import type { Capability } from '@feltdb/core';
import { auditEvents, type AuditEvent } from '../src/feltdb';

export interface ActivitySummary { summary: string; total: number; actions: string[] }

export const activitySummary: Capability = {
  id: 'activity-summary',
  name: 'Activity summary',
  async execute(): Promise<ActivitySummary> {
    const events = (await auditEvents.all() as AuditEvent[]).slice(-20);
    const actions = [...new Set(events.map(event => event.action))];
    return { total: events.length, actions, summary: events.length ? `${events.length} recent events across ${actions.length} action types: ${actions.join(', ')}.` : 'No application activity has been recorded yet.' };
  },
};