import { getQuery } from 'h3'
import { listPosts } from '../repositories/content-repository'
import { canAccessMembershipContent } from '../repositories/member-repository'
import { getVerifiedMemberSession } from '../utils/member-auth'
import {
  DEFAULT_POST_LIST_PAGE_SIZE,
  normalizeDisplayCount,
  normalizeListPage
} from '../../lib/display-count-settings.js'

/**
 * 공개 게시물 목록 API
 * @param {import('h3').H3Event} event - 요청 이벤트
 * @returns {Promise<Array>} 게시물 목록
 */
export default defineEventHandler(async (event) => {
  const session = await getVerifiedMemberSession(event)
  const includeMembership = await canAccessMembershipContent(session?.userId)
  const query = getQuery(event)
  const page = normalizeListPage(query.page)
  const limit = normalizeDisplayCount(query.limit, DEFAULT_POST_LIST_PAGE_SIZE)
  const offset = (page - 1) * limit
  const paginated = query.paginated === '1'

  const result = await listPosts({
    includeMembership,
    limit,
    offset,
    tagSlug: String(query.tag || '').trim(),
    featuredOnly: query.featured === '1',
    includeTotal: paginated
  })

  if (!paginated) {
    return result
  }

  const total = Number(result.total || 0)
  const pageSize = limit

  return {
    items: result.items,
    pagination: {
      page,
      limit: pageSize,
      total,
      totalPages: Math.max(1, Math.ceil(total / pageSize))
    }
  }
})