InMemoryUserDataAccessObject.java

package data_access;

import use_case.change_password.ChangePasswordUserDataAccessInterface;
import use_case.create_group.CreateGroupUserDataAccessInterface;
import use_case.create_schedule.CreateScheduleUserDataAccessInterface;
import use_case.creategrouptask.CreateGroupTaskUserDataAccessInterface;
import use_case.editgrouptasks.EditGroupTasksUserDataAccessInterface;
import use_case.join_group.JoinGroupUserDataAccessInterface;
import use_case.login.LoginUserDataAccessInterface;
import use_case.logout.LogoutUserDataAccessInterface;
import use_case.signup.SignupUserDataAccessInterface;

import java.util.HashMap;
import java.util.Map;

import entity.user.User;
import use_case.viewtasks.ViewTasksUserDataAccessInterface;

/**
 * In-memory implementation of the DAO for storing user data. This
 * implementation does
 * NOT persist data between runs of the program.
 */
public class InMemoryUserDataAccessObject implements SignupUserDataAccessInterface,
        LoginUserDataAccessInterface,
        ChangePasswordUserDataAccessInterface,
        CreateGroupUserDataAccessInterface,
        JoinGroupUserDataAccessInterface,
        LogoutUserDataAccessInterface,
        ViewTasksUserDataAccessInterface,
        CreateGroupTaskUserDataAccessInterface,
        EditGroupTasksUserDataAccessInterface,
        CreateScheduleUserDataAccessInterface {

    private final Map<String, User> users = new HashMap<>();

    private String currentUsername;

    @Override
    public boolean existsByName(String identifier) {
        return users.containsKey(identifier);
    }

    @Override
    public void save(User user) {
        users.put(user.getName(), user);
    }

    @Override
    public User get(String username) {
        return users.get(username);
    }

    @Override
    public void setCurrentUsername(String name) {
        currentUsername = name;
    }

    @Override
    public String getCurrentUsername() {
        return currentUsername;
    }

    @Override
    public void changePassword(User user) {
        // Replace the old entry with the new password
        users.put(user.getName(), user);
    }

    @Override
    public void saveSchedule(User user) {
        // Update the user with the new schedule
        users.put(user.getName(), user);
    }

}