<?php
declare(strict_types=1);

namespace App\Master\Framework\Library\Mqtt;

use Hyperf\Config\Annotation\Value;
use Simps\MQTT\Client;
use Simps\MQTT\Config\ClientConfig;

class MqttClient
{
    #[Value("mqtt.client")]
    protected $config;
    protected Client $client;

    /**
     * @param bool $clean 清理会话，默认为 true
     * @param array $will 遗嘱消息，当客户端断线后 Broker 会自动发送遗嘱消息给其它客户端
     */
    public function connect(bool $clean = true, array $will = [])
    {
        $config = $this->config;
        $configObj = new ClientConfig($config['pool']);
        $this->client = new Client($config['host'], $config['port'], $configObj);
        $this->client->connect($clean,$will);
    }

    /**
     * 向某个主题发布一条消息
     *
     * @param string $topic 主题
     * @param mixed $data 内容
     * @param int $qos QoS 等级，默认 0
     * @param int $dup 重发标志，默认 0
     * @param int $retain retain 标记，默认 0
     * @param array $properties 属性，MQTT5 中需要，可选
     * @return array|bool
     */
    public function publish(string $topic, mixed $data, int $qos = 0, int $dup = 0, int $retain = 0, array $properties = [])
    {
        $message = is_array($data) ? json_encode($data) : $data;
        return $this->client->publish($topic, $message, $qos, $dup, $retain, $properties);
    }

    /**
     * 订阅一个主题或者多个主题
     *
     * @param array $topic $topics 的 key 是主题，值为 QoS 的数组，例如
     * @param array $properties 属性，MQTT5 中需要，可选
     * // MQTT 3.x
     *   $topics = [
     *       // 主题 => Qos
     *       'topic1' => 0,
     *       'topic2' => 1,
     *   ];
     *
     *   // MQTT 5.0
     *   $topics = [
     *       // 主题 => 选项
     *       'topic1' => [
     *           'qos' => 1,
     *           'no_local' => true,
     *           'retain_as_published' => true,
     *           'retain_handling' => 2,
     *       ],
     *       'topic2' => [
     *           'qos' => 2,
     *           'no_local' => false,
     *           'retain_as_published' => true,
     *           'retain_handling' => 1,
     *       ],
     *   ];
     * @return array|bool
     */
    public function subscribe(array $topic, array $properties = [])
    {
        return $this->client->subscribe($topic, $properties);
    }

    /**
     * 接收消息
     *
     * @return array|true
     */
    public function recv()
    {
        return $this->client->recv();
    }

    /**
     * 发送消息
     *
     * @param array $data
     * @param $response
     * @return array|true
     */
    public function send(array $data, $response = false)
    {
        return $this->client->send($data,$response);
    }

    /**
     * 发送心跳包
     *
     * @return array|bool
     */
    public function ping()
    {
        return $this->client->ping();
    }

    /**
     * 心跳间隔
     * @return int
     */
    public function getKeepAlive()
    {
        return $this->client->getConfig()->getKeepAlive();
    }
}