package io.zipcoder;

import java.io.FileNotFoundException;
import java.io.FileReader;
import java.util.*;

public class WC {


    private Iterator<String> si;

    public WC(String fileName) {
        try {
            Scanner scanner = new Scanner(new FileReader(fileName));
            scanner.useDelimiter("[\\p{Punct}\\s]+");
            this.si = scanner;
        } catch (FileNotFoundException e) {
            System.out.println(fileName + " Does Not Exist");
            System.exit(-1);
        }
    }

//    public WC(Iterator<String> si) {
//        this.si = si;
//
//    }
//
//    public Iterator<String> getSi() {
//
//        return si;
//    }


    public HashMap<String, Integer> readFile() {
        HashMap<String, Integer> wordCount = new HashMap<String, Integer>();

        while(si.hasNext()) {
            String key = si.next().toLowerCase();
            if(wordCount.containsKey(key)) {
                int value = wordCount.get(key);
                value++;
                wordCount.put(key, value);
            } else {
                wordCount.put(key, 1);
            }
        }
        return wordCount;
    }

    public static void printWordCount(HashMap<String, Integer> myMap) {
        for (String word: myMap.keySet()){

            String key = word;
            String value = myMap.get(word).toString();
            System.out.println(key + ": " + value);


        }
    }

    public static LinkedHashMap<String, Integer> sortList(HashMap<String, Integer> myMap) {
        List<String> mapKeys = new ArrayList<String>(myMap.keySet());
        List<Integer> mapValues = new ArrayList<Integer>(myMap.values());
        Collections.sort(mapValues);
        Collections.sort(mapKeys);

        LinkedHashMap<String, Integer> sortedMap = new LinkedHashMap<String, Integer>();
        Iterator<Integer> valueIt = mapValues.iterator();
        while (valueIt.hasNext()) {
            Integer val = valueIt.next();
            Iterator<String> keyIt = mapKeys.iterator();

            while (keyIt.hasNext()) {
                String key = keyIt.next();
                Integer comp1 = myMap.get(key);
                Integer comp2 = val;

                if (comp1.equals(comp2)) {
                    keyIt.remove();
                    sortedMap.put(key, val);
                    break;
                }
            }
        }
        return sortedMap;


//        Map<String, Integer> sorted = myMap
//                .entrySet()
//                .stream()
//                .sorted(comparingByValue())
//                .collect(
//                        toMap(e -> e.getKey(), e -> e.getValue(), (e1, e2) -> e2,
//                                LinkedHashMap::new));

    }

    public static void main(String[] args) {
        String fileName = "./../../LittleWomen.txt";
        String fullPath = WC.class.getResource(fileName).getFile();
        WC wc = new WC(fullPath);
        HashMap<String, Integer> result = wc.readFile();
        printWordCount(sortList(result));



    }

}