package seed.utils;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.io.UnsupportedEncodingException;

import org.apache.log4j.Logger;
import org.apache.poi.xwpf.converter.core.FileImageExtractor;
import org.apache.poi.xwpf.converter.core.FileURIResolver;
import org.apache.poi.xwpf.converter.core.XWPFConverterException;
import org.apache.poi.xwpf.converter.xhtml.XHTMLConverter;
import org.apache.poi.xwpf.converter.xhtml.XHTMLOptions;
import org.apache.poi.xwpf.usermodel.XWPFDocument;

public class SeedCvtDOCXToHtml {

	private Logger log = Logger.getLogger(this.getClass());
	
//	public static void main(String args[]) {
//
//		String rootPath = "F:/javaConvert";
//		String filePath = "test/test.docx";
//		String output = "F:/javaConvert/test/img/";
//		
//		new SeedCvtDOCXToHtml().convert(rootPath, filePath, output);
//	}
	
	public synchronized void convert(String rootPath, String filePath, String output) {
		
		boolean success = false;
		
		if(filePath.endsWith(".docx")) {

			File file = new File(rootPath + "/" + filePath);
			
			if (file.exists()) {
				
		  		FileInputStream 		fileInputStream = null;
		  		InputStreamReader 	inputStreamReader = null;
		  		BufferedReader 		bufferedReader = null;
		  		
				FileOutputStream fileOutputStream = null;
				OutputStreamWriter	outputStreamWriter 	= null;
				BufferedWriter 			bufferedWriter 			= null;
		
				try{
					
					StringBuffer fileHtml 	= new StringBuffer();
					
					InputStream in = new FileInputStream(file);
					XWPFDocument document = new XWPFDocument(in);
			
			        XHTMLOptions options = XHTMLOptions.create();
			        
			        File imageFolder = new File(output + getFileName(filePath) + "/img");
			        
			        options.setExtractor( new FileImageExtractor(imageFolder));
			        options.URIResolver( new FileURIResolver(imageFolder));
			
			        fileOutputStream = new FileOutputStream(new File(output + getFileName(filePath) + "_org_.jsp"));
					XHTMLConverter.getInstance().convert(document, fileOutputStream, options);
					
					//이미지 경로때문에 파일 읽어서 다시 쓰기 해야함(서버경로에서 해당 파일 경로로 변경)
					File tmpFile = new File(output + getFileName(filePath) + "_org_.jsp");
					
					if(tmpFile.exists()){
						
		  				fileInputStream 				= new FileInputStream(output + getFileName(filePath) + "_org_.jsp");
		  				inputStreamReader 		= new InputStreamReader(fileInputStream, "EUC-KR");
		  				bufferedReader 			= new BufferedReader(inputStreamReader);
						
		  				String fileBuffer = "";
		  				
		  				while((fileBuffer = bufferedReader.readLine()) != null){
		    				fileHtml.append(fileBuffer);
		    				fileHtml.append("\n");
		  				}
		  				
						fileOutputStream 		= new FileOutputStream(output + getFileName(filePath) + ".jsp");
						outputStreamWriter 	= new OutputStreamWriter(fileOutputStream, "UTF-8");
						bufferedWriter 						= new BufferedWriter(outputStreamWriter);

						bufferedWriter.write("<%@ page contentType=\"text/html;charset=utf-8\" %>");
				    	bufferedWriter.write("\n");
				    	
						bufferedWriter.write(fileHtml.toString().replaceAll("\\\\", "/").replaceAll(output, "/site/"+filePath.substring(0, filePath.lastIndexOf("/"))+"/"+getFileName(filePath)+"/convert/"));
						bufferedWriter.flush();
						
						success = true;
					}
					
				} catch (FileNotFoundException e) {
					log.error("CHECK ERROR:",e);
					success = false;
				} catch (UnsupportedEncodingException e) {
					log.error("CHECK ERROR:",e);
					success = false;
				} catch (XWPFConverterException e) {
					log.error("CHECK ERROR:",e);
					success = false;
				} catch (IOException e) {
					log.error("CHECK ERROR:",e);
					success = false;
				} catch (Exception e) {
					log.error("CHECK ERROR:",e);
					success = false;
				} finally{
		  			if(bufferedReader!=null){try{bufferedReader.close();}catch(IOException e){log.error("CHECK ERROR:",e);}}
		  			if(inputStreamReader!=null){try{inputStreamReader.close();}catch(IOException e){log.error("CHECK ERROR:",e);}}
		  			if(fileInputStream!=null){try{fileInputStream.close();}catch(IOException e){log.error("CHECK ERROR:",e);}}					
					if(bufferedWriter!=null){try{bufferedWriter.close();}catch(IOException e){log.error("CHECK ERROR:",e);}}
					if(outputStreamWriter!=null){try{outputStreamWriter.close();}catch(IOException e){log.error("CHECK ERROR:",e);}}
					if(fileOutputStream!=null){try{fileOutputStream.close();}catch(IOException e){log.error("CHECK ERROR:",e);}}
				}
			}
			
			if(!success){
				SeedUtils.setSeedDeleteFiles(output, "");
			}else{
				SeedUtils.setSeedDeleteFile(output + getFileName(filePath) + "_org_.jsp");				
			}
		}
	}
	
	private static String getFileName(String filePath){
		int sep = filePath.lastIndexOf("\\") == -1 ? filePath.lastIndexOf("/") : filePath.lastIndexOf("\\");
		return filePath.substring( sep + 1  , filePath.lastIndexOf("."));
	}
}