dave: refactor a bit

pulling tokens isn't really a part of rendering,
so let's pull that out

Signed-off-by: William Casarin <jb55@jb55.com>

crates/notedeck_dave/src/lib.rs

@@ -97,9 +97,14 @@ You are an AI agent for the nostr protocol called Dave, created by Damus. nostr
         }
     }
 
-    fn render(&mut self, app_ctx: &AppContext, ui: &mut egui::Ui) {
+    /// Process incoming tokens from the ai backend
+    fn process_events(&mut self, app_ctx: &AppContext) -> bool {
         let mut should_send = false;
-        if let Some(recvr) = &self.incoming_tokens {
+
+        let Some(recvr) = &self.incoming_tokens else {
+            return should_send;
+        };
+
         while let Ok(res) = recvr.try_recv() {
             if let Some(avatar) = &mut self.avatar {
                 avatar.random_nudge();
@@ -133,8 +138,11 @@ You are an AI agent for the nostr protocol called Dave, created by Damus. nostr
                 }
             }
         }
+
+        should_send
     }
 
+    fn render(&mut self, app_ctx: &AppContext, ui: &mut egui::Ui) {
         // Scroll area for chat messages
         egui::Frame::new()
             .inner_margin(egui::Margin {
@@ -150,26 +158,11 @@ You are an AI agent for the nostr protocol called Dave, created by Damus. nostr
                     .show(ui, |ui| {
                         ui.vertical(|ui| {
                             self.render_chat(ui);
-
-                            self.inputbox(app_ctx, ui);
                         })
                     });
+
+                self.inputbox(app_ctx, ui);
             });
-
-        /*
-        // he lives in the sidebar now
-        if let Some(avatar) = &mut self.avatar {
-            let avatar_size = Vec2::splat(300.0);
-            let pos = Vec2::splat(100.0).to_pos2();
-            let pos = Rect::from_min_max(pos, pos + avatar_size);
-            avatar.render(pos, ui);
-        }
-        */
-
-        // send again
-        if should_send {
-            self.send_user_message(app_ctx, ui.ctx());
-        }
     }
 
     fn render_chat(&self, ui: &mut egui::Ui) {
@@ -388,6 +381,10 @@ impl notedeck::App for Dave {
         */
 
         //update_dave(self, ctx, ui.ctx());
+        let should_send = self.process_events(ctx);
         self.render(ctx, ui);
+        if should_send {
+            self.send_user_message(ctx, ui.ctx());
+        }
     }
 }