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


Helper.each(Conf.items, function(item) {  
  connect(item);
});


/* private */
function reconnect(item) {
  Log.debug('Reconnect ' + item.host);
  setTimeout(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 io = new Tinkerforge.BrickletIO4(UID, ipcon); // Create device object
  
  var counter = 0;
  var readyForNextNotification = true;
  
  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) {
      // Enable interrupt on pin 0
      io.setInterrupt(1 << 0);
    
      // get current value as bitmask
      io.getValue(
        function (valueMask) {
          Log.log('Value Mask: ' + valueMask.toString(2));
          handleDependingOnValue(item, valueMask.toString(2));
        },
        function (error) {
          Log.error('Error: ' + error);
        }
      );
    }
  );
  
  // Register interrupt callback
  io.on(Tinkerforge.BrickletIO4.CALLBACK_INTERRUPT,
    // Callback function for interrupt callback
    function (interruptMask, valueMask) {
      Log.log('Interrupt Mask: ' + interruptMask.toString(2));
      Log.log('Value Mask: ' + valueMask.toString(2));

      handleDependingOnValue(item, valueMask.toString(2));
    }
  );

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

/* private */
function handleDependingOnValue(item, value2check) {
  switch(value2check) {
    case item.on.action.open.value:
      doDoorStateChangedCall(item.on.action.open);
      break;
    case item.on.action.closed.value:
      doDoorStateChangedCall(item.on.action.closed);
      break;
      
  }
}

/* private */
function doDoorStateChangedCall(options) {
  Log.inspect('Call options', options);

  callback = function(response) {
    var str = '';

    //another chunk of data has been recieved, so append it to `str`
    response.on('data', function (chunk) {
      str += chunk;
    });

    //the whole response has been recieved, so we just print it out here
    response.on('end', function () {
      Log.log(HOST + ': ' + str);
    });
  }

  var req = http.request(options, function(res) {
    //Log.inspect('Result', res);
  });

  req.on('error', function(err) {
    if(HOST) {
      Log.error(HOST + ': ' + err);
    } else {
      Log.error(err);
    }
  });
  
  req.end();
}