var Tinkerforge = require('../Tinkerforge')
,   Conf        = require('./config.json')
,   Helper      = require('../Adawim/helper')
,   Log         = require('../Adawim/logging')
,   http        = require('http')
,   WebSocket   = require('ws')
,   hobu        = require('./hobu');


var item = {
  host: Conf.display.host,
  port: Conf.display.port,
  uid: Conf.display.uid
}

connect(item)


/* private */
function reconnect(item) {
  Log.debug('Reconnect ' + item.host);
  setTimeout(function() { connect(item) }, 10000);
}

/* private */
function connect(item) {
  var HOST = item.host;
  var PORT = item.port;
  var UID = item.uid;

  Log.log('Init ' + UID + ' @' + HOST);
  
  var ipcon = new Tinkerforge.IPConnection(); // Create IP connection
  var oled = new Tinkerforge.BrickletOLED128x64(UID, ipcon); // Create device object

  
  ipcon.connect(HOST, PORT,
    function (error) {
      /*
        IPConnection.ERROR_ALREADY_CONNECTED = 11
        IPConnection.ERROR_NOT_CONNECTED = 12
        IPConnection.ERROR_CONNECT_FAILED = 13
        IPConnection.ERROR_INVALID_FUNCTION_ID = 21
        IPConnection.ERROR_TIMEOUT = 31
        IPConnection.ERROR_INVALID_PARAMETER = 41
        IPConnection.ERROR_FUNCTION_NOT_SUPPORTED = 42
        IPConnection.ERROR_UNKNOWN_ERROR = 43
      */

      Log.error('Error @'+HOST+': ' + error);
      
      if(error === 13) {
        reconnect(item);
      }
    }
  ); // Connect to brickd
  // Don't use device before ipcon is connected
  
  ipcon.on(Tinkerforge.IPConnection.CALLBACK_CONNECTED,
    function (connectReason) {
      // Clear display
      oled.clearDisplay();

      // Write "Hello World" starting from upper left corner of the screen
      oled.writeLine(0, 0, 'I love programming!');
      
      hobu.init(oled)
    }
  );

  
  process.on( 'SIGINT', function() {
    Log.log( "Gracefully disconnect " + HOST );
    ipcon.disconnect();
    process.exit( );
  });
}