import { createError, getRouterParam, readBody } from 'h3'
import { z } from 'zod'
import { requireAdminSession } from '../../../../../utils/admin-auth'
import { updateMemberRoleByAdmin } from '../../../../../repositories/member-repository'

const roleSchema = z.object({
  role: z.enum(['owner', 'admin', 'vip', 'member'])
})

/**
 * 관리자 회원 권한 변경 API
 * @param {import('h3').H3Event} event - 요청 이벤트
 * @returns {Promise<{ id: string, roleCode: string, role: string, isAdmin: boolean }>} 변경 결과
 */
export default defineEventHandler(async (event) => {
  const session = requireAdminSession(event)
  const memberId = String(getRouterParam(event, 'id') || '')
  const parsedBody = roleSchema.safeParse(await readBody(event))

  if (!memberId) {
    throw createError({
      statusCode: 400,
      message: '대상 회원 ID가 필요합니다.'
    })
  }

  if (!parsedBody.success) {
    throw createError({
      statusCode: 400,
      message: '권한 변경 요청 형식이 올바르지 않습니다.'
    })
  }

  return updateMemberRoleByAdmin({
    actorUserId: session.userId,
    targetUserId: memberId,
    role: parsedBody.data.role
  })
})