import { NextRequest, NextResponse } from 'next/server'
import { detectIsIntranet } from '@/lib/network-detection'

// GET 只提供前端自动分流所需的内外网判断，不返回代理头或客户端 IP 明细。
export async function GET(request: NextRequest) {
  try {
    const isIntranet = detectIsIntranet(request)

    return NextResponse.json({
      success: true,
      isIntranet,
      timestamp: new Date().toISOString(),
    }, {
      headers: { 'Cache-Control': 'no-store' },
    })
  } catch (error) {
    console.error('[Network Status] Error:', error)
    return NextResponse.json(
      { 
        success: false,
        error: '网络检测失败' 
      },
      { status: 500 }
    )
  }
}

export async function POST() {
  return NextResponse.json(
    { error: '该接口仅支持网络状态查询' },
    {
      status: 405,
      headers: {
        Allow: 'GET',
        'Cache-Control': 'no-store',
      },
    },
  )
}