Improve post-purchase message

bot/handlers/user/payment.py

@@ -21,6 +21,7 @@ from bot.services.yookassa_service import YooKassaService
 from bot.middlewares.i18n import JsonI18n
 from config.settings import Settings
 from bot.services.notification_service import notify_admin_new_payment
+from bot.keyboards.inline.user_keyboards import get_connect_and_main_keyboard
 
 payment_processing_lock = asyncio.Lock()
 
@@ -176,6 +177,30 @@ async def process_successful_payment(session: AsyncSession, bot: Bot,
                 f"Failed to send final payment success message to user {user_id}: {e_notify}"
             )
 
+        config_link = activation_details.get("subscription_url") or _(
+            "config_link_not_available"
+        )
+        details_message = _(
+            "payment_successful_full",
+            end_date=final_end_date_for_user.strftime("%d.%m.%Y %H:%M:%S"),
+            config_link=config_link,
+        )
+        details_markup = get_connect_and_main_keyboard(
+            user_lang, i18n, settings, config_link
+        )
+        try:
+            await bot.send_message(
+                user_id,
+                details_message,
+                reply_markup=details_markup,
+                parse_mode="HTML",
+                disable_web_page_preview=True,
+            )
+        except Exception as e_notify:
+            logging.error(
+                f"Failed to send payment details message to user {user_id}: {e_notify}"
+            )
+
         await notify_admin_new_payment(
             bot,
             settings,

bot/keyboards/inline/user_keyboards.py

@@ -185,3 +185,41 @@ def get_user_banned_keyboard(support_link: Optional[str], lang: str,
     builder = InlineKeyboardBuilder()
     builder.button(text=_(key="menu_support_button"), url=support_link)
     return builder.as_markup()
+
+
+def get_connect_and_main_keyboard(
+        lang: str,
+        i18n_instance,
+        settings: Settings,
+        config_link: Optional[str]) -> InlineKeyboardMarkup:
+    """Keyboard with a connect button and a back to main menu button."""
+    _ = lambda key, **kwargs: i18n_instance.gettext(lang, key, **kwargs)
+    builder = InlineKeyboardBuilder()
+
+    if settings.SUBSCRIPTION_MINI_APP_URL:
+        builder.row(
+            InlineKeyboardButton(
+                text=_("connect_button"),
+                web_app=WebAppInfo(url=settings.SUBSCRIPTION_MINI_APP_URL),
+            )
+        )
+    elif config_link:
+        builder.row(
+            InlineKeyboardButton(text=_("connect_button"), url=config_link)
+        )
+    else:
+        builder.row(
+            InlineKeyboardButton(
+                text=_("connect_button"),
+                callback_data="main_action:my_subscription",
+            )
+        )
+
+    builder.row(
+        InlineKeyboardButton(
+            text=_("back_to_main_menu_button"),
+            callback_data="main_action:back_to_main",
+        )
+    )
+
+    return builder.as_markup()