package hr.fer.oop.lab4.Zad2;

import java.io.*;
import java.nio.file.FileVisitor;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.*;

public class LabMain extends LabByteReader{

    public static void main(String[] args){
        FileVisitor<Path> visitor = new LabByteReader();
        Path racuni = Paths.get("racuni/");
        TreeMap<String, Double> najskuplji = new TreeMap<>();
        TreeMap<String, Integer> najprodavaniji = new TreeMap<>();
        TreeMap<String, Double> najveciUdio = new TreeMap<>();
        int brnajs = 0;
        int brud = 0;
        int brprod = 0;

        try{
            Files.walkFileTree(racuni, visitor);
            HashMap<String, String> artikli = ((LabByteReader) visitor).getArticles();
            Writer bw = new BufferedWriter(new OutputStreamWriter(new BufferedOutputStream(new FileOutputStream("labos.txt"))));
            int prodan = 0;

            for(String a: artikli.keySet()){
                String b = artikli.get(a);
                String[] nesto = b.split("");
                try {
                    double cijena = Double.parseDouble(nesto[0]);
                    int broj = Integer.parseInt(nesto[1]);
                    najskuplji.put(a, cijena);
                    najprodavaniji.put(a, broj);
                    Double udio = cijena * broj;
                    najveciUdio.put(a, udio);
                }
                catch (Exception e){
                    continue;
                }
            }
            double prosjek = articlenm/billNm;

            bw.write("10 najskupljih artikala\n");
            for (String a : najskuplji.keySet()){
                bw.write(a+" " + najskuplji.get(a)+"\n");
                brnajs++;
                if (brnajs>=10) break;
            }

            bw.write("\n10 najprodavanijih artikala\n");
            for (String a : najprodavaniji.keySet()){
                bw.write(a +" " + najprodavaniji.get(a)+"\n");
                brprod++;
                if (brprod>=10) break;
            }

            for (String a : najprodavaniji.keySet()){
                int temp = najprodavaniji.get(a);
                if(temp>prodan) prodan=temp;
            }

            System.out.println(prodan);
            bw.write("\n10 artikala koji su generirali najveći udio\n");
            for (String a :najveciUdio.keySet()){
                bw.write(a+" "+ najveciUdio.get(a) +"\n");
                brud++;
                if (brud>=10) break;
            }

            bw.write(String.valueOf("\n"+prosjek));

            bw.flush();
            bw.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}