VPR-Projekt/src/Data.java

import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.ArrayList;
import java.util.List;

/**
 * Data is a class to edit files.
 * @author Madeleine Vigier
 * @version 1.1
 */
public class Data {
    private String pathRead;

    public Data(String pathRead) {
        this.pathRead = pathRead;
    }

    /**
     * readData() is a method to split a file into lines and save them in an arraylist
     * @return Arraylist userlist
     * @author Madeleine Vigier, Sabine Gubitz
     * @version 1.1
     */
    public ArrayList<User> readData() {
        Path path = Paths.get(pathRead);

        try {
            List<String> rows = Files.readAllLines(path);
//Object class Meal is still missing and needs to be added
            if (pathRead.equals("menue.csv")) {
                ArrayList<String> menueList = new ArrayList<>();

                //Booleans for allergens
                boolean eggs = false, peanuts = false, fish = false, grains = false, crustaceans = false,
                        lupines = false, milk = false, nuts = false, sulfurDioxideAndSulfite = false, celeriac = false,
                        mustards = false, sesame = false, soy = false, molluscs = false;

                //Booleans for additives
                boolean antioxidant = false, artificialColours = false, flavourEnhancer = false, preservatives = false,
                        nitrate = false, picklingSalt = false, phosphate = false, artificialSweetener = false;

                for (String row : rows) {
                    String[] parts = row.split(":");

                    String date = parts[1];
                    String dish = parts[2];
                    String sideDish = parts[3];
                    String typ = parts[4];
                    String desertV = parts[5];
                    String desert = parts[6];
                    String allergens = parts[7];
                    if ( allergens != "") {
                        eggs = true;
                    }
                    allergens = parts[8];
                    if ( allergens != "") {
                        peanuts = true;
                    }
                    allergens = parts[9];
                    if ( allergens != "") {
                        fish = true;
                    }
                    allergens = parts[10];
                    if ( allergens != "") {
                        grains = true;
                    }
                    allergens = parts[11];
                    if ( allergens != "") {
                        crustaceans = true;
                    }
                    allergens = parts[12];
                    if ( allergens != "") {
                        lupines = true;
                    }
                    allergens = parts[13];
                    if ( allergens != "") {
                        milk = true;
                    }
                    allergens = parts[14];
                    if ( allergens != "") {
                        nuts = true;
                    }
                    allergens = parts[15];
                    if ( allergens != "") {
                        sulfurDioxideAndSulfite = true;
                    }
                    allergens = parts[16];
                    if ( allergens != "") {
                        celeriac = true;
                    }
                    allergens = parts[17];
                    if ( allergens != "") {
                        mustards = true;
                    }
                    allergens = parts[18];
                    if ( allergens != "") {
                        sesame = true;
                    }
                    allergens = parts[19];
                    if ( allergens != "") {
                        soy = true;
                    }
                    allergens = parts[20];
                    if ( allergens != "") {
                        molluscs = true;
                    }
                    String additives = parts[21];
                    if ( additives != "") {
                        antioxidant = true;
                    }
                    additives = parts[22];
                    if ( additives != "") {
                        artificialColours = true;
                    }
                    additives = parts[23];
                    if ( additives != "") {
                        flavourEnhancer = true;
                    }
                    additives = parts[24];
                    if ( additives != "") {
                        preservatives = true;
                    }
                    additives = parts[25];
                    if ( additives != "") {
                        nitrate = true;
                    }
                    additives = parts[26];
                    if ( additives != "") {
                        picklingSalt = true;
                    }
                    additives = parts[27];
                    if ( additives != "") {
                        phosphate = true;
                    }
                    additives = parts[28];
                    if ( additives != "") {
                        artificialSweetener = true;
                    }

                    //menueList.add(new Meal(date, dish, sideDish, typ, desertV, desert, eggs, peanuts, fish, grains,
                    //        crustaceans, lupines, milk, nuts, sulfurDioxideAndSulfite, celeriac, mustards, sesame,
                    //        soy, molluscs, antioxidant, artificialColours, flavourEnhancer, preservatives, nitrate,
                    //        picklingSalt, phosphate, artificialSweetener));
                }
                return null;//menueList;

            } else if (pathRead.equals("users.txt")){
                ArrayList<User> 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];
                    userList.add(new User(nameParent1,nameParent2,billAddress,phonenumber,nameChildren,password));
                }
                return userList;
//Object class Order is still missing and needs to be added
            } 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 desertV = parts[7];
                    String desertVCount = parts[8];
                    String desert = parts[9];
                    String desertCount = parts[10];
                    //orderList.add(new Order(date, meat, meatCount,vegi, vegiCount, vegan, veganCount, desertV,
                    // desertVCount, desert, desertCount))
                }
                return null;//orderList

            }
        } catch (IOException e) {
            e.printStackTrace();
        }
        return null;
    }


    /**
     * The method writeData 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 writeData(String pathWrite, ArrayList<String> listToWrite){
        if (pathWrite.equals("users.txt")) {

        } else if (pathWrite.equals("orders.txt")) {

        }
    }

}