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package tim.prune.function.weather;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.TimeZone;
import tim.prune.gui.DisplayUtils;
/**
* Model for results of weather forecast from openweathermap.org
*/
public class WeatherResults
{
/** List of forecasts */
private ArrayList<SingleForecast> _forecastList = new ArrayList<SingleForecast>();
/** Flag whether the units are metric (Celsius) or not (Fahrenheit) */
private boolean _tempsCelsius = true;
/** Location name */
private String _locationName = null;
/** Last update timestamp */
private String _updateTime = null;
/** Sunrise and sunset times as HH:MM */
private String _sunriseTime = null, _sunsetTime = null;
/**
* Add a single forecast to this model (for the current weather)
* @param inResults current results
*/
public void setForecast(SingleForecast inResults)
{
_forecastList.clear();
if (inResults != null) {
_forecastList.add(inResults);
}
}
/**
* Add a list of forecasts to this model
* @param inList list of forecasts to add
*/
public void setForecasts(ArrayList<SingleForecast> inList)
{
_forecastList.clear();
if (inList != null && inList.size() > 0) {
_forecastList.addAll(inList);
}
}
/** @return the number of forecasts */
public int getNumForecasts()
{
return _forecastList.size();
}
/**
* @param inIndex index of forecast starting from 0
* @return the specified forecast
*/
public SingleForecast getForecast(int inIndex)
{
if (inIndex < 0 || inIndex >= getNumForecasts()) {
return null;
}
return _forecastList.get(inIndex);
}
/**
* Clear the list of forecasts
*/
public void clear()
{
_forecastList.clear();
_sunriseTime = _sunsetTime = null;
_updateTime = null;
}
/**
* @param inCelsius true for celsius, false for fahrenheit
*/
public void setTempsCelsius(boolean inCelsius)
{
_tempsCelsius = inCelsius;
}
/** @return true if this forecast uses Celsius */
public boolean isCelsius() {
return _tempsCelsius;
}
/**
* Set the sunrise and sunset times (only from current weather, not from forecast)
* @param inRiseTime sunrise time as YYYY-MM-DDThh:mm:ss
* @param inSetTime sunset time as YYYY-MM-DDThh:mm:ss
*/
public void setSunriseSunsetTimes(String inRiseTime, String inSetTime)
{
_sunriseTime = _sunsetTime = null;
if (inRiseTime != null && inRiseTime.length() == 19
&& inSetTime != null && inSetTime.length() == 19)
{
// Convert from UTC to system's time zone (not necessarily target's time zone!)
_sunriseTime = convertToLocalTimezone(inRiseTime.substring(11, 16));
_sunsetTime = convertToLocalTimezone(inSetTime.substring(11, 16));
}
}
/** @return sunrise time as HH:MM */
public String getSunriseTime() {
return _sunriseTime;
}
/** @return sunset time as HH:MM */
public String getSunsetTime() {
return _sunsetTime;
}
/** @param inName location name */
public void setLocationName(String inName) {
_locationName = inName;
}
/** @return location name */
public String getLocationName() {
return _locationName;
}
/** @param inTime timestamp of forecast */
public void setUpdateTime(String inTime) {
_updateTime = inTime;
}
/** @return timestamp of last update */
public String getUpdateTime()
{
return _updateTime;
}
/**
* Convert the given UTC time (HH:MM) into current timezone of computer
* @param inTimeString sunrise/sunset time in UTC (HH:MM)
* @return time in this timezone (HH:MM)
*/
private static String convertToLocalTimezone(String inTimeString)
{
if (inTimeString != null && inTimeString.length() == 5)
{
try
{
final int hour = Integer.parseInt(inTimeString.substring(0, 2));
final int min = Integer.parseInt(inTimeString.substring(3));
Calendar utcCal = Calendar.getInstance(TimeZone.getTimeZone("GMT"));
utcCal.set(Calendar.HOUR_OF_DAY, hour);
utcCal.set(Calendar.MINUTE, min);
// Make a second calendar in the current time zone and apply values
Calendar currCal = Calendar.getInstance();
currCal.setTimeInMillis(utcCal.getTimeInMillis());
return DisplayUtils.makeTimeString(currCal.get(Calendar.HOUR_OF_DAY),
currCal.get(Calendar.MINUTE));
}
catch (NumberFormatException e) {} // ignore, just drop through
}
// Couldn't be parsed / converted
return inTimeString;
}
}
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