Added changes to support OSPFv3_area ansible (ansible-collections#540)

* Added changes to support OSPFv3_area ansible

* Adding check mode and changing delete all URLs

* Sanity fix

* Addressing review comments

* Refactoring deleted and replace/override

* Addressing advertise default value

* Addressing delete ranges

* Update plugins/modules/sonic_ospfv3_area.py

* Update plugins/modules/sonic_ospfv3_area.py

* Update plugins/modules/sonic_ospfv3_area.py

* Apply suggestion from @stalabi1

---------

Co-authored-by: stalabi1 <54641848+stalabi1@users.noreply.github.com>

Author: santhosh-kt

meta/runtime.yml

@@ -104,10 +104,12 @@ plugin_routing:
       redirect: dellemc.enterprise_sonic.sonic_ospf_area
     ospfv2:
       redirect: dellemc.enterprise_sonic.sonic_ospfv2
-    ospfv3:
-      redirect: dellemc.enterprise_sonic.sonic_ospfv3
     ospfv2_interfaces:
       redirect: dellemc.enterprise_sonic.sonic_ospfv2_interfaces
+    ospfv3:
+      redirect: dellemc.enterprise_sonic.sonic_ospfv3
+    ospfv3_area:
+      redirect: dellemc.enterprise_sonic.sonic_ospfv3_area
     ospfv3_interfaces:
       redirect: dellemc.enterprise_sonic.sonic_ospfv3_interfaces
     pim_global:

plugins/action/ospfv3_area.py

@@ -0,0 +1 @@
+sonic.py

plugins/module_utils/network/sonic/argspec/facts/facts.py

@@ -37,6 +37,7 @@ def __init__(self, **kwargs):
         'ospfv2_interfaces',
         'ospfv2',
         'ospfv3',
+        'ospfv3_area',
         'ospfv3_interfaces',
         'mclag',
         'prefix_lists',

plugins/module_utils/network/sonic/argspec/ospfv3_area/__init__.py

@@ -0,0 +1,80 @@
+#
+# -*- coding: utf-8 -*-
+# Copyright 2025 Dell Inc. or its subsidiaries. All Rights Reserved
+# GNU General Public License v3.0+
+# (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
+
+
+"""
+The arg spec for the sonic_ospfv3_area module
+"""
+from __future__ import absolute_import, division, print_function
+__metaclass__ = type
+
+
+class Ospfv3_areaArgs(object):  # pylint: disable=R0903
+    """The arg spec for the sonic_ospfv3_area module
+    """
+
+    def __init__(self, **kwargs):
+        pass
+
+    argument_spec = {
+        'config': {
+            'elements': 'dict',
+            'mutually_exclusive': [['stub', 'nssa']],
+            'options': {
+                'area_id': {'required': True, 'type': 'str'},
+                'filter_list_in': {'type': 'str'},
+                'filter_list_out': {'type': 'str'},
+                'nssa': {
+                    'mutually_exclusive': [['no_summary', 'default_originate']],
+                    'options': {
+                        'enabled': {'required': True, 'type': 'bool'},
+                        'default_originate': {
+                            'type': 'dict',
+                            'options': {
+                                'enabled': {'required': True, 'type': 'bool'},
+                                'metric': {'type': 'int'},
+                                'metric_type': {'type': 'int', 'choices': [1, 2]}
+                            }
+                        },
+                        'no_summary': {'type': 'bool'},
+                        'ranges': {
+                            'elements': 'dict',
+                            'options': {
+                                'advertise': {'type': 'bool'},
+                                'cost': {'type': 'int'},
+                                'prefix': {'required': True, 'type': 'str'}
+                            },
+                            'type': 'list'
+                        }
+                    },
+                    'type': 'dict'
+                },
+                'ranges': {
+                    'elements': 'dict',
+                    'options': {
+                        'advertise': {'type': 'bool'},
+                        'cost': {'type': 'int'},
+                        'prefix': {'required': True, 'type': 'str'}
+                    },
+                    'type': 'list'
+                },
+                'stub': {
+                    'options': {
+                        'enabled': {'required': True, 'type': 'bool'},
+                        'no_summary': {'type': 'bool'}
+                    },
+                    'type': 'dict'
+                },
+                'vrf_name': {'required': True, 'type': 'str'},
+            },
+            'type': 'list'
+        },
+        'state': {
+            'choices': ['merged', 'replaced', 'overridden', 'deleted'],
+            'default': 'merged',
+            'type': 'str'
+        }
+    }  # pylint: disable=C0301