lab3_1

import java.io.File;
import java.io.FileWriter;
import java.io.PrintWriter;
import java.util.Scanner;

public class Main {
    static public Scanner scan = new Scanner(System.in);

    public static int takeFlag(){
        final String error = "Проверьте корректность введенных данных!";
        int num = 0;
        boolean isIncorrect;
        do{
            isIncorrect = false;
            try{
                num = Integer.parseInt(scan.nextLine());
            }
            catch(Exception e){
                isIncorrect = true;
                System.out.println(error);
            }
            if(!isIncorrect && (num < 0 || num > 1)){
                isIncorrect = true;
                System.out.println(error);
            }
        }while(isIncorrect);
        return num;
    }

    public static String takeFileWay() {
        String way;
        boolean isIncorrect;
        do
        {
            isIncorrect = false;
            System.out.println("Введите путь к файлу");
            way = scan.nextLine();
            File file = new File(way);
            if (!file.exists() || !file.canWrite() ||!file.canRead() || !way.endsWith(".txt") || file.isDirectory()) {
                isIncorrect = true;
                System.out.println("Файл не найден, или неверный формат файла; повторите попытку ввода");
            }
        } while (isIncorrect);
        return way;
    }


    public static int sortSpace(String text, String[] some){
        int i = 0;
        int s;
        int k = 0;
        while (i < text.length()) {
            s = 0;
            while (i < text.length() && text.charAt(i) != ' ') {
                if(some[k] == null) {
                    some[k] = "";
                }
                some[k] = some[k] + text.charAt(i);
                i++;
                s++;
            }
            i++;
            if (s != 0) {
                k++;
            }
        }
        return k;
    }
    public static String takeFromConsole(){
        String text;
        text = scan.nextLine();
        return text;
    }
    public static String takeFromFile(){
        String way = takeFileWay();
        String text = "";
        try{
            Scanner br = new Scanner(new File(way));
            while(br != null) {
                text = text + br.nextLine();
            }
        } catch (Exception e){
            System.out.println("Incorrect data in File");
        }
        return text;
    }

    public static void conventText(String[] some, int k){
        for (int i = 0; i < k; i++) {
            if (i % 2 == 0) {
                some[i] = "(" + some[i] + ")";
            }
            else {
                some[i] = some[i].toUpperCase();
            }
        }
    }
    public static void resultInConsole(String[] some){
        int i = 0;
        while(some[i] != null) {
            System.out.print(some[i] + " ");
            i++;
        }
    }
    public static void resultInFile(String[] some){
        String way = takeFileWay();
        try(PrintWriter pw = new PrintWriter(new FileWriter(way, false))){
            int i = 0;
            while(some[i] != null) {
                pw.print(some[i] + " ");
                i++;
            }
        } catch(Exception e){
            System.err.println("Ошибка файла");
            System.out.println(e.getMessage());
        }
    }

    public static void choiseEnter(String[] some){
        System.out.println("1 - консоль, 0 - файл");
        int choise = takeFlag();
        if(choise == 1){
            String text = takeFromConsole();
            int k = sortSpace(text, some);
            conventText(some, k);
        }
        else{
            String text = takeFromFile();
            int k = sortSpace(text, some);
            conventText(some, k);
        }
    }

    public static void choiseResult(String[] some){
        System.out.println("1 - консоль, 0 - файл");
        int choise = takeFlag();
        if(choise == 1){
            resultInConsole(some);
        }
        else{
            resultInFile(some);
        }
    }

    public static void main(String[] args) {
        String[] some = new String[1000];
        choiseEnter(some);
        choiseResult(some);
    }
}