Add twitch

src/services/twitch.py

@@ -0,0 +1,71 @@
+from asyncio import Lock
+import json
+
+from twitchAPI.twitch import Twitch
+from twitchAPI.type import AuthScope
+
+import aiofiles
+
+from config import config
+
+
+class State:
+    pass
+
+
+class TokenStorage:
+    lock = Lock()
+
+    @staticmethod
+    async def save(acceess_token: str, refresh_token: str):
+        data = json.dumps({"access_token": acceess_token, "refresh_token": refresh_token})
+
+        async with TokenStorage.lock:
+            async with aiofiles.open(config.SECRETS_FILE_PATH, "w") as f:
+                await f.write(data)
+
+    @staticmethod
+    async def get() -> tuple[str, str]:
+        async with TokenStorage.lock:
+            async with aiofiles.open(config.SECRETS_FILE_PATH, "r") as f:
+                data_str = await f.read()
+
+        data = json.loads(data_str)
+        return data["access_token"], data["refresh_token"]
+
+
+class TwitchService:
+    SCOPES = [AuthScope.CHANNEL_BOT]
+
+    def __init__(self, twitch: Twitch):
+        self.twitch = twitch
+
+        self.state: State | None = None
+
+    @classmethod
+    async def authorize(cls):
+        twitch = Twitch(
+            config.TWITCH_CLIENT_ID,
+            config.TWITCH_CLIENT_SECRET
+        )
+
+        twitch.user_auth_refresh_callback = TokenStorage.save
+
+        token, refresh_token = await TokenStorage.get()
+        await twitch.set_user_authentication(token, cls.SCOPES, refresh_token)
+
+        return twitch
+
+    @classmethod
+    async def run(cls):
+        pass
+
+    @classmethod
+    async def start(cls):
+        twith = await cls.authorize()
+
+        await cls(twith).run()
+
+
+async def start_twitch_service():
+    await TwitchService.start()