import { requireAuth } from '~/server/utils/auth'
import { groups, userGroups } from '~/server/utils/db'

export default defineEventHandler(async (event) => {
  const user = requireAuth(event)
  const body = await readBody(event)
  const { name, description = '', isPublic = true } = body

  if (!name?.trim()) {
    throw createError({ statusCode: 400, message: 'Group name is required' })
  }

  const id = `group-${Date.now()}-${Math.random().toString(36).slice(2, 6)}`
  const now = new Date().toISOString()

  const group = { id, name: name.trim(), description, isPublic, createdAt: now, updatedAt: now, ownerId: user.id }
  groups.set(id, group)

  userGroups.set(`${user.id}-${id}`, {
    userId: user.id,
    groupId: id,
    role: 'admin',
    joinedAt: now
  })

  return { group }
})