import { requireAuth } from '~/server/utils/auth'
import { nodes, addAchievement } from '~/server/utils/db'

export default defineEventHandler(async (event) => {
  const user = requireAuth(event)
  const id = getRouterParam(event, 'id')
  const body = await readBody(event)

  const existing = nodes.get(id || '') || { id, state: 'pending', assigned_to: user.id }

  // Update state
  const updated = { ...existing, ...body, updatedAt: new Date().toISOString() }
  nodes.set(id || '', updated)

  // Gamification: achievement on completion
  if (body.state === 'completed' && existing.state !== 'completed') {
    addAchievement(user.id, {
      id: `completed-${id}`,
      title: 'Задача выполнена',
      description: `Нода ${id} завершена`,
      icon: '✅'
    })
  }

  return { node: updated }
})