package com.product.file.service;

import cn.hutool.core.io.FileUtil;
import com.product.file.util.AsposeUtil;
import com.product.file.util.FileUtils;
import org.apache.poi.openxml4j.opc.OPCPackage;
import org.apache.poi.xwpf.usermodel.XWPFDocument;
import org.apache.tomcat.util.http.fileupload.IOUtils;
import org.apache.xmlbeans.XmlOptions;
import org.openxmlformats.schemas.wordprocessingml.x2006.main.CTBody;

import java.io.*;
import java.util.ArrayList;
import java.util.List;

/**
 * 合并word
 */
public class MergeDoc {

	/**
	 * 合并docx文件
	 *
	 * @param srcDocxs 需要合并的目标docx文件
	 * @param response 合并后的docx输出文件
	 */
	public static File mergeDoc(List<File> srcDocxs, String tempFilePath) {
		if (srcDocxs.size() > 1) {
			File file = srcDocxs.get(0);
			for (int i = 1; i < srcDocxs.size(); i++) {
				file = AsposeUtil.mergeWord(file, srcDocxs.get(i));
			}
			FileUtil.copyFile(file, new File(tempFilePath));
			FileUtil.del(file);
		}
		return null;
	}

	/**
	 * 合并文档内容
	 *
	 * @param src    目标文档
	 * @param append 要合并的文档
	 * @throws Exception
	 */
	private static void appendBody(CTBody src, CTBody append) throws Exception {
		XmlOptions optionsOuter = new XmlOptions();
		optionsOuter.setSaveOuter();
		String appendString = append.xmlText(optionsOuter);
		//替换word中得空行、根据自己需求来选择需不需要
		//word文档其实是由xml文件合成得，一下替换得是作者对应得xml文件中得空行标签
//        appendString = appendString.replaceAll("<w:p><w:pPr><w:spacing w:line=\\\"360\\\" w:lineRule=\\\"auto\\\"/><w:jc w:val=\\\"right\\\"/><w:rPr><w:rFonts w:ascii=\\\"仿宋\\\" w:eastAsia=\\\"仿宋\\\" w:hAnsi=\\\"仿宋\\\"/><w:sz w:val=\\\"24\\\"/></w:rPr></w:pPr></w:p>","");
//        appendString = appendString.replaceAll("<w:p><w:pPr xsi:nil=\\\"true\\\" xmlns:xsi=\\\"xsi\\\"/></w:p>","");
//        appendString = appendString.replaceAll("<w:p><w:pPr><w:ind w:firstLineChars=\\\"200\\\" w:firstLine=\\\"600\\\"/><w:jc w:val=\\\"right\\\"/><w:rPr><w:rFonts w:ascii=\\\"仿宋\\\" w:eastAsia=\\\"仿宋\\\" w:hAnsi=\\\"仿宋\\\"/><w:sz w:val=\\\"30\\\"/><w:szCs w:val=\\\"30\\\"/></w:rPr></w:pPr></w:p>","");
//        appendString = appendString.replaceAll("<w:spacing w:line=\\\"360\\\" w:lineRule=\\\"auto\\\"/>","");;
		String srcString = src.xmlText();
//        srcString = srcString.replaceAll("<w:p><w:pPr><w:ind w:firstLineChars=\\\"200\\\" w:firstLine=\\\"600\\\"/><w:jc w:val=\\\"right\\\"/><w:rPr><w:rFonts w:ascii=\\\"仿宋\\\" w:eastAsia=\\\"仿宋\\\" w:hAnsi=\\\"仿宋\\\"/><w:sz w:val=\\\"30\\\"/><w:szCs w:val=\\\"30\\\"/></w:rPr></w:pPr></w:p>","");
//        srcString = srcString.replaceAll("<w:spacing w:line=\\\"360\\\" w:lineRule=\\\"auto\\\"/>","");
//        srcString = srcString.replaceAll("<w:p><w:pPr><w:spacing w:line=\\\"360\\\" w:lineRule=\\\"auto\\\"/><w:jc w:val=\\\"right\\\"/><w:rPr><w:rFonts w:ascii=\\\"仿宋\\\" w:eastAsia=\\\"仿宋\\\" w:hAnsi=\\\"仿宋\\\"/><w:sz w:val=\\\"24\\\"/></w:rPr></w:pPr></w:p>","");
//        srcString = srcString.replaceAll("<w:p><w:pPr xsi:nil=\\\"true\\\" xmlns:xsi=\\\"xsi\\\"/></w:p>","");
		String prefix = srcString.substring(0, srcString.indexOf(">") + 1);
		String mainPart = srcString.substring(srcString.indexOf(">") + 1,
				srcString.lastIndexOf("<"));
		String sufix = srcString.substring(srcString.lastIndexOf("<"));
		String addPart = appendString.substring(appendString.indexOf(">") + 1,
				appendString.lastIndexOf("<"));
		CTBody makeBody = CTBody.Factory.parse(prefix + mainPart + addPart
				+ sufix);
		src.set(makeBody);
	}

}