import { profiles, canvases, follows } from '~/server/utils/db'

export default defineEventHandler(async (event) => {
  const userId = getRouterParam(event, 'id')

  if (!userId) {
    throw createError({ statusCode: 400, message: 'User ID is required' })
  }

  const profile = profiles.get(userId)
  if (!profile) {
    throw createError({ statusCode: 404, message: 'Profile not found' })
  }

  // Count user's canvases
  const userCanvases = Array.from(canvases.values()).filter(
    canvas => canvas.ownerId === userId
  )

  // Count followers and following
  const followers = Array.from(follows.values()).filter(
    follow => follow.followingId === userId
  ).length

  const following = Array.from(follows.values()).filter(
    follow => follow.followerId === userId
  ).length

  // Update profile with current stats
  const updatedProfile = {
    ...profile,
    canvasCount: userCanvases.length,
    followerCount: followers,
    followingCount: following
  }

  profiles.set(userId, updatedProfile)

  return { profile: updatedProfile }
})