<?php

namespace backend\forms;

use components\Curl;
use components\Exception;
use Yii;

/**
 * Class QueueForm
 * @package backend\forms
 */
class SubscribeForm extends BaseForm
{
	/**
	 * @var string 主题名字
	 */
	public $topicName;

    /**
     * @var string 订阅名字
     */
    public $subscriptionName;

    /**
     * @var string 订阅的协议
     */
    public $protocol;

    /**
     * @var string 接收通知的 endpoint
     */
    public $endpoint;

    /**
     * @var string 订阅接收消息的过滤策略
     */
    public $bindingKey;

	public function rules()
	{
		return [
            //create_subscribe  create_subscribe
			[['topicName','subscriptionName', 'endpoint'], 'required', 'message' => 1500, 'on' => ['create_subscribe', 'delete_subscribe']],
			['topicName', 'string', 'message' => 1501, 'on' => ['create_subscribe', 'delete_subscribe']],
			['topicName', 'filter', 'filter' => 'trim', 'on' => ['create_subscribe', 'delete_subscribe']],
		];
	}

	/**
	 * [创建队列]
	 * @author: libingke
	 * @return array
	 * @throws Exception
	 */
	public function Subscribe()
	{
		try {
			$connect = $this->getConnect();
			$channel = $connect->channel();
			list($subscriptionName,,) =  $channel->queue_bind($this->endpoint, $this->topicName, is_null($this->bindingKey)?'*':$this->bindingKey);

        } catch (\Exception $e) {
			throw new Exception(1001, $e->getMessage());
		}
		return $data = [
		    'subscriptionName' => empty($subscriptionName)?$this->subscriptionName:$subscriptionName,
            'bindingKey' => $this->topicName,
            'endpoint' => $this->endpoint,
            ];
	}

	/**
	 * [删除队列]
	 * @author: libingke
	 * @return array
	 * @throws Exception
	 */
	public function Unsubscribe()
	{
		try {
			$connect = $this->getConnect();
			$channel = $connect->channel();
			$channel->queue_unbind($this->endpoint, $this->topicName, false );

            list($subscriptionName,,) =  $channel->queue_unbind($this->endpoint, $this->topicName,  is_null($this->bindingKey)?'*':$this->bindingKey);
			return [
				'name' => $this->endpoint,
				'result' => '删除成功'
			];

		} catch (\Exception $e) {
			throw new Exception(1001, $e->getMessage());
		}
	}

	/**
	 * [获取消息列表]
	 * @author: libingke
	 */
	public function getSubscribeList()
	{
		$authStr = Yii::$app->Amqp->user . ':' . Yii::$app->Amqp->pass;
		$url = Yii::$app->Amqp->host . ':' . Yii::$app->Amqp->api_port . "/api/bindings";

		$curl = new Curl();
		$curl->setOption(CURLOPT_USERPWD, $authStr);
		$result = json_decode($curl->get($url), true);
		if ($curl->responseCode != 200)
			throw new Exception(1002);

		if ($curl->errorText)
			throw new Exception(1002, $curl->errorText);

		if (isset($result['error']) && is_string($result['error']))
			throw new Exception(1002, $result['error']);

		$rows = [];
		foreach ($result as $k => $v) {
		    //destination  exchange
			$name = $v['destination'];
			$rows[$name]['destination'] 			= $name;
			$rows[$name]['source']	= $v['source'];
            $rows[$name]['topicName']	= $v['source'];
			$rows[$name]['destination_type']	= $v['destination_type'];
			$rows[$name]['routing_key']	= $v['routing_key'];
			$rows[$name]['arguments']	= $v['arguments'];
			$rows[$name]['properties_key']	= $v['properties_key'];
		}
		unset($result);

		return ['count' => count($rows), 'rows' => $rows];
	}
}