import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.*;
import java.util.ArrayList;
import java.util.Comparator;
import java.util.Scanner;

public class Gui {
    /**
     * The Main class is where we load all the files with the persons and the locals on a object file.
     * If the object file does not exist we load the persons from a .txt file and the locals from other .txt file.
     */
    private ArrayList<People> PeopleList = new ArrayList<>();
    private ArrayList<People> Enrolled_Event = new ArrayList<>();
    private ArrayList<Locals> LocalsList = new ArrayList<>();


    public static void main(String[] args) {
        new Gui();
    }

    Gui() {
        copyFromObjectFile();
        First_Menu first_menu = new First_Menu();

    }

    class First_Menu extends JFrame {
        private javax.swing.JLabel username;
        private javax.swing.JLabel password;

        private javax.swing.JButton createUser;
        private javax.swing.JButton login;

        private javax.swing.JTextField username_text;
        private javax.swing.JTextField password_text;

        private String user, pass;

        private Register_menu register_menu;
        private First_Menu first_menu;


        public First_Menu() {
            this.setPreferredSize(new Dimension(350, 250));
            this.setTitle("Menu");
            this.setLocation(100, 100);
            this.setVisible(true);
            this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
            this.setLayout(new FlowLayout());


            username = new JLabel("Username:");
            this.add(username);
            username_text = new JTextField();
            this.add(username_text);
            username_text.setPreferredSize(new Dimension(60, 20));


            password = new JLabel("Password:");
            this.add(password);
            password_text = new JTextField();
            this.add(password_text);
            password_text.setPreferredSize(new Dimension(60, 20));

            login = new JButton("Login");
            login.addActionListener(actionEvent -> {


            });
            this.add(login);


            createUser = new JButton("Create User");
            createUser.addActionListener(actionEvent -> {
                this.setVisible(false);
                register_menu = new Register_menu();
                register_menu.setSize(300,250);
                username_text.setText("");
                password_text.setText("");
                register_menu.setVisible(true);
            });
            this.add(createUser);


            this.pack();
        }


    }

    class Register_menu extends JFrame {
        private javax.swing.JLabel username;
        private javax.swing.JLabel password;
        private javax.swing.JTextField username_text;
        private javax.swing.JTextField password_text;

        private javax.swing.JButton regist;


        public Register_menu() {
            this.setPreferredSize(new Dimension(350, 250));
            this.setTitle("Register");
            this.setLocation(100, 100);
            this.setVisible(false);
            this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
            this.setLayout(new FlowLayout());

            username = new JLabel("Username: ");
            this.add(username);
            username_text = new JTextField();
            this.add(username_text);
            username_text.setPreferredSize((new Dimension(60, 20)));

            password = new JLabel("Password:");
            this.add(password);
            password_text = new JTextField();
            this.add(password_text);
            password_text.setPreferredSize(new Dimension(60, 20));

            regist = new JButton("Register");
            this.add(regist);
            regist.addActionListener(e -> {
                People temp;

                if ((temp = findPersonUser(username_text.getText())) != null) {
                    temp.setPassword(password_text.getText());
                    JOptionPane.showMessageDialog(new Frame(),"Password Created/Updated");
                    this.setVisible(false);
                    first_menu = new First_Menu();
                    first_menu.setVisible(true);
                } else {
                    JOptionPane.showMessageDialog(new Frame(), "Username doesnt exist");
                }
            });
        }

    }


    /**
     * Check if a person is on a event.
     *
     * @param person Person to check if is on event.
     * @return True is it is, ou False if not.
     */
    private boolean check_if_Enrolled(People person) {
        int i = 0;
        while (i < Enrolled_Event.size()) {
            if (person == Enrolled_Event.get(i)) {
                return true;
            }
            i++;
        }
        return false;
    } // Checks if person is on the enrolled List

    private People findperson(String Username, String password) {
        int i = 0;
        while (i < PeopleList.size()) {
            if (PeopleList.get(i).getUsername().equalsIgnoreCase(Username) && PeopleList.get(i).getPassword().equalsIgnoreCase(password)) {
                return PeopleList.get(i);
            }
            i++;
        }
        return null;
    } //Finds a person based on keyword for Login

    private People findPersonUser(String user) {
        for(int i = 0; i<PeopleList.size(); i++) {
            if(PeopleList.get(i).getUsername().equalsIgnoreCase(user)) {
                return PeopleList.get(i);
            }
        }

        return null;
    }

    private boolean Usernamecheck(String Username) {
        int i = 0;
        while (i < PeopleList.size()) {
            if (PeopleList.get(i).getUsername().equals(Username)) {
                return true;
            }
            i++;
        }
        return false;
    }

    private void Chosing_locals(People person) { // alterar para nao se inscrever duas vezes no mesmo local
        System.out.printf("/Locals Choosen/\n");
        System.out.println(person.getLocals_votes());


        Scanner sc = new Scanner(System.in);
        ArrayList<Locals> temp = person.getLocals_votes();

        while (true) {
            System.out.printf("Which Local would u like to Change? [1-5|6->exit]\n");
            String x = sc.nextLine();

            switch (x) {
                case "1":
                    Locals local = Search_Locals();
                    if (temp.get(0) != null) {
                        Locals old_local = temp.get(0);
                        old_local.Change_votes(0);
                    }
                    temp.set(0, local);
                    local.Change_votes(1);
                    break;
                case "2":
                    local = Search_Locals();
                    if (temp.get(1) != null) {
                        Locals old_local = temp.get(1);
                        old_local.Change_votes(0);
                    }
                    temp.set(1, local);
                    local.Change_votes(1);
                    break;
                case "3":
                    local = Search_Locals();
                    if (temp.get(2) != null) {
                        Locals old_local = temp.get(2);
                        old_local.Change_votes(0);
                    }
                    temp.set(2, local);
                    local.Change_votes(1);
                    break;
                case "4":
                    local = Search_Locals();
                    if (temp.get(3) != null) {
                        Locals old_local = temp.get(3);
                        old_local.Change_votes(0);
                    }
                    temp.set(3, local);
                    local.Change_votes(1);
                    break;
                case "5":
                    local = Search_Locals();
                    if (temp.get(4) != null) {
                        Locals old_local = temp.get(4);
                        old_local.Change_votes(0);
                    }
                    temp.set(4, local);
                    local.Change_votes(1);
                    break;
                case "6":
                    break;
                default:
                    System.out.printf("Error -> Invalid Input\n");
            }
            System.out.printf("Wanna change another Local?[y/n]\n");
            String y = sc.nextLine();
            if (y.equalsIgnoreCase("y")) continue;

            else {
                System.out.printf("New votes --> \n");
                print_locals_choosen(person);
                break;
            }
        }
    }

    private Locals Search_Locals() {
        // asks which local the user would like to add and searches it in the list returning it when found
        printlocals();
        System.out.printf("-->Chose a Local!\n");
        Scanner sc = new Scanner(System.in);
        while (true) {
            String x = sc.nextLine();
            if (x.matches(".*\\d.*")) System.out.printf("\nError -> Invalid Input\n");

            else {
                int i = 0;
                while (i < LocalsList.size()) {
                    if (LocalsList.get(i).getName().equalsIgnoreCase(x)) { //Search by name (unique) and returns it
                        return LocalsList.get(i); //Returns Local
                    }
                    i++;
                }
                System.out.printf("Ups, Its seems like that Local doesn't exist!\nTry again!\n-->");
            }
        }
    }

    //Files Methods
    private void copyFromObjectFile() {
        try {
            ObjectInputStream in = new ObjectInputStream(new FileInputStream(new File("Object.dat")));
            ArrayList<People> temp_list_people = (ArrayList<People>) in.readObject();

            PeopleList = temp_list_people;

            ArrayList<Locals> temp_list_locals = (ArrayList<Locals>) in.readObject();

            LocalsList = temp_list_locals;

            ArrayList<People> temp_list_enrolled = (ArrayList<People>) in.readObject();

            Enrolled_Event = temp_list_enrolled;


            in.close();
        } catch (FileNotFoundException not_found) {
            System.out.printf("Error -> People.dat Not found!\n");
            copyPeopleFromFile();
            copyLocalsFromFile();
        } catch (IOException e) {
            System.out.printf("Error ->IOEx->CopyObjectFromFile\n");
        } catch (ClassNotFoundException e) {
            System.out.printf("Class not Found");
        }
    }

    private void copyToObjectFile() {
        try {
            ObjectOutputStream out = new ObjectOutputStream(new FileOutputStream(new File("Object.dat")));
            out.writeObject(PeopleList);
            out.writeObject(LocalsList);
            out.writeObject(Enrolled_Event);

            out.close();
        } catch (FileNotFoundException not_Found) {
            System.out.printf("Error -> People.dat not found\n");
        } catch (IOException e) {
            System.out.printf("Error -> IOex->CopyPeopleToFile\n");
        }
    }

    private void copyPeopleToFile() {
        try {
            BufferedWriter out = new BufferedWriter(new FileWriter(new File("People.txt")));
            System.out.printf("-->PeopleFile Opened Successfully!\n");


            int i, j;
            for (i = 0; i < PeopleList.size(); i++) {
                People p = PeopleList.get(i);
                String name = p.getName();
                String user = p.getUsername();
                String pass = p.getPassword();
                String profile = p.getProfile();
                String l = name + " " + user + " " + pass + " " + profile + " ";


                if (p.getCode_type() == 1) {
                    Students s = (Students) p;
                    String prog = s.getProgram();
                    l += "1" + " " + prog + " ";//Concatenates strings
                } else if (p.getCode_type() == 2) {
                    Teachers t = (Teachers) p;
                    String type = t.getType();
                    l += "2" + " " + type + " ";
                } else if (p.getCode_type() == 3) {
                    Officials o = (Officials) p;
                    String worktime = o.getWorktime();
                    l += "3" + " " + worktime + " ";
                }


                out.write(l + "\n");// Writes on File the Following String
                /* name keyword profile [program/type/worktime]
                [program/type/worktime] --> depends on type of people
                */
            }
            out.close(); //closes File
        } catch (FileNotFoundException not_Found) {
            System.out.printf("ERROR\n -->People File Not Found");
        } catch (IOException e) {
            System.out.printf("IOE->ERROR->CopyPeopleToFile\n"); // to know where error occurred
        }
    }

    private void copyPeopleFromFile() {
        try {
            BufferedReader in = new BufferedReader(new FileReader(new File("People.txt")));
            String line;
            while ((line = in.readLine()) != null) {
                String[] parts = line.split(" "); // divides String into several SubStrings
                /*First 3 and 5 are always the same!*/
                String name = parts[0];
                String kw = parts[1];
                String pass = parts[2];
                String profile = parts[3];
                int code = Integer.parseInt(parts[4]);

                if (code == 1) { //Student
                    String program = parts[5];
                    Students s = new Students(name, kw, pass, profile, program);
                    PeopleListadd(s); // Adds person to list

                } else if (code == 2) { //Teacher
                    String type = parts[5];
                    Teachers t = new Teachers(name, kw, pass, profile, type);
                    PeopleListadd(t);

                }
                if (code == 3) { //Official
                    String worktime = parts[5];
                    Officials o = new Officials(name, kw, pass, profile, worktime);
                    PeopleListadd(o);
                }
            }
            in.close();
        } catch (IOException e) {
            System.out.printf("IOE -> ERROR -> copyPeopleFromFile");
        }
    }

    private void copyLocalsToFile() {
        try {
            BufferedWriter out = new BufferedWriter(new FileWriter(new File("People.txt")));
            System.out.printf("-->PeopleFile Opened Successfully!\n");


            int i, j;
            for (i = 0; i < LocalsList.size(); i++) {
                Locals temp = LocalsList.get(i);
                String name = temp.getName();
                double lat = temp.getLatitude();
                double longe = temp.getLongitude();
                int code = temp.getCode_type();
                String line = name + " " + Double.toString(lat) + " " + Double.toString(longe) + " " + Integer.toString(code) + " ";

                if (code == 1) {
                    Exhibitions ex = (Exhibitions) temp;
                    String art = ex.getArtform();
                    line += art + " ";//Concatenates strings
                } else if (code == 2) {
                    Gardens ga = (Gardens) temp;
                    String area = ga.getArea();
                    line += area + " ";
                } else if (code == 3) {
                    SportArea sp = (SportArea) temp;
                    String sport = sp.getSports();
                    line += sport + " ";
                } else if (code == 4) {
                    Bars ba = (Bars) temp;
                    int max = ba.getMaxppl();
                    double min = ba.getMinconsume();
                    double percentage = ba.getPercentage();
                    line += Integer.toString(max) + " " + Double.toString(min) + " " + percentage + " ";
                }
                out.write(line + "\n");
            }
            out.close();
        } catch (FileNotFoundException not_found) {
            System.out.printf("Error -> Locals.txt Not found");
        } catch (IOException e) {
            System.out.printf("Error -> IOEx -> copyLocalsToFile");
        }
    }

    private void copyLocalsFromFile() {

        try {
            BufferedReader in = new BufferedReader(new FileReader(new File("Locals.txt")));
            String line;
            while ((line = in.readLine()) != null) {
                String[] parts = line.split(" "); // divides String into several SubStrings
                /*First 4 are always the same!*/
                String name = parts[0];
                double latitude = Double.parseDouble(parts[1]);
                double longitude = Double.parseDouble(parts[2]);
                int code = Integer.parseInt(parts[3]);

                if (code == 1) { // Exhibitions
                    String art = parts[4];
                    double entrance_fee = Double.parseDouble(parts[5]);

                    Exhibitions temp = new Exhibitions(name, latitude, longitude, art, entrance_fee);
                    LocalListadd(temp);
                }

                if (code == 2) { //Gardens
                    String area = parts[4];

                    Gardens temp = new Gardens(name, latitude, longitude, area);
                    LocalListadd(temp);
                }

                if (code == 3) { // SportsArea
                    String sport = parts[4];

                    SportArea temp = new SportArea(name, latitude, longitude, sport);
                    LocalListadd(temp);
                }

                if (code == 4) { // Exhibitions
                    int maxpeople = Integer.parseInt(parts[4]);
                    double min_consume = Double.parseDouble(parts[5]);
                    double percentage = Double.parseDouble(parts[6]);

                    Bars temp = new Bars(name, latitude, longitude, maxpeople, min_consume, percentage);
                    LocalListadd(temp);
                }
            }

            in.close();
        } catch (FileNotFoundException not_found) {
            System.out.printf("Error -> Locals.txt Not Found!\n");
        } catch (IOException e) {
            System.out.printf("Error -> IOEx -> copyLocalsFromFile\n");
        }
    }


    //Prints Methods
    private void prints2() {
        int i = 0;
        while (i < Enrolled_Event.size()) {
            System.out.printf("\n[%s]\n", Enrolled_Event.get(i).getName());
            i++;
        }
    } // Temporary

    private void prints() {
        int i = 0;
        while (i < PeopleList.size()) {
            System.out.printf("\n[%s]\n", PeopleList.get(i).getName());
            i++;
        }
    } // Temporary

    private void printlocals() {
        int i = 0, j = 1;
        while (i < LocalsList.size()) {
            System.out.printf("\n%d--> [%s*\n", j, LocalsList.get(i).toString());
            i++;
            j++;
        }
    }

    //Change this function
    private void print_locals_votes() {
        ArrayList<Locals> temp = LocalsList;

        if (temp.size() == 0) {
            System.out.println("No votes yet");
            return;
        }

        Locals x = LocalsList.get(0);

        temp.sort(Comparator.comparing(Locals::getAmount_votes));

        System.out.println(temp);
    }

    private void print_locals_choosen(People person) {
        System.out.printf("/Locals Choosen/\n");

        for (int i = 0; i < 5; i++) {
            if (person.getLocals_votes().get(i) == null) System.out.printf("%d --> [Empty]\n", i);
            else
                System.out.printf("%d --> [%s]\n", i, person.getLocals_votes().get(i).getName());
        }


    }

    //List adds Methods
    private void PeopleListadd(People x) {
        PeopleList.add(x);
    }

    private void Enrolled_eventadd(People x) {
        Enrolled_Event.add(x);
    }

    private void LocalListadd(Locals x) {
        LocalsList.add(x);
    }

}