import { createError } from 'h3'
import { updateMemberProfile, getUserById } from '../../repositories/member-repository'
import { requireMemberSession } from '../../utils/member-auth'
import { removeManagedAvatarAsset } from '../../utils/member-avatar'
import { uploadMemberAvatarImage } from '../../utils/member-avatar-upload'
import { MEDIA_THUMBNAIL_ROOT, upsertMediaMetadataCategory } from '../../utils/media-library'

/**
 * 회원 썸네일 업로드 API
 * @param {import('h3').H3Event} event - 요청 이벤트
 * @returns {Promise<{ avatarUrl: string }>} 업로드 결과
 */
export default defineEventHandler(async (event) => {
  const session = requireMemberSession(event)
  const currentUser = await getUserById(session.userId)
  if (!currentUser) {
    throw createError({
      statusCode: 404,
      message: '회원 정보를 찾을 수 없습니다.'
    })
  }

  const { avatarUrl } = await uploadMemberAvatarImage(event)

  await updateMemberProfile({
    userId: session.userId,
    username: currentUser.username,
    avatarUrl
  })

  await upsertMediaMetadataCategory(avatarUrl, MEDIA_THUMBNAIL_ROOT)

  if (currentUser.avatarUrl && currentUser.avatarUrl !== avatarUrl) {
    await removeManagedAvatarAsset(currentUser.avatarUrl)
  }

  return {
    avatarUrl
  }
})