import { type NextRequest } from "next/server";
import { prisma } from "@/lib/prisma";
import { ok, errorResponse, requireRole, parseJson, ApiError } from "@/lib/api";
import { CreatePartSchema } from "@/lib/schemas";
import { audit } from "@/lib/audit";
import { clientIp } from "@/lib/request";

export async function GET(_req: NextRequest, ctx: { params: Promise<{ id: string }> }) {
  try {
    await requireRole("admin");
    const { id } = await ctx.params;
    const parts = await prisma.part.findMany({
      where: { assemblyId: id },
      orderBy: { code: "asc" },
      include: { _count: { select: { operations: true } } },
    });
    return ok({ parts });
  } catch (err) {
    return errorResponse(err);
  }
}

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, CreatePartSchema);

    const assembly = await prisma.assembly.findUnique({ where: { id } });
    if (!assembly) throw new ApiError(404, "not_found", "Assembly not found");

    const created = await prisma.part.create({
      data: {
        assemblyId: id,
        code: body.code,
        name: body.name,
        material: body.material ?? null,
        qty: body.qty,
        notes: body.notes ?? null,
      },
    });
    await audit({
      actorId: actor.id,
      action: "create",
      entity: "Part",
      entityId: created.id,
      after: created,
      ipAddress: clientIp(req),
    });
    return ok({ part: created }, { status: 201 });
  } catch (err) {
    return errorResponse(err);
  }
}