Live sync KV stores over Iroh

crates/geth-store/src/lib.rs

@@ -335,6 +335,21 @@ impl Store {
         }
     }
 
+    pub fn list_kv_stores(&self) -> Result<Vec<StoredKvStore>, StoreError> {
+        let mut stmt = self
+            .conn
+            .prepare("SELECT kv_id, resource_id, name FROM kv_stores ORDER BY name")?;
+        let rows = stmt.query_map([], |row| {
+            Ok(StoredKvStore {
+                kv_id: row.get(0)?,
+                resource_id: row.get(1)?,
+                name: row.get(2)?,
+            })
+        })?;
+        rows.collect::<Result<Vec<_>, _>>()
+            .map_err(StoreError::from)
+    }
+
     pub fn set_kv_entry(&self, entry: &StoredKvEntry) -> Result<(), StoreError> {
         self.conn.execute(
             r#"INSERT OR REPLACE INTO kv_entries(kv_id, key, value, updated_at_ms)
@@ -366,6 +381,29 @@ impl Store {
         }
     }
 
+    pub fn list_kv_entries_since(
+        &self,
+        kv_id: &str,
+        since_ms: i64,
+    ) -> Result<Vec<StoredKvEntry>, StoreError> {
+        let mut stmt = self.conn.prepare(
+            r#"SELECT kv_id, key, value, updated_at_ms
+               FROM kv_entries
+               WHERE kv_id = ?1 AND updated_at_ms >= ?2
+               ORDER BY updated_at_ms, key"#,
+        )?;
+        let rows = stmt.query_map(params![kv_id, since_ms], |row| {
+            Ok(StoredKvEntry {
+                kv_id: row.get(0)?,
+                key: row.get(1)?,
+                value: row.get(2)?,
+                updated_at_ms: row.get(3)?,
+            })
+        })?;
+        rows.collect::<Result<Vec<_>, _>>()
+            .map_err(StoreError::from)
+    }
+
     pub fn insert_document_resource(
         &self,
         document: &StoredDocumentResource,
@@ -1518,6 +1556,7 @@ mod tests {
             store.get_kv_store_by_name("prefs").expect("get kv"),
             Some(kv.clone())
         );
+        assert_eq!(store.list_kv_stores().expect("list kv"), vec![kv.clone()]);
 
         let entry = StoredKvEntry {
             kv_id: kv.kv_id.clone(),
@@ -1530,7 +1569,13 @@ mod tests {
             store
                 .get_kv_entry("kv:prefs", "apps/foo/theme")
                 .expect("get entry"),
-            Some(entry)
+            Some(entry.clone())
+        );
+        assert_eq!(
+            store
+                .list_kv_entries_since("kv:prefs", 1)
+                .expect("list entries since"),
+            vec![entry]
         );
     }