feat: add search window (NIP-50) (#181)

* feat: add search window
* chore: improve search ui

src-tauri/src/nostr/event.rs

@@ -221,3 +221,26 @@ pub async fn repost(raw: &str, state: State<'_, Nostr>) -> Result<EventId, Strin
     Err("Repost failed".into())
   }
 }
+
+#[tauri::command]
+pub async fn search(
+  content: &str,
+  limit: usize,
+  state: State<'_, Nostr>,
+) -> Result<Vec<Event>, String> {
+  println!("search: {}", content);
+
+  let client = &state.client;
+  let filter = Filter::new()
+    .kinds(vec![Kind::TextNote, Kind::Metadata])
+    .search(content)
+    .limit(limit);
+
+  match client
+    .get_events_of(vec![filter], Some(Duration::from_secs(15)))
+    .await
+  {
+    Ok(events) => Ok(events),
+    Err(err) => Err(err.to_string()),
+  }
+}