Stage 03.3 - exchangeInfo and symbol validation

app/src/telegram/handlers/market.py

@@ -3,6 +3,7 @@ from __future__ import annotations
 from aiogram import F, Router
 from aiogram.types import Message
 
+from src.integrations.exchange.exceptions import ExchangeError
 from src.integrations.exchange.service import ExchangeService
 
 
@@ -12,12 +13,41 @@ router = Router(name="market")
 @router.message(F.text == "📈 Рынок")
 async def open_market(message: Message) -> None:
     service = ExchangeService()
-    ticker = service.get_price()
+
+    try:
+        validation = service.validate_symbol(service.settings.default_symbol)
+        if not validation.is_valid:
+            await message.answer(
+                "<b>📈 Рынок</b>\n\n"
+                f"Ошибка символа: {validation.message}"
+            )
+            return
+
+        ticker = service.get_price(validation.normalized_symbol)
+    except ExchangeError as exc:
+        await message.answer(
+            "<b>📈 Рынок</b>\n\n"
+            "Не удалось получить цену с биржи.\n"
+            f"Ошибка: {exc}"
+        )
+        return
+
+    symbol_info = validation.symbol_info
+    symbol_status = symbol_info.status if symbol_info else "n/a"
+    market_type = symbol_info.market_type if symbol_info else "n/a"
+    market_modes = ", ".join(symbol_info.market_modes) if symbol_info and symbol_info.market_modes else "n/a"
+    tick_size = f"{symbol_info.tick_size}" if symbol_info and symbol_info.tick_size is not None else "n/a"
+    name = symbol_info.name if symbol_info and symbol_info.name else ticker.symbol
 
     text = (
         "<b>📈 Рынок</b>\n\n"
         f"Символ: <b>{ticker.symbol}</b>\n"
+        f"Название: {name}\n"
         f"Цена: <b>{ticker.price:.2f}</b>\n"
+        f"Статус: {symbol_status}\n"
+        f"Тип рынка: {market_type}\n"
+        f"Режимы: {market_modes}\n"
+        f"Tick size: {tick_size}\n"
         f"Источник: {ticker.source}\n"
         f"Обновлено: {ticker.updated_at}"
     )