VPR-Projekt/src/GeneralMethods.java

import java.time.DayOfWeek;
import java.time.LocalDate;
import java.time.format.DateTimeFormatter;
import java.util.Locale;

/**
 * GeneralMethods is a class for commen public methods.
 *
 * @author Felix Wöstemeyer
 * @version 1.4
 */
public class GeneralMethods {

    /**
     * The method getDayNumberNew() gets the Number of day in week
     *
     * @param dateString date as String e.g. 12.12.2022
     * @return the Number of day in week
     * @author Madeleine Vigier
     */
    public static String getDayNumberNew(String dateString) {
        //https://docs.oracle.com/javase/8/docs/api/java/time/format/DateTimeFormatter.html
        DateTimeFormatter formatter = DateTimeFormatter.ofPattern("dd.MM.yyyy");
        formatter = formatter.withLocale(Locale.GERMANY);  // Locale specifies human language for translating, and cultural norms for lowercase/uppercase and abbreviations and such. Example: Locale.US or Locale.CANADA_FRENCH
        LocalDate date = LocalDate.parse(dateString, formatter);

        DayOfWeek day = date.getDayOfWeek();
        return getDayName(day.getValue());
    }

    /**
     * The method getDayName() gets the weekday
     *
     * @param dayNumber dayNumber e.g. 1 for Monday
     * @return weekday
     * @author Madeleine Vigier
     */
    public static String getDayName(int dayNumber) {
        if (dayNumber == 1) {
            return "Montag";
        }
        if (dayNumber == 2) {
            return "Dienstag";
        }
        if (dayNumber == 3) {
            return "Mittwoch";
        }
        if (dayNumber == 4) {
            return "Donnerstag";
        }
        if (dayNumber == 5) {
            return "Freitag";
        }

        return null;
    }

//    /**The method writeData saves the given data to a certain file.
//     *
//     * @param pathWrite the given filepath to write
//     * @param data the data to be saved
//     */
//    public static void writeData(String pathWrite, ArrayList<String> data){
//        try{
//            BufferedWriter writer = new BufferedWriter(new FileWriter(pathWrite));
//            for (String d : data) {
//                writer.write(d);
//                writer.newLine();
//            }
//            writer.close();
//        } catch (IOException e) {
//            e.printStackTrace();
//        }
//    }
//
//    /**
//     * Author: Sabine Gubitz
//     *ddd
//     * The method read Data interprets a file and returns an useable list for other methods.
//     * Files to be read have to use : as a divider between attributes
//     *
//     * @param pathRead determines the filename of the file that will be read
//     * @return menueList, userList, orderList depending on Data read
//     */
//    public static ArrayList<String> readData(String pathRead) {
//        Path path = Paths.get(pathRead);
//
//        try {
//            List<String> rows = Files.readAllLines(path);
//
//            if (pathRead.equals("menue.txt")) {
//                ArrayList<String> menueList = new ArrayList<>();
//
//                for (String row : rows) {
//                    String[] parts = row.split(":");
//
//                    String day = parts[0];
//                    String date = parts[1];
//                    String meat = parts[2];
//                    String vegi = parts[3];
//                    String vegan = parts[4];
//                    String desert1 = parts[5];
//                    String desert2 = parts[6];
//                    menueList.add(day + "," + date + "," + meat + "," + vegi + "," + vegan + "," + desert1 + "," + desert2);
//                }
//                return menueList;
//
//            } else if (pathRead.equals("users.txt")){
//                ArrayList<String> userList = new ArrayList<>();
//
//                for (String row : rows) {
//                    String[] parts = row.split(":");
//
//                    String nameParent1 = parts[0];
//                    String nameParent2 = parts[1];
//                    String billAddress = parts[2];
//                    String phonenumber = parts[3];
//                    String nameChildren = parts[4];
//                    String password = parts[5];
//                }
//                return userList;
//
//            } else if (pathRead.equals("orders.txt")) {
//                ArrayList<String> orderList = new ArrayList<>();
//
//                for (String row : rows) {
//                    String[] parts = row.split(":");
//
//                    String date = parts[0];
//                    String meat = parts[1];
//                    String meatCount = parts[2];
//                    String vegi = parts[3];
//                    String vegiCount = parts[4];
//                    String vegan = parts[5];
//                    String veganCount = parts[6];
//                    String desert1 = parts[7];
//                    String desert1Count = parts[8];
//                    String desert2 = parts[9];
//                    String desert2Count = parts[10];
//                }
//                return orderList;
//
//            }
//        } catch (IOException e) {
//            e.printStackTrace();
//        }
//        return null;
//    }
//
//
//    /**
//     * The method writeData2 writes the data of a List into a txt file.
//     * @param pathWrite determines the filename of the file that will be written
//     * @param listToWrite determines which ArrayList is to be used for writing the file
//     */
//    public void writeData2 (String pathWrite, ArrayList<String> listToWrite){
//        if (pathWrite.equals("users.txt")) {
//
//        } else if (pathWrite.equals("orders.txt")) {
//
//        }
//    }

}