import { type NextRequest } from "next/server";
import { ok, errorResponse, requireRole, parseJson } from "@/lib/api";
import { DuplicatePartSchema } from "@/lib/schemas";
import { audit } from "@/lib/audit";
import { clientIp } from "@/lib/request";
import { duplicatePart } from "@/lib/duplicate";

/**
 * Admin-only. Clone a Part into its existing assembly with a new `code`
 * (and optionally a new `name`). By default every Operation is cloned too —
 * with fresh qrTokens, reset to `pending` status and zero units. Useful for
 * spinning up a left/right variant, or re-running a completed part.
 *
 * Not used for cross-assembly / cross-project moves — admin can edit the
 * code / qty / notes on the copy afterwards.
 */
export async function POST(req: NextRequest, ctx: { params: Promise<{ id: string }> }) {
  try {
    const actor = await requireRole("admin");
    const { id } = await ctx.params;
    const body = await parseJson(req, DuplicatePartSchema);

    const result = await duplicatePart({
      sourcePartId: id,
      code: body.code,
      name: body.name,
      includeOperations: body.includeOperations ?? true,
    });

    await audit({
      actorId: actor.id,
      action: "duplicate",
      entity: "Part",
      entityId: result.id,
      after: { sourcePartId: id, ...result },
      ipAddress: clientIp(req),
    });
    return ok({ part: { id: result.id }, operationsCopied: result.operationsCopied }, { status: 201 });
  } catch (err) {
    return errorResponse(err);
  }
}