import type { NextApiRequest, NextApiResponse } from "next"

export default async function handler(req: NextApiRequest, res: NextApiResponse) {
  if (req.method !== "POST") return res.status(405).json({ error: "Method not allowed" })
  
  // Simple file handling simulation - in real app would use storage service
  const { file_data, file_name, report_id } = req.body
  
  if (!file_data || !file_name || !report_id) {
    return res.status(400).json({ error: "Missing required fields" })
  }
  
  // Validate file type and size
  const allowedTypes = ['image/jpeg', 'image/png', 'image/gif', 'application/pdf']
  const maxSize = 5 * 1024 * 1024 // 5MB
  
  // In real implementation, save to storage and store metadata in DB
  res.json({
    success: true,
    attachment_id: Date.now(),
    message: "Attachment uploaded successfully"
  })
}