significant refactor/cleanup

endpoints/yt.py

@@ -3,18 +3,19 @@
 import importlib
 from fastapi import FastAPI
 from pydantic import BaseModel
+from typing import Optional
 from .constructors import ValidYTSearchRequest
 
 class YT(FastAPI):
     """YT Endpoints"""   
-    def __init__(self, app: FastAPI, util, constants, glob_state):  # pylint: disable=super-init-not-called
+    def __init__(self, app: FastAPI, util, constants, glob_state) -> None:  # pylint: disable=super-init-not-called
         self.app = app
         self.util = util
         self.constants = constants
         self.glob_state = glob_state
         self.ytsearch = importlib.import_module("youtube_search_async").YoutubeSearch()
 
-        self.endpoints = {
+        self.endpoints: dict = {
             "yt/search": self.yt_video_search_handler,
             #tbd
             }
@@ -23,15 +24,20 @@ class YT(FastAPI):
             app.add_api_route(f"/{endpoint}", handler, methods=["POST"],
                               include_in_schema=True)
     
-    async def yt_video_search_handler(self, data: ValidYTSearchRequest):
+    async def yt_video_search_handler(self, data: ValidYTSearchRequest) -> dict:
         """
         Search for YT Video by Title (closest match returned)
         - **t**: Title to search
         """
         
-        title = data.t
-        yts_res = await self.ytsearch.search(title)
-        yt_video_id = yts_res[0].get('id', False)
+        title: str = data.t
+        yts_res: Optional[list[dict]] = await self.ytsearch.search(title)
+        if not yts_res:
+            return {
+                'err': True,
+                'errorText': 'No result.',
+            }
+        yt_video_id: str|bool = yts_res[0].get('id', False)
 
         return {
             'video_id': yt_video_id,