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/*
 * Copyright 2017-2024 noear.org and authors
 *
 * 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
 *
 *      https://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 org.noear.solon.boot.socketd;

import org.noear.socketd.SocketD;
import org.noear.socketd.transport.server.Server;
import org.noear.socketd.transport.server.ServerConfigHandler;
import org.noear.solon.Solon;
import org.noear.solon.Utils;
import org.noear.solon.boot.ServerConstants;
import org.noear.solon.boot.ServerProps;
import org.noear.solon.boot.prop.impl.SocketServerProps;
import org.noear.solon.boot.ssl.SslConfig;
import org.noear.solon.core.*;
import org.noear.solon.core.event.EventBus;
import org.noear.solon.core.util.LogUtil;
import org.noear.solon.core.util.RunUtil;
import org.noear.solon.net.socketd.SocketdRouter;

import javax.net.ssl.SSLContext;
import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.ExecutorService;

/**
 * @author noear
 * @since 2.6
 */
public class XPluginImpl implements Plugin {
    private List serverList = new ArrayList<>();
    private SocketdRouter socketdRouter;
    private ServerConfigHandler serverConfigHandler;

    @Override
    public void start(AppContext context) throws Throwable {
        if (Solon.app().enableSocketD() == false) {
            return;
        }

        context.lifecycle(ServerConstants.SIGNAL_LIFECYCLE_INDEX, () -> {
            start0(context);
        });
    }

    private void start0(AppContext context) throws Throwable {
        socketdRouter = SocketdRouter.getInstance();
        serverConfigHandler = context.getBean(ServerConfigHandler.class);

        //初始化属性
        ServerProps.init();


        //ssl 配置支持
        final SslConfig sslConfig = new SslConfig(ServerConstants.SIGNAL_SOCKET);
        final SSLContext sslContext;
        if(sslConfig.isSslEnable()){
             sslContext = sslConfig.getSslContext();
        }else{
            sslContext = null;
        }

        SocketServerProps serverProps = new SocketServerProps(20000);
        ExecutorService exchangeExecutor = serverProps.getBioExecutor("Socketd-channelExecutor-");

        Server serverTmp = SocketD.createServerOrNull("sd:tcp");
        if (serverTmp != null) {
            serverTmp.config(c -> c.exchangeExecutor(exchangeExecutor).sslContext(sslContext));
            //总线扩展
            EventBus.publish(serverTmp);
            startServer1(serverTmp, serverProps, 0);
        }

        serverTmp = SocketD.createServerOrNull("sd:udp");
        if (serverTmp != null) {
            serverTmp.config(c -> c.exchangeExecutor(exchangeExecutor).sslContext(sslContext));
            //总线扩展
            EventBus.publish(serverTmp);
            startServer1(serverTmp, serverProps, 1);
        }

        serverTmp = SocketD.createServerOrNull("sd:ws");
        if (serverTmp != null) {
            serverTmp.config(c -> c.exchangeExecutor(exchangeExecutor).sslContext(sslContext));
            //总线扩展
            EventBus.publish(serverTmp);
            startServer1(serverTmp, serverProps, 2);
        }

        if (serverList.size() == 0) {
            exchangeExecutor.shutdown();
            LogUtil.global().warn("Missing socketd server provider!");
        }
    }

    private void startServer1(Server server, SocketServerProps serverProps, int portAdd) throws Exception {
        long time_start = System.currentTimeMillis();

        int portReal = serverProps.getPort() + portAdd;

        serverList.add(server);

        server.config(c -> c.port(portReal).host(serverProps.getHost()));
        server.listen(socketdRouter.getListener());

        //用户配置扩展
        if (serverConfigHandler != null) {
            server.config(serverConfigHandler);
        }

        EventBus.publish(server);

        server.start();

        if(Utils.isNotEmpty(serverProps.getName())) {
            final String _wrapHost = serverProps.getWrapHost();
            final int _wrapPort = serverProps.getWrapPort() + portAdd;
            Signal _signal = new SignalSim(serverProps.getName(), _wrapHost, _wrapPort, "socketd", SignalType.SOCKET);

            Solon.app().signalAdd(_signal);
        }

        long time_end = System.currentTimeMillis();

        String serverUrl = server.getConfig().getSchema() + "://localhost:" + portReal;
        LogUtil.global().info("Connector:main: socket.d: Started ServerConnector@{" + serverUrl + "}");
        LogUtil.global().info("Server:main: socket.d: Started (" + server.getTitle() + ") @" + (time_end - time_start) + "ms");
    }

    @Override
    public void stop() throws Throwable {
        for (Server server : serverList) {
            RunUtil.runAndTry(server::stop);
        }
    }
}