import { computed } from 'vue'
import { useAuthStore } from '@/stores/auth'
import { useSimulationStore } from '@/stores/simulation'

/**
 * Feature-detects in-app simulation via GET /api/v1/simulation/config.
 * Fail-closed: any error leaves simulationStore.enabled = false.
 */
export function useSimulationAvailable() {
  const auth = useAuthStore()
  const simulation = useSimulationStore()

  const available = computed(() => simulation.enabled)

  async function detect() {
    if (!auth.isAuthenticated) {
      simulation.enabled = false
      return false
    }
    await simulation.loadConfig()
    return simulation.enabled
  }

  return { available, detect }
}