Add config file for loading env vars and logger setup

config.py

@@ -0,0 +1,54 @@
+"""
+config.py
+
+Global configuration and logger setup for the project. This file centralizes shared
+constants and settings, such as the logging configuration and API constraints.
+
+Key Features:
+- Configures the logger for consistent logging across all modules.
+- Dynamically sets the logging level based on the DEBUG environment variable.
+- Provides constants for shared constraints like maximum prompt length.
+
+Constants:
+- DEBUG: Indicates whether debug mode is enabled.
+"""
+
+# Standard Library Imports
+import logging
+import os
+# Third-Party Library Imports
+from dotenv import load_dotenv
+
+
+# Load environment variables
+load_dotenv()
+
+
+# Enable debugging mode based on an environment variable
+debug_raw = os.getenv("DEBUG", "false").lower()
+if debug_raw not in {"true", "false"}:
+    print(f"Warning: Invalid DEBUG value '{debug_raw}'. Defaulting to 'false'.")
+DEBUG = debug_raw == "true"
+
+
+# Configure the logger
+logging.basicConfig(
+    level=logging.DEBUG if DEBUG else logging.INFO,
+    format="%(asctime)s - %(name)s - %(levelname)s - %(message)s",
+)
+logger: logging.Logger = logging.getLogger("tts_arena")
+logger.info(f"Debug mode is {'enabled' if DEBUG else 'disabled'}.")
+
+
+# Log environment variables
+def log_env_variable(var_name: str, value: str) -> None:
+    """
+    Logs the value of an environment variable for debugging purposes.
+
+    Args:
+        var_name (str): The name of the environment variable.
+        value (str): The value of the environment variable.
+    """
+    logger.debug(f"Environment variable '{var_name}' validated with value: {value}")
+
+log_env_variable("DEBUG", str(DEBUG))