feat: show project and workspace activity indicators

src/server/activity/workspaceActivityService.test.ts

@@ -0,0 +1,50 @@
+import { describe, expect, it } from "vitest";
+import type { RealtimeEvent, SessionStatus } from "../../shared/apiTypes";
+import { WorkspaceActivityService } from "./workspaceActivityService";
+
+function status(patch: Partial<SessionStatus> = {}): SessionStatus {
+  return {
+    sessionId: "s1",
+    isStreaming: false,
+    isCompacting: false,
+    isBashRunning: false,
+    pendingMessageCount: 0,
+    queuedMessages: [],
+    tokens: { input: 0, output: 0, cacheRead: 0, cacheWrite: 0, total: 0 },
+    cost: 0,
+    ...patch,
+  };
+}
+
+describe("WorkspaceActivityService", () => {
+  it("publishes and snapshots session activity by cwd", () => {
+    const events: RealtimeEvent[] = [];
+    const service = new WorkspaceActivityService({ publishRealtime: (event) => events.push(event) });
+
+    service.applySessionStatus("/repo", status({ isStreaming: true }));
+
+    expect(service.snapshot().workspaces).toMatchObject([{ cwd: "/repo", hasSessionActivity: true, hasTerminalActivity: false }]);
+    expect(events.at(-1)).toMatchObject({ type: "workspace.activity", activity: { cwd: "/repo", hasSessionActivity: true, hasTerminalActivity: false } });
+
+    service.applySessionStatus("/repo", status({ isStreaming: false }));
+
+    expect(service.snapshot().workspaces).toEqual([]);
+    expect(events.at(-1)).toMatchObject({ type: "workspace.activity", activity: { cwd: "/repo", hasSessionActivity: false, hasTerminalActivity: false } });
+  });
+
+  it("combines sessions and terminals and clears closed terminals", () => {
+    const events: RealtimeEvent[] = [];
+    const service = new WorkspaceActivityService({ publishRealtime: (event) => events.push(event) });
+
+    service.applySessionActivity("/repo", { sessionId: "s1", phase: "active", label: "running tool", detail: "read", at: "now" });
+    service.updateTerminal({ id: "t1", cwd: "/repo", exited: false });
+
+    expect(service.snapshot().workspaces).toMatchObject([{ cwd: "/repo", hasSessionActivity: true, hasTerminalActivity: true }]);
+
+    service.removeSession("s1");
+    service.updateTerminal({ id: "t1", cwd: "/repo", exited: true });
+
+    expect(service.snapshot().workspaces).toEqual([]);
+    expect(events.at(-1)).toMatchObject({ type: "workspace.activity", activity: { cwd: "/repo", hasSessionActivity: false, hasTerminalActivity: false } });
+  });
+});