/**
 * Test Registry API Proxy
 *
 * Leitet Anfragen an das Python-Backend (Port 8000) weiter.
 * Vermeidet CORS-Probleme und ermoeglicht Server-Side Rendering.
 */

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

const BACKEND_URL = process.env.BACKEND_URL || 'http://localhost:8000'

export async function GET(
  request: NextRequest,
  { params }: { params: Promise<{ path: string[] }> }
) {
  const { path } = await params
  const pathStr = path.join('/')
  const url = new URL(request.url)
  const queryString = url.search

  try {
    const response = await fetch(`${BACKEND_URL}/api/tests/${pathStr}${queryString}`, {
      method: 'GET',
      headers: {
        'Content-Type': 'application/json',
      },
    })

    const data = await response.json()
    return NextResponse.json(data, { status: response.status })
  } catch (error) {
    console.error('Test Registry API proxy error:', error)
    return NextResponse.json(
      { error: 'Backend nicht erreichbar', demo: true },
      { status: 503 }
    )
  }
}

export async function POST(
  request: NextRequest,
  { params }: { params: Promise<{ path: string[] }> }
) {
  const { path } = await params
  const pathStr = path.join('/')

  try {
    let body = null
    const contentType = request.headers.get('content-type')
    if (contentType?.includes('application/json')) {
      try {
        body = await request.json()
      } catch {
        // Empty body is OK for some endpoints
      }
    }

    const response = await fetch(`${BACKEND_URL}/api/tests/${pathStr}`, {
      method: 'POST',
      headers: {
        'Content-Type': 'application/json',
      },
      body: body ? JSON.stringify(body) : undefined,
    })

    const data = await response.json()
    return NextResponse.json(data, { status: response.status })
  } catch (error) {
    console.error('Test Registry API proxy error:', error)
    return NextResponse.json(
      { error: 'Backend nicht erreichbar', demo: true },
      { status: 503 }
    )
  }
}