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

export async function GET(
  request: NextRequest,
  { params }: { params: Promise<{ sessionId: string }> }
) {
  const authSession = await auth()
  if (!authSession?.user?.id) {
    return NextResponse.json({ error: 'Unauthorized' }, { status: 401 })
  }

  try {
    const { sessionId } = await params
    const brainstormSession = await prisma.brainstormSession.findFirst({
      where: {
        id: sessionId,
        OR: [
          { userId: authSession.user.id },
          { participants: { some: { userId: authSession.user.id } } },
          { shares: { some: { userId: authSession.user.id, status: 'accepted' } } },
        ],
      } as any,
      select: { id: true },
    })

    if (!brainstormSession) {
      return NextResponse.json({ error: 'Not found' }, { status: 404 })
    }

    const snapshots = await prisma.brainstormSnapshot.findMany({
      where: { sessionId },
      orderBy: { step: 'asc' },
      select: {
        id: true,
        step: true,
        label: true,
        activityId: true,
        ideaGraph: true,
        createdAt: true,
      },
    })

    return NextResponse.json({ success: true, data: snapshots })
  } catch (error) {
    console.error('Error fetching snapshots:', error)
    return NextResponse.json(
      { error: 'Failed to fetch snapshots' },
      { status: 500 }
    )
  }
}