1 files changed, 60 insertions, 0 deletions
diff --git a/third_party/rust/relevancy/src/rs.rs b/third_party/rust/relevancy/src/rs.rs
new file mode 100644
index 0000000000..bc8cc938e8
--- /dev/null
+++ b/third_party/rust/relevancy/src/rs.rs
@@ -0,0 +1,60 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+use crate::Result;
+use remote_settings::RemoteSettingsResponse;
+use serde::Deserialize;
+/// The Remote Settings collection name.
+pub(crate) const REMOTE_SETTINGS_COLLECTION: &str = "content-relevance";
+
+/// A trait for a client that downloads records from Remote Settings.
+///
+/// This trait lets tests use a mock client.
+pub(crate) trait RelevancyRemoteSettingsClient {
+    /// Fetches records from the Suggest Remote Settings collection.
+    fn get_records(&self) -> Result<RemoteSettingsResponse>;
+
+    /// Fetches a record's attachment from the Suggest Remote Settings
+    /// collection.
+    fn get_attachment(&self, location: &str) -> Result<Vec<u8>>;
+}
+
+impl RelevancyRemoteSettingsClient for remote_settings::Client {
+    fn get_records(&self) -> Result<RemoteSettingsResponse> {
+        Ok(remote_settings::Client::get_records(self)?)
+    }
+
+    fn get_attachment(&self, location: &str) -> Result<Vec<u8>> {
+        Ok(remote_settings::Client::get_attachment(self, location)?)
+    }
+}
+
+/// A record in the Relevancy Remote Settings collection.
+#[derive(Clone, Debug, Deserialize)]
+pub struct RelevancyRecord {
+    #[serde(rename = "type")]
+    pub record_type: String,
+    pub record_custom_details: RecordCustomDetails,
+}
+
+// Custom details related to category of the record.
+#[derive(Clone, Debug, Deserialize)]
+pub struct RecordCustomDetails {
+    pub category_to_domains: CategoryToDomains,
+}
+
+/// Category information related to the record.
+#[derive(Clone, Debug, Deserialize)]
+pub struct CategoryToDomains {
+    pub version: i32,
+    pub category: String,
+    pub category_code: i32,
+}
+
+/// A downloaded Remote Settings attachment that contains domain data.
+#[derive(Clone, Debug, Deserialize)]
+pub struct RelevancyAttachmentData {
+    pub domain: String,
+}