import type { NextApiRequest, NextApiResponse } from 'next'
import { prisma } from '@/lib/prisma'
import { requireAuth, logAction } from '@/lib/auth'

export default async function handler(req: NextApiRequest, res: NextApiResponse) {
  const user = await requireAuth(req, res, ['ADMIN'])
  if (!user) return
  if (req.method !== 'POST') return res.status(405).end()

  const { id } = req.query as { id: string }

  const source = await prisma.buildForm.findUnique({
    where: { id },
    include: { fields: { orderBy: { order: 'asc' } } },
  })
  if (!source) return res.status(404).json({ error: 'Form not found' })

  const clone = await prisma.buildForm.create({
    data: {
      name: `${source.name} (Copy)`,
      product: source.product,
      description: source.description,
      minSubmissions: source.minSubmissions,
      status: 'DRAFT',
      createdById: user.id,
      clonedFromId: source.id,
      clonedFromName: source.name,
      fields: {
        create: source.fields.map(f => ({
          label: f.label,
          type: f.type,
          hint: f.hint,
          options: f.options,
          required: f.required,
          trackStd: f.trackStd,
          order: f.order,
        })),
      },
    },
    include: {
      fields: { orderBy: { order: 'asc' } },
      _count: { select: { submissions: true, fields: true } },
    },
  })

  await logAction(user.id, 'CREATE', 'BuildForm', clone.id, null, { clonedFrom: source.id, name: clone.name })

  return res.status(201).json({ data: clone })
}