TUI: waiting shimmer helper + tests

src/tui/tui.ts

@@ -22,6 +22,7 @@ import { editorTheme, theme } from "./theme/theme.js";
 import { createCommandHandlers } from "./tui-command-handlers.js";
 import { createEventHandlers } from "./tui-event-handlers.js";
 import { formatTokens } from "./tui-formatters.js";
+import { buildWaitingStatusMessage } from "./tui-waiting.js";
 import { createOverlayHandlers } from "./tui-overlays.js";
 import { createSessionActions } from "./tui-session-actions.js";
 import type {
@@ -286,49 +287,23 @@ export async function runTui(opts: TuiOptions) {
     statusContainer.addChild(statusLoader);
   };
 
-  const waitingPhrases = [
-    "flibbertigibbeting",
-    "kerfuffling",
-    "dillydallying",
-    "twiddling thumbs",
-    "noodling",
-    "bamboozling",
-    "moseying",
-    "hobnobbing",
-    "pondering",
-    "conjuring",
-    "vibing",
-    "clawding",
-  ];
-
   let waitingTick = 0;
   let waitingTimer: NodeJS.Timeout | null = null;
 
-  const shimmerWaitingText = (text: string, tick: number) => {
-    const width = 6;
-    const hi = (ch: string) => theme.bold(theme.accentSoft(ch));
-
-    const pos = tick % (text.length + width);
-    const start = Math.max(0, pos - width);
-    const end = Math.min(text.length - 1, pos);
-
-    let out = "";
-    for (let i = 0; i < text.length; i++) {
-      const ch = text[i];
-      out += i >= start && i <= end ? hi(ch) : theme.dim(ch);
-    }
-    return out;
-  };
-
   const updateBusyStatusMessage = () => {
     if (!statusLoader || !statusStartedAt) return;
     const elapsed = formatElapsed(statusStartedAt);
 
     if (activityStatus === "waiting") {
       waitingTick++;
-      const phrase = waitingPhrases[Math.floor(waitingTick / 10) % waitingPhrases.length];
-      const cute = shimmerWaitingText(`${phrase}…`, waitingTick);
-      statusLoader.setMessage(`${cute} • ${elapsed} | ${connectionStatus}`);
+      statusLoader.setMessage(
+        buildWaitingStatusMessage({
+          theme,
+          tick: waitingTick,
+          elapsed,
+          connectionStatus,
+        }),
+      );
       return;
     }