import { withAdmin } from '@/lib/api-handler'
import { apiError } from '@/lib/api-response'
import { PERMS } from '@/lib/permissions'
import { logAudit } from '@/lib/services/audit'
import { runSseBatch } from '@/lib/services/import/core/sse-batch'
import { ensurePetDirs, importSinglePet } from '@/lib/services/pet-import'

interface PetBatchItem {
  lib: string
}

export const POST = withAdmin({ permission: PERMS.ASSETS_IMPORT }, async (request, ctx) => {
  const body = await request.json()
  const rawItems: PetBatchItem[] = body.items || []
  const concurrency = body.concurrency || 3
  if (rawItems.length === 0) return apiError('No pets to import', 400)

  const seen = new Set<string>()
  const items = rawItems.filter((it) => {
    if (seen.has(it.lib)) return false
    seen.add(it.lib)
    return true
  })

  await ensurePetDirs()

  return runSseBatch<PetBatchItem>({
    items,
    concurrency,
    labelOf: (it) => it.lib,
    worker: async (it, _index, report) => {
      const r = await importSinglePet({ lib: it.lib, onProgress: report })
      if (r.ok) {
        logAudit({
          userId: ctx.session.user.id,
          action: 'pet_import',
          target: 'PetAsset',
          targetId: 0,
          after: { lib: it.lib, batch: true },
        })
      }
      return { ok: r.ok, warnings: r.warnings, error: r.error }
    },
  })
})