added logging, added /start command

src/logger.py

@@ -0,0 +1,43 @@
+from __future__ import annotations
+
+import logging
+import os
+
+
+class Logger:
+    action_logger: str = 'action-logger'
+    action_logger_file: str = '/var/log/bot/action.log'
+
+    main_logger: str = 'main-logger'
+    main_logger_file: str = '/var/log/bot/app.log'
+
+    formatter: str = logging.Formatter('%(asctime)s[%(levelname)s]: %(message)s')
+
+    def setup(self) -> None:
+        self.configure(self.action_logger, self.action_logger_file, logging.INFO)
+        self.configure(self.main_logger, self.main_logger_file, logging.ERROR)
+
+    def configure(self, logger_name, log_file, level) -> None:
+        directory = os.path.dirname(log_file)
+        if not os.path.exists(directory):
+            os.makedirs(directory)
+
+        logger = logging.getLogger(logger_name)
+        file_handler = logging.FileHandler(log_file, mode='w')
+        file_handler.setFormatter(self.formatter)
+        stream_handler = logging.StreamHandler()
+        stream_handler.setFormatter(self.formatter)
+
+        logger.setLevel(level)
+        logger.addHandler(file_handler)
+        logger.addHandler(stream_handler)
+
+    @staticmethod
+    def get_logger(logger_name) -> logging.Logger:
+        return logging.getLogger(logger_name)
+
+    def info(message: str) -> None:
+        Logger.get_logger(Logger.action_logger).info(message)
+
+    def error(message: str) -> None:
+        Logger.get_logger(Logger.main_logger).error(message)