change command handler strat to function decorator (#26)

* change command handler strat to function decorator

* add handlers back to agent class

python/djls/logging.py

@@ -0,0 +1,44 @@
+from __future__ import annotations
+
+import logging
+import sys
+from dataclasses import dataclass
+from pathlib import Path
+
+
+@dataclass
+class LogConfig:
+    log_file: Path | str = "/tmp/djls_debug.log"
+    log_level: int = logging.DEBUG
+    console_level: int = logging.DEBUG
+    file_level: int = logging.DEBUG
+    format: str = "%(asctime)s - %(name)s - %(levelname)s - %(message)s"
+
+
+def configure_logging(config: LogConfig | None = None) -> logging.Logger:
+    if config is None:
+        config = LogConfig()
+
+    logger = logging.getLogger("djls")
+    logger.setLevel(config.log_level)
+
+    # Clear any existing handlers
+    logger.handlers.clear()
+
+    # File handler
+    fh = logging.FileHandler(config.log_file)
+    fh.setLevel(config.file_level)
+
+    # Console handler
+    ch = logging.StreamHandler(sys.stderr)
+    ch.setLevel(config.console_level)
+
+    # Formatter
+    formatter = logging.Formatter(config.format)
+    fh.setFormatter(formatter)
+    ch.setFormatter(formatter)
+
+    logger.addHandler(fh)
+    logger.addHandler(ch)
+
+    return logger