ScanCamera/scancamera.js at master · tmp-demo/ScanCamera · GitHub

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var express = require('express');
var fs = require('fs');
var cameralogic = require('./cameralogic');
var http =  require('http');


var app = express()


var server = app.listen(3000, function () {

  var host = server.address().address
  var port = server.address().port

  console.log('Example app listening at http://%s:%s', host, port)

});

var io = require('socket.io').listen(server);


app.use(express.static('public'));
app.use(express.static('pictures'));
app.use(express.static('raw'));


// respond with "Hello World!" on the homepage
app.get('/', function (req, res) {
  res.send('Hello World!');
})


app.get('/preview/', function (req, res) {
  if(cameralogic.snap(cameralogic.definitions.uld)){
    res.send('starting scan at preview definition!');

  }else{
    res.send('cannot scan yet, the camera is already in use !');

  }

})

app.get('/snap/', function (req, res) {
  console.log('snap called');
  if(cameralogic.snap(cameralogic.definitions.sd, res)){
    console.log('starting scan at standard definition!');

  }else{
    res.send('cannot scan yet, the camera is already in use !');

  }


})

app.get('/snap/:definition', function (req, res) {
  console.log('snap called with definition');
  if(cameralogic.definitions[req.params.definition]){
    if( cameralogic.snap(cameralogic.definitions[req.params.definition], res) ) {
      console.log('starting scan at specific definition!');
    }else{
      res.send('cannot scan yet, the camera is already in use !');

    }

  }else{
    res.send('cannot scan, definition is unknown');
  }


})


io.sockets.on('connection', function (socket) {
  console.log('client attempting to connect');
  socket.emit('status', { status: 'connected', message: 'connection established' });
  socket.on('snap', function ( data ) {
    //data should contain the requiered definition .
    var definition = cameralogic.definitions.sd;
    if(data && data.definition && cameralogic.definitions[data.definition]){
      definition = cameralogic.definitions[data.definition];
    }


    if(cameralogic.snap(
          cameralogic.definitions.sd
          , function(progress, preview){
              console.log('progress : '+ progress);
              socket.emit('status', { status : "progress", progress : progress, imagedata : (preview ? preview.toString('base64') : null )} );
            }
          , function(imagename, preview){
              console.log('done : '+ imagename);
              socket.emit('status', { status : "done",  imagname : imagename , imagedata : "image data for the whole image !"} );
            }
        )
    ){
      console.log('starting scan at definition : ' + definition);
      socket.emit('status' , { status : "initializing"});
    }else{
      socket.emit('status', { status: 'fail', message: 'Cannot scan yet, the camera is already in use !'});
    }
  });
});


app.get('/collection', function (req, res) {
  res.send('list of images!');

  //TODO : return here the list of the pictures already taken

})

app.get('/last.jpg', function (req, res, next) {
  console.log('acessing last picture');

  res.redirect(cameralogic.getLastPictureFilename());
;


})

app.get('/picture/:id', function (req, res) {
  res.send('the picture!');

  //TODO : return here the considered image

})

app.get('/raw/:id', function (req, res) {
  res.send('the raw picture!');

  //TODO : return here the considered image

})