import { NextRequest, NextResponse } from 'next/server'
import prisma from '@/lib/prisma'
import { auth } from '@/auth'
import { z } from 'zod'
import { verifyParticipant } from '@/lib/brainstorm-collab'
import { emitToSession } from '@/lib/socket-emit'

const starSchema = z.object({
  ideaId: z.string().min(1),
})

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

  try {
    const { sessionId } = await params
    const body = await request.json()
    const { ideaId } = starSchema.parse(body)

    const brainstormSession = await prisma.brainstormSession.findFirst({
      where: { id: sessionId },
    })

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

    const { isParticipant } = await verifyParticipant(sessionId, session.user.id, 'editor')
    if (!isParticipant) {
      return NextResponse.json({ error: 'No edit permission' }, { status: 403 })
    }

    const idea = await prisma.brainstormIdea.findFirst({
      where: { id: ideaId, sessionId },
    })

    if (!idea) {
      return NextResponse.json({ error: 'Idea not found' }, { status: 404 })
    }

    const updated = await prisma.brainstormIdea.update({
      where: { id: ideaId },
      data: { isStarred: !idea.isStarred },
    })

    await emitToSession(sessionId, 'idea:starred', {
      ideaId,
      isStarred: updated.isStarred,
      userId: session.user.id,
    })

    return NextResponse.json({ success: true, data: { ideaId, isStarred: updated.isStarred } })
  } catch (error) {
    console.error('Error starring idea:', error)
    return NextResponse.json({ error: 'Failed to star idea' }, { status: 500 })
  }
}