import { useEffect, useState } from "react";
import mammoth from "mammoth";

interface WordViewerProps {
  /** Word 文档的路径 */
  docPath: string;
  /** 容器的类名 */
  className?: string;
}

export const WordViewer = ({ docPath, className = "" }: WordViewerProps) => {
  const [htmlContent, setHtmlContent] = useState<string>("");
  const [loading, setLoading] = useState<boolean>(true);
  const [error, setError] = useState<string>("");

  useEffect(() => {
    const loadDocument = async () => {
      try {
        setLoading(true);
        setError("");

        // 获取 Word 文档
        const response = await fetch(docPath);
        if (!response.ok) {
          throw new Error("无法加载文档");
        }

        // 转换为 ArrayBuffer
        const arrayBuffer = await response.arrayBuffer();

        // 使用 mammoth 转换为 HTML
        const result = await mammoth.convertToHtml({
          arrayBuffer: arrayBuffer,
        });

        setHtmlContent(result.value);

        // 如果有警告信息，可以在控制台输出
        if (result.messages.length > 0) {
          console.warn("文档转换警告:", result.messages);
        }
      } catch (err) {
        console.error("加载文档失败:", err);
        setError(err instanceof Error ? err.message : "加载文档失败");
      } finally {
        setLoading(false);
      }
    };

    loadDocument();
  }, [docPath]);

  if (loading) {
    return (
      <div className={`flex justify-center items-center ${className}`}>
        <div className="text-[#82B2D6] text-2xl font-bold">加载中...</div>
      </div>
    );
  }

  if (error) {
    return (
      <div className={`flex justify-center items-center ${className}`}>
        <div className="text-red-500 text-2xl font-bold">加载失败: {error}</div>
      </div>
    );
  }

  return (
    <div className={`h-full flex flex-col p-4 ${className}`}>
      {/* 头部工具栏 */}
      {/* <div className="flex justify-between items-center mb-4">
        <h3 className="text-[#82B2D6] text-2xl font-bold">工作室活动文稿</h3>
        <a
          href={docPath}
          download="工作室活动文稿.docx"
          className="px-6 py-2 bg-[#82B2D6] text-white rounded-lg hover:bg-[#6a9bc4] transition-colors text-sm font-medium"
        >
          下载文档
        </a>
      </div> */}

      {/* 文档内容区域  custom-scrollbar*/}
      <div className="flex-1 overflow-y-auto  bg-white rounded-lg px-4 py-0 ">
        <div
          className="word-content"
          dangerouslySetInnerHTML={{ __html: htmlContent }}
          style={{
            maxWidth: "100%",
            color: "#333",
            lineHeight: "1.8",
          }}
        />
      </div>

      {/* 内联样式 - 美化文档内容 */}
      <style>{`
        .word-content h1 {
          font-size: 2em;
          font-weight: bold;
          margin: 1em 0 0.5em;
          color: #1a1a1a;
          border-bottom: 2px solid #82B2D6;
          padding-bottom: 0.3em;
        }

        .word-content h2 {
          font-size: 1.5em;
          font-weight: bold;
          margin: 0.8em 0 0.4em;
          color: #2a2a2a;
        }

        .word-content h3 {
          font-size: 1.3em;
          font-weight: bold;
          margin: 0.6em 0 0.3em;
          color: #3a3a3a;
        }

        .word-content p {
          margin: 0.8em 0;
          text-align: justify;
          text-indent: 2em;
        }

        /* 表格内的段落不需要缩进 */
        .word-content table p {
          text-indent: 0;
          margin: 0.4em 0;
        }

        .word-content img {
          max-width: 100%;
          height: auto;
          display: block;
          margin: 1.5em auto;
          border-radius: 4px;
          box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
        }

        .word-content ul,
        .word-content ol {
          margin: 0.8em 0;
          padding-left: 2em;
        }

        .word-content li {
          margin: 0.4em 0;
        }

        .word-content table {
          width: 100%;
          border-collapse: collapse;
          margin: 1em 0;
          table-layout: fixed;
        }

        .word-content table th,
        .word-content table td {
          border: 1px solid #ddd;
          padding: 0.8em;
          text-align: left;
          vertical-align: top;
          word-wrap: break-word;
          word-break: break-word;
          overflow-wrap: break-word;
        }

        .word-content table th {
          background-color: #f5f5f5;
          font-weight: bold;
        }

        /* 表格第一列（标题列）固定宽度 */
        .word-content table tr td:first-child,
        .word-content table tr th:first-child {
          width: 200px;
          min-width: 200px;
          white-space: normal;
          font-weight: 600;
          background-color: #f8f9fa;
        }

        .word-content strong,
        .word-content b {
          font-weight: bold;
          color: #1a1a1a;
        }

        .word-content em,
        .word-content i {
          font-style: italic;
        }

        .word-content a {
          color: #82B2D6;
          text-decoration: underline;
        }

        .word-content a:hover {
          color: #6a9bc4;
        }

        .word-content blockquote {
          border-left: 4px solid #82B2D6;
          padding-left: 1em;
          margin: 1em 0;
          color: #666;
          font-style: italic;
        }
      `}</style>
    </div>
  );
};