import { useUserStore } from '~~/stores/useUserStore'
import { useTestDataApi } from '~/composables/testing/useTestDataApi'

/**
 * TESTING-ONLY FEATURE
 *
 * One-click duplicator for the seeded demo application form "SAP S/4HANA".
 *
 * This version uses a dedicated backend endpoint to ensure reliability:
 * 1. Loads the seeded YAML on the backend.
 * 2. Creates a fresh ApplicationForm entity with new IDs.
 * 3. Sets current user as creator.
 * 4. Assigns the form to the currently selected organization.
 */
export function useSeededSapS4HanaDuplicator() {
  const { t } = useI18n()
  const logger = useLogger().withTag('seeded-sap-duplicator')
  const toast = useToast()

  const { canWriteApplicationForms } = usePermissions()
  const userStore = useUserStore()
  const { selectedOrganization } = storeToRefs(userStore)

  const isDuplicating = ref(false)

  const showButton = computed(() => canWriteApplicationForms.value)

  async function duplicateSapS4HanaForTesting() {
    if (isDuplicating.value) return

    const organizationId = selectedOrganization.value?.id
    if (!organizationId) {
      toast.add({
        title: t('common.error'),
        description: 'Please select an organization first.',
        color: 'error'
      })
      return
    }

    isDuplicating.value = true
    try {
      const { createTestDataApplicationForm } = useTestDataApi()

      const created = await createTestDataApplicationForm(organizationId)

      toast.add({
        title: t('common.success'),
        description: 'Created a new test application form.',
        color: 'success'
      })

      if (created?.id) {
        await navigateTo(`/application-forms/${created.id}/0`)
      }
    } catch (e: unknown) {
      logger.error('Failed creating test application form via backend:', e)
      toast.add({
        title: t('common.error'),
        description: 'Failed to create test application form. Check backend logs.',
        color: 'error'
      })
    } finally {
      isDuplicating.value = false
    }
  }

  return {
    showButton,
    isDuplicating,
    duplicateSapS4HanaForTesting
  }
}