package org.hedgewars.hedgeroid.netplay;

import org.hedgewars.hedgeroid.R;

import org.hedgewars.hedgeroid.netplay.NetplayService.NetplayBinder;

import android.content.ComponentName;

import android.content.Context;

import android.content.Intent;

import android.content.ServiceConnection;

import android.content.res.Configuration;

import android.os.Bundle;

import android.os.Handler;

import android.os.IBinder;

import android.support.v4.app.Fragment;

import android.text.Spanned;

import android.text.method.LinkMovementMethod;

import android.util.Log;

import android.view.KeyEvent;

import android.view.LayoutInflater;

import android.view.View;

import android.view.ViewGroup;

import android.view.inputmethod.EditorInfo;

import android.widget.EditText;

import android.widget.ScrollView;

import android.widget.TextView;

import android.widget.TextView.OnEditorActionListener;

public class LobbyChatFragment extends Fragment {

	private TextView textView;

	private EditText editText;

	private ScrollView scrollView;

	private Netconn netconn;

	private void scrollDown() {

		scrollView.post(new Runnable() {

			public void run() {

				scrollView.smoothScrollTo(0, textView.getBottom());

			}

		});

	}

	private void commitText() {

		if(netconn != null && netconn.isConnected()) {

			String text = editText.getText().toString();

			editText.setText("");

			netconn.sendChat(text);

		}

	}

	@Override

	public void onStart() {

		super.onStart();

		getActivity().bindService(new Intent(getActivity(), NetplayService.class), serviceConnection,

	            Context.BIND_AUTO_CREATE);

		Log.d("LobbyChatFragment", "started");

	}

	@Override

	public View onCreateView(LayoutInflater inflater, ViewGroup container,

			Bundle savedInstanceState) {

		View view = inflater.inflate(R.layout.lobby_chat_fragment, container, false);

		textView = (TextView) view.findViewById(R.id.lobbyConsole);

		editText = (EditText) view.findViewById(R.id.lobbyChatInput);

		scrollView = (ScrollView) view.findViewById(R.id.lobbyConsoleScroll);

		textView.setMovementMethod(LinkMovementMethod.getInstance());

        editText.setOnEditorActionListener(new OnEditorActionListener() {

			public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {

				boolean handled = false;

				if(actionId == EditorInfo.IME_ACTION_SEND) {

					commitText();

					handled = true;

				}

				return handled;

			}

		});

		return view;

	}

	@Override

	public void onDestroy() {

		super.onDestroy();

		getActivity().unbindService(serviceConnection);

	}

    private ServiceConnection serviceConnection = new ServiceConnection() {

        public void onServiceConnected(ComponentName className, IBinder binder) {

        	Log.d("LobbyChatFragment", "netconn received");

        	netconn = ((NetplayBinder) binder).getNetconn();

        	netconn.lobbyLog.observe(observer);

        }

        public void onServiceDisconnected(ComponentName className) {

        	// TODO navigate away

        	netconn.lobbyLog.unobserve(observer);

        	netconn = null;

        }

    };

    private MessageLog.Observer observer = new MessageLog.Observer() {

		public void textChanged(Spanned text) {

			if(textView != null) {

				int overhang = textView.getHeight()-scrollView.getHeight();

				boolean followBottom = overhang<=0 || Math.abs(overhang-scrollView.getScrollY())<5;

				textView.setText(text);

				if(followBottom) {

					scrollDown();

				}

			}

		}

	};

}