moved background daemon into seperate module

server/app.py

@@ -1,5 +1,7 @@
-from flask import Flask, jsonify, render_template
 import logging
+logging.basicConfig(level=logging.INFO)
+
+from flask import Flask, jsonify, render_template
 import os, sys, threading, time
 
 from src.parser import (
@@ -9,14 +11,13 @@ from src.parser import (
 )
 from src.cache import Cache
 from src.web_calendar import Calendar
+from src.fetch_job import background_fetch_job
 from src import config
 
 app = Flask(__name__)
 sessions_cache = Cache()
 calendar = Calendar()
 
-logging.basicConfig(level=logging.INFO)
-
 # initial data fetch (required to work)
 try:
     sessions = calendar.fetch_sessions_since(config.CURRENT_SEMESTER_START)
@@ -50,18 +51,8 @@ def api_dashboard():
 def api_sessions():
     return jsonify(sessions_cache.get())
 
-# background daemon
-def fetch_job():
-    while True:
-        time.sleep(config.REFETCH_SECONDS)
-        try:
-            sessions = calendar.fetch_sessions_since(config.CURRENT_SEMESTER_START)
-            sessions_cache.set(sessions)
-        except Exception as e:
-            app.logger.warning(f"Failed to fetch from calDAV server, keeping old data. Error: {e}")
+
+threading.Thread(target=background_fetch_job, daemon=True, args=(calendar, sessions_cache)).start()
 
 if __name__ == "__main__":
-    if os.environ.get("WERKZEUG_RUN_MAIN") == "true" or not app.debug:
-        t = threading.Thread(target=fetch_job, daemon=True)
-        t.start()
     app.run(host="0.0.0.0", port=5000, debug=False)

server/src/config.py

@@ -62,3 +62,5 @@ def get_current_semester_start() -> date:
 
 
 CURRENT_SEMESTER_START = get_current_semester_start()
+
+logger.info(f"Config loaded. Current semesters start: {str(CURRENT_SEMESTER_START)}")

server/src/fetch_job.py

@@ -0,0 +1,15 @@
+import time, logging
+
+from src import config
+
+logger = logging.getLogger(__name__)
+
+# background daemon
+def background_fetch_job(calendar, sessions_cache):
+    while True:
+        time.sleep(config.REFETCH_SECONDS)
+        try:
+            sessions = calendar.fetch_sessions_since(config.CURRENT_SEMESTER_START)
+            sessions_cache.set(sessions)
+        except Exception as e:
+            logger.warning(f"Failed to fetch from calDAV server, keeping old data. \nError: {e}")

server/src/web_calendar.py

@@ -44,7 +44,7 @@ class Calendar:
                 "minutes":int((e.dtend.value - e.dtstart.value).total_seconds() / 60)
             })
 
-        logger.info(f"Fetched {len(event_list)}  sessions from calDAV server")
+        logger.info(f"Fetched {len(event_list)} sessions from calDAV server")
         return event_list
 
     # grab only the sessions that fall into the current semester