import { count, eq } from 'drizzle-orm'
import { comments, uploads, users } from '../../db/schema'

export default defineEventHandler(async (event) => {
  const idParam = getRouterParam(event, 'id') ?? ''
  if (!/^\d+$/.test(idParam)) {
    throw createError({ statusCode: 400, statusMessage: 'Ungültige Nutzer-ID' })
  }
  const userId = Number(idParam)

  const db = useDb()
  const [user] = await db
    .select({ id: users.id, name: users.name, color: users.color, avatar: users.avatar, cardEffect: users.cardEffect, cardEffectColor: users.cardEffectColor, cardVignette: users.cardVignette, cardBorderEffect: users.cardBorderEffect, cardBorderEffectColor: users.cardBorderEffectColor, createdAt: users.createdAt })
    .from(users)
    .where(eq(users.id, userId))
    .limit(1)

  if (!user) {
    throw createError({ statusCode: 404, statusMessage: 'Nutzer nicht gefunden' })
  }

  const [uploadStats] = await db
    .select({ count: count() })
    .from(uploads)
    .where(eq(uploads.userId, user.id))

  const [commentStats] = await db
    .select({ count: count() })
    .from(comments)
    .where(eq(comments.userId, user.id))

  return {
    user: {
      id: user.id,
      name: user.name,
      color: user.color,
      avatarUrl: avatarUrl(user.avatar),
      cardEffect: user.cardEffect,
      cardEffectColor: user.cardEffectColor, cardVignette: user.cardVignette,
      cardBorderEffect: user.cardBorderEffect,
      cardBorderEffectColor: user.cardBorderEffectColor,
      createdAt: user.createdAt,
    },
    stats: {
      uploads: uploadStats?.count ?? 0,
      comments: commentStats?.count ?? 0,
    },
  }
})