import { NextRequest, NextResponse } from 'next/server'
import { requireAuth } from '@/lib/auth'
import { generatePresignedUrl } from '@/lib/upload'

export async function GET(request: NextRequest) {
  try {
    const user = await requireAuth()
    const { searchParams } = new URL(request.url)

    const fileName = searchParams.get('fileName')
    const mimeType = searchParams.get('mimeType')
    const expiresIn = parseInt(searchParams.get('expiresIn') || '3600')

    if (!fileName || !mimeType) {
      return NextResponse.json(
        { error: 'fileName and mimeType are required' },
        { status: 400 }
      )
    }

    // Generate presigned URL
    const { url, key } = await generatePresignedUrl(fileName, mimeType, expiresIn)

    return NextResponse.json(
      {
        presignedUrl: url,
        key,
        expiresIn,
      },
      { status: 200 }
    )
  } catch (error) {
    console.error('Generate presigned URL error:', error)
    if (error instanceof Error && error.message === 'Unauthorized') {
      return NextResponse.json(
        { error: 'Unauthorized' },
        { status: 401 }
      )
    }
    return NextResponse.json(
      { error: 'Failed to generate presigned URL' },
      { status: 500 }
    )
  }
}