From 03f29dc0b8b357fb4c6eca44d8ed5ba0fa2097a5 Mon Sep 17 00:00:00 2001
From: =?utf8?q?Ale=C5=A1=20Mr=C3=A1zek?= <ales.mrazek@nic.cz>
Date: Thu, 6 Feb 2025 11:44:41 +0100
Subject: [PATCH] datamodel: local-data: added watchdog for RPZSchema

---
 doc/_static/config.schema.json                | 15 ++++++++
 .../datamodel/local_data_schema.py            | 37 +++++++++++++++----
 2 files changed, 44 insertions(+), 8 deletions(-)

diff --git a/doc/_static/config.schema.json b/doc/_static/config.schema.json
index 0bedbbc4e..754403734 100644
--- a/doc/_static/config.schema.json
+++ b/doc/_static/config.schema.json
@@ -928,6 +928,21 @@
                                 "type": "string",
                                 "description": "Path to the RPZ zone file."
                             },
+                            "watchdog": {
+                                "anyOf": [
+                                    {
+                                        "type": "string",
+                                        "enum": [
+                                            "auto"
+                                        ]
+                                    },
+                                    {
+                                        "type": "boolean"
+                                    }
+                                ],
+                                "description": "Enables files watchdog for configured RPZ file. Requires the optional 'watchdog' dependency.",
+                                "default": "auto"
+                            },
                             "tags": {
                                 "type": [
                                     "array",
diff --git a/python/knot_resolver/datamodel/local_data_schema.py b/python/knot_resolver/datamodel/local_data_schema.py
index ee2297784..8c2f97fdd 100644
--- a/python/knot_resolver/datamodel/local_data_schema.py
+++ b/python/knot_resolver/datamodel/local_data_schema.py
@@ -1,5 +1,6 @@
-from typing import Dict, List, Literal, Optional
+from typing import Any, Dict, List, Literal, Optional, Union
 
+from knot_resolver.constants import WATCHDOG_LIB
 from knot_resolver.datamodel.types import (
     DomainName,
     EscapedStr,
@@ -54,16 +55,36 @@ class RuleSchema(ConfigSchema):
 
 
 class RPZSchema(ConfigSchema):
-    """
-    Configuration or Response Policy Zone (RPZ).
+    class Raw(ConfigSchema):
+        """
+        Configuration or Response Policy Zone (RPZ).
 
-    ---
-    file: Path to the RPZ zone file.
-    tags: Tags to link with other policy rules.
-    """
+        ---
+        file: Path to the RPZ zone file.
+        watchdog: Enables files watchdog for configured RPZ file. Requires the optional 'watchdog' dependency.
+        tags: Tags to link with other policy rules.
+        """
+
+        file: ReadableFile
+        watchdog: Union[Literal["auto"], bool] = "auto"
+        tags: Optional[List[IDPattern]] = None
+
+    _LAYER = Raw
 
     file: ReadableFile
-    tags: Optional[List[IDPattern]] = None
+    watchdog: bool
+    tags: Optional[List[IDPattern]]
+
+    def _watchdog(self, obj: Raw) -> Any:
+        if obj.watchdog == "auto":
+            return WATCHDOG_LIB
+        return obj.watchdog
+
+    def _validate(self):
+        if self.watchdog and not WATCHDOG_LIB:
+            raise ValueError(
+                "'watchdog' is enabled, but the required 'watchdog' dependency (optional) is not installed"
+            )
 
 
 class LocalDataSchema(ConfigSchema):
-- 
2.47.2