package com.fuzamei.web;

import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.URLEncoder;
import java.security.MessageDigest;
import java.util.LinkedHashMap;
import java.util.Map;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.util.DigestUtils;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.multipart.MultipartFile;
import com.fuzamei.service.AccountOpenService;
import com.fuzamei.service.PromptLetterService;
import com.fuzamei.theromus.utils.HexUtils;
import com.fuzamei.utils.HashCodeUtil;
import com.fuzamei.utils.HashXiZhiUtil;
import com.fuzamei.utils.JSONUtil;
import com.fuzamei.utils.PageDTO;
/**  
 * 文件上传功能  
 * @param file  
 * @return  
 * @throws IOException   
 */  
@Controller
@RequestMapping(value = "/PromptLetter")
public class PromptLetterAction {
	@Autowired
	private PromptLetterService  promptLetterService;//注入service
		/**
		 * 风险提示函发函  上传
		 * @param file
		 * @param request
		 * @param prompt_letter_id
		 * @return
		 * @throws IOException
		 */
	    @RequestMapping(value="/uploadFile",method=RequestMethod.POST)  
	    @ResponseBody  
	    public Map<String,Object> upload(@RequestParam("file") MultipartFile file,HttpServletRequest request,@RequestParam("prompt_letter_id") String prompt_letter_id) throws IOException{  
	        try {
	        	String path = "D:\\tomcate\\apache-tomcat-8.5.24\\webapps"+request.getServletContext().getContextPath()+"\\Content";  
	            File dir = new File(path);          
	            if(!dir.exists()){  
	                dir.mkdirs();  
	            } 
	            String fileName = file.getOriginalFilename();  
	            String pathFile=path+"/"+fileName;
	            File newfile = new File(pathFile); 
	            file.transferTo(newfile);
	          String hash = HashXiZhiUtil.getMD5Checksum(pathFile);//上传（文件）之后产生哈希值      是对文件产生哈希值
	          System.out.println(hash+"上传提示函的哈希值是");
	            //MultipartFile自带的解析方法 
	    		Map<String, Object> map = new LinkedHashMap<String, Object>();
	    		map.put("prompt_letter_id",prompt_letter_id);//有问题   待改动 
	    		map.put("hash", hash);//上传文件后产生的哈希值插入到提示函表
	    		
	    		//map.put("fileName", fileName);
	    		map.put("url","/Content/"+fileName);
				map.put("attachmentName", fileName);
				promptLetterService.insertTiShiHanOrUserOrOtherTable(map);//在插入数据库
	    	    
	            Map<String, Object>	mapResult=JSONUtil.getJsonMap(200, true, "上传提示函成功", null);
				return mapResult;
			}
	       catch (Exception e) {
				Map<String, Object> mapResult=JSONUtil.getJsonMap(500, true, "上传提示函失败"+e.getMessage(), null);
				return mapResult;
			}
	    }  
	    
	    /**
		 * 查询提示函   管理人接收列表
		 * @param data
		 * @return
		 */
		@RequestMapping(value = "/selectPromptLetter", method = RequestMethod.POST)
		@ResponseBody
		public Map<String, Object> selectPromptLetter(@RequestBody String data) {
			//System.out.println("管理人查询风险提示函信息列表");
			Map<String, Object> mapResult = new LinkedHashMap<String, Object>();
			Map<String, Object> map = JSONUtil.jsonToMap(data);
			PageDTO pageDto=  promptLetterService.selectPromptLetter(map);
			mapResult = JSONUtil.getJsonMap(200, true, "操作成功", pageDto);
			return mapResult;
		}
		
		/**
		 * 查询提示函 发送人的列表   
		 * @param data
		 * @return
		 */
		@RequestMapping(value = "/selectTishihan", method = RequestMethod.POST)
		@ResponseBody
		public Map<String, Object> selectTishihan(@RequestBody String data) {
			//System.out.println("查询风险提示函信息列表3 ，省分行托管中心风管岗");
			Map<String, Object> mapResult = new LinkedHashMap<String, Object>();
			Map<String, Object> map = JSONUtil.jsonToMap(data);
			PageDTO pageDto=  promptLetterService.selectTishihan(map);
			mapResult = JSONUtil.getJsonMap(200, true, "操作成功", pageDto);
	
			return mapResult;
		}
	
		/**  
		 * 提示函下载 doc文档
		 * @param request  
		 * @param response  
		 * @throws Exception  
		 */  
		@RequestMapping(value="/downloadFile")  
		@ResponseBody 
		public Map<String,Object> downloadFile(HttpServletRequest request,HttpServletResponse response,@RequestParam("url") String url) throws Exception{  
		    try {
		    	  //模拟文件，456.doc为需要下载的文件  
		        String fileName = request.getSession().getServletContext().getRealPath("")+url;  
		        //获取输入流  
		        InputStream bis = new BufferedInputStream(new FileInputStream(new File(fileName))); 
		        //截取文件名字
		        String filename = url.substring(url.lastIndexOf("/")+1);
		        //转码，免得文件名中文乱码  
		        filename = URLEncoder.encode(filename,"UTF-8");  
		        //设置文件下载头  
		        response.addHeader("Content-Disposition", "attachment;filename=" + filename);    
		        //1.设置文件ContentType类型，这样设置，会自动判断下载文件类型    
		        response.setContentType("multipart/form-data");   
		        BufferedOutputStream out = new BufferedOutputStream(response.getOutputStream());  
		        int len = 0;  
		        while((len = bis.read()) != -1){  
		            out.write(len);  
		            out.flush();  
		        }  
		        out.close(); 
		        //返给前端map进行前端提示
		    	return JSONUtil.getJsonMap(200, true, "下载成功",null); 
				
			} catch (Exception e) {
				return JSONUtil.getJsonMap(500, false, "下载失败:"+e.getMessage(),null); 
			}
		} 
    
}