refactor: project architecture refactor, container splitting

backend/bot/services/lknpd_service.py

@@ -0,0 +1,69 @@
+import asyncio
+import logging
+from datetime import datetime
+from typing import Optional
+
+from .lknpd_client import LknpdApiError, LknpdClient, PaymentType
+
+
+class LknpdService:
+    def __init__(
+        self,
+        inn: Optional[str],
+        password: Optional[str],
+        api_url: str = "https://lknpd.nalog.ru/api",
+    ) -> None:
+        self.inn = inn.strip() if inn else None
+        self.password = password
+        self.configured = bool(self.inn and self.password)
+        self._client = LknpdClient(base_url=api_url) if self.configured else None
+        self._auth_lock = asyncio.Lock()
+
+        if not self.configured:
+            logging.warning("LKNPD credentials are missing. Receipt sending disabled.")
+
+    async def _ensure_authenticated(self) -> bool:
+        if not self._client:
+            return False
+
+        async with self._auth_lock:
+            if self._client.is_authenticated:
+                return True
+
+            try:
+                await self._client.authenticate(self.inn, self.password)
+                return True
+            except LknpdApiError:
+                logging.exception("LKNPD authentication failed.")
+                return False
+
+    async def create_income_receipt(
+        self,
+        *,
+        item_name: str,
+        amount: float,
+        quantity: float = 1.0,
+        operation_time: Optional[datetime] = None,
+    ) -> Optional[str]:
+        if not self.configured:
+            return None
+        if not await self._ensure_authenticated():
+            return None
+
+        try:
+            receipt_uuid = await self._client.create_income(
+                name=item_name,
+                amount=amount,
+                quantity=quantity,
+                payment_type=PaymentType.WIRE,
+                operation_time=operation_time,
+            )
+            if not receipt_uuid:
+                logging.info("LKNPD receipt created without a UUID in response.")
+            return receipt_uuid
+        except LknpdApiError:
+            logging.exception("Failed to create LKNPD receipt.")
+            return None
+
+    async def close(self) -> None:
+        return None