package com.galaxis.rcs.ptr;

import com.yvan.logisticsEnv.EnvPayload;
import lombok.SneakyThrows;
import lombok.extern.slf4j.Slf4j;
import org.clever.core.BannerUtils;
import org.eclipse.paho.mqttv5.client.*;
import org.eclipse.paho.mqttv5.common.MqttException;
import org.eclipse.paho.mqttv5.common.MqttMessage;
import org.eclipse.paho.mqttv5.common.packet.MqttProperties;

import java.net.InetAddress;
import java.nio.charset.StandardCharsets;
import java.util.concurrent.CountDownLatch;

@Slf4j
public class PtrMqttClient implements MqttCallback {
    public final AmrMessageHandler amrMessageHandler;
    public final EnvPayload.MqttConfig mqttConfig;
    private final MqttClient client;
    private CountDownLatch connectLatch = new CountDownLatch(1);

    @SneakyThrows
    public PtrMqttClient(AmrMessageHandler handler, EnvPayload.MqttConfig mqttConfig, String clientId) {
        this.amrMessageHandler = handler;
        this.mqttConfig = mqttConfig;

        String brokerUrl = mqttConfig.getBrokerUrl(); // "tcp://10.10.203.239:1885"
        String username = mqttConfig.getUsername(); // admin
        String password = mqttConfig.getPassword(); // admin

        client = new MqttClient(brokerUrl, clientId); // String clientId = "LUOYIFAN-PC"
        MqttConnectionOptions options = new MqttConnectionOptions();
        options.setServerURIs(new String[]{brokerUrl});
        options.setAutomaticReconnect(true);
        options.setUserName(username);
        options.setPassword(password.getBytes());
        options.setConnectionTimeout(10);
        options.setKeepAliveInterval(20);

        client.setCallback(this);

        BannerUtils.printConfig(log, "MQTT 开启监听", new String[]{
            "brokerUrl: " + brokerUrl,
            "userName: " + username,
            "clientId: " + clientId,
            "topic: /agv_robot/status"});

        client.connect(options);
        connectLatch.await();
        client.subscribe("/agv_robot/status", 0);
    }

    @SneakyThrows
    public void publish(String topic, String payload) {
        // 这个一发送就阻塞
        this.client.publish(topic, payload.getBytes(StandardCharsets.UTF_8), 0, false);
    }

    @SneakyThrows
    public static void main(String[] args) {
        // 这个测试是好的
        String brokerUrl = "tcp://10.10.203.239:1885";
        String clientId = InetAddress.getLocalHost().getHostName(); // LUOYIFAN-PC
        String topic = "/agv_robot/status";
        String content = "Hello from Java";
        String username = "admin";
        String password = "admin";
        int qos = 0;

        MqttClient client = new MqttClient(brokerUrl, clientId);
        MqttConnectionOptions options = new MqttConnectionOptions();
        options.setServerURIs(new String[]{brokerUrl});
        options.setAutomaticReconnect(true);
        options.setUserName(username);
        options.setPassword(password.getBytes());
        options.setConnectionTimeout(10);
        options.setKeepAliveInterval(20);

        System.out.println("Connecting to broker...");
        client.connect(options);
        System.out.println("Connected");

        System.out.println("Publishing message...");
        long start = System.currentTimeMillis();
        client.publish(topic, content.getBytes(), qos, false);  // 这个发送是好的
        System.out.println("Published in " + (System.currentTimeMillis() - start) + " ms");

        client.disconnect();
        System.out.println("Disconnected");
    }

    @Override
    public void disconnected(MqttDisconnectResponse disconnectResponse) {
        log.info("mqtt disconnected");
    }

    @Override
    public void mqttErrorOccurred(MqttException exception) {
        log.error("mqtt error occurred");
    }

    @Override
    public void messageArrived(String topic, MqttMessage message) throws Exception {
        switch (topic) {
            case "/agv_robot/status":
                try {
                    amrMessageHandler.handleAgvRobotStatusMessage(message);

                } catch (Exception e) {
                    log.error("amrMessageHandler.handleAgvRobotStatusMessage 异常", e);
                }
                break;
            default:
                break;
        }
    }

    @Override
    public void deliveryComplete(IMqttToken token) {
    }

    @Override
    public void connectComplete(boolean reconnect, String serverURI) {
        // BannerUtils.printConfig(log, "MQTT 开启监听", new String[]{serverURI + " topic: /agv_robot/status"});
        log.info("MQTT client connected to server: {}", serverURI);
        connectLatch.countDown(); // 放行
    }

    @Override
    public void authPacketArrived(int reasonCode, MqttProperties properties) {
    }

    @SneakyThrows
    public void stop() {
        if (client != null && client.isConnected()) {
            client.disconnect();
            client.close();
            log.info("MQTT client disconnected and closed.");
        } else {
            log.warn("MQTT client is not connected, no action taken.");
        }
    }

}