portfolio/app/api/tech-stack/route.ts

import { NextRequest, NextResponse } from 'next/server';
import { getTechStack } from '@/lib/directus';
import { checkRateLimit, getClientIp } from '@/lib/auth';

export const runtime = 'nodejs';
export const dynamic = 'force-dynamic';

/**
 * GET /api/tech-stack
 * 
 * Loads Tech Stack from Directus with fallback to static data
 * 
 * Query params:
 *   - locale: en or de (default: en)
 */
export async function GET(request: NextRequest) {
  // Rate Limit: 60 requests per minute
  const ip = getClientIp(request);
  if (!checkRateLimit(ip, 60, 60000)) {
    return NextResponse.json({ error: 'Rate limit exceeded' }, { status: 429 });
  }

  try {
    const { searchParams } = new URL(request.url);
    const locale = searchParams.get('locale') || 'en';

    // Try to load from Directus
    const techStack = await getTechStack(locale);

    if (techStack && techStack.length > 0) {
      return NextResponse.json({
        techStack,
        source: 'directus'
      });
    }

    // Fallback: return empty (component will use hardcoded fallback)
    return NextResponse.json({
      techStack: null,
      source: 'fallback'
    });

  } catch (error) {
    console.error('Error loading tech stack:', error);
    return NextResponse.json(
      { 
        techStack: null, 
        error: 'Failed to load tech stack',
        source: 'error' 
      },
      { status: 500 }
    );
  }
}