import { requireAuth } from '~/server/utils/auth'
import { prisma } from '~/server/utils/prisma'

export default defineEventHandler(async (event) => {
  const user = requireAuth(event)

  const allGroups = await prisma.group.findMany({
    where: { isPublic: true },
    include: {
      members: { include: { user: { select: { id: true, username: true } } } },
      _count: { select: { members: true, canvases: true } }
    },
    orderBy: { createdAt: 'desc' }
  })

  return {
    groups: allGroups.map(g => ({
      id: g.id,
      name: g.name,
      description: g.description,
      isPublic: g.isPublic,
      ownerId: g.ownerId,
      createdAt: g.createdAt,
      updatedAt: g.updatedAt,
      memberCount: g._count.members,
      canvasCount: g._count.canvases,
      isMember: g.members.some(m => m.userId === user.id)
    }))
  }
})