Create logging_config.py

logging_config.py

@@ -0,0 +1,45 @@
+"""
+Structured logging configuration for the RAG chatbot.
+Outputs both to console and a rotating file handler.
+"""
+
+import logging
+import os
+from logging.handlers import RotatingFileHandler
+from pathlib import Path
+
+
+def setup_logging(
+    log_dir: str = "logs",
+    log_file: str = "admissions_rag.log",
+    level: int = logging.INFO,
+    max_bytes: int = 5 * 1024 * 1024,   # 5 MB
+    backup_count: int = 3,
+) -> logging.Logger:
+    Path(log_dir).mkdir(parents=True, exist_ok=True)
+    log_path = os.path.join(log_dir, log_file)
+
+    fmt = logging.Formatter(
+        fmt="%(asctime)s | %(levelname)-8s | %(name)s | %(message)s",
+        datefmt="%Y-%m-%d %H:%M:%S",
+    )
+
+    root_logger = logging.getLogger()
+    root_logger.setLevel(level)
+
+    # Console handler
+    if not any(isinstance(h, logging.StreamHandler) for h in root_logger.handlers):
+        ch = logging.StreamHandler()
+        ch.setFormatter(fmt)
+        root_logger.addHandler(ch)
+
+    # File handler
+    fh = RotatingFileHandler(log_path, maxBytes=max_bytes, backupCount=backup_count)
+    fh.setFormatter(fmt)
+    root_logger.addHandler(fh)
+
+    return root_logger
+
+
+def get_logger(name: str) -> logging.Logger:
+    return logging.getLogger(name)