update(app): refactor commands

cli/main.py

@@ -1,3 +1,5 @@
+import os
+import configparser
 import click
 from .commands.metal import metal_nodes
 from .commands.vm import virtual_machines
@@ -5,13 +7,29 @@ from .commands.k8s import kubernetes_nodes
 from .commands.export import export_data
 from .visual import visual_dashboard
 
+# Default configuration file path
+CONFIG_FILE_PATH = os.path.expanduser("~/.config/metalcheck.conf")
+
+# Load configuration
+def load_config():
+    config = configparser.ConfigParser()
+    if os.path.exists(CONFIG_FILE_PATH):
+        config.read(CONFIG_FILE_PATH)
+    return config
 
 @click.group()
-def cli():
+@click.option("--base-url", help="Set the backend base URL.")
+@click.pass_context
+def cli(ctx, base_url):
     """
     Metal Check CLI: A command-line interface for managing and monitoring Metal Check resources.
     """
-    pass
+    config = load_config()
+
+    # Default backend URL
+    default_base_url = config.get("DEFAULT", "base_url", fallback="http://localhost:8000")
+    ctx.ensure_object(dict)
+    ctx.obj["BASE_URL"] = base_url or default_base_url
 
 # Register commands
 cli.add_command(metal_nodes, name="metal")