package ac.uk.napier.set07110Coursework;

import java.util.ArrayList;
import java.util.Collections;

import org.openstreetmap.gui.jmapviewer.Coordinate;

import mapgui.MapGui;
import weather.WeatherData;

/**
 * QUESTION 13
 *
 * If you decide to answer question 13 then the main method below should be used as the entry point for your application
 * You may use as many other classes as you feel necessary as long as all code is supplied
 *
 * Remember to add -Xmx1024m to the VM arguments using menu run --> run configurations in eclipse
 */
public class Answer13 {
    static ArrayList<Double> temperature= new ArrayList<>();
    public static void main(String[] args) {
        System.out.println("Question 13");
        /*
         * Add your code below
         */
        doQuestion13();

    }

    private static void doQuestion13(){
        double station1Median =0;
        double station2Median =0;
        int stationId= 3316;
        boolean flag = true;
        ArrayList<Coordinate> coordinates = new ArrayList<>();
        WeatherStationRetriever weatherStation = new WeatherStationRetriever(); //new weatherstation object
        //temperature= weatherStation.getStationDetails(3316).

        while(flag) {

            for(int i=0; i<weatherStation.getStationDetails(stationId).getWeatherReadings().size(); i++) {
                temperature.add(weatherStation.getStationDetails(stationId).getWeatherReadings().get(i).getTemperature());

            }
            Collections.sort(temperature);

            if(stationId ==3316) {
                station1Median = medianFinder(temperature.size());
                coordinates.add(new Coordinate(weatherStation.getStationDetails(stationId).getLat(), weatherStation.getStationDetails(stationId).getLon()));


            }
            if(stationId==3166) {
                station2Median = medianFinder(temperature.size());
                coordinates.add(new Coordinate(weatherStation.getStationDetails(stationId).getLat(), weatherStation.getStationDetails(stationId).getLon()));
                flag = false;
            }
            stationId= 3166;


        }


        double difference =station2Median-station1Median;
        System.out.println("The difference in temperature is: " + Math.abs(difference) + " Degreees");
        MapGui.showMap(coordinates);


    }
    public static double medianFinder(int listSize) {
        double medianTemperature =0;

        if (listSize % 2 == 0)
            medianTemperature = (temperature.get(temperature.size()/2) + temperature.get(temperature.size()/2 - 1))/2;
        else {

            medianTemperature = (double)(temperature.size() - 1)/2;
        medianTemperature = temperature.get((temperature.size()-1)/2);



    }


                return medianTemperature;
    }
}