net"
+	"net/http"
+	"time"
+
+	tgbotapi "github.com/go-telegram-bot-api/telegram-bot-api/v5"
+)
+
+type Bot struct {
+	api *tgbotapi.BotAPI
+}
+
+func NewTelegram(token string, disableIPV6 bool) (*Bot, error) {
+	dialer := &net.Dialer{
+		Timeout:   30 * time.Second,
+		KeepAlive: 30 * time.Second,
+	}
+
+	transport := &http.Transport{
+		// Заменяем стандартный DialContext
+		DialContext: func(ctx context.Context, network, addr string) (net.Conn, error) {
+			// "tcp4" отключает IPv6
+			return dialer.DialContext(ctx, "tcp4", addr)
+		},
+		TLSHandshakeTimeout: 10 * time.Second,
+	}
+
+	client := &http.Client{
+		Transport: transport,
+		Timeout:   60 * time.Second,
+	}
+
+	if disableIPV6 {
+		client.Transport = &http.Transport{
+			// Заменяем стандартный DialContext
+			DialContext: func(ctx context.Context, network, addr string) (net.Conn, error) {
+				// "tcp4" отключает IPv6
+				return dialer.DialContext(ctx, "tcp4", addr)
+			},
+			TLSHandshakeTimeout: 10 * time.Second,
+		}
+	}
+
+	botApi, err := tgbotapi.NewBotAPIWithClient(token, tgbotapi.APIEndpoint, client)
+	if err != nil {
+		log.Fatalf("Telegram bot api error: %v", err)
+	}
+	bot := &Bot{
+		api: botApi,
+	}
+	return bot, nil
+}
+
+func (s *Bot) SendTextMessage(chatID int64, text string) (tgbotapi.Message, error) {
+	message := tgbotapi.NewMessage(chatID, text)
+	message.ParseMode = "Markdown"
+	return s.api.Send(message)
+}