Use the same API handle across the entire app

This opens doors in the future to storing state in the API class, and is
just cleaner in general.

main.py

@@ -44,9 +44,10 @@ if __name__ == "__main__":
     # Load config values
     config.load()
 
-    # If we have API access, use it to pull our stream list
-    if config.is_api_ready():
-        config.LAST_STREAM_LIST = ovenapi.OvenAPI(config.API_USER, config.API_PASS).get_stream_list()
+    # If we have API access, use it to pull our stream list into cache
+    config.LAST_STREAM_LIST = ovenapi.get_api_handle(
+        username=config.API_USER, password=config.API_PASS
+    ).get_stream_list()
 
     runpath = Path(Path(__file__).parent.resolve(), "assets")
 

management.py

@@ -13,7 +13,7 @@ class Management:
     def __init__(self):
         self.page_template = Path("template/management.mako").read_text(encoding="utf-8")
         self.redirect_template = Path("template/message.mako").read_text(encoding="utf-8")
-        self.api = ovenapi.OvenAPI(config.API_USER, config.API_PASS)
+        self.api = ovenapi.get_api_handle(username=config.API_USER, password=config.API_PASS)
 
     @staticmethod
     def __verify_same_domain() -> bool:

ovenapi.py

@@ -1,6 +1,9 @@
 import requests
 
 
+API_HANDLE = None
+
+
 class OvenAPI:
     def __init__(self, username: str, password: str, api_path: str = "http://localhost:8081/v1") -> None:
         self.opener = requests.Session()
@@ -111,3 +114,12 @@ class OvenAPI:
             return resp["response"]["input"]["sourceUrl"].split("://")[1].split(":")[0]
         except Exception:
             return None
+
+
+def get_api_handle(**kwargs):
+    """Cache and return a single canonical API handle."""
+    global API_HANDLE  # noqa: PLW0603
+    if API_HANDLE is None:
+        API_HANDLE = OvenAPI(**kwargs)
+
+    return API_HANDLE

status.py

@@ -16,7 +16,7 @@ class Status:
         return self
 
     def __init__(self):
-        self.api = ovenapi.OvenAPI(config.API_USER, config.API_PASS)
+        self.api = ovenapi.get_api_handle(username=config.API_USER, password=config.API_PASS)
 
     @cherrypy.expose
     @cherrypy.tools.json_out()

viewer.py

@@ -12,7 +12,7 @@ class Viewer:
     def __init__(self):
         self.webcall_template = Path("template/webcall.mako").read_text(encoding="utf-8")
         self.single_template = Path("template/single.mako").read_text(encoding="utf-8")
-        self.api = ovenapi.OvenAPI(config.API_USER, config.API_PASS)
+        self.api = ovenapi.get_api_handle(username=config.API_USER, password=config.API_PASS)
 
     def app_is_okay(self, app_name):
         # If we can't access the API, we can't check if an app exists, just okay it