/**
 * Version Approval History API Route
 */

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<{ versionId: string }> }
) {
  try {
    const { versionId } = await params

    const response = await fetch(
      `${BACKEND_URL}/api/consent/admin/versions/${versionId}/approval-history`,
      {
        method: 'GET',
        headers: {
          ...(request.headers.get('Authorization')
            ? { Authorization: request.headers.get('Authorization')! }
            : {}),
        },
        signal: AbortSignal.timeout(30000),
      }
    )

    if (!response.ok) {
      const errorText = await response.text()
      return NextResponse.json(
        { error: `Backend Error: ${response.status}`, details: errorText },
        { status: response.status }
      )
    }

    const data = await response.json()
    return NextResponse.json(data)
  } catch (error) {
    console.error('Approval history proxy error:', error)
    return NextResponse.json(
      { error: 'Verbindung zum Backend fehlgeschlagen' },
      { status: 503 }
    )
  }
}
