var BOB_mod_express = require('express');
var BOB_mod_router  = BOB_mod_express.Router();
var BOB_mod_path    = require('path');
var BOB_mod_mkdirp  = require('mkdirp');
var BOB_mod_os      = require('os');
var BOB_mod_fs      = require('fs');

// var BOB_mod_fsExtra = require('fs-extra')

var BOB_tol_gphotos = null;
var BOB_tol_booth   = null;
var BOB_cfg_config  = null;

var BOB_var_boothInProgress = 0;
var BOB_var_gamepad = require("gamepad");
var BOB_var_ipAddress = '127.0.0.1';

var BOB_var_path = "/home/cocoon/workspace/bobinoscope";

var BOB_var_killZone = {
	top : 2,
	bottom : 2,
	left : 25,
	right : 25
}

BOB_mod_mkdirp.sync(BOB_var_path+"/public/printer/todo");
BOB_mod_mkdirp.sync(BOB_var_path+"/public/printer/done");

/* GET home page. */
BOB_mod_router.get('/bobinoscope', function(req, res, next) {
  res.render('index', {
	serverIpAddress: BOB_var_ipAddress,
	killZone : BOB_var_killZone
  });
});
/* GET view page. */
BOB_mod_router.get('/', function(req, res, next) {
  res.render('view', {serverIpAddress: BOB_var_ipAddress});
});

BOB_mod_router.get('/booth/build/:boothId', function(req, res, next) {
  BOB_var_boothInProgress += 1;
  BOB_cfg_config.io.emit('boothState');
  BOB_tol_booth.buildBooth(req.params.boothId, function(pErr) {
    BOB_cfg_config.io.emit('boothState');
    BOB_var_boothInProgress -= 1;
    res.json({ error:  pErr, data : null, boothId: req.params.boothId});
  });
})

BOB_mod_router.get('/booth/list/:from', function(req, res, next) {
  BOB_tol_booth.getBoothList(req.params.from, function(pErr, pList) {
    res.json({error: pErr, booths: pList, inProgress : BOB_var_boothInProgress});
  })
})

/* GET home page. */
BOB_mod_router.get('/dslr/takepicture/:boothId/:pictId', function(req, res, next) {
  // BOB_cfg_config.io.emit('boothState');
  BOB_tol_gphotos.takePicture(req.params.boothId, req.params.pictId, function(pErr) {
    res.json({ error:  pErr, data : null});
  })
});

/* GET view page. */
BOB_mod_router.get('/download/final/hd/:pictId', function(req, res, next) {
  res.download(BOB_var_path+'/public/img/final/'+req.params.pictId);
});


/* GET view page. */
BOB_mod_router.get('/print/bobinogramme/:pictId', function(req, res, next) {
  var srcPath = BOB_mod_path.join(BOB_var_path, '/public/img/final/'+req.params.pictId);
  var dstPath = BOB_mod_path.join(BOB_var_path, '/public/printer/todo/'+req.params.pictId);
  copyFile(srcPath, dstPath, function(pErr) {
    res.json({error: pErr})
  })
});

BOB_mod_router.get('/print/list/todo', function(req, res, next) {
  var todoPath = BOB_mod_path.join(BOB_var_path, '/public/printer/todo');
  BOB_mod_fs.readdir(todoPath, function(pErr, pList) {
    res.json({error: pErr, todos: pList})
  })
})


function copyFile(source, target, cb) {
  var cbCalled = false;

  var rd = BOB_mod_fs.createReadStream(source);
  rd.on("error", function(err) {
    done(err);
  });
  var wr = BOB_mod_fs.createWriteStream(target);
  wr.on("error", function(err) {
    done(err);
  });
  wr.on("close", function(ex) {
    done();
  });
  rd.pipe(wr);

  function done(err) {
    if (!cbCalled) {
      cb(err);
      cbCalled = true;
    }
  }
}


// Initialize the library 
BOB_var_gamepad.init()
// List the state of all currently attached devices 
for (var i = 0, l = BOB_var_gamepad.numDevices(); i < l; i++) {
  console.log(i, BOB_var_gamepad.deviceAtIndex(i));
}
// Create a game loop and poll for events 
setInterval(BOB_var_gamepad.processEvents, 16);
// Scan for new gamepads as a slower rate 
setInterval(BOB_var_gamepad.detectDevices, 500);
// Listen for button down events on all gamepads 
BOB_var_gamepad.on("down", function (pId, pNum) {
  BOB_cfg_config.io.emit('boothClick', {
    id : pId,
    num : pNum
  });
})

// Get local server ip address
var ifaces = BOB_mod_os.networkInterfaces();
Object.keys(ifaces).forEach(function (ifname) {
  var alias = 0;

  ifaces[ifname].forEach(function (iface) {
    if ('IPv4' !== iface.family || iface.internal !== false) {
      // skip over internal (i.e. 127.0.0.1) and non-ipv4 addresses
      return;
    }

    BOB_var_ipAddress = iface.address;
    
    if (alias >= 1) {
      // this single interface has multiple ipv4 addresses
      console.log(ifname + ':' + alias, iface.address);
    } else {
      // this interface has only one ipv4 adress
      console.log(ifname, iface.address);
    }
  });
});


module.exports = function(pConfig) {
  BOB_cfg_config  = pConfig;
  BOB_tol_gphotos = require('../tools/tools-gphoto2')(pConfig);
  BOB_tol_booth   = require('../tools/tools-photobooth')(pConfig);
  return BOB_mod_router;
}