package com.jw.lab3.data;

import com.jw.lab3.data.model.LoggedInUser;

import java.io.IOException;
import java.lang.reflect.Array;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;

/**
 * Class that handles authentication w/ login credentials and retrieves user information.
 */
public class LoginDataSource {

    private List<String> DUMMY_CREDENTIALS = new ArrayList<>();

    public LoginDataSource() {
        DUMMY_CREDENTIALS.add("admin");
        DUMMY_CREDENTIALS.add("admin");
    }

    public Result<LoggedInUser> login(String username, String password) {

        try {
            // TODO: handle loggedInUser authentication

            if (DUMMY_CREDENTIALS.contains(username) && DUMMY_CREDENTIALS.contains(password)) {
                LoggedInUser fakeUser =
                        new LoggedInUser(
                                java.util.UUID.randomUUID().toString(),
                                username);
                return new Result.Success<>(fakeUser);
            } else {
                DUMMY_CREDENTIALS.addAll(Arrays.asList(username, password));
                return new Result.Error(new IOException("Could not log"));
            }
        } catch (Exception e) {
            return new Result.Error(new IOException("Error logging in", e));
        }
    }

    public void logout() {
        // TODO: revoke authentication
    }
}