create telegram utilities file

cmd/app/tghelper.go

@@ -0,0 +1,37 @@
+package main
+
+import (
+	tgbotapi "github.com/go-telegram-bot-api/telegram-bot-api/v5"
+)
+
+func Map[K comparable, T, V any](ts map[K]T, fn func(T) V) map[K]V {
+    result := make(map[K]V, len(ts))
+    for k, t := range ts {
+        result[k] = fn(t)
+    }
+    return result
+}
+
+func generateTgInlineKeyboard(buttonsCallback map[string]string) tgbotapi.InlineKeyboardMarkup {
+    rows := [][]tgbotapi.InlineKeyboardButton{}
+    for k, v := range buttonsCallback {
+        rows = append(rows,
+            tgbotapi.NewInlineKeyboardRow(
+                tgbotapi.NewInlineKeyboardButtonData(k, v),
+            ),
+        )
+    }
+
+    return tgbotapi.NewInlineKeyboardMarkup(rows...)
+}
+
+func sendMessage(bc BotController, UserID int64, Msg string) {
+	msg := tgbotapi.NewMessage(UserID, Msg)
+	bc.bot.Send(msg)
+} 
+
+func sendMessageKeyboard(bc BotController, UserID int64, Msg string, Kbd tgbotapi.InlineKeyboardMarkup) {
+	msg := tgbotapi.NewMessage(UserID, Msg)
+	msg.ReplyMarkup = Kbd
+	bc.bot.Send(msg)
+}