add web page to config and enable autostart

start_web_conditionally.py

@@ -0,0 +1,40 @@
+import json
+import os
+import sys
+import subprocess
+
+PROJECT_DIR = os.path.dirname(os.path.abspath(__file__))
+CONFIG_FILE = os.path.join(PROJECT_DIR, 'config', 'config.json')
+WEB_INTERFACE_SCRIPT = os.path.join(PROJECT_DIR, 'web_interface.py')
+PYTHON_EXEC = sys.executable # Use the same python that runs this script
+
+def main():
+    try:
+        with open(CONFIG_FILE, 'r') as f:
+            config_data = json.load(f)
+    except FileNotFoundError:
+        print(f"Config file {CONFIG_FILE} not found. Web interface will not start.")
+        sys.exit(0) # Exit gracefully, don't start
+    except Exception as e:
+        print(f"Error reading config file {CONFIG_FILE}: {e}. Web interface will not start.")
+        sys.exit(1) # Exit with error, service might restart depending on config
+
+    autostart_enabled = config_data.get("web_display_autostart", False)
+
+    if autostart_enabled is True: # Explicitly check for True
+        print("Configuration 'web_display_autostart' is true. Starting web interface...")
+        try:
+            # Replace the current process with web_interface.py
+            # This is important for systemd to correctly manage the web server process.
+            # Ensure PYTHONPATH is set correctly if web_interface.py has relative imports to src
+            # The WorkingDirectory in systemd service should handle this for web_interface.py
+            os.execvp(PYTHON_EXEC, [PYTHON_EXEC, WEB_INTERFACE_SCRIPT])
+        except Exception as e:
+            print(f"Failed to exec web interface: {e}")
+            sys.exit(1) # Failed to start
+    else:
+        print("Configuration 'web_display_autostart' is false or not set. Web interface will not be started.")
+        sys.exit(0) # Exit gracefully, service considered successful
+
+if __name__ == '__main__':
+    main()