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 };
    },
  });
});