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

export default defineEventHandler(async () => {
  const db = useDb()

  const rows = 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)
    .orderBy(asc(users.id))

  const [uploadStats, commentStats] = await Promise.all([
    db.select({ userId: uploads.userId, count: count() }).from(uploads).groupBy(uploads.userId),
    db.select({ userId: comments.userId, count: count() }).from(comments).groupBy(comments.userId),
  ])
  const uploadCount = new Map(uploadStats.map(s => [s.userId, s.count]))
  const commentCount = new Map(commentStats.map(s => [s.userId, s.count]))

  return rows.map(u => ({
    id: u.id,
    name: u.name,
    color: u.color,
    avatarUrl: avatarUrl(u.avatar),
    cardEffect: u.cardEffect,
    cardEffectColor: u.cardEffectColor, cardVignette: u.cardVignette,
    cardBorderEffect: u.cardBorderEffect,
    cardBorderEffectColor: u.cardBorderEffectColor,
    createdAt: u.createdAt,
    stats: {
      uploads: uploadCount.get(u.id) ?? 0,
      comments: commentCount.get(u.id) ?? 0,
    },
  }))
})