package Documenthandler;

import java.io.File;
import java.io.FileNotFoundException;
import java.util.ArrayList;
import java.util.Scanner;

public class TextFile {


    public void ReadTextFile() throws FileNotFoundException {

        /**
         * creating String lines so we can fill the line with the text from textdocs.
         */
        String line = "";
        String line1 = "";
        String line2 = "";


        /**
         * creating scanners to read the lines from the 3 textdocs
         * using delimeters to break the code and handling white space.
         */
        Scanner scan = (new Scanner(new File("C:/textfile/src/DocumentHandlerTests/engwords.txt"))).useDelimiter(",\\s*");
        Scanner scan1 = (new Scanner(new File("C:/textfile/src/DocumentHandlerTests/numbers.txt"))).useDelimiter(",\\s*");
        Scanner scan2 = (new Scanner(new File("C:/textfile/src/DocumentHandlerTests/plaintext.txt"))).useDelimiter(",\\s*");
        ArrayList temps = new ArrayList();

        /**
         * create while loop to read the whole text and implement it in String line
         * insert line into Arraylist temp.
         * close scanner so it prevent nested loop.
         */
        while (scan.hasNext()) {
            line = scan.next();
            temps.add(line);
        }

        scan.close();

        while (scan1.hasNext()) {
            line1 = scan1.next();
            temps.add(line1);
        }

        scan1.close();

        while (scan2.hasNext()) {
            line2 = scan2.next();
            temps.add(line2);
        }

        scan2.close();

        /**
         * creating a string array where we put elements from arraylist into string array [0], [1], [2] represent which files we wanna read from
         */
        String[] tempsArray = (String[]) temps.toArray(new String[0]);
        tempsArray = (String[]) temps.toArray(new String[1]);
        tempsArray = (String[]) temps.toArray(new String[2]);
        System.out.println(tempsArray[2]);
    }

    /**
     * checking if the words able exist in test class
     * @throws FileNotFoundException
     */
    public void CheckFile() throws FileNotFoundException {
        Scanner scan = (new Scanner(new File("C:/textfile/src/DocumentHandlerTests/engwords.txt"))).useDelimiter(",\\s*");
    }

    /**
     * testing if delimeter object works when inserting text into an String array and it did not!
     * @throws FileNotFoundException
     */
    public void CheckWithoutDelitMeter() throws FileNotFoundException {
        Scanner scan = new Scanner(new File("C:/textfile/src/DocumentHandlerTests/engwords.txt"));
        String line = "";
        ArrayList temps = new ArrayList();

        while (scan.hasNext()) {
            line = scan.next();
            temps.add(line);
        }

        scan.close();
        String[] tempsArray = (String[]) temps.toArray(new String[0]);
        System.out.println(tempsArray[0]);
    }
}