feat: show todo progress in Herdr sidebar

src/herdr.ts

@@ -1,10 +1,11 @@
 import net from "node:net";
 import type { Task } from "./types.ts";
-import { orderedTreeRows } from "./ui.ts";
+import { orderedTreeRows, snapshotStats } from "./ui.ts";
 
 const SOURCE = "pi-todo-herdr";
 const TASK_TOKEN = "task";
 const COUNT_TOKEN = "task_count";
+const PROGRESS_TOKEN = "task_progress";
 let reportSeq = Date.now() * 1000;
 
 function nextSeq(): number {
@@ -27,6 +28,7 @@ function hasDescendantWithStatus(task: Task, status: Task["status"], byId: Map<n
 
 export function currentTaskTokens(tasks: Task[]): Record<string, string | null> {
   const byId = new Map(tasks.map((task) => [task.id, task]));
+  const stats = snapshotStats(tasks);
   const ordered = orderedTreeRows(tasks).map(({ task }) => task);
   const inProgress = ordered.filter(
     (task) => task.status === "in-progress" && !hasDescendantWithStatus(task, "in-progress", byId),
@@ -38,6 +40,7 @@ export function currentTaskTokens(tasks: Task[]): Record<string, string | null>
   return {
     [TASK_TOKEN]: candidates.length > 0 ? `#${candidates[0]!.id} ${candidates[0]!.name}` : null,
     [COUNT_TOKEN]: candidates.length > 1 ? `+${candidates.length - 1}` : null,
+    [PROGRESS_TOKEN]: stats.total > 0 ? `${stats.done}/${stats.total}` : null,
   };
 }
 
@@ -97,5 +100,5 @@ export function reportCurrentTask(tasks: Task[]): Promise<void> {
 }
 
 export function clearCurrentTask(): Promise<void> {
-  return reportTokens({ [TASK_TOKEN]: null, [COUNT_TOKEN]: null });
+  return reportTokens({ [TASK_TOKEN]: null, [COUNT_TOKEN]: null, [PROGRESS_TOKEN]: null });
 }