Refactor Plex interaction into separate module

app/main.py

@@ -4,6 +4,7 @@ from fastapi import FastAPI, Request, Form
 from fastapi.responses import HTMLResponse, RedirectResponse
 from fastapi.templating import Jinja2Templates
 from fastapi.staticfiles import StaticFiles
+from app.utils.plex_client import connect_plex
 
 app = FastAPI()
 templates = Jinja2Templates(directory=os.path.join(os.path.dirname(__file__), "templates"))
@@ -36,11 +37,30 @@ async def login(
 ):
     config = load_config()
     theme = config.get("theme", "auto")
-    # demo：假装连接成功
-    if user == "admin":
-        return templates.TemplateResponse("login.html", {"request": request, "message": "连接成功", "success": True, "theme": theme, "path": "/login"})
-    else:
-        return templates.TemplateResponse("login.html", {"request": request, "message": "连接失败：用户名错误", "success": False, "theme": theme, "path": "/login"})
+    try:
+        connect_plex(config, user, pw, url, port, library)
+        save_config(config)
+        return templates.TemplateResponse(
+            "login.html",
+            {
+                "request": request,
+                "message": "连接成功",
+                "success": True,
+                "theme": theme,
+                "path": "/login",
+            },
+        )
+    except Exception as e:
+        return templates.TemplateResponse(
+            "login.html",
+            {
+                "request": request,
+                "message": f"连接失败：{str(e)}",
+                "success": False,
+                "theme": theme,
+                "path": "/login",
+            },
+        )
 
 @app.get("/playlist", response_class=HTMLResponse)
 async def get_playlist(request: Request):