'use client'

import { escapeHtml } from '@admin/utils/editor/escape-html'

export function renderSimpleMarkdownBody(markdown: string) {
  const lines = markdown.trim().split('\n')
  const blocks: string[] = []
  let paragraph: string[] = []
  let listItems: string[] = []

  const flushParagraph = () => {
    if (paragraph.length === 0) return
    blocks.push(`<p>${escapeHtml(paragraph.join(' ').trim())}</p>`)
    paragraph = []
  }

  const flushList = () => {
    if (listItems.length === 0) return
    blocks.push(`<ul>${listItems.map((item) => `<li>${escapeHtml(item)}</li>`).join('')}</ul>`)
    listItems = []
  }

  for (const line of lines) {
    const trimmedLine = line.trim()
    if (!trimmedLine) {
      flushParagraph()
      flushList()
      continue
    }

    const listMatch = /^[-*]\s+(.+)$/.exec(trimmedLine)
    if (listMatch) {
      flushParagraph()
      listItems.push(listMatch[1])
      continue
    }

    flushList()
    paragraph.push(trimmedLine)
  }

  flushParagraph()
  flushList()

  return blocks.join('')
}