From e302e9edd392ef3901ed96607dfffa829b8c3b74 Mon Sep 17 00:00:00 2001
From: Mubelotix <simon@meilisearch.com>
Date: Wed, 6 Aug 2025 15:02:15 +0200
Subject: [PATCH 1/2] Add test for task

---
 crates/meilisearch/tests/common/index.rs  |  5 ++
 crates/meilisearch/tests/settings/chat.rs | 66 +++++++++++++++++++++++
 crates/meilisearch/tests/settings/mod.rs  |  1 +
 3 files changed, 72 insertions(+)
 create mode 100644 crates/meilisearch/tests/settings/chat.rs

diff --git a/crates/meilisearch/tests/common/index.rs b/crates/meilisearch/tests/common/index.rs
index bb1506022..012c9bebe 100644
--- a/crates/meilisearch/tests/common/index.rs
+++ b/crates/meilisearch/tests/common/index.rs
@@ -249,6 +249,11 @@ impl<'a> Index<'a, Owned> {
         self.service.put_encoded(url, settings, self.encoder).await
     }
 
+    pub async fn update_settings_chat(&self, settings: Value) -> (Value, StatusCode) {
+        let url = format!("/indexes/{}/settings/chat", urlencode(self.uid.as_ref()));
+        self.service.patch_encoded(url, settings, self.encoder).await
+    }
+
     pub async fn delete_settings(&self) -> (Value, StatusCode) {
         let url = format!("/indexes/{}/settings", urlencode(self.uid.as_ref()));
         self.service.delete(url).await
diff --git a/crates/meilisearch/tests/settings/chat.rs b/crates/meilisearch/tests/settings/chat.rs
new file mode 100644
index 000000000..891a22431
--- /dev/null
+++ b/crates/meilisearch/tests/settings/chat.rs
@@ -0,0 +1,66 @@
+use crate::common::Server;
+use crate::json;
+use meili_snap::{json_string, snapshot};
+
+#[actix_rt::test]
+async fn set_reset_chat_issue_5772() {
+    let server = Server::new().await;
+    let index = server.unique_index();
+
+    let (_, code) = server
+        .set_features(json!({
+            "chatCompletions": true,
+        }))
+        .await;
+    snapshot!(code, @r#"200 OK"#);
+
+    let (task1, _code) = index.update_settings_chat(json!({
+        "description": "test!",
+        "documentTemplate": "{% for field in fields %}{% if field.is_searchable and field.value != nil %}{{ field.name }}: {{ field.value }}\n{% endif %}{% endfor %}",
+        "documentTemplateMaxBytes": 400,
+        "searchParameters": {
+            "limit": 15,
+            "sort": [],
+            "attributesToSearchOn": []
+        }
+    })).await;
+    server.wait_task(task1.uid()).await.succeeded();
+
+    let (response, _) = index.settings().await;
+    snapshot!(json_string!(response["chat"]), @r#"
+    {
+      "description": "test!",
+      "documentTemplate": "{% for field in fields %}{% if field.is_searchable and field.value != nil %}{{ field.name }}: {{ field.value }}\n{% endif %}{% endfor %}",
+      "documentTemplateMaxBytes": 400,
+      "searchParameters": {
+        "limit": 15,
+        "sort": [],
+        "attributesToSearchOn": []
+      }
+    }
+    "#);
+
+    let (task2, _status_code) = index.update_settings_chat(json!({
+        "description": "test!",
+        "documentTemplate": "{% for field in fields %}{% if field.is_searchable and field.value != nil %}{{ field.name }}: {{ field.value }}\n{% endif %}{% endfor %}",
+        "documentTemplateMaxBytes": 400,
+        "searchParameters": {
+            "limit": 16
+        }
+    })).await;
+    server.wait_task(task2.uid()).await.succeeded();
+
+    let (response, _) = index.settings().await;
+    snapshot!(json_string!(response["chat"]), @r#"
+    {
+      "description": "test!",
+      "documentTemplate": "{% for field in fields %}{% if field.is_searchable and field.value != nil %}{{ field.name }}: {{ field.value }}\n{% endif %}{% endfor %}",
+      "documentTemplateMaxBytes": 400,
+      "searchParameters": {
+        "limit": 16,
+        "sort": [],
+        "attributesToSearchOn": []
+      }
+    }
+    "#);
+}
diff --git a/crates/meilisearch/tests/settings/mod.rs b/crates/meilisearch/tests/settings/mod.rs
index 6b61e6be0..b3a956c25 100644
--- a/crates/meilisearch/tests/settings/mod.rs
+++ b/crates/meilisearch/tests/settings/mod.rs
@@ -1,3 +1,4 @@
+mod chat;
 mod distinct;
 mod errors;
 mod get_settings;

From 3ead985cafe2b4e095fd97f720f11441544c54ed Mon Sep 17 00:00:00 2001
From: Mubelotix <simon@meilisearch.com>
Date: Wed, 6 Aug 2025 15:02:25 +0200
Subject: [PATCH 2/2] Fix issue #5772

---
 crates/meilisearch/src/routes/indexes/settings.rs | 2 +-
 crates/meilisearch/tests/settings/get_settings.rs | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/crates/meilisearch/src/routes/indexes/settings.rs b/crates/meilisearch/src/routes/indexes/settings.rs
index 308977a6e..10120ebff 100644
--- a/crates/meilisearch/src/routes/indexes/settings.rs
+++ b/crates/meilisearch/src/routes/indexes/settings.rs
@@ -511,7 +511,7 @@ make_setting_routes!(
     },
     {
         route: "/chat",
-        update_verb: put,
+        update_verb: patch,
         value_type: ChatSettings,
         err_type: meilisearch_types::deserr::DeserrJsonError<
             meilisearch_types::error::deserr_codes::InvalidSettingsIndexChat,
diff --git a/crates/meilisearch/tests/settings/get_settings.rs b/crates/meilisearch/tests/settings/get_settings.rs
index f50f7f940..8419f640d 100644
--- a/crates/meilisearch/tests/settings/get_settings.rs
+++ b/crates/meilisearch/tests/settings/get_settings.rs
@@ -186,7 +186,7 @@ test_setting_routes!(
     },
     {
         setting: chat,
-        update_verb: put,
+        update_verb: patch,
         default_value: {
             "description": "",
             "documentTemplate": "{% for field in fields %}{% if field.is_searchable and field.value != nil %}{{ field.name }}: {{ field.value }}\n{% endif %}{% endfor %}",