import { createError, readBody } from 'h3'
import { z } from 'zod'
import { createComment } from '../../../repositories/comment-repository'
import { touchUserActivity } from '../../../repositories/member-repository'
import { requireMemberSession } from '../../../utils/member-auth'
import { getClientIp } from '../../../utils/request-ip'

const createCommentSchema = z.object({
  body: z.string().trim().min(1).max(5000),
  parentId: z.string().uuid().optional().nullable()
})

/**
 * 게시물 댓글 생성 API
 * @param {import('h3').H3Event} event - 요청 이벤트
 * @returns {Promise<{ comment: Object }>} 생성 댓글
 */
export default defineEventHandler(async (event) => {
  const session = requireMemberSession(event)
  const slug = String(getRouterParam(event, 'slug') || '')
  const parsedBody = createCommentSchema.safeParse(await readBody(event))

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

  const comment = await createComment({
    slug,
    userId: session.userId,
    body: parsedBody.data.body,
    parentId: parsedBody.data.parentId || null
  })
  await touchUserActivity({
    userId: session.userId,
    ip: getClientIp(event)
  })

  return {
    comment
  }
})