init auth and main function

core/logger.py

@@ -0,0 +1,62 @@
+"""Logging configuration."""
+
+import logging
+import sys
+from pathlib import Path
+from logging.handlers import RotatingFileHandler
+
+
+def setup_logger(
+    name: str = "bot",
+    log_level: int = logging.INFO,
+    log_file: str = "logs/bot.log"
+) -> logging.Logger:
+    """
+    Configure and return logger instance.
+    
+    Args:
+        name: Logger name
+        log_level: Logging level
+        log_file: Path to log file
+    
+    Returns:
+        Configured logger instance
+    """
+    logger = logging.getLogger(name)
+    logger.setLevel(log_level)
+    
+    # Create formatters
+    console_formatter = logging.Formatter(
+        '%(asctime)s | %(levelname)-8s | %(name)s | %(message)s',
+        datefmt='%Y-%m-%d %H:%M:%S'
+    )
+    
+    file_formatter = logging.Formatter(
+        '%(asctime)s | %(levelname)-8s | %(name)s | %(funcName)s:%(lineno)d | %(message)s',
+        datefmt='%Y-%m-%d %H:%M:%S'
+    )
+    
+    # Console handler
+    console_handler = logging.StreamHandler(sys.stdout)
+    console_handler.setLevel(log_level)
+    console_handler.setFormatter(console_formatter)
+    
+    # File handler
+    if log_file:
+        Path(log_file).parent.mkdir(parents=True, exist_ok=True)
+        file_handler = RotatingFileHandler(
+            log_file,
+            maxBytes=10*1024*1024,  # 10MB
+            backupCount=5,
+            encoding='utf-8'
+        )
+        file_handler.setLevel(log_level)
+        file_handler.setFormatter(file_formatter)
+        logger.addHandler(file_handler)
+    
+    logger.addHandler(console_handler)
+    
+    return logger
+
+
+logger = setup_logger()