package main.logick.users;

import javax.servlet.http.HttpServletRequest;
import java.util.HashMap;
import java.util.Map;
import java.util.Objects;

public class AccountService {
    private static final Map<String, UserProfile> userProfile = new HashMap<>();
    private static final Map<String, String> userSession = new HashMap<>();

    public AccountService() {
        // null object for don't call NullPointException
        // userProfile.put(null, new UserProfile(null, null, null));
    }

    public boolean signUp (HttpServletRequest request) {
        String username, password, email;

        if((username = request.getParameter("username")) == null) {
            return false;
        } else if ((password = request.getParameter("password")) == null) {
            return false;
        } else if (userExists(username)) {
            return false;
        }

        addNewUser(username, password);
        userSession.put(request.getSession().getId(), username);

        return true;
    }

    public boolean signIn(String username, String password) {

        if(username.isEmpty()) {
            return false;
        } else if (password.isEmpty()) {
            return false;
        } else if (!userExists(username.trim())) {
            return false;
        } else if (Objects.equals(password, userProfile.get(username).getPassword())) {
            return  true;
        }

        return false;
    }

    public boolean userExists(String username) {
        return userProfile.containsKey(username.trim());
    }

    public UserProfile getUserByLogin (String username) {
        if(userExists(username)) {
            return userProfile.get(username.trim());
        }

        return userProfile.get(null);
    }

    public UserProfile getUserBySession (String session) {
        return  getUserByLogin(userSession.get(session));
    }

    public void addNewUser(String username, String password) {
        userProfile.put(username, new UserProfile(username, password));
    }

    public void addNewUser(String username) {
        userProfile.put(username, new UserProfile(username, username));
    }

}