feat(analyzer): load config using shared helpers

- make rabbitmq config optional

analyzer/libretime_analyzer/main.py

@@ -6,13 +6,12 @@ from libretime_shared.app import AbstractApp
 from libretime_shared.cli import cli_config_options, cli_logging_options
 from libretime_shared.config import DEFAULT_ENV_PREFIX
 
-from .config_file import read_config_file
+from .config import Config
 from .message_listener import MessageListener
 from .status_reporter import StatusReporter
 
 VERSION = "1.0"
 
-DEFAULT_LIBRETIME_CONFIG_FILEPATH = Path("/etc/airtime/airtime.conf")
 DEFAULT_RETRY_QUEUE_FILEPATH = Path("retry_queue")
 
 
@@ -38,8 +37,7 @@ def cli(
     Analyzer(
         log_level=log_level,
         log_filepath=log_filepath,
-        # Handle default until the config file can be optional
-        config_filepath=config_filepath or DEFAULT_LIBRETIME_CONFIG_FILEPATH,
+        config_filepath=config_filepath,
         retry_queue_filepath=retry_queue_filepath,
     )
 
@@ -56,14 +54,13 @@ class Analyzer(AbstractApp):
     ):
         super().__init__(**kwargs)
 
-        # Read our rmq config file
-        rmq_config = read_config_file(config_filepath)
+        config = Config(filepath=config_filepath)
 
         # Start up the StatusReporter process
         StatusReporter.start_thread(retry_queue_filepath)
 
         # Start listening for RabbitMQ messages telling us about newly
         # uploaded files. This blocks until we receive a shutdown signal.
-        self._msg_listener = MessageListener(rmq_config)
+        self._msg_listener = MessageListener(config.rabbitmq)
 
         StatusReporter.stop_thread()