/* ownCloud Android Library is available under MIT license
 *   Copyright (C) 2015 ownCloud Inc.
 *
 *   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 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;
		}
	}

}