Atyom <3

package assignments;

import java.text.ParseException;
import java.util.*;

import javax.swing.JOptionPane;
import java.io.*;
import java.util.concurrent.ThreadLocalRandom;
import java.io.IOException;
import java.time.format.DateTimeFormatter;
import java.time.LocalDateTime;

public class Assignments {
//useful links
    //https://howtodoinjava.com/java/io/how-to-create-a-new-file-in-java/
//page page 738
    // https://d2l.cbe.ab.ca/d2l/le/content/556822/viewContent/7796065/View

    public static String[] sales;

    public static void main(String[] args) {
        int runOnce = 0;
        if (runOnce == 0) {
            runOnce = example();
        }

        GUI();

    }

    public static int example() {

        try {
            readFile("write.txt");
        } catch (IOException e) {
            System.out.println("error in example() " + e);
        }

        return 1;
    }

    //TODO call the sale, choose which box, remove box
    public static void GUI() {

        int boxAmount = 5;  //choose amount of boxes
        int[] scentBoxes = new int[boxAmount];

        String employee = askForString("Please enter employee name");    //enter employee name
        String JAName = askForString("Please enter JA company name");
        scentBoxes = populateBoxesAskUser(scentBoxes, askForString("Please enter box scent number one"), askForString("Please enter box scent number two"));
        while (true) {
            int currentChoice = askForOptions3("Log a sale", "Show Boxes", "Save files and quit");
            switch (currentChoice) {
                case 0: //log a sale

                    int removedBox = logSale(employee, JAName, scents, scentBoxes);

                    scentBoxes[removedBox] = 0;
                    break;
                case 1: // print out array
                    printArray(scents, scentBoxes);
                    break;
                case 2: // save and quit
                    try {
                        readLineAmount("write.txt");
                        writeFile("write.txt", salesLogs);
                        System.exit(0);
                    } catch (Exception e) {
                        try {
                            FileWriter fw = new FileWriter("write.txt", true);
                            System.out.println("New file created!");
                        } catch (Exception B) {

                        }
                        System.out.println("Error in case 3 GUI");
                    }
                    break;
                default:
                    break;

            }
        }
    }
    public static int salesAmount = 0;
    public static String[] salesLogs = new String[5];
    public static String[] scents = new String[3];

    public static int logSale(String names, String JAName, String[] scents, int[] scentBoxes) {
        DateTimeFormatter dtf = DateTimeFormatter.ofPattern("yyyy/MM/dd HH:mm:ss");
        LocalDateTime now = LocalDateTime.now();
        int boxChoice = Integer.parseInt(JOptionPane.showInputDialog("Choose the box no. you've sold"));
        if (scentBoxes[boxChoice] != 0) {
            System.out.println(names + " From the  " + JAName + " Company " + "has sold a " + scents[scentBoxes[boxChoice]] + " scent cube no." + boxChoice + " On " + dtf.format(now));
            salesLogs[salesAmount] = names + " From the  " + JAName + " Company " + "has sold a " + scents[scentBoxes[boxChoice]] + " scent cube no." + boxChoice + " On " + dtf.format(now);
            salesAmount += 1;
        } else {
            System.out.println("Error, box already sold");
        }
        return boxChoice;
    }

    public static void readFile(String fileName) throws IOException {

        String token1 = "";

        Scanner inFile1 = new Scanner(new File(fileName)).useDelimiter("\\s*null\\s*");

        List<String> temps = new ArrayList<String>();

        // while loop
        while (inFile1.hasNext()) {
            // find next line
            token1 = inFile1.next();
            temps.add(token1);
        }
        inFile1.close();

        String[] tempsArray = temps.toArray(new String[0]);

        for (String s : tempsArray) {
            System.out.println(s);
        }
    }

    public static void writeFile(String filename, String[] x) throws IOException {

        FileWriter fw = new FileWriter(filename, true);
        for (int i = 0; i < linecount; i++) {
            fw.write(String.format("%n"));
        }
        for (int i = 0; i < x.length; i++) {

            fw.write(x[i] + "" + String.format("%n"));

        }

        fw.close();
    }

    public static int linecount;

    public static void readLineAmount(String fileName) throws Exception {
        File f1 = new File(fileName);
        linecount = 0;            //Intializing linecount as zero
        FileReader fr = new FileReader(f1);  //Creation of File Reader object
        BufferedReader br = new BufferedReader(fr);    //Creation of File Reader object
        String s;
        while ((s = br.readLine()) != null) //Reading Content from the file line by line
        {
            linecount++;               //For each line increment linecount by one

        }
        fr.close();
        System.out.println("Number of lines in the Files:" + linecount);
    }

    public static void printArray(String[] scents, int[] scentBoxes) {
        for (int i = 0; i < scentBoxes.length; i++) {
            System.out.println("Box no." + i + " is " + scents[scentBoxes[i]]);
        }

    }

    public static int askForOptions(String option1, String option2) {
        int choice = 0;

        String[] options = new String[]{option1, option2};
        choice = JOptionPane.showOptionDialog(null, option1 + " or " + option2 + "?", "Choose an option",
                JOptionPane.YES_NO_OPTION, JOptionPane.INFORMATION_MESSAGE, null, options, options[0]);

        return choice;
    }

    public static int askForOptionsTitle(String option1, String option2, int boxNumber) {
        int choice = 0;

        String[] options = new String[]{option1, option2};
        choice = JOptionPane.showOptionDialog(null, option1 + " or " + option2 + "?", "Choose box no." + boxNumber,
                JOptionPane.YES_NO_OPTION, JOptionPane.INFORMATION_MESSAGE, null, options, options[0]);

        return choice;
    }

    public static int askForOptions3(String option1, String option2, String option3) {
        int choice = 0;

        String[] options = new String[]{option1, option2, option3};
        choice = JOptionPane.showOptionDialog(null, option1 + " or " + option2 + "?", "Choose an option",
                JOptionPane.YES_NO_OPTION, JOptionPane.INFORMATION_MESSAGE, null, options, options[0]);

        return choice;
    }

    public static String askForString(String info) {

        boolean ok = false;
        String i = "";
        while (!ok) {
            try {
                i = (JOptionPane.showInputDialog(info));
                ok = true;
                return i;
            } catch (Exception e) {
                JOptionPane.showMessageDialog(null, "Input invalid, please try again.");
            }

        }
        return i;

    }

    public static int[] populateBoxesAskUser(int[] scentBoxes, String box1, String box2) {
        int currentChoice = 0;
        scents[0] = "none";
        scents[1] = box1;
        scents[2] = box2;
        for (int i = 0; i < scentBoxes.length; i++) {
            currentChoice = askForOptionsTitle(box1, box2, i);

            if (currentChoice == 0)//compensate for the fact that scent 0 is null
            {
                currentChoice = 1;
            } else if (currentChoice == 1) {
                currentChoice = 2;
            }

            scentBoxes[i] = currentChoice;
        }
        return scentBoxes;
    }

}