/*
 * Copyright (c) 2015 Ushahidi Inc
 *
 * This program is free software: you can redistribute it and/or modify it under
 *  the terms of the GNU Affero General Public License as published by the Free
 *  Software Foundation, either version 3 of the License, or (at your option)
 *  any later version.
 *
 *  This program is distributed in the hope that it will be useful, but WITHOUT
 *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 *  FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more details.
 *
 *  You should have received a copy of the GNU Affero General Public License
 *  along with this program in the file LICENSE-AGPL. If not, see
 *  https://www.gnu.org/licenses/agpl-3.0.html
 */

package com.ushahidi.platform.mobile.app.presentation.account;

import com.ushahidi.platform.mobile.app.presentation.view.ui.activity.LoginActivity;

import android.accounts.AbstractAccountAuthenticator;
import android.accounts.Account;
import android.accounts.AccountAuthenticatorResponse;
import android.accounts.AccountManager;
import android.accounts.NetworkErrorException;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.text.TextUtils;

/**
 * Concrete class for authenticating users via Android's authentication
 * system
 *
 * @author Ushahidi Team <team@ushahidi.com>
 */
public class UserAccountAuthenticator extends AbstractAccountAuthenticator {

    private final Context mContext;

    private final AccountManager mAccountManager;

    /**
     * Default constructor
     *
     * @param context The call context
     */
    public UserAccountAuthenticator(Context context) {
        super(context);
        mContext = context;
        mAccountManager = AccountManager.get(context);
    }

    @Override
    public Bundle editProperties(AccountAuthenticatorResponse accountAuthenticatorResponse,
            String s) {
        return null;
    }

    @Override
    public Bundle addAccount(AccountAuthenticatorResponse accountAuthenticatorResponse,
            String accountType,
            String authTokenType, String[] requiredFeatures, Bundle options)
            throws NetworkErrorException {

        final Intent intent = new Intent(mContext, LoginActivity.class);
        intent.putExtra(AccountManager.KEY_ACCOUNT_AUTHENTICATOR_RESPONSE,
                accountAuthenticatorResponse);
        final Bundle bundle = new Bundle();
        bundle.putParcelable(AccountManager.KEY_INTENT, intent);

        return bundle;
    }

    @Override
    public Bundle confirmCredentials(AccountAuthenticatorResponse accountAuthenticatorResponse,
            Account account, Bundle bundle) throws NetworkErrorException {
        return null;
    }

    @Override
    public Bundle getAuthToken(AccountAuthenticatorResponse accountAuthenticatorResponse,
            Account account, String authTokenType, Bundle options) throws NetworkErrorException {
        final Bundle result = new Bundle();
        final String password = mAccountManager.getPassword(account);

        if (!TextUtils.isEmpty(password)) {
            // We have a stored password, so use it
            result.putString(AccountManager.KEY_ACCOUNT_NAME, account.name);
            result.putString(AccountManager.KEY_ACCOUNT_TYPE, account.type);
            result.putString(AccountManager.KEY_AUTHTOKEN, password);
        } else {
            final Intent intent = new Intent(mContext, LoginActivity.class);
            intent.putExtra(AccountManager.KEY_ACCOUNT_AUTHENTICATOR_RESPONSE,
                    accountAuthenticatorResponse);
            result.putParcelable(AccountManager.KEY_INTENT, intent);
        }

        return result;
    }

    @Override
    public String getAuthTokenLabel(String authTokenType) {
        return authTokenType;
    }

    @Override
    public Bundle updateCredentials(AccountAuthenticatorResponse accountAuthenticatorResponse,
            Account account, String s, Bundle bundle) throws NetworkErrorException {
        return null;
    }

    @Override
    public Bundle hasFeatures(AccountAuthenticatorResponse accountAuthenticatorResponse,
            Account account, String[] strings) throws NetworkErrorException {
        final Bundle result = new Bundle();
        result.putBoolean(AccountManager.KEY_BOOLEAN_RESULT, false);
        return result;
    }
}