package com.fps.iHealthFirst;

import java.util.Calendar;
import java.util.Date;
import java.util.Set;
import java.util.TreeSet;

import android.app.Activity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.Window;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemSelectedListener;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.Spinner;
import android.widget.TextView;

public class iSleep extends Activity implements OnItemSelectedListener, OnClickListener {

	private Spinner spHour, spMinute, spTime;
	private Button calculate, cancel;
	private TextView answer;

	private String[] shour = { "1", "2", "3", "4", "5", "6", "7", "8", "9", "10", "11", "12" };
    private String[] sminute = { "00", "05", "10", "15", "20", "25", "30", "35", "40", "45", "50", "55" };
    private String[] stime = { "AM", "PM" };

    /** Date param for extra */
	public static final String DATE_PARAM = "date";
    /** Choice param for extra */
	public static final String CHOICE_PARAM = "choice";


	@Override
	protected void onCreate(Bundle savedInstanceState) {
		// TODO Auto-generated method stub
		super.onCreate(savedInstanceState);
		requestWindowFeature(Window.FEATURE_LEFT_ICON);
		setContentView(R.layout.isleep);
		getWindow().setFeatureDrawableResource(Window.FEATURE_LEFT_ICON, R.drawable.sleep32);

		// initializes controls
		initControls();

		// initializes arrayAdapter
		initArrayAdapter();



	} // end of onCreate method

	private void initArrayAdapter()
	{

	    ArrayAdapter<String> aa = new ArrayAdapter<String>( this,android.R.layout.simple_spinner_item, shour );
		aa.setDropDownViewResource( android.R.layout.simple_spinner_dropdown_item );
		spHour.setAdapter( aa );

	    ArrayAdapter<String> aa2 = new ArrayAdapter<String>( this,android.R.layout.simple_spinner_item, sminute );
		aa2.setDropDownViewResource( android.R.layout.simple_spinner_dropdown_item );
		spMinute.setAdapter( aa2 );

	    ArrayAdapter<String> aa3 = new ArrayAdapter<String>( this,android.R.layout.simple_spinner_item, stime );
	    aa3.setDropDownViewResource( android.R.layout.simple_spinner_dropdown_item );
		spTime.setAdapter( aa3 );

	}


	private void initControls(){

		spHour = (Spinner) findViewById (R.id.spSleepHour);
		spMinute = (Spinner) findViewById (R.id.spSleepMinute);
		spTime = (Spinner) findViewById (R.id.spSleepTime);
		calculate = (Button) findViewById (R.id.btSleepCalculate);
		cancel = (Button) findViewById (R.id.btSleepCancel);
 		answer = (TextView) findViewById (R.id.tvSleepResult);

		// providing listeners for each spinner
		spHour.setOnItemSelectedListener(this);
		spMinute.setOnItemSelectedListener(this);
		spTime.setOnItemSelectedListener(this);

		// providing listener for button
		calculate.setOnClickListener(this);
		cancel.setOnClickListener(this);

	} // end of initControls method


	public void onItemSelected(AdapterView<?> parent, View v, int pos, long id) {
		// TODO Auto-generated method stub

		switch( parent.getId() )
		{
		case R.id.spSleepHour:

			break;
		case R.id.spSleepMinute:

			break;
		case R.id.spSleepTime:

			break;
		}


	} // end of onItemSelected method

	public void onNothingSelected(AdapterView<?> arg0) {
		// TODO Auto-generated method stub

	}


	public void onClick(View v) {
		// TODO Auto-generated method stub

		switch( v.getId() )
		{
		case R.id.btSleepCalculate:
			getWakingTimes();
			break;
		case R.id.btSleepCancel:
			resetSpinnerValues();
			break;
		} // end of switch statement

	} // end of onClick method

	  /**
	   * Get times to wake. We add 14 minutes to fall asleep, and calculate the
	   * sleep cycles.
	   *
	   * @return list of times when to get up
	   */
	  public static Set<Date> getWakingTimes() {
	    return getWakingTime(new Date());
	  }

	  /**
	   * Get times to wake. We add 14 minutes to fall asleep, and calculate the
	   * sleep cycles.
	   *
	   * @param sleepTime
	   *            bed time
	   *
	   * @return list of times when to get up
	   */
	  public static Set<Date> getWakingTime(Date sleepTime) {
	    Calendar fallAsleep = Calendar.getInstance();
	    fallAsleep.setTime(sleepTime);
	    fallAsleep.add(Calendar.MINUTE, 14);
	    Set<Date> result = new TreeSet<Date>();
	    for (int i = 1; i <= 6; i++) {
	      fallAsleep.add(Calendar.MINUTE, 90);
	      result.add(fallAsleep.getTime());
	    }
	    return result;
	  }

	  /**
	   * Get sleeping times corresponding to a local time
	   *
	   * @param wakingTime
	   *            time to wake up !
	   * @return list of times one should go to bed to
	   */
	  public static Set<Date> getSleepingTimes(Date wakingTime) {

	    Set<Date> result = new TreeSet<Date>();
	    Calendar calendar = Calendar.getInstance();
	    calendar.setTime(wakingTime);
	    calendar.add(Calendar.MINUTE, -14);
	    calendar.add(Calendar.MINUTE, -(2 * 90));
	    for (int i = 3; i <= 6; i++) {
	      calendar.add(Calendar.MINUTE, -90);
	      result.add(calendar.getTime());
	    }
	    return result;

	  } // end of getSleepingTimes method


	  private void resetSpinnerValues()
	  {
		  spHour.setSelection(0);
		  spMinute.setSelection(0);
		  spTime.setSelection(0);

	  } // end of resetSpinnerValues method


		// MenuInflater

		@Override
	    public boolean onCreateOptionsMenu(Menu menu) {
	        getMenuInflater().inflate(R.menu.isleep_menu, menu);
	        return true;
	    }

		@Override
		public boolean onOptionsItemSelected(MenuItem item) {
			// TODO Auto-generated method stub
			switch (item.getItemId()) {
	        case R.id.isleep_home:
	        	finish();
	            break;
			}

			return super.onOptionsItemSelected(item);
	    }




}