'use client'

import { CheckCircle2, Lock } from 'lucide-react'

export function UsageBadge({ value }: { value: string }) {
  const config: Record<string, { bg: string; label: string }> = {
    allowed: { bg: 'bg-green-100 text-green-800', label: 'Erlaubt' },
    restricted: { bg: 'bg-yellow-100 text-yellow-800', label: 'Eingeschraenkt' },
    prohibited: { bg: 'bg-red-100 text-red-800', label: 'Verboten' },
    unclear: { bg: 'bg-gray-100 text-gray-600', label: 'Unklar' },
    yes: { bg: 'bg-green-100 text-green-800', label: 'Ja' },
    no: { bg: 'bg-red-100 text-red-800', label: 'Nein' },
    'n/a': { bg: 'bg-gray-100 text-gray-400', label: 'k.A.' },
  }
  const c = config[value] || config.unclear
  return <span className={`inline-flex px-1.5 py-0.5 rounded text-xs font-medium ${c.bg}`}>{c.label}</span>
}

export function PermBadge({ label, allowed }: { label: string; allowed: boolean }) {
  return (
    <div className="flex items-center gap-1">
      {allowed ? <CheckCircle2 className="w-3 h-3 text-green-500" /> : <Lock className="w-3 h-3 text-red-400" />}
      <span className={`text-xs ${allowed ? 'text-green-700' : 'text-red-500'}`}>{label}</span>
    </div>
  )
}

export function MarkdownRenderer({ content }: { content: string }) {
  let html = content
    .replace(/&/g, '&amp;')
    .replace(/</g, '&lt;')
    .replace(/>/g, '&gt;')

  html = html.replace(
    /^```[\w]*\n([\s\S]*?)^```$/gm,
    (_m, code: string) => `<pre class="bg-gray-50 border rounded p-3 my-3 text-xs font-mono overflow-x-auto whitespace-pre">${code.trimEnd()}</pre>`
  )

  html = html.replace(
    /^(\|.+\|)\n(\|[\s:|-]+\|)\n((?:\|.+\|\n?)*)/gm,
    (_m, header: string, _sep: string, body: string) => {
      const ths = header.split('|').filter((c: string) => c.trim()).map((c: string) =>
        `<th class="px-3 py-2 text-left text-xs font-medium text-gray-500 uppercase border-b">${c.trim()}</th>`
      ).join('')
      const rows = body.trim().split('\n').map((row: string) => {
        const tds = row.split('|').filter((c: string) => c.trim()).map((c: string) =>
          `<td class="px-3 py-2 text-sm text-gray-700 border-b border-gray-100">${c.trim()}</td>`
        ).join('')
        return `<tr>${tds}</tr>`
      }).join('')
      return `<table class="w-full border-collapse my-3 text-sm"><thead><tr>${ths}</tr></thead><tbody>${rows}</tbody></table>`
    }
  )

  html = html.replace(/^### (.+)$/gm, '<h4 class="text-sm font-semibold text-gray-800 mt-4 mb-2">$1</h4>')
  html = html.replace(/^## (.+)$/gm, '<h3 class="text-base font-semibold text-gray-900 mt-5 mb-2">$1</h3>')
  html = html.replace(/\*\*(.+?)\*\*/g, '<strong>$1</strong>')
  html = html.replace(/`([^`]+)`/g, '<code class="bg-gray-100 px-1 py-0.5 rounded text-xs font-mono">$1</code>')
  html = html.replace(/^- (.+)$/gm, '<li class="ml-4 text-sm text-gray-700 list-disc">$1</li>')
  html = html.replace(/((?:<li[^>]*>.*<\/li>\n?)+)/g, '<ul class="my-2 space-y-1">$1</ul>')
  html = html.replace(/^(\d+)\. (.+)$/gm, '<li class="ml-4 text-sm text-gray-700 list-decimal">$2</li>')
  html = html.replace(/^(?!<[hultdp]|$)(.+)$/gm, '<p class="text-sm text-gray-700 my-2">$1</p>')

  return <div dangerouslySetInnerHTML={{ __html: html }} />
}