Admin.java

import java.util.ArrayList;
import java.util.HashMap;

public class Admin {
    
    // vai obrigar o programa ter só um admin porque nao faria sentido ter dois ou mais (singleton)
    
    private static Admin instance;

    private Admin(){

    }

    public static Admin getInstance() {
        if(instance == null) {
           instance = new Admin();
        }
  
         // returns the singleton object
         return instance;
     }

    private String[][] doctorsAccounts = { { "mariana.mendes@medicals.com", "mari@458" },
            { "pietra.freitas@medicals.com", "91frei@!" }, { "wemilly.souza@medicals.com", "ue54!mi" },
            { "rebeca.queiroz@medicals.com", "b48@qu" }, { "hicaro.silva@medicals.com", "lov#47@" },
            { "pedro.carvalho@medicals.com", "p3p3u@2013" } };
            
    private HashMap<String, Doctor> loginDoctor = new HashMap<>();

    private ArrayList<ArrayList<String>> patientsAccounts = new ArrayList<>();
    private HashMap<String, Patients> loginPatients = new HashMap<>();

    public Doctor authDoctor(Credentials credentials) {
        for (String[] doctor : doctorsAccounts) {
            if (credentials.email.equals(doctor[0]) && credentials.password.equals(doctor[1])) {
                return loginDoctor.get(credentials.email);
            }
        }
        return null;
    }

    public Patients authPatient(Credentials credentials) {
        for (ArrayList<String> patient : patientsAccounts) {
            if (credentials.email.equals(patient.get(0)) && credentials.password.equals(patient.get(1))) {
                return loginPatients.get(credentials.email);
            }
        }
        return null;
    }

    public void addPatients(Patients patient) {
        ArrayList<String> patients = new ArrayList<>();
        patients.add(patient.getEmail());
        patients.add(patient.getPassword());

        patientsAccounts.add(patients);

        loginPatients.put(patient.getEmail(), patient);

    }

    // nome, email, esp, lista vazia
    void AddDoctors() {
        loginDoctor.put("mariana.mendes@medicals.com",
                new Doctor("Mariana Mendes", "mariana.mendes@medicals.com", "Dentista"));
        loginDoctor.put("pietra.freitas@medicals.com",
                new Doctor("Pietra Freitas", "pietra.freitas@medicals.com", "Ginecologista"));
        loginDoctor.put("wemilly.souza@medicals.com",
                new Doctor("Wemilly Souza", "wemilly.souza@medicals.com", "Dermatologista"));
        loginDoctor.put("rebeca.queiroz@medicals.com",
                new Doctor("Rebeca Queiroz", "rebeca.queiroz@medicals.com", "Nutricionista"));
        loginDoctor.put("hicaro.silva@medicals.com", new Doctor("Hicaro Silva", "hicaro.silva@med", "Proctologista"));
        loginDoctor.put("pedro.carvalho@medicals.com",
                new Doctor("Pedro Carvalho", "pedro.carvalho@medicals.com", "Clínico Geral"));

    }

    void AddDummyPatients() {

        ArrayList<String> patients1 = new ArrayList<>();
        ArrayList<String> patients2 = new ArrayList<>();

        loginPatients.put("johab.manoel@patients.com",
                new Patients("Johab Manoel", "johab.manoel@patients.com", "07/07/1887", "j0h4b"));
        loginPatients.put("selena.gomez@patients.com",
                new Patients("Selena Gomez", "selena.gomez@patients.com", "22/07/1992", "amoofaustao"));

        // primeiro adiciona na lita
        patients1.add("johab.manoel@patients.com");
        patients1.add("j0h4b");

        patients2.add("selena.gomez@patients.com");
        patients2.add("amoofaustao");

        // depois adiciona na tabela hash
        patientsAccounts.add(patients1);
        patientsAccounts.add(patients2);

    }

    public HashMap<String, Doctor> getLoginDoctor() {
        return loginDoctor;
    }

    public HashMap<String, Patients> getLoginPatients() {
        return loginPatients;
    }

}