fix(gui): move heavy processing from render loop to controller - gui only visualizes state

src/app_controller.py

@@ -146,6 +146,7 @@ class AppController:
   self.mma_status: str = "idle"
   self._tool_log: List[Dict[str, Any]] = []
   self._tool_stats: Dict[str, Dict[str, Any]] = {}  # {tool_name: {"count": 0, "total_time_ms": 0.0, "failures": 0}}
+  self._cached_cache_stats: Dict[str, Any] = {}  # Pre-computed cache stats for GUI
   self._comms_log: List[Dict[str, Any]] = []
   self.session_usage: Dict[str, Any] = {
    "input_tokens": 0,
@@ -1740,6 +1741,17 @@ class AppController:
    count = cache_stats.get("cache_count", 0)
    size_bytes = cache_stats.get("total_size_bytes", 0)
    self._gemini_cache_text = f"Gemini Caches: {count} ({size_bytes / 1024:.1f} KB)"
+  self._update_cached_stats()
+
+ def _update_cached_stats(self) -> None:
+  import ai_client
+  self._cached_cache_stats = ai_client.get_gemini_cache_stats()
+  self._cached_tool_stats = dict(self._tool_stats)
+
+ def clear_cache(self) -> None:
+  import ai_client
+  ai_client.cleanup()
+  self._update_cached_stats()
 
  def _flush_to_project(self) -> None:
   proj = self.project

src/gui_2.py

@@ -1433,38 +1433,22 @@ class App:
       imgui.text_disabled(f"  [{role}] ~{toks:,} tokens")
       shown += 1
   imgui.separator()
-  if ai_client._provider == "gemini":
-   if ai_client._gemini_cache is not None:
-    age = time.time() - (ai_client._gemini_cache_created_at or time.time())
-    ttl = ai_client._GEMINI_CACHE_TTL
-    imgui.text_colored(C_LBL, f"Gemini Cache: ACTIVE | Age: {age:.0f}s / {ttl}s | Renews at: {ttl * 0.9:.0f}s")
-   else:
-    imgui.text_disabled("Gemini Cache: INACTIVE")
-  elif ai_client._provider == "anthropic":
-   with ai_client._anthropic_history_lock:
-    turns = len(ai_client._anthropic_history)
-   cache_reads = 0
-   for entry in reversed(ai_client.get_comms_log()):
-    if entry.get("kind") == "response":
-     cache_reads = (entry.get("payload") or {}).get("usage", {}).get("cache_read_input_tokens") or 0
-     break
-   imgui.text_disabled("Anthropic: 4-breakpoint ephemeral caching (auto-managed)")
-   imgui.text_disabled(f"  {turns} history turns | Cache reads last call: {cache_reads:,}")
+  cache_stats = getattr(self.controller, '_cached_cache_stats', {})
+  if cache_stats.get("cache_exists"):
+   age = cache_stats.get("cache_age_seconds", 0)
+   ttl = cache_stats.get("ttl_seconds", 3600)
+   imgui.text_colored(C_LBL, f"Gemini Cache: ACTIVE | Age: {age:.0f}s / {ttl}s | Renews at: {ttl * 0.9:.0f}s")
+  else:
+   imgui.text_disabled("Gemini Cache: INACTIVE")
 
  def _render_cache_panel(self) -> None:
   if self.current_provider != "gemini":
    return
   if not imgui.collapsing_header("Cache Analytics"):
    return
-  now = time.time()
-  if not hasattr(self, '_cache_stats_cache_time') or now - self._cache_stats_cache_time > 1.0:
-   self._cached_cache_stats = ai_client.get_gemini_cache_stats()
-   self._cache_stats_cache_time = now
-  stats = self._cached_cache_stats
+  stats = getattr(self.controller, '_cached_cache_stats', {})
   if not stats.get("cache_exists"):
    imgui.text_disabled("No active cache")
-   if imgui.button("Force Cache"):
-    pass
    return
   age_sec = stats.get("cache_age_seconds", 0)
   ttl_remaining = stats.get("ttl_remaining", 0)
@@ -1483,7 +1467,7 @@ class App:
   imgui.progress_bar(ttl_pct / 100.0, imgui.ImVec2(-1, 0), f"{ttl_pct:.0f}%")
   imgui.pop_style_color()
   if imgui.button("Clear Cache"):
-   ai_client.cleanup()
+   self.controller.clear_cache()
    self._cache_cleared_timestamp = time.time()
   if hasattr(self, '_cache_cleared_timestamp') and time.time() - self._cache_cleared_timestamp < 5:
    imgui.text_colored(imgui.ImVec4(0.2, 1.0, 0.2, 1.0), "Cache cleared - will rebuild on next request")
@@ -1494,8 +1478,7 @@ class App:
   now = time.time()
   if not hasattr(self, '_tool_stats_cache_time') or now - self._tool_stats_cache_time > 1.0:
    self._cached_tool_stats = getattr(self.controller, '_tool_stats', {})
-   self._tool_stats_cache_time = now
-  tool_stats = getattr(self, '_cached_tool_stats', {})
+  tool_stats = getattr(self.controller, '_cached_tool_stats', {})
   if not tool_stats:
    imgui.text_disabled("No tool usage data")
    return