fix,feat: mention behavior and page titles

src/switchboard.rs

@@ -74,7 +74,7 @@ impl MentionHost<'_> {
 }
 
 impl Switchboard {
-    pub async fn new(pool: &SqlitePool) -> Result<Self, AppError> {
+    pub async fn gen_trie(pool: &SqlitePool) -> Result<radix_trie::Trie<String,String>, AppError> {
         let mut trie = radix_trie::Trie::new();
 
         let mentionables = sqlx::query_as!(
@@ -92,9 +92,23 @@ impl Switchboard {
             trie.insert(mentionable.text, mentionable.uri);
         }
 
+        Ok(trie)
+    }
+
+    pub async fn new(pool: &SqlitePool) -> Result<Self, AppError> {
+        let trie = Self::gen_trie(pool).await?;
         Ok(Switchboard { trie })
     }
 
+    pub fn check_and_assign(self: &mut Self, trie: radix_trie::Trie<String, String>) -> bool {
+        if trie != self.trie {
+            self.trie = trie;
+            true
+        } else {
+            false
+        }
+    }
+
     pub fn remove(self: &mut Self, text: &String) {
         self.trie.remove(text);
     }