initial commit

frontend/src/app/services/agent-status.service.ts

@@ -0,0 +1,47 @@
+import { Injectable, signal } from '@angular/core';
+import { AgentCardData, AgentStatus, AgentStatusUpdate, TaskProgressUpdate } from '../models/agent.model';
+
+/**
+ * Agent Status Service — stub for future SignalR integration.
+ * Per spec Section 7.4: Connects to /hubs/agent-status for real-time updates.
+ *
+ * TODO: Implement SignalR hub connection when backend is ready.
+ * TODO: Wire up NgRx store or signals for reactive state management.
+ */
+@Injectable({ providedIn: 'root' })
+export class AgentStatusService {
+  /** Stub: list of agents (will come from SignalR) */
+  private readonly _agents = signal<AgentCardData[]>([]);
+
+  readonly agents = this._agents.asReadonly();
+
+  /** Stub: update an agent's status */
+  updateStatus(update: AgentStatusUpdate): void {
+    this._agents.update(agents =>
+      agents.map(agent =>
+        agent.id === update.agentId
+          ? { ...agent, status: update.status }
+          : agent
+      )
+    );
+  }
+
+  /** Stub: update an agent's task progress */
+  updateTaskProgress(progress: TaskProgressUpdate): void {
+    this._agents.update(agents =>
+      agents.map(agent =>
+        agent.id === progress.agentId
+          ? {
+              ...agent,
+              taskProgress: progress.progress,
+              ...(progress.taskName ? { currentTask: progress.taskName } : {}),
+              ...(progress.elapsed ? { taskElapsed: progress.elapsed } : {}),
+            }
+          : agent
+      )
+    );
+  }
+
+  // TODO: connect() — Initialize SignalR connection
+  // TODO: disconnect() — Clean up SignalR connection
+}