finish for init core

fuware/core/logger/config.py

@@ -0,0 +1,67 @@
+import json
+import logging
+import pathlib
+import typing
+from logging import config as logging_config
+
+__dir = pathlib.Path(__file__).parent
+__conf: dict[str, str] | None = None
+
+
+def _load_config(path: pathlib.Path, substitutions: dict[str, str] | None = None) -> dict[str, typing.Any]:
+  with open(path) as file:
+    if substitutions:
+      contents = file.read()
+      for key, value in substitutions.items():
+        # Replaces the key matches
+        #
+        # Example:
+        #   {"key": "value"}
+        #   "/path/to/${key}/file" -> "/path/to/value/file"
+        contents = contents.replace(f"${{{key}}}", value)
+
+      json_data = json.loads(contents)
+
+    else:
+      json_data = json.load(file)
+
+  return json_data
+
+
+def log_config() -> dict[str, str]:
+  if __conf is None:
+    raise ValueError("logger not configured, must call configured_logger first")
+
+  return __conf
+
+
+def configured_logger(
+  *,
+  mode: str,
+  config_override: pathlib.Path | None = None,
+  substitutions: dict[str, str] | None = None,
+) -> logging.Logger:
+  """
+  Configure the logger based on the mode and return the root logger
+
+  Args:
+      mode (str): The mode to configure the logger for (production, development, testing)
+      config_override (pathlib.Path, optional): A path to a custom logging config. Defaults to None.
+      substitutions (dict[str, str], optional): A dictionary of substitutions to apply to the logging config.
+  """
+  global __conf
+
+  if config_override:
+    __conf = _load_config(config_override, substitutions)
+  else:
+    if mode == "production":
+      __conf = _load_config(__dir / "logconf.prod.json", substitutions)
+    elif mode == "development":
+      __conf = _load_config(__dir / "logconf.dev.json", substitutions)
+    elif mode == "testing":
+      __conf = _load_config(__dir / "logconf.test.json", substitutions)
+    else:
+      raise ValueError(f"Invalid mode: {mode}")
+
+  logging_config.dictConfig(config=__conf)
+  return logging.getLogger()