const express = require('express');
const router = express.Router();
const numeral = require('numeral');
var fse = require('fs-extra');
var Promise = require('bluebird');
// Bring in article module
let Article = require('../models/article');
let Work=require('../models/works');
let KifCert = require('../models/kifcerts');
var logging=require('../js/helpers');
// User Model
let User = require('../models/user');
var utils = require('../js/utils');
const path = require('path');
var multer   =  require( 'multer' );
const uuidv4 = require('uuid/v4');
var mv = require('mv');
var ad=false;
var Encoder = require("code-128-encoder");
var Jimp = require("jimp");

var idCounter=0;

var findQuery = Article.find({}).sort({deviceCounter : -1}).limit(1);
var deviceDate= new Date().toISOString().replace(/T/, ' ').replace(/\..+/, '');

var findWorkQuery = Work.find({}).sort({workCounter : -1}).limit(1);
    // Új berendezés sorszám generálása
var  getNextWorkId=function(callback)
    {
      // Find last id

      var cnt=0;
      var findWorkQuery = a.Work.find({}).sort({workCounter : -1}).limit(1);
      findWorkQuery.exec(function(err, maxResult){

          if (err) {
            return callback(err);
            }

            if (maxResult[0]===undefined)
            {
              console.log('workCounter undefined...');
              cnt=0;
            }
            else {
              cnt=maxResult[0].deviceCounter;
              console.log('WorkID: ' + cnt.toString());  
            }
            cnt++;
            console.log('Új WorkID: ' + cnt.toString());
            callback(null, cnt);
      });


    }
// Új berendezés sorszám generálása
function getNextDevId(callback)
{
  // Find last id
  
  var findQuery = Article.find({'deviceDate': {$gte: new Date().getFullYear()}}).sort({deviceCounter : -1}).limit(1);
  var cnt=0;
  findQuery.exec(function(err, maxResult){

      if (err) {
        return callback(err);
        }

        if (maxResult[0]===undefined)
        {
          console.log('deviceCounter undefined...');
          cnt=0;
        }
        else {
          cnt=maxResult[0].deviceCounter;
        }
        cnt++;
        console.log('Új DevID: ' + cnt.toString());
        callback(null, cnt);
  });


}
// Delete article
/*
router.post('/delete/:id',utils.ensureAuthenticated, function(req,res){
var id = req.params.id;
Article.findOneAndRemove({_id: id}, function(err){
  if(err) {
    console.log('Picsa >>'+err);
    return res.status(500).send();
  }
  else {

  req.flash('success','Berendezés sikeresen törölve!');
  res.redirect('/');
    console.log('Picsa >>'+ id);
  }
});
});*/

// Delete Article
router.delete('/:mode/:id', function(req, res){
/*  if(!req.user._id){
    res.status(500).send();
  }*/
  if (req.params.mode==='A')
  {
  var ObjectId = require('mongoose').Types.ObjectId;
  let query = {_id:req.params.id}

  Article.findById(req.params.id, function(err, article){ // Megkeressük a berendezést

     Work.findOneAndUpdate({}, { $pull:{'devicesArray': new ObjectId(req.params.id)}}, function (err, docs){ // Megkeressük melyik munkába vettük fel
      if (err)
      {
            console.log(err);
      }else {
        logging.logAppend("Berendezés törölve.",req.user,article.id,Article.db.name,'ARTICLEREMOVE');
        Article.remove(query, function(err){ // Töröljük a berendezést is
          if(err){
            console.log(err);
          }
          res.send('Success');
        });
      }

    });

    });
  }
  if (req.params.mode==='F')
  {
    console.log("File Törölve:" +id);
  }
});


// Storage file name to id
var storage = multer.diskStorage({
  destination: function (request, file,  callback) {
    callback(null, './uploads');
  },
  filename: function (request, file, callback) {
    if (file.mimetype.startsWith('image/'))
    {
      const newFilename = `${uuidv4()}${path.extname(file.originalname)}`;
      callback(null, newFilename);
    }
    else
    {
      file.fieldname='doc';
      callback(null, file.originalname)
    }
    console.log(file);
    //callback(null, file.originalname)
    
  }
});


var upload = multer({storage: storage}).array('photo', 20);



// Add Devices ToRoute
router.get('/addTo/:id', utils.ensureAuthenticated,function (req,res)  {
  var devId =new Date().getFullYear()  ;

  // Find last id
  console.log('Keres');
  var fileObjs=[];
  getNextDevId(function(err,did){
    if(err)
    {
      console.log('Hiba: getNextDevId');
    }
    else {




      devId+='/'+numeral(did).format('000');
      idCounter=did;
      res.render('add_articleTo', {
        title: 'Berendezés Felvétele',
        deviceID: devId,
        workNum: currentWorkNumber,
        workID: req.params.id,
        userName: req.user.name
      });
    }
  });
 });




// Add To Work Submit POST Route
router.post('/addTo/:id',utils.ensureAuthenticated, function(req,res){
  req.checkBody('title','Berendezés megnevezése kötelező!').notEmpty();
  req.checkBody('workNumber','Munkaszám megadása kötelező!').notEmpty();
  req.checkBody('deviceNumber','Berendezés gyártási szám kötelező!').notEmpty();
  req.checkBody('workSign','Berendezés jel megadása kötelező!').notEmpty();


  // Get errors
  let errors = req.validationErrors();
  var devId =new Date().getFullYear()  ;

  if(errors)
  {
    getNextDevId(function(err,did){
      if(err)
      {
        console.log('Hiba: getNextDevId');
      }
      else {
        devId+='/'+numeral(did).format('000');
        idCounter=did;
        res.render('add_articleTo', {
          title: 'Berendezés Hozzáadása',
          errors:errors,
          deviceID: devId,
          workNum: currentWorkNumber,
          workID: req.params.id,
          userName: req.user.name
        });
      }
      });

  } else {
    
    let article=new Article();
    article.title = req.body.title;
    article.author = req.user._id;//req.body.author;
    article.body = req.body.body;
    article.workNumber = req.body.workNumber;
    article.workSign = req.body.workSign;
    article.deviceNumber=req.body.deviceNumber;
    article.deviceCounter=idCounter;
    article.deviceDate=deviceDate;
    article.filePath='filedata/'+req.params.id+'/'+article._id;
    article.save(function(err){
      if(err){
        console.log(err);
        return;
      }else{
          Work.update(  // Hozzáadjuk a munkához a devId-t, majd mentjük a devicet!
            {"_id": req.params.id},
            {"$push": {"devicesArray": article}},
            function(err)
            {
              if (err)
              {
                console.log(err);
                return;
              }
              else {
                logging.logAppend("Berendezés hozzáadva.",req.user,article.id,Article.db.name,'ARTICLEADD');
                // Berendezés könyvtár létrehozása
               fse.mkdirs('/'+article.filePath, function(err){
                 if (err) return console.error(err);
                  
                 console.log("Könyvtár létrehozva! ->"+article.filePath);
               });
                 //req.flash('success','Berendezés sikeresen hozzáadva');
                  if (req.body.action==='save')
                  {
                    req.flash('success','Berendezés sikeresen hozzáadva.');
                    res.redirect('/work/'+req.params.id);
                  }
                  if (req.body.action==='saveAndNew')
                  {
                    req.flash('success','Berendezés sikeresen hozzáadva.');
                    res.redirect('/articles/addTo/'+req.params.id);
                    
                  }                    
                  
                }
            }
          );
        }
      });
  }
});




router.get('/view/*/:file',utils.ensureAuthenticated, function(req, res) {
  //response.render('upload');

 // console.log('Path:'+req.params[0]+'/'+req.params.file);
  res.sendFile('/'+req.params[0]+'/'+req.params.file);
});


// Add Route
router.get('/add', utils.ensureAuthenticated, function (req,res)  {
  var devId =new Date().getFullYear()  ;
  // Find last id
  console.log('Keres');
    getNextDevId(function(err,did){
      if(err)
      {
        console.log('Hiba: getNextDevId');
      }
      else {
        devId+='/'+numeral(did).format('000');
        idCounter=did;
        res.render('add_article', {
          title: 'Berendezés Felvétele',
          deviceID: devId,
          workNum: currentWorkNumber,
          workID: req.params.id,
          userName: req.user.name
        });
      }
    });

  /*findQuery.exec(function(err, maxResult){

      if (err) {
        console.log(err);
        res.send('404',"Az oldal nem található!");
        }

        if (maxResult[0]===undefined)
        {
          console.log('deviceCounter undefined...');
          idCounter=0;
        }
        else {
          idCounter=maxResult[0].deviceCounter;
      //} do stuff with maxResult[0]
        }
        idCounter++;
        console.log('Kész ' +idCounter);
        devId+='/'+numeral('idCounter').format('000');
  res.render('add_article', {
    title: 'Berendezés Felvétele',
    deviceID: devId

  });
  console.log('Hozzáadás');
});*/

});


// Add Submit POST Route
router.post('/add', utils.ensureAuthenticated,function(req,res){
  req.checkBody('title','Berendezés megnevezése kötelező!').notEmpty();
  req.checkBody('workNumber','Munkaszám megadása kötelező!').notEmpty();
  req.checkBody('deviceNumber','Berendezés gyártási szám kötelező!').notEmpty();
  req.checkBody('workSign','Berendezés jel megadása kötelező!').notEmpty();

  // Get errors
  let errors = req.validationErrors();

  if(errors)
  {
    res.render('add_article', {
      title: 'Berendezés Felvétele',
      errors:errors
    })
  } else {
    let article=new Article();

    article.title = req.body.title;
    article.author = req.user._id;//req.body.author;
    article.body = req.body.body;
    article.workNumber = req.body.workNumber;
    article.workSign = req.body.workSign;
    article.deviceNumber=req.body.deviceNumber;
    article.deviceDate=deviceDate;
    article.deviceCounter=idCounter;
    article.save(function(err){
        if(err){
          console.log(err);
          return;
        }else{
          req.flash('success','Berendezés sikeresen hozzáadva');
          res.redirect('/');
        }
      });

    }
});

// Get Works By WorkNumber
router.get('/getDeviceByNumber/:nr',utils.ensureAuthenticated, function(req, res) {
 
  var dnr=req.params.nr.replace('_','/');

  if (dnr==null)
  {
    
    res.send({'device':null,'work':null,'status':200});
  }
  else
  {
      Article.findOne({'deviceNumber':dnr},function(err,article){
        if (err)
        {
          
          res.send({'device':null,'work':null,'status':200});
        }
        else
        {
          if (article)
          {
            // Device keresése a munkákban
            Work.findOne({'devicesArray':{$in:[article._id]}}).exec(function (err, foundWork) {
          
              if (err)
              {

                res.send({'device':null,'work':null,'status':200});
              }
              else
              {
                res.send({'device':article,'work':foundWork,'status':200});
              }
            });
          }
          else
          {
            //req.flash('error','Nem található berendezés!');
            res.send({'device':null,'work':null,'status':200});
          }
        }
      })
    }



});

// Admin check
function checkUserAdmin2(req,callback)
{
  // Find last id

  if(req.user)
  {
          //console.log(req.user);
          if(req.user.username==='admisJacica' & req.user.auth==='ADMIN')
          {
            callback(null, true);
          }
          else {
            callback(null, false);
          }
  }
}

// Gyártmánykísérő Bizonylat generálás
router.post('/gyartmanykisero/:aid/:wid', utils.ensureAuthenticated,function (req,res)  {

  console.log('Gyartmanykisero Generálás!');
  var dt = new Date();
  var bornDate= dt.toISOString().replace(/T/, ' ').replace(/\..+/, '');
  let query = {_id:req.params.id}
  console.log('Update!'+req.params.id);
  // CERT
    Work.findById(req.params.wid,function(err,work){
      if (err)
      {
        console.log(err);
      }
      else
      {
        Article.findById(req.params.aid,function(err,article){
          if (err)
          {
            console.log(err);
          }
          else
          {
            console.log(article.title);
            var deviceDate= new Date().toISOString().replace(/-/g, '.').substring(0,10);
            const PizZip = require("pizzip");
            var Docxtemplater = require('docxtemplater');
          
            var fs = require('fs');
            var path = require('path');
          
            //Load the docx file as a binary
            var content = fs
                .readFileSync(__dirname+'/../docs/templates/gyartmanykiserotemplate.docx', 'binary');
          
            var zip = new PizZip(content);
            var encoder=new Encoder();
            var barcode=encoder.encode(article.deviceNumber);
            var doc = new Docxtemplater();
            var separation=req.body.separationText;
            doc.loadZip(zip);
            var year=new Date().getFullYear();
            console.log(barcode);
            //set the templateVariables
                doc.setData({
                  munkamegnevezes: work.title,
                  bermegnevezes: article.title,
                  munkaszam: article.workNumber,
                  berjele: article.workSign,
                  gyartasiszam: article.deviceNumber,
                  mezoszam: separation,
                  barcode: barcode,
                  datum: deviceDate,
                  });
              
                  try {
                      // render the document (replace all occurences of {first_name} by John, {last_name} by Doe, ...)
                      console.log('Generálás kész!');
                      doc.render();
                    
                  }
                  catch (error) {
                          var e = {
                              message: error.message,
                              name: error.name,
                              stack: error.stack,
                              properties: error.properties,
                          }
                          console.log(JSON.stringify({error: e}));
                          // The error thrown here contains additional information when logged with JSON.stringify (it contains a property object).
                          throw error;
                      }
          
                  var buf = doc.getZip()
                          .generate({type: 'nodebuffer'});
                  fs.writeFileSync(__dirname+'/../docs/gyartmanykisero.docx', buf);
                  //req.flash('success','Berendezés sikeresen hozzáadva');
                  var fname=article.deviceNumber.replace('/','_')+'_gyártmánykísérő.docx';
                  res.download(path.normalize(__dirname+'/../docs/gyartmanykisero.docx'),fname);
 
                 /* docxConverter(__dirname+'/../docs/gyartmanykisero.docx',__dirname+'/../docs/gyartmanykisero.pdf',function(err,result){
                    if(err){
                      console.log(err);
                    }
                    console.log('result'+result);
                    res.sendFile(path.normalize(__dirname+'/../docs/gyartmanykisero.pdf'));
                    //res.download(path.normalize(__dirname+'/../docs/gyartmanykisero.pdf'),article.title+'_gyártmánykísérő.pdf')
                  });*/
                  
          }
    
        })
      }
    })

});

// Edit Single Article
router.get('/edit/:id/:wid', utils.ensureAuthenticated,function(req,res){
  Article.findById(req.params.id,function(err,article)
  {
    var ad=false;
    checkUserAdmin2(req,function(err,res){ad=res;})
    res.render('edit_article', {
      title: 'Berendezés módosítás',
      article: article,
      rot:ad,
      wid:req.params.wid
      //artice: workSign
      });
    });
});

// Update Submit Post routes
router.post('/edit/:id/:wid', utils.ensureAuthenticated,function(req,res){
  let article = {};
  /*  req.checkBody('title','Berendezés megnevezése kötelező!').notEmpty();
    req.checkBody('workNumber','Munkaszám megadása kötelező!').notEmpty();
    req.checkBody('deviceNumber','Berendezés gyártási szám kötelező!').notEmpty();
    req.checkBody('workSign','Berendezés jel megadása kötelező!').notEmpty();
  */
  article.title = req.body.title;
  article.author = req.body.author;
  article.body = req.body.body;
  article.workNumber = req.body.workNumber;
  article.workSign = req.body.workSign;
  article.deviceNumber=req.body.deviceNumber;
  article.deviceCounter=idCounter;

  let query = {_id:req.params.id}

    Article.update(query, article, function(err){
        if(err){
          console.log(err);
          return;
        }else{
          logging.logAppend("Berendezés módosítva.",req.user,article.id,Article.db.name,'ARTICLEEDIT');
          req.flash('success','Berendezés adatok sikeresen szerkesztve');
          res.redirect('/articles/'+req.params.id+'/'+req.params.wid);
        }
      });

    //}
});


// Get Single Articlel wrom work
router.get('/:id/:wid',utils.ensureAuthenticated,function(req,res){
/*
  io.on('connection', function(socket) {  
    console.log('Client connected...');
    socket.join('sessionId');
    socket.on('join', function(data) {
        console.log(data);
        socket.emit('messages', 'Hello from server');
    });
  });*/


  
  Article.findById(req.params.id,function(err,article)
  {
  User.findById(article.author, function(err,user){
    var wid=req.params.wid;
    const testFolder = '/'+article.filePath;
    const fs = require('fs');
    var admin=false;
    var type;

    //
    console.log(testFolder);
    var fileObjs=[];
    var docObjs=[];
    //  var type='img';
    fs.readdir(testFolder, (err, files) => {
      //files.forEach(file => {
         // console.log(file);
        //});
        if (err) console.log(err);
        else
        {
        files.forEach(element => {
          // Képek átméretezése
          var a=path.extname(element).toLowerCase();
           
          var ico;
          if (!element.startsWith('th',0))
          {
            // allowed Doc types
            if (a==='.doc' || a==='.docx' || a==='.xls' || a==='.xlsx' || a==='.pdf' || a==='.mpc')
            {
                if (a.toLowerCase()==='.mpc')
                {
                    ico='/weid.jpg';
                }
                else              
                if (a.toLowerCase()==='.pdf')
                {
                    ico='/pdf.jpg';
                }
                else
                if (a.toLowerCase()==='.xls' || a.toLowerCase()==='.xlsx')
                {
                  ico='/excel.png';
                }
                else
                if (a.toLowerCase()==='.doc' || a.toLowerCase()==='.docx')
                {
                  ico='/word.png';
                }    
                docObjs.push({filen: element,ico:ico, extension: a});
            }

            // allowed Imagec types
            if (a==='.jpg' || a==='.jpeg' || a==='.png')
            {              
              ico='/articles/view/'+article.filePath+'/'+element;
              fileObjs.push({filen: element,ico:ico, extension: a});
          }   
  
            
        }
        });
        
      }
   
        if(req.user)
        {
          checkUserAdmin2(req,function(err,res){
            admin=res;
            console.log(admin);
          });
        }
        KifCert.find({deviceId: article.id},function(err,certs)
        {
          //console.log(certs);
        if (err)
        {
          res.render('article', {
            article: article,
            author: 'Nem tudni',
            rot: admin,
            workId: wid,
            fileObjs:fileObjs,
            docObjs: docObjs,
            certs: certs,
            });
        }else {
          res.render('article', {
            article: article,
            author: user.name,
            rot: admin,
            workId: wid,
            fileObjs:fileObjs,
            docObjs: docObjs,
            certs: certs
            });
        }
      });
      })
  });
  });
});

var fs = Promise.promisifyAll(require('fs'));
function moveFiles(srcDir, destDir) {
  return fs.readdirAsync(srcDir).map(function(file) {
      var destFile = path.join(destDir, file);
      console.log(destFile);
      return fs.renameAsync(path.join(srcDir, file), destFile).then(function() {
          return destFile;
      });
  });
}
router.post('/upload/:id/:wid', function(request, response) {
  var total = request.headers['content-length'];
 // var progress = 0;

  

  /*request.on('data', function (chunk) {
    progress += chunk.length;
    var perc = parseInt((progress / total) * 100);
   // console.log('percent complete: ' + perc + '%\n');
    io.on('connection', function(socket) {  
    socket.emit('messages',  perc );

  });
    status = perc;
  });*/

  upload(request, response, function(err) {
    if(err) {
      console.log('Error Occured'+err);
      return;
    }

    //Generating thumbnails




        // get the temporary location of the file
     var srcDir = './uploads/';//+request.files[0].filename;
        // set where the file should actually exists - in this case it is in the "images" directory
        var destDir = '/'+request.body.destPath ;//+request.files[0].filename;
        // move the file from the temporary location to the intended location
    // Könyvtár létrehozása ha nem létezik 
    if (!fs.existsSync(destDir)){
      fs.mkdirSync(destDir, { recursive: true });
    }
        fs.access(destDir, function(err) {
          if (err && err.code === 'ENOENT') {
            fs.mkdir(destDir);
          }
      // Fájlok másolása a munkakönyvtárba
            moveFiles(path.join(".", srcDir),  destDir).then(function(files) {
              // all done here
             // logging.logAppend("Fájl feltöltés.",req.user,req.params.id,Article.db.name,'UPLOAD');
              request.flash('success','Fájlok sikeresen feltöltve');
              console.log('fasza');
          }).catch(function(err) {
              // error here
            request.flash('error','Feltöltés sikertelen');
              console.log('hiba'+err);
          });         
        });
      





        response.redirect('/articles/'+request.params.id+'/'+request.params.wid);
        console.log('Photo Uploaded');
  })
});


router.delete('/deleteFile/:id/:wid/:fname', function(request, response) {
  
  var fpath="/filedata/"+request.params.id+"/"+request.params.wid+"/"+request.params.fname;
      fse.stat(fpath, function(err,stats){
        if (err)
        {
          request.flash('error','Fájl eltávolítás sikertelen');
          response.redirect('/articles/');
          return;
        }
        
        fse.unlink(fpath,function(err){
          if (err)
          {
            request.flash('error','Fájl eltávolítás sikertelen');
            response.redirect('/articles/');
            return;
          }
          request.flash('success','Fájl eltávolítás sikeres');
          //response.redirect('/articles/');
         // res.redirect('/articles/'+req.params.id+'/'+req.params.wid);
          response.send('Success');
        });
      });
      console.log('Fájl törölve');
});
     




module.exports = router;