import { NextRequest, NextResponse } from 'next/server';
import juice from 'juice';

export async function POST(req: NextRequest) {
  try {
    const { html } = await req.json();

    if (!html) {
      return NextResponse.json({ error: 'HTML obsah je povinný.' }, { status: 400 });
    }

    const inlined = juice(html, {
      preserveMediaQueries: true,
      removeStyleTags: false,
      applyWidthAttributes: true,
      applyHeightAttributes: true
    });

    return NextResponse.json({ html: inlined });
  } catch (err: any) {
    console.error('Inlining error:', err);
    return NextResponse.json({ error: err.message }, { status: 500 });
  }
}