Much better logging, gives feedback during process

WebServer/static/exchange_client.py

@@ -1,3 +1,5 @@
+import logging
+from logging.config import dictConfig
 from typing import Optional, Callable
 
 from Crypto.PublicKey.ECC import EccKey
@@ -7,6 +9,45 @@ from SantaExchange.MessageHandler import MessageHandler
 from SantaExchange.SantasBrain import Brain
 from SantaExchange.UserInterface import UserInterface
 
+logging_function: Optional[Callable[[str], None]] = None
+
+
+class ExchangeLogger(logging.Handler):
+	def emit(self, record: logging.LogRecord):
+		if logging_function is not None:
+			logging_function(record.message)
+
+
+LOGGING_SETTINGS = {
+	'version': 1,
+	'disable_existing_loggers': False,
+	'formatters': {
+		'std_formatter': {'format': '%(message)s'}
+	},
+	'handlers': {
+		'stdhandler': {
+			'class': 'logging.StreamHandler',
+			'formatter': 'std_formatter',
+			'stream': 'ext://sys.stdout'
+		},
+		'ExchangeLogger': {
+			'class': f'{__name__}.ExchangeLogger',
+			'formatter': 'std_formatter',
+			'level': 'INFO'
+		}
+	},
+	'loggers': {
+		'root': {
+			'handlers': ['stdhandler', 'ExchangeLogger'],
+			'level': 'NOTSET',
+			'propagate': True
+		}
+	}
+}
+
+dictConfig(LOGGING_SETTINGS)
+
+
 class ExchangeClient(MessageHandler, UserInterface):
 	def __init__(self, send_message_function, receive_user_function, announce_recipient_function):
 		MessageHandler.__init__(self)

WebServer/static/exchange_worker.js

@@ -21,13 +21,13 @@ async function prepare() {
 	}
 
 	function printLogs(record) {
-	    console.log(record);
+	    postMessage({type: 'status', stage: 'exchange', text: record});
 	}
 
 	pyodide.globals.set('send_message', sendMessage);
 	pyodide.globals.set('receive_user', receiveUser);
 	pyodide.globals.set('announce_recipient', announceRecipient);
-	pyodide.globals.set('print_logs_function', printLogs);
+	pyodide.globals.set('logging_function', printLogs);
 
 	pyodide.runPython(`
         exchange_worker = ExchangeClient(send_message, receive_user, announce_recipient)