ai did his job.

src/favorite_stickers/telegram.py

@@ -0,0 +1,75 @@
+from __future__ import annotations
+
+from pathlib import Path
+
+from aiogram import Bot
+from aiogram.exceptions import TelegramBadRequest
+from aiogram.types import FSInputFile, InputSticker
+
+from .service import RemoteSticker
+
+
+class AiogramTelegramGateway:
+    def __init__(self, bot: Bot) -> None:
+        self.bot = bot
+
+    async def create_pack(
+        self,
+        user_id: int,
+        name: str,
+        title: str,
+        sticker_path: Path,
+        emoji: str,
+    ) -> RemoteSticker:
+        await self.bot.create_new_sticker_set(
+            user_id=user_id,
+            name=name,
+            title=title,
+            stickers=[self._input_sticker(sticker_path, emoji)],
+            sticker_type="regular",
+        )
+        return await self._last_sticker(name)
+
+    async def add_sticker(
+        self,
+        user_id: int,
+        name: str,
+        sticker_path: Path,
+        emoji: str,
+    ) -> RemoteSticker:
+        await self.bot.add_sticker_to_set(
+            user_id=user_id,
+            name=name,
+            sticker=self._input_sticker(sticker_path, emoji),
+        )
+        return await self._last_sticker(name)
+
+    async def delete_sticker(self, sticker_file_id: str) -> None:
+        await self.bot.delete_sticker_from_set(sticker=sticker_file_id)
+
+    async def get_pack(self, name: str) -> list[RemoteSticker] | None:
+        try:
+            sticker_set = await self.bot.get_sticker_set(name=name)
+        except TelegramBadRequest as error:
+            if "STICKERSET_INVALID" in error.message.upper():
+                return None
+            raise
+        return [
+            RemoteSticker(file_id=item.file_id, unique_id=item.file_unique_id)
+            for item in sticker_set.stickers
+        ]
+
+    async def _last_sticker(self, name: str) -> RemoteSticker:
+        sticker_set = await self.bot.get_sticker_set(name=name)
+        if not sticker_set.stickers:
+            raise RuntimeError("Telegram вернул пустой стикерпак после добавления.")
+        sticker = sticker_set.stickers[-1]
+        return RemoteSticker(file_id=sticker.file_id, unique_id=sticker.file_unique_id)
+
+    @staticmethod
+    def _input_sticker(path: Path, emoji: str) -> InputSticker:
+        return InputSticker(
+            sticker=FSInputFile(path, filename="favorite.webm"),
+            format="video",
+            emoji_list=[emoji or "❤️"],
+        )