package com.bonus.sys.service;

import java.io.BufferedInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.util.Date;
import java.util.Enumeration;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.stereotype.Service;

import com.bonus.core.DateTimeHelper;
import com.bonus.core.ExcelUtils;
import com.bonus.core.ReflectUtil;
import com.bonus.sys.BaseServiceImp;
import com.bonus.sys.GlobalConst;
import com.bonus.sys.PropertyHelper;
import com.bonus.sys.UserShiroHelper;
import com.bonus.sys.beans.FileUploadInfoBean;
import com.bonus.sys.beans.SysDataDictBean;
import com.bonus.sys.dao.FileUploadInfoDao;
import com.oreilly.servlet.MultipartRequest;
import com.oreilly.servlet.multipart.DefaultFileRenamePolicy;

@Service("FileUploadService")
public class FileUploadServiceImp extends BaseServiceImp<FileUploadInfoBean> implements FileUploadService{

    
    @Autowired
    FileUploadInfoDao fileDao;
    

	
	@Override
	public void downloadDocument(HttpServletRequest request, HttpServletResponse response,FileUploadInfoBean o) {
		
		FileUploadInfoBean file = fileDao.findByFileId(o);
		
		if(file != null) {
			
			String realSavePath =  PropertyHelper.getPropertyByKey("fileSavePath");
			
			String filePath = realSavePath+file.getFolderName()+"/"+file.getSaveName()+file.getSuffix();
			
			System.err.println("filePath="+filePath);
			
			try {
				downLoad(request,file,response);
			} catch (Exception e) {
				logger.error("下载失败"+e,e);
				e.printStackTrace();
			}
		}else {
			
		}
	}
	
	private void downLoad(HttpServletRequest request,FileUploadInfoBean file, HttpServletResponse response) {
		try {
			//String paths = request.getSession().getServletContext().getRealPath(""); 
			String realSavePath =  PropertyHelper.getPropertyByKey("fileSavePath");
			
			String filePath = realSavePath+file.getFolderName()+"/"+file.getSaveName()+file.getSuffix();
		    File f = new File(filePath);
			if (!f.exists()) {
				logger.warn("文件不存在");
			}
	        String fileName = f.getName();
	        fileName = new String(fileName.getBytes("UTF-8"), "ISO-8859-1");

	        BufferedInputStream br = new BufferedInputStream(new FileInputStream(f));
	        byte[] buf = new byte[1024];
	        int len = 0;
	        response.reset(); // 非常重要
	        // 纯下载方式
	            response.setContentType("application/octet-stream");
	            response.setHeader("Content-Disposition", "attachment; filename=" + fileName);
	        OutputStream out = response.getOutputStream();
	        while ((len = br.read(buf)) > 0){
	        	  out.write(buf, 0, len);
	        }
	        br.close();
	        out.close();
		} catch (Exception e) {
			logger.warn("download file error:", e);
		}
	}

	
	
	
	@Override
	public void downloadTemplate(HttpServletRequest request, HttpServletResponse response, FileUploadInfoBean o) {
		String realSavePath =  PropertyHelper.getPropertyByKey("fileSavePath");
		String flag = o.getModelFlag();
		String modelFlag = GlobalConst.map.get(flag);
		String[] classParam = ReflectUtil.getTypeAnnotation(modelFlag);
		o.setModelFlag(classParam[0]);
		List<FileUploadInfoBean> file = fileDao.findByFileModelFlag(o);
		if(file.size()>0) {
			try {
				downLoadTemplate(request,file.get(0),response);
			} catch (Exception e) {
				logger.error("下载失败"+e,e);
				e.printStackTrace();
			}
		}else {
			long newName=System.currentTimeMillis();
			String[] titles = ReflectUtil.getTitleValue(modelFlag);
			ExcelUtils.createExcel(titles, realSavePath+"/template/"+newName+".xlsx");
			FileUploadInfoBean newfile = new FileUploadInfoBean();
			newfile.setCreateTime(DateTimeHelper.currentDateTime());
			newfile.setFolderName("/template");
			newfile.setModelFlag(classParam[0]);
			newfile.setPreName(classParam[1]);
			newfile.setSaveName(newName+"");
			newfile.setSuffix(".xlsx");
			newfile.setType(new SysDataDictBean(57));
			Integer result = fileDao.insertBean(newfile);
			if(result == 1) {
				downLoadTemplate(request,newfile,response);
			}
		}
	}
	
	private void downLoadTemplate(HttpServletRequest request,FileUploadInfoBean file,HttpServletResponse response){
		String realSavePath =  PropertyHelper.getPropertyByKey("fileSavePath");
		try {
			
			String filePath = realSavePath+file.getFolderName()+"/"+file.getSaveName()+file.getSuffix();
			
	    	String downName = file.getPreName()+file.getSuffix();
	    	
		    File f = new File(filePath);
		    
			if (!f.exists()) {
				logger.warn("文件不存在");
			}
	        String fileName = f.getName();
	        fileName = new String(fileName.getBytes("UTF-8"), "ISO-8859-1");
	        downName = new String(downName.getBytes("UTF-8"), "ISO-8859-1");

	        BufferedInputStream br = new BufferedInputStream(new FileInputStream(f));
	        byte[] buf = new byte[1024];
	        int len = 0;
	        response.reset(); // 非常重要
	        // 纯下载方式
	            response.setContentType("application/octet-stream");
	            response.setHeader("Content-Disposition", "attachment; filename=" + downName);
	        OutputStream out = response.getOutputStream();
	        while ((len = br.read(buf)) > 0){
	        	  out.write(buf, 0, len);
	        }
	        br.close();
	        out.close();
		} catch (Exception e) {
			logger.warn("download file error:", e);
		}
	}

	@Override
	public String getClassName(String shortName) {
		
		return null;
	}

	@Override
	public String findUrlByOwnerId(Integer wonerId) {
		FileUploadInfoBean bean=new FileUploadInfoBean();
		bean.setOwnerId(wonerId);
		bean.setModelFlag("signature");
		FileUploadInfoBean o=fileDao.findByOwnerId(bean);
		String url=null;
		if(o!=null) {
        	url=o.getFolderName()+"/"+o.getSaveName()+o.getSuffix();
        }
        
        return url;
	}

	@Override
	public String findUrlByOwnerId2(Integer wonerId) {
		FileUploadInfoBean bean=new FileUploadInfoBean();
		bean.setOwnerId(wonerId);
		bean.setModelFlag("scrapUpload");
		FileUploadInfoBean o=fileDao.findByOwnerId(bean);
		String url=null;
		if(o!=null) {
        	url=o.getFolderName()+"/"+o.getSaveName();
        }
        
        return url;
	}
	
	@Override
	public void updateOwnerId(FileUploadInfoBean fub) {
		 String[] ids = fub.getIds().split(",");
 		  HashMap<String,Object> idsMap=new HashMap<String,Object>();
 		  idsMap.put("idss",ids );
		fileDao.updateOwnerId(fub,idsMap);
	}
	
	
	
	
}