/* ownCloud Android Library is available under MIT license
 *   Copyright (C) 2016 ownCloud GmbH.
 *
 *   Permission is hereby granted, free of charge, to any person obtaining a copy
 *   of this software and associated documentation files (the "Software"), to deal
 *   in the Software without restriction, including without limitation the rights
 *   to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 *   copies of the Software, and to permit persons to whom the Software is
 *   furnished to do so, subject to the following conditions:
 *
 *   The above copyright notice and this permission notice shall be included in
 *   all copies or substantial portions of the Software.
 *
 *   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 *   EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 *   MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 *   NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
 *   BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
 *   ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 *   CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 *   THE SOFTWARE.
 *
 */

package com.owncloud.android.lib.common;

public class OwnCloudCredentialsFactory {

    public static final String CREDENTIAL_CHARSET = "UTF-8";

    private static OwnCloudAnonymousCredentials sAnonymousCredentials;

    public static OwnCloudCredentials newBasicCredentials(String username, String password) {
        return new OwnCloudBasicCredentials(username, password);
    }

    public static OwnCloudCredentials newBasicCredentials(
        String username, String password, boolean preemptiveMode
    ) {
        return new OwnCloudBasicCredentials(username, password, preemptiveMode);
    }

    public static OwnCloudCredentials newBearerCredentials(String authToken) {
        return new OwnCloudBearerCredentials(authToken);
    }

    public static OwnCloudCredentials newSamlSsoCredentials(String username, String sessionCookie) {
        return new OwnCloudSamlSsoCredentials(username, sessionCookie);
    }

    public static final OwnCloudCredentials getAnonymousCredentials() {
        if (sAnonymousCredentials == null) {
            sAnonymousCredentials = new OwnCloudAnonymousCredentials();
        }
        return sAnonymousCredentials;
    }

    public static final class OwnCloudAnonymousCredentials implements OwnCloudCredentials {

        protected OwnCloudAnonymousCredentials() {
        }

        @Override
        public void applyTo(OwnCloudClient client) {
            client.getState().clearCredentials();
            client.getState().clearCookies();
        }

        @Override
        public String getAuthToken() {
            return "";
        }

        @Override
        public boolean authTokenExpires() {
            return false;
        }

        @Override
        public String getUsername() {
            // no user name
            return null;
        }
    }

}
