feat: expose bot task progress

src/acp/client.ts

@@ -7,6 +7,7 @@ import type { PermissionPolicy } from "../config.js";
 export interface AcpClientOptions {
   initializeTimeoutMs: number;
   policy: PermissionPolicy;
+  onSessionActivity?: () => void;
 }
 
 export class AcpClient {
@@ -47,19 +48,24 @@ export class AcpClient {
   async resumeSession(sessionId: string, cwd: string): Promise<void> {
     this.collecting = false;
     this.chunks = [];
-    if (this.capabilities.sessionCapabilities?.resume) {
-      try {
-        await this.connection.agent.request(acp.methods.agent.session.resume, { sessionId, cwd, mcpServers: [] });
-      } catch (error) {
-        if (!this.capabilities.loadSession) throw error;
-        await this.connection.agent.request(acp.methods.agent.session.load, { sessionId, cwd, mcpServers: [] });
-      }
-    } else if (this.capabilities.loadSession) {
-      await this.connection.agent.request(acp.methods.agent.session.load, { sessionId, cwd, mcpServers: [] });
-    } else {
-      throw new Error("ACP backend cannot resume or load sessions");
-    }
     this.activeSessionId = sessionId;
+    try {
+      if (this.capabilities.sessionCapabilities?.resume) {
+        try {
+          await this.connection.agent.request(acp.methods.agent.session.resume, { sessionId, cwd, mcpServers: [] });
+        } catch (error) {
+          if (!this.capabilities.loadSession) throw error;
+          await this.connection.agent.request(acp.methods.agent.session.load, { sessionId, cwd, mcpServers: [] });
+        }
+      } else if (this.capabilities.loadSession) {
+        await this.connection.agent.request(acp.methods.agent.session.load, { sessionId, cwd, mcpServers: [] });
+      } else {
+        throw new Error("ACP backend cannot resume or load sessions");
+      }
+    } catch (error) {
+      this.activeSessionId = undefined;
+      throw error;
+    }
     this.chunks = [];
   }
 
@@ -91,7 +97,9 @@ export class AcpClient {
   close(error?: unknown): void { this.connection.close(error); }
 
   private handleUpdate(notification: SessionNotification): void {
-    if (!this.collecting || notification.sessionId !== this.activeSessionId) return;
+    if (notification.sessionId !== this.activeSessionId) return;
+    this.options.onSessionActivity?.();
+    if (!this.collecting) return;
     const update = notification.update;
     if (update.sessionUpdate === "agent_message_chunk" && update.content.type === "text") this.chunks.push(update.content.text);
   }