package edu.ucla.iBeaconNav;

import android.app.Activity;
import android.content.Intent;
import android.graphics.Color;
import android.graphics.Typeface;
import android.os.Bundle;
import android.os.Handler;
import android.os.Messenger;
import android.preference.PreferenceManager;
import android.text.Spannable;
import android.text.SpannableString;
import android.text.format.DateFormat;
import android.text.style.BackgroundColorSpan;
import android.text.style.ForegroundColorSpan;
import android.text.style.StrikethroughSpan;
import android.text.style.StyleSpan;
import android.text.style.UnderlineSpan;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.LinearLayout;
import android.widget.ScrollView;
import android.widget.TabHost;
import android.widget.TabWidget;
import android.widget.TextView;
import android.widget.Toast;

import android.os.Bundle;
 
import com.google.android.gms.maps.MapView;

public class Main extends Activity
{
	/* Private data */
	private Handler      handler;
	private Messenger    messenger;
	private Task         task;
	private Sensors      sensors;
	private Toast        toast;

	/* Widgets */
	private TabHost      window;
	private TabWidget    tabs;
	private LinearLayout map;
	private LinearLayout state;
	private TextView     debug;
	private ScrollView   scroll;
	private Button       rstHdBttn;
	private Button       rstDstBttn;

	/* Private helper methods */
	private void notice(String text)
	{
		String    msg  = "*** " + text + "\n";
		Spannable span = new SpannableString(msg);
		span.setSpan(new StyleSpan(Typeface.BOLD), 0, msg.length(), 0);
		this.debug.append(span);
	}

	/* Private handler methods */
	private void onRegister(Task task)
	{
		Util.debug("Main: onRegister_task");
		this.task    = task;
	}
	
	private void onRegister(Sensors sensors)
	{
		Util.debug("Main: onRegister_sensors");
		this.sensors = sensors;
	}

	private void onPosition()
	{
		Util.debug("Main: onPosition");
	}

	private void onNotify(String text)
	{
		Util.debug("Main: onNotify - " + text);
		this.notice(text);
		this.toast.setText(text);
		this.toast.show();
	}

	private void onShowData(float[] data){
		TextView textView1 = null;
		TextView textView2 = null;
		TextView textView3 = null;
		int displayNum = 3;
		int dataId = (int)(data[0]+0.5);
		CMD.Data dataType = CMD.Data.values()[dataId];
		switch (dataType){
		case ACC:
			textView1 = (TextView)findViewById(R.id.accText1);
			textView2 = (TextView)findViewById(R.id.accText2);
			textView3 = (TextView)findViewById(R.id.accText3);
			break;
		case MAG:
			return;
			/*textView1 = (TextView)findViewById(R.id.magText1);
			textView2 = (TextView)findViewById(R.id.magText2);
			textView3 = (TextView)findViewById(R.id.magText3);
			break;*/
		case GYR:
			textView1 = (TextView)findViewById(R.id.gyrText1);
			textView2 = (TextView)findViewById(R.id.gyrText2);
			textView3 = (TextView)findViewById(R.id.gyrText3);
			break;
		case GYR1HZ:
			textView1 = (TextView)findViewById(R.id.gyr1hzx);
			textView2 = (TextView)findViewById(R.id.gyr1hzy);
			textView3 = (TextView)findViewById(R.id.gyr1hzz);
			break;
		case ORIENT:
			textView1 = (TextView)findViewById(R.id.orientText1);
			textView2 = (TextView)findViewById(R.id.orientText2);
			textView3 = (TextView)findViewById(R.id.orientText3);
			break;
		case WRDACC:
			textView1 = (TextView)findViewById(R.id.wrdAccText1);
			textView2 = (TextView)findViewById(R.id.wrdAccText2);
			textView3 = (TextView)findViewById(R.id.wrdAccText3);
			break;
		case STPCNT:
			textView1 = (TextView)findViewById(R.id.stepCntText);
			textView2 = (TextView)findViewById(R.id.calGrvText);
			displayNum = 2;
			break;
		case POSITION:
			textView1 = (TextView)findViewById(R.id.curPosXText);
			textView2 = (TextView)findViewById(R.id.curPosYText);
			displayNum = 2;
			break;
		case ROTATION:
			textView1 = (TextView)findViewById(R.id.roll);
			textView2 = (TextView)findViewById(R.id.pitch);
			textView3 = (TextView)findViewById(R.id.yaw);
			break;
		case HEADING:
			textView1 = (TextView)findViewById(R.id.headingText);
			displayNum = 1;
			break;
		case WRDGYR:
			textView1 = (TextView)findViewById(R.id.wrdGyrText1);
			displayNum = 1;
			break;
		case STABLE:
			textView1 = (TextView)findViewById(R.id.stableText);
			displayNum = 1;
			break;
		default:
			Util.debug("Main: Nothing Matches");
		}
		
		textView1.setText(Float.toString(data[1]));
		if (displayNum >1){
			textView2.setText(Float.toString(data[2]));
		}
		if (displayNum >2){
			textView3.setText(Float.toString(data[3]));
		}
	}
	
	/* Private service methods */
	private void register()
	{
		Util.debug("Main: register");
		startService(new Intent(this, Task.class)
				.putExtra("Command",   CMD.Command.REGISTER)
				.putExtra("Messenger", this.messenger));
		startService(new Intent(this, Sensors.class)
				.putExtra("Command",   CMD.Command.REGISTER)
				.putExtra("Messenger", this.messenger));
	}

	private void connect()
	{
		Util.debug("Main: connect");
		startService(new Intent(this, Task.class)
				.putExtra("Command", CMD.Command.CONNECT));
		startService(new Intent(this, Sensors.class)
				.putExtra("Command", CMD.Command.CONNECT));
	}

	private void disconnect()
	{
		Util.debug("Main: disconnect");
		startService(new Intent(this, Task.class)
				.putExtra("Command", CMD.Command.DISCONNECT));
		startService(new Intent(this, Sensors.class)
				.putExtra("Command", CMD.Command.DISCONNECT));
	}

	private void quit()
	{
		this.debug.setText("");
		stopService(new Intent(this, Task.class));
		Intent intent = new Intent(Intent.ACTION_MAIN);
		intent.addCategory(Intent.CATEGORY_HOME);
		intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
		startActivity(intent);
	}

	/* Activity Methods */
	@Override
	public void onCreate(Bundle savedInstanceState)
	{
		try {
			super.onCreate(savedInstanceState);
			Util.debug("Main: onCreate");

			// Setup toast
			this.toast     = Toast.makeText(this, "", Toast.LENGTH_SHORT);

			// Setup communication
			this.handler   = new MainHandler();
			this.messenger = new Messenger(this.handler);

			// Setup main layout
			this.setContentView(R.layout.main);

			// Find widgets
			this.window    = (TabHost)      findViewById(android.R.id.tabhost);
			this.tabs      = (TabWidget)    findViewById(android.R.id.tabs);
			this.map       = (LinearLayout) findViewById(R.id.map);
			this.state     = (LinearLayout) findViewById(R.id.state);
			this.debug     = (TextView)     findViewById(R.id.debug);
			this.scroll    = (ScrollView)   findViewById(R.id.debug_scroll);
			this.rstHdBttn = (Button)       findViewById(R.id.rstHdBttn);
			this.rstDstBttn= (Button)       findViewById(R.id.rstDstBttn);
			
			// TODO - remove these
			rstHdBttn.setOnClickListener(new View.OnClickListener() {
				@Override
				public void onClick(View v) {
					// TODO Auto-generated method stub
					startService(new Intent(Main.this, Sensors.class)
					.putExtra("Command",   CMD.Command.RSTHEAD));
				}
			});
			
			rstDstBttn.setOnClickListener(new View.OnClickListener() {
				@Override
				public void onClick(View v) {
					// TODO Auto-generated method stub
					startService(new Intent(Main.this, Sensors.class)
					.putExtra("Command",   CMD.Command.RSTDST));
				}
			});

			// Get a handle to the Map Fragment
			//GoogleMap map = ((MapFragment)getFragmentManager()
			//	.findFragmentById(R.id.map_fragment)).getMap();

			//LatLng sydney = new LatLng(-33.867, 151.206);

			//map.setMyLocationEnabled(true);
			//map.moveCamera(CameraUpdateFactory.newLatLngZoom(sydney, 13));

			//map.addMarker(new MarkerOptions()
			//	.title("Sydney")
			//	.snippet("The most populous city in Australia.")
			//	.position(sydney));

			// Add window tabs
			this.window.setup();

			this.window.addTab(this.window
					.newTabSpec("state")
					.setIndicator("State")
					.setContent(R.id.state));
			this.window.addTab(this.window
					.newTabSpec("map")
					.setIndicator("Map")
					.setContent(R.id.map));
			this.window.addTab(this.window
					.newTabSpec("debug")
					.setIndicator("Debug")
					.setContent(R.id.debug));

			// Attach to background service
			this.register();

		} catch (Exception e) {
			Util.debug("Error setting content view", e);
			return;
		}
	}

	@Override
	public void onStart()
	{
		super.onStart();
		this.register();
		Util.debug("Main: onStart");
	}

	@Override
	public void onResume()
	{
		super.onResume();
		Util.debug("Main: onResume");
	}

	@Override
	public void onPause()
	{
		super.onPause();
		Util.debug("Main: onPause");
	}

	@Override
	public void onStop()
	{
		super.onStop();
		Util.debug("Main: onStop");
	}

	@Override
	public void onRestart()
	{
		super.onRestart();
		Util.debug("Main: onRestart");
	}

	@Override
	public void onDestroy()
	{
		super.onDestroy();
		Util.debug("Main: onDestroy");
	}

	@Override
	public boolean onCreateOptionsMenu(Menu menu)
	{
		MenuInflater inflater = getMenuInflater();
		inflater.inflate(R.menu.main, menu);
		return true;
	}

	@Override
	public boolean onPrepareOptionsMenu(Menu menu)
	{
		boolean running = this.task != null && this.task.isRunning();
		menu.findItem(R.id.connect).setVisible(!running);
		menu.findItem(R.id.disconnect).setVisible(running);
		return true;
	}

	@Override
	public boolean onOptionsItemSelected(MenuItem item)
	{
		switch (item.getItemId()) {
			case R.id.connect:
				this.connect();
				return true;
			case R.id.disconnect:
				this.disconnect();
				return true;
			case R.id.quit:
				this.quit();
				return true;
			default:
				return false;
		}
	}

	/* Handler class */
	class MainHandler extends Handler
	{
		@Override
		public void handleMessage(android.os.Message msg)
		{
			CMD.Response resp = CMD.Response.values()[msg.what];
			switch (resp) {
				case REGISTER_TASK:
					Main.this.onRegister((Task)msg.obj);
					break;
				case REGISTER_SENSORS:
					Main.this.onRegister((Sensors)msg.obj);
					break;
				case NOTIFY:
					Main.this.onNotify((String)msg.obj);
					break;
				case SHOWDATA:
					Main.this.onShowData((float[])msg.obj);
					break;
				default:
					Util.debug("Main: unknown message - " + resp);
					break;
			}
		}
	}
}