import React, { useMemo } from 'react';

interface MarkdownRendererProps {
  text: string;
}

const MarkdownRenderer = ({ text }: MarkdownRendererProps) => {
  const content = useMemo(() => {
    if (!text) return null;

    const blocks = text.split(/(\n{2,})/g);

    return blocks.map((block, i) => {
      if (/^\s*$/.test(block)) {
        return null;
      }

      const lines = block.trim().split('\n');
      const isList =
        lines.length > 0 &&
        lines.every((line) => line.trim().startsWith('* ') || line.trim().startsWith('- '));

      if (isList) {
        return (
          <ul key={i} className="list-disc list-outside pl-5 space-y-1 my-2">
            {lines.map((line, j) => {
              const lineContent = line.trim().substring(2);
              const boldRegex = /\*\*(.*?)\*\*/g;
              const parts = lineContent.split(boldRegex);

              return (
                <li key={j}>
                  {parts.map((part, k) => (k % 2 === 1 ? <strong key={k}>{part}</strong> : part))}
                </li>
              );
            })}
          </ul>
        );
      } else {
        const boldRegex = /\*\*(.*?)\*\*/g;
        return (
          <div key={i}>
            {lines.map((line, j) => (
              <p key={j} className="[&:not(:first-child)]:mt-2">
                {line
                  .split(boldRegex)
                  .map((part, k) => (k % 2 === 1 ? <strong key={k}>{part}</strong> : part))}
              </p>
            ))}
          </div>
        );
      }
    });
  }, [text]);

  return <>{content}</>;
};

export default React.memo(MarkdownRenderer);