package org.hedgewars.hedgeroid.netplay;

import org.hedgewars.hedgeroid.netplay.Netplay.State;

import android.content.BroadcastReceiver;

import android.content.Context;

import android.content.Intent;

import android.content.IntentFilter;

import android.os.Bundle;

import android.support.v4.app.Fragment;

import android.support.v4.content.LocalBroadcastManager;

import android.widget.Toast;

/**

 * Fragment for use by an activity that depends on the state of the network

 * connection.

 * 

 * This fragment manages a few aspects of the netplay connection: Requesting

 * the network system loop to run at high frequency while the activity is in

 * the foreground, and reacting to changes in the networking state by switching

 * to the appropriate activity or finishing the activity if the network connection

 * is closed.

 */

public class NetplayStateFragment extends Fragment {

    private Netplay netplay;

    private Context appContext;

    private LocalBroadcastManager broadcastManager;

    private final BroadcastReceiver disconnectReceiver = new BroadcastReceiver() {

		@Override

		public void onReceive(Context context, Intent intent) {

			if(intent.getBooleanExtra(Netplay.EXTRA_HAS_ERROR, true)) {

				String message = intent.getStringExtra(Netplay.EXTRA_MESSAGE);

				Toast.makeText(appContext, "Disconnected: "+message, Toast.LENGTH_LONG).show();

			}

			getActivity().finish();

		}

	};

    @Override

    public void onCreate(Bundle icicle) {

        super.onCreate(icicle);

        appContext = getActivity().getApplicationContext();

        broadcastManager = LocalBroadcastManager.getInstance(appContext);

        netplay = Netplay.getAppInstance(appContext);

    }    

    @Override

    public void onResume() {

    	super.onResume();

    	broadcastManager.registerReceiver(disconnectReceiver, new IntentFilter(Netplay.ACTION_DISCONNECTED));

    	netplay.requestFastTicks();

    	if(netplay.getState() == State.NOT_CONNECTED) {

    		getActivity().finish();

    	}

    }

    @Override

    public void onPause() {

    	super.onPause();

    	broadcastManager.unregisterReceiver(disconnectReceiver);

    	netplay.unrequestFastTicks();

    }

}