/*
* This file is part of the Remote Sensor Actuator Interface (ReSAI).
*
* Copyright(c) Andreas Kipp, Frederic Siepmann
* http://opensource.cit-ec.de/projects/resai
*
* This file may be licensed under the terms of of the
* GNU Lesser General Public License Version 3 (the ``LGPL''),
* or (at your option) any later version.
*
* Software distributed under the License is distributed
* on an ``AS IS'' basis, WITHOUT WARRANTY OF ANY KIND, either
* express or implied. See the LGPL for the specific language
* governing rights and limitations.
*
* You should have received a copy of the LGPL along with this
* program. If not, go to http://www.gnu.org/licenses/lgpl.html
* or write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* The development of this software was supported by the
* Excellence Cluster EXC 277 Cognitive Interaction Technology.
* The Excellence Cluster EXC 277 is a grant of the Deutsche
* Forschungsgemeinschaft (DFG) in the context of the German
* Excellence Initiative.
*
*/

/**
 * Tab showing scripts available for the icub.
 *
 * @author akipp
 */

package de.unibi.airobots.resaidroid.tabactivities;

import java.util.ArrayList;
import java.util.HashMap;

import android.app.AlertDialog;
import android.content.DialogInterface;
import android.os.Bundle;
import android.util.Log;
import android.view.ContextMenu;
import android.view.ContextMenu.ContextMenuInfo;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.MotionEvent;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.View.OnTouchListener;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemLongClickListener;
import android.widget.AdapterView.OnItemSelectedListener;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ListView;
import android.widget.SeekBar;
import android.widget.Spinner;
import android.widget.TextView;
import de.unibi.airobots.resaidroid.R;
import de.unibi.airobots.resaidroid.constants.ServerConfig;
import de.unibi.airobots.resaidroid.helper.EasyDialog;
import de.unibi.airobots.resaidroid.tabactivities.template.TabTemplate;

public class TabScripts extends TabTemplate implements OnItemSelectedListener,
		SeekBar.OnSeekBarChangeListener, OnTouchListener,
		OnItemLongClickListener {

	private Spinner m_ScriptSpinner;
	private ArrayAdapter<CharSequence> m_adapterForScriptSpinner;
	private Button btnGetScript;
	private Button btnCreateScript;
	private Button btnExecuteScript;
	private Button btnInterrupt;
	private SeekBar seekMoveDelay;
	private TextView txtMoveDelay;

	private ListView lvScript;
	private ArrayList<String> scriptlines;
	private ArrayAdapter<String> scriptlinesAdapter;

	private ArrayList<String> scripts = new ArrayList<String>();

	private long selLineId = 0;

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.scripts);

		txtMoveDelay = (TextView) findViewById(R.id.txtMoveDelay);
		seekMoveDelay = (SeekBar) findViewById(R.id.seekMoveDelay);
		seekMoveDelay.setOnSeekBarChangeListener(this);

		scriptlines = new ArrayList<String>();

		scriptlinesAdapter = new ArrayAdapter<String>(this,
				R.layout.scripts_list_item, scriptlines);

		if (scriptlinesAdapter != null) {
			lvScript = (ListView) findViewById(R.id.lvScript);
			if (lvScript != null) {
				lvScript.setAdapter(scriptlinesAdapter);
			}
		}

		btnGetScript = (Button) findViewById(R.id.btnGetScript);
		btnGetScript.setOnClickListener(new OnClickListener() {

			@Override
			public void onClick(View v) {
				if (m_ScriptSpinner.getSelectedItem() != null) {
					scriptlines.clear();
					lvScript.invalidate();
					scriptlinesAdapter.notifyDataSetChanged();

					addProperty("TAG", "ScripterThread");
					addProperty("ScripterThread", "True");
					addProperty(
							"SCRIPT",
							m_ScriptSpinner.getItemAtPosition(
									m_ScriptSpinner.getSelectedItemPosition())
									.toString());
					addProperty("ACTION", "get_script");
					sendMessage(ServerConfig.RECIPIENT_FULL);
				} else {
					EasyDialog.makeToast(getApplicationContext(),
							"Please select a script first!");
				}
			}
		});

		btnInterrupt = (Button) findViewById(R.id.btnInterrupt);
		btnInterrupt.setOnClickListener(new OnClickListener() {

			@Override
			public void onClick(View v) {
				addProperty("TAG", "ScripterThread");
				addProperty("ScripterThread", "True");
				addProperty("ACTION", "interrupt");
				sendMessage(ServerConfig.RECIPIENT_FULL);
			}
		});

		btnCreateScript = (Button) findViewById(R.id.btnCreateScript);
		btnCreateScript.setOnClickListener(new OnClickListener() {

			@Override
			public void onClick(View v) {
				createScriptPopup();
			}
		});

		lvScript.setOnTouchListener(this);
		lvScript.setOnItemSelectedListener(this);
		lvScript.setOnItemLongClickListener(this);
		registerForContextMenu(lvScript);

		btnExecuteScript = (Button) findViewById(R.id.btnExecuteScript);
		btnExecuteScript.setOnClickListener(new OnClickListener() {

			@Override
			public void onClick(View v) {
				if (m_ScriptSpinner.getSelectedItem() != null) {

					addProperty("TAG", "ScripterThread");
					addProperty("ScripterThread", "True");
					addProperty(
							"SCRIPT",
							m_ScriptSpinner.getItemAtPosition(
									m_ScriptSpinner.getSelectedItemPosition())
									.toString());
					addProperty("ACTION", "execute_script");
					addProperty("MOVE_DELAY",
							String.valueOf(seekMoveDelay.getProgress()));
					sendMessage(ServerConfig.RECIPIENT_FULL);
				} else {
					EasyDialog.makeToast(getApplicationContext(),
							"Please select a script first!");
				}
			}
		});

		// REQUEST SCRIPTS
		addProperty("TAG", "ScripterThread");
		addProperty("ScripterThread", "True");
		addProperty("ACTION", "get_scriptnames");
		sendMessage(ServerConfig.RECIPIENT_FULL);
	}

	@Override
	protected void onResume() {
		// TODO Auto-generated method stub
		super.onResume();

		// REQUEST SCRIPTS
		addProperty("TAG", "ScripterThread");
		addProperty("ScripterThread", "True");
		addProperty("ACTION", "get_scriptnames");
		sendMessage(ServerConfig.RECIPIENT_FULL);
	}

	private void createScriptPopup() {
		AlertDialog.Builder alert = new AlertDialog.Builder(this);

		alert.setTitle("Create new script");
		alert.setMessage("Enter name for new script:");

		// Set an EditText view to get user input
		final EditText input = new EditText(this);
		alert.setView(input);

		alert.setPositiveButton("Ok", new DialogInterface.OnClickListener() {
			public void onClick(DialogInterface dialog, int whichButton) {
				String value = input.getText().toString();
				// Do something with value!
				if (value.length() > 0) {
					addProperty("TAG", "ScripterThread");
					addProperty("ScripterThread", "True");
					addProperty("ACTION", "create_script");
					addProperty("SCRIPT", value);
					sendMessage(ServerConfig.RECIPIENT_FULL);
				} else {
					EasyDialog.makeToast(getApplicationContext(),
							"No script name given!");
				}
			}
		});

		alert.setNegativeButton("Cancel",
				new DialogInterface.OnClickListener() {
					public void onClick(DialogInterface dialog, int whichButton) {
						// Canceled.
					}
				});

		alert.show();
	}

	private void initScriptSpinner() {

		// SCRIPT SPINNER
		m_ScriptSpinner = (Spinner) findViewById(R.id.spinnerScript);
		m_adapterForScriptSpinner = new ArrayAdapter<CharSequence>(this,
				android.R.layout.simple_spinner_item);
		m_adapterForScriptSpinner.clear();
		m_adapterForScriptSpinner
				.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
		m_ScriptSpinner.setAdapter(m_adapterForScriptSpinner);
		for (String scriptname : scripts) {
			m_adapterForScriptSpinner.add(scriptname);
		}

		// initScriptSpinner();
		m_ScriptSpinner.setOnItemSelectedListener(this);
	}

	@Override
	public void processProperties() {
		messageHandler.post(new Runnable() {
			public void run() {
				try {
					synchronized (receivedProperties) {
						if (receivedProperties
								.containsKey("ScripterThread_ACTION")) {
							if (receivedProperties.get("ScripterThread_ACTION")
									.equals("send_script")) {

								scriptlines.clear();
								lvScript.invalidate();
								scriptlinesAdapter.notifyDataSetChanged();

								HashMap<Integer, String> scriptElements = new HashMap<Integer, String>();

								for (String prop : receivedProperties.keySet()) {
									if (prop.startsWith("ScripterThread_LINE_",
											0) && prop.length() > 20) {
										scriptElements.put(Integer
												.parseInt(prop.substring(20)),
												receivedProperties.get(prop));
									}

								}

								for (int i = 0; i < scriptElements.size(); i++) {
									scriptlines.add(scriptElements.get(i + 1));
									lvScript.invalidate();
									scriptlinesAdapter.notifyDataSetChanged();
								}

							} else if (receivedProperties.get(
									"ScripterThread_ACTION").equals(
									"scriptnames")) {

								scripts.clear();
								for (String prop : receivedProperties.keySet()) {
									if (prop.startsWith(
											"ScripterThread_SCRIPT_", 0)) {
										scripts.add(receivedProperties
												.get(prop));
									}
								}
								initScriptSpinner();
							} else if (receivedProperties.get(
									"ScripterThread_ACTION").equals("error")) {

								EasyDialog
										.makeToast(
												getApplicationContext(),
												receivedProperties
														.get("ScripterThread_ERROR_MESSAGE"));
							}
						}
					}
				} catch (Exception e) {
					// TODO: handle exception
					Log.i(TAG, "###ERROR " + e.getMessage());
				}
			}
		});
	}

	@Override
	public void onItemSelected(AdapterView<?> parent, View view, int pos,
			long id) {
		if (parent.equals(lvScript)) {
			selLineId = id;
		}

	}

	@Override
	public void onNothingSelected(AdapterView<?> parent) {

	}

	@Override
	public boolean onTouch(View v, MotionEvent event) {
		// TODO Auto-generated method stub
		return false;
	}

	@Override
	public void onCreateContextMenu(ContextMenu menu, View v,
			ContextMenuInfo menuInfo) {
		MenuInflater inflater = getMenuInflater();
		inflater.inflate(R.menu.scriptstouchmenu, menu);
	}

	@Override
	public boolean onContextItemSelected(MenuItem item) {

		switch (item.getItemId()) {
		case R.id.miDelete:
			addProperty("TAG", "ScripterThread");
			addProperty("ScripterThread", "True");
			addProperty(
					"SCRIPT",
					m_ScriptSpinner.getItemAtPosition(
							m_ScriptSpinner.getSelectedItemPosition())
							.toString());
			addProperty("ACTION", "del_line");
			addProperty("LINE_ID", String.valueOf(selLineId));
			sendMessage(ServerConfig.RECIPIENT_FULL);
			break;

		case R.id.miMoveUp:
			addProperty("TAG", "ScripterThread");
			addProperty("ScripterThread", "True");
			addProperty(
					"SCRIPT",
					m_ScriptSpinner.getItemAtPosition(
							m_ScriptSpinner.getSelectedItemPosition())
							.toString());
			addProperty("ACTION", "move_up");
			addProperty("LINE_ID", String.valueOf(selLineId));
			sendMessage(ServerConfig.RECIPIENT_FULL);
			break;

		case R.id.miMoveDown:
			addProperty("TAG", "ScripterThread");
			addProperty("ScripterThread", "True");
			addProperty(
					"SCRIPT",
					m_ScriptSpinner.getItemAtPosition(
							m_ScriptSpinner.getSelectedItemPosition())
							.toString());
			addProperty("ACTION", "move_down");
			addProperty("LINE_ID", String.valueOf(selLineId));
			sendMessage(ServerConfig.RECIPIENT_FULL);
			break;

		default:
		}

		return true;
	}

	@Override
	public boolean onItemLongClick(AdapterView<?> parent, View view, int pos,
			long id) {
		if (parent.equals(lvScript)) {
			selLineId = id;
		}
		return false;
	}

	@Override
	public void onProgressChanged(SeekBar seekBar, int progress,
			boolean fromUser) {
		if (seekBar.equals(seekMoveDelay)) {
			txtMoveDelay.setText(String.valueOf(progress));
		}

	}

	@Override
	public void onStartTrackingTouch(SeekBar seekBar) {
		// TODO Auto-generated method stub

	}

	@Override
	public void onStopTrackingTouch(SeekBar seekBar) {
		// TODO Auto-generated method stub

	}
}