feat: Implement logging functionality; add logger configuration and retrieval

objects/logger.py

@@ -0,0 +1,42 @@
+import logging
+import os
+from logging.handlers import RotatingFileHandler
+
+# Configuration values
+LOG_LEVEL = os.getenv("LOG_LEVEL", "INFO").upper()
+LOG_FORMAT = "%(asctime)s - %(name)s - %(levelname)s - %(message)s"
+LOG_DIR = os.getenv("LOG_DIR", os.path.join(os.getcwd(), "logs"))
+
+# Ensure log directory exists
+os.makedirs(LOG_DIR, exist_ok=True)
+
+# Log file path
+LOG_FILE = os.path.join(LOG_DIR, "app.log")
+
+# Create root logger
+logger = logging.getLogger("gpt-agent")
+logger.setLevel(LOG_LEVEL)
+
+# Formatter
+formatter = logging.Formatter(LOG_FORMAT)
+
+# Console handler
+console_handler = logging.StreamHandler()
+console_handler.setLevel(LOG_LEVEL)
+console_handler.setFormatter(formatter)
+logger.addHandler(console_handler)
+
+# Rotating file handler
+file_handler = RotatingFileHandler(LOG_FILE, maxBytes=5*1024*1024, backupCount=5)
+file_handler.setLevel(LOG_LEVEL)
+file_handler.setFormatter(formatter)
+logger.addHandler(file_handler)
+
+def get_logger(name: str | None = None) -> logging.Logger:
+    """
+    Retrieve a configured logger instance. If name is provided,
+    returns a child logger of the configured root logger.
+    """
+    if name:
+        return logger.getChild(name)
+    return logger