package pr2;

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

public class DailyTemperatureList implements TemperatureConstants {
   
   private ArrayList<DailyTemperature> list;
   
   public DailyTemperatureList() {
      list = new ArrayList<DailyTemperature>();
   }
   
   public DailyTemperature findTemperature(int month, int day) {
      for (int i = 0; i < list.size(); i++)
         if ((list.get(i).getMonth() == month)
               && (list.get(i).getDay() == day))
            return list.get(i);
      return null;
   }
   
   public void addActualLowAndHigh(int month, int day, int low, int high) {
      DailyTemperature dt = findTemperature(month,day);
      if (dt == null) {
         dt = new DailyTemperature(month,day);
         list.add(dt);
      }
      dt.setActualLow(low);
      dt.setActualHigh(high);
   }
   
   public void addPredictedLowAndHigh(int month, int day, int n, int low, int high) {
      MonthAndDay later = MonthAndDay.getLater(month, day, n);
      int newMonth = later.getMonth();
      int newDay = later.getDay();
      DailyTemperature dt = findTemperature(newMonth,newDay);
      if (dt == null) {
         dt = new DailyTemperature(newMonth,newDay);
         list.add(dt);
      }
      dt.setPredictedHigh(n,high);
      dt.setPredictedLow(n,low);
   }
   
   public void setPredictedLow(int month, int day, int daysLater, int low) {
      DailyTemperature dt = findTemperature(month,day);
      if (dt == null)
         dt = new DailyTemperature(month,day);
      dt.setPredictedLow(daysLater,low);
   }
   
   public void setFromTemperaturePrediction(TemperaturePrediction tp) {
      int month = tp.getMonth();
      int day = tp.getDay();
      addActualLowAndHigh(month,day,tp.getActualLow(),tp.getActualHigh());
      for (int i=1;i<DATA_SIZE;i++)
         addPredictedLowAndHigh(month,day,i,tp.getPredictedLow(i),tp.getPredictedHigh(i));
   }
   
   // Not used in this project
   public void convertToDifferences() {
      for (int i=0;i<list.size();i++)
         list.get(i).convertToDifferences();
   }
   
   public void print() {
      Collections.sort(list);
      for (int i=0;i<list.size();i++)
         System.out.println(list.get(i));
   }
   
   public String toString() {
      StringBuilder sb = new StringBuilder();
      for (int i=0;i<list.size();i++)
         sb.append(list.get(i).toString() + "\n");
      return sb.toString();
   }

}