/*
 * (C) Copyright 2017-2020 OpenVidu (https://openvidu.io)
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 */

package io.openvidu.server.core;

import org.apache.commons.lang3.RandomStringUtils;
import org.springframework.beans.factory.annotation.Autowired;

import io.openvidu.java.client.ConnectionProperties;
import io.openvidu.java.client.ConnectionType;
import io.openvidu.java.client.KurentoOptions;
import io.openvidu.java.client.OpenViduRole;
import io.openvidu.server.OpenViduServer;
import io.openvidu.server.config.OpenviduBuildInfo;
import io.openvidu.server.config.OpenviduConfig;
import io.openvidu.server.coturn.CoturnCredentialsService;
import io.openvidu.server.coturn.TurnCredentials;

public class TokenGenerator {

	@Autowired
	private CoturnCredentialsService coturnCredentialsService;

	@Autowired
	protected OpenviduConfig openviduConfig;

	@Autowired
	protected OpenviduBuildInfo openviduBuildConfig;

	public Token generateToken(String sessionId, String serverMetadata, boolean record, OpenViduRole role,
			KurentoOptions kurentoOptions) throws Exception {
		String token = OpenViduServer.wsUrl;
		token += "?sessionId=" + sessionId;
		token += "&token=" + IdentifierPrefixes.TOKEN_ID + RandomStringUtils.randomAlphabetic(1).toUpperCase()
				+ RandomStringUtils.randomAlphanumeric(15);

		// REMOVE AFTER RELEASE 2.16.0
		token = compatibilityWithOpenViduBrowser2150(token, role);
		// REMOVE AFTER RELEASE 2.16.0

		TurnCredentials turnCredentials = null;
		if (this.openviduConfig.isTurnadminAvailable()) {
			turnCredentials = coturnCredentialsService.createUser();
		}
		ConnectionProperties connectionProperties = new ConnectionProperties.Builder().type(ConnectionType.WEBRTC)
				.data(serverMetadata).record(record).role(role).kurentoOptions(kurentoOptions).build();
		return new Token(token, sessionId, connectionProperties, turnCredentials);
	}

	// REMOVE AFTER RELEASE 2.16.0
	private String compatibilityWithOpenViduBrowser2150(String token, OpenViduRole role) {
		token += "&role=" + role.name();
		token += "&version=" + openviduBuildConfig.getOpenViduServerVersion();
		TurnCredentials turnCredentials = null;
		if (this.openviduConfig.isTurnadminAvailable()) {
			try {
				turnCredentials = coturnCredentialsService.createUser();
			} catch (Exception e) {
				e.printStackTrace();
			}
			if (turnCredentials != null) {
				token += "&coturnIp=" + openviduConfig.getCoturnIp();
				token += "&turnUsername=" + turnCredentials.getUsername();
				token += "&turnCredential=" + turnCredentials.getCredential();
			}
		}
		return token;
	}
}

@@ -1825,137 +1825,8 @@
 5);%0A
-%0A%09%09// REMOVE AFTER RELEASE 2.16.0%0A%09%09token = compatibilityWithOpenViduBrowser2150(token, role);%0A%09%09// REMOVE AFTER RELEASE 2.16.0%0A%0A
 %09%09Tu
@@ -1979,16 +1979,162 @@
 ();%0A%09%09%7D%0A
+%0A%09%09// REMOVE AFTER RELEASE 2.16.0%0A%09%09token = compatibilityWithOpenViduBrowser2150(token, role, turnCredentials);%0A%09%09// REMOVE AFTER RELEASE 2.16.0%0A%0A
 %09%09Connec
@@ -2523,16 +2523,52 @@
 ole role
+,%0A%09%09%09TurnCredentials turnCredentials
 ) %7B%0A%09%09to
@@ -2675,230 +2675,8 @@
 ();%0A
-%09%09TurnCredentials turnCredentials = null;%0A%09%09if (this.openviduConfig.isTurnadminAvailable()) %7B%0A%09%09%09try %7B%0A%09%09%09%09turnCredentials = coturnCredentialsService.createUser();%0A%09%09%09%7D catch (Exception e) %7B%0A%09%09%09%09e.printStackTrace();%0A%09%09%09%7D%0A%09
 %09%09if
@@ -2703,25 +2703,24 @@
  null) %7B%0A%09%09%09
-%09
 token += %22&c
@@ -2757,25 +2757,24 @@
 CoturnIp();%0A
-%09
 %09%09%09token += 
@@ -2826,17 +2826,16 @@
 e();%0A%09%09%09
-%09
 token +=
@@ -2893,13 +2893,8 @@
 ();%0A
-%09%09%09%7D%0A
 %09%09%7D%0A

fix openvidu-browser 2.15.0 compatibility