feat: initial commit

internal/infrastructure/telegram/update_poller.go

@@ -0,0 +1,50 @@
+package telegram
+
+import (
+	"context"
+	"log/slog"
+
+	tgbotapi "github.com/go-telegram-bot-api/telegram-bot-api/v5"
+)
+
+type UpdateHandler interface {
+	Handle(ctx context.Context, update tgbotapi.Update)
+}
+
+type UpdatePoller struct {
+	bot     *tgbotapi.BotAPI
+	handler UpdateHandler
+	logger  *slog.Logger
+	timeout int
+}
+
+func NewUpdatePoller(bot *tgbotapi.BotAPI, handler UpdateHandler, logger *slog.Logger) *UpdatePoller {
+	return &UpdatePoller{
+		bot:     bot,
+		handler: handler,
+		logger:  logger,
+		timeout: 60,
+	}
+}
+
+func (p *UpdatePoller) Start(ctx context.Context) error {
+	u := tgbotapi.NewUpdate(0)
+	u.Timeout = p.timeout
+
+	updates := p.bot.GetUpdatesChan(u)
+	p.logger.InfoContext(ctx, "update poller started")
+
+	for {
+		select {
+		case <-ctx.Done():
+			p.bot.StopReceivingUpdates()
+			p.logger.InfoContext(ctx, "update poller stopped")
+			return ctx.Err()
+		case update, ok := <-updates:
+			if !ok {
+				return nil
+			}
+			go p.handler.Handle(ctx, update)
+		}
+	}
+}