import { requireAuth } from '~/server/utils/auth'
import { users, canvases, pushSubscriptions } from '~/server/utils/db'

export default defineEventHandler(async (event) => {
  const user = requireAuth(event)
  if (user.role !== 'admin') {
    throw createError({ statusCode: 403, message: 'Admin access required' })
  }

  const usersList = Array.from(users.values())
  const canvasesList = Array.from(canvases.values()).map(c => ({
    id: c.id,
    name: c.name,
    nodeCount: c.nodes.length,
    updatedAt: c.updatedAt
  }))

  return {
    users: usersList,
    canvases: canvasesList,
    stats: {
      users: usersList.length,
      canvases: canvasesList.length,
      nodes: canvasesList.reduce((sum, c) => sum + c.nodeCount, 0),
      pushes: pushSubscriptions.size
    }
  }
})