import { NextRequest, NextResponse } from 'next/server'
import { prisma } from '@/lib/prisma'
import { withCors } from '@/lib/middleware'

async function handleGetVersion(req: NextRequest) {
  try {
    const latestVersion = await prisma.version.findFirst({
      where: { isLatest: true }
    })
    
    if (!latestVersion) {
      return NextResponse.json({ error: 'No version found' }, { status: 404 })
    }

    const protocol = req.headers.get('x-forwarded-proto') || 'http'
    const host = req.headers.get('host')
    const downloadUrl = `${protocol}://${host}/downloads/${latestVersion.fileId}`
    
    return NextResponse.json({
      version: latestVersion.version,
      download_url: downloadUrl,
      checksum: latestVersion.checksum
    })
    
  } catch (error) {
    console.error('获取版本信息失败:', error)
    return NextResponse.json({ error: '获取版本信息失败' }, { status: 500 })
  }
}

export const GET = withCors(handleGetVersion)