From f95f8c7d1959bddda38db68f41446aaad5e759ec Mon Sep 17 00:00:00 2001
From: Maximilian Giller <m.giller.dev@gmail.com>
Date: Fri, 28 Oct 2022 09:30:40 +0200
Subject: [PATCH] Hot reloader for config structure

---
 src/config/hotreloader.py | 41 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 41 insertions(+)
 create mode 100644 src/config/hotreloader.py

diff --git a/src/config/hotreloader.py b/src/config/hotreloader.py
new file mode 100644
index 0000000..3971239
--- /dev/null
+++ b/src/config/hotreloader.py
@@ -0,0 +1,41 @@
+import logging
+
+DEPENDENCY_INSTALLED = None
+
+try:
+    from watchdog.observers import Observer
+    from watchdog.events import (
+        FileSystemEventHandler,
+        FileCreatedEvent,
+        FileModifiedEvent,
+    )
+
+    DEPENDENCY_INSTALLED = True
+    logging.debug("Watchdog imported successfully. Hot reloading available.")
+except ImportError:
+    DEPENDENCY_INSTALLED = False
+    logging.info("Watchdog is not installed. Hot reloading unavailable.")
+
+
+class HotReloader(FileSystemEventHandler):
+    def __init__(self, path):
+        if not DEPENDENCY_INSTALLED:
+            return
+        
+        self.path = path
+        self.observer = Observer()
+        self.observer.schedule(self, path, recursive=True)
+        self.observer.start()
+
+    def __del__(self):
+        if not DEPENDENCY_INSTALLED:
+            return
+        
+        self.observer.stop()
+        self.observer.join()
+
+    def on_modified(self, event: FileModifiedEvent):
+        logging.info("Config file modified. Triggering hot reload.")
+
+    def on_created(self, event: FileCreatedEvent):
+        logging.info("New config file created. Triggering hot reload.")