/*
 * Hedgewars for Android. An Android port of Hedgewars, a free turn based strategy game
 * Copyright (c) 2011-2012 Richard Deurwaarder <xeli@xelification.com>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; version 2 of the License
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
 */


package org.hedgewars.hedgeroid.Downloader;

import org.hedgewars.hedgeroid.R;

import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.ServiceConnection;
import android.os.Bundle;
import android.os.Handler;
import android.os.IBinder;
import android.os.Message;
import android.os.Messenger;
import android.os.RemoteException;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.ProgressBar;
import android.widget.TextView;

public class DownloadFragment extends Fragment{
	public static final String EXTRA_TASK = "task";

	public static final int MSG_START = 0;
	public static final int MSG_UPDATE = 1;
	public static final int MSG_DONE = 2;
	public static final int MSG_FAILED = 3;

	private boolean boundToService = false;

	private TextView progress_sub;
	private ProgressBar progress;
	private Button /*positive,*/ negative;

	private DownloadPackage pack;

	private Handler messageHandler;
	private Messenger messenger, messengerService;

	public static DownloadFragment getInstance(DownloadPackage task){
		DownloadFragment df = new DownloadFragment();
		Bundle args = new Bundle();
		args.putParcelable(DownloadFragment.EXTRA_TASK, task);

		df.setArguments(args);

		return df;
	}

	public void onActivityCreated(Bundle savedInstanceState){
		super.onActivityCreated(savedInstanceState);

		messageHandler = new Handler(messageCallback);
		messenger = new Messenger(messageHandler);
		Intent i = new Intent(getActivity().getApplicationContext(), DownloadService.class);
		getActivity().startService(i);
		getActivity().bindService(new Intent(getActivity().getApplicationContext(), DownloadService.class), connection, Context.BIND_AUTO_CREATE);
	}

	public View onCreateView(LayoutInflater inflater, ViewGroup viewgroup, Bundle savedInstanceState){
		View v = inflater.inflate(R.layout.download_progress, viewgroup, false);
		progress_sub = (TextView)v.findViewById(R.id.progressbar_sub);
		progress = (ProgressBar)v.findViewById(R.id.progressbar);

		//positive = (Button) v.findViewById(R.id.background);
		negative = (Button) v.findViewById(R.id.cancelDownload);
		//positive.setOnClickListener(backgroundClicker);
		negative.setOnClickListener(cancelClicker);

		pack = getArguments().getParcelable(DownloadFragment.EXTRA_TASK);

		return v;
	}

	private OnClickListener backgroundClicker = new OnClickListener(){
		public void onClick(View v){
			getActivity().finish();
		}
	};
	private OnClickListener cancelClicker = new OnClickListener(){
		public void onClick(View v){
			if(messengerService != null){
				Message message = Message.obtain(messageHandler, DownloadService.MSG_CANCEL, pack);
				try {
					messengerService.send(message);
				} catch (RemoteException e) {}
			}
			//getActivity().finish();
		}
	};
	private OnClickListener doneClicker = new OnClickListener(){
		public void onClick(View v){
			getActivity().finish();
		}
	};

	private OnClickListener tryAgainClicker = new OnClickListener(){
		public void onClick(View v){
			if(messengerService != null){
				Message message = Message.obtain(messageHandler, DownloadService.MSG_ADDTASK, pack);
				message.replyTo = messenger;
				try {
					messengerService.send(message);
				} catch (RemoteException e) {
					e.printStackTrace();
				}
			}
		}
	};

	public void onDestroy(){
		unBindFromService();
		super.onDestroy();
	}

	private ServiceConnection connection = new ServiceConnection(){

		public void onServiceConnected(ComponentName name, IBinder service) {
			messengerService = new Messenger(service);

			try{
				//give the service a task
				if(messengerService != null){
					Message message = Message.obtain(messageHandler, DownloadService.MSG_ADDTASK, pack);
					message.replyTo = messenger;
					messengerService.send(message);
				}

			}catch (RemoteException e){}
		}

		public void onServiceDisconnected(ComponentName name) {
			messengerService = null;
		}

	};

	public void unBindFromService(){
		if(messengerService != null){
			try {
				Message message = Message.obtain(messageHandler, DownloadService.MSG_UNREGISTER_CLIENT, pack);
				message.replyTo = messenger;
				messengerService.send(message);
			} catch (RemoteException e) {
				e.printStackTrace();
			}
		}

		getActivity().unbindService(connection);
	}

	private Handler.Callback messageCallback = new Handler.Callback() {

		public boolean handleMessage(Message msg) {
			switch(msg.what){
			case MSG_START:
				progress.setMax(msg.arg1);
				progress_sub.setText(String.format("%dkb/%dkb\n%s", 0, msg.arg1, ""));
				//positive.setText(R.string.download_background);
				//positive.setOnClickListener(backgroundClicker);
				negative.setText(R.string.download_cancel);
				negative.setOnClickListener(cancelClicker);
				break;
			case MSG_UPDATE:
				progress_sub.setText(String.format("%d%% - %dkb/%dkb\n%s",(msg.arg1*100)/msg.arg2, msg.arg1, msg.arg2, msg.obj));
				progress.setProgress(msg.arg1);
				break;
			case MSG_DONE:
				progress.setProgress(progress.getMax());
				progress_sub.setText(R.string.download_done);

				//	positive.setText(R.string.download_back);
				//	positive.setOnClickListener(doneClicker);

				negative.setVisibility(View.INVISIBLE);
				break;
			case MSG_FAILED:
				progress.setProgress(progress.getMax());
				
				String errorMsg = getString(R.string.download_failed);
				switch(msg.arg1){
				case DownloadAsyncTask.EXIT_CONNERROR: progress_sub.setText(errorMsg + " " + "Connection error"); break;
				case DownloadAsyncTask.EXIT_FNF: progress_sub.setText(errorMsg + " " + "File not found"); break;
				case DownloadAsyncTask.EXIT_MD5: progress_sub.setText(errorMsg + " " + "MD5 check failed"); break;
				case DownloadAsyncTask.EXIT_URLFAIL: progress_sub.setText(errorMsg + " " + "Invalid url"); break;
				}
				negative.setText(R.string.download_tryagain);
				negative.setOnClickListener(tryAgainClicker);
				break;
			}
			return false;
		}
	};

}