From a4642d17e0e1ea018b128efdcc3db281461458b1 Mon Sep 17 00:00:00 2001
From: Frédéric Guillot <fred@kanboard.net>
Date: Wed, 4 Apr 2018 15:21:13 -0700
Subject: Move custom libs to the source tree

---
 libs/SimpleQueue/Adapter/AmqpQueueAdapter.php | 138 ++++++++++++++++++++++++++
 1 file changed, 138 insertions(+)
 create mode 100644 libs/SimpleQueue/Adapter/AmqpQueueAdapter.php

(limited to 'libs/SimpleQueue/Adapter/AmqpQueueAdapter.php')

diff --git a/libs/SimpleQueue/Adapter/AmqpQueueAdapter.php b/libs/SimpleQueue/Adapter/AmqpQueueAdapter.php
new file mode 100644
index 00000000..379dd9b8
--- /dev/null
+++ b/libs/SimpleQueue/Adapter/AmqpQueueAdapter.php
@@ -0,0 +1,138 @@
+<?php
+
+namespace SimpleQueue\Adapter;
+
+use DateTime;
+use PhpAmqpLib\Channel\AMQPChannel;
+use PhpAmqpLib\Message\AMQPMessage;
+use PhpAmqpLib\Wire\AMQPTable;
+use SimpleQueue\Job;
+use SimpleQueue\QueueAdapterInterface;
+
+/**
+ * Class AmqpQueueAdapter
+ *
+ * @package SimpleQueue\Adapter
+ */
+class AmqpQueueAdapter implements QueueAdapterInterface
+{
+    /**
+     * @var AMQPChannel
+     */
+    protected $channel;
+
+    /**
+     * @var string
+     */
+    protected $exchange = '';
+
+    /**
+     * @var string
+     */
+    protected $queue = '';
+
+    /**
+     * AmqpQueueAdapter constructor.
+     *
+     * @param AMQPChannel $channel
+     * @param string      $queue
+     * @param string      $exchange
+     */
+    public function __construct(AMQPChannel $channel, $queue, $exchange)
+    {
+        $this->channel = $channel;
+        $this->exchange = $exchange;
+        $this->queue = $queue;
+    }
+
+    /**
+     * Send a job
+     *
+     * @access public
+     * @param  Job $job
+     * @return $this
+     */
+    public function push(Job $job)
+    {
+        $message = new AMQPMessage($job->serialize(), array('content_type' => 'text/plain'));
+        $this->channel->basic_publish($message, $this->exchange);
+        return $this;
+    }
+
+    /**
+     * Schedule a job in the future
+     *
+     * @access public
+     * @param  Job      $job
+     * @param  DateTime $dateTime
+     * @return $this
+     */
+    public function schedule(Job $job, DateTime $dateTime)
+    {
+        $now = new DateTime();
+        $when = clone($dateTime);
+        $delay = $when->getTimestamp() - $now->getTimestamp();
+
+        $message = new AMQPMessage($job->serialize(), array('delivery_mode' => 2));
+        $message->set('application_headers', new AMQPTable(array('x-delay' => $delay)));
+
+        $this->channel->basic_publish($message, $this->exchange);
+        return $this;
+    }
+
+    /**
+     * Wait and get job from a queue
+     *
+     * @access public
+     * @return Job|null
+     */
+    public function pull()
+    {
+        $message = null;
+
+        $this->channel->basic_consume($this->queue, 'test', false, false, false, false, function ($msg) use (&$message) {
+            $message = $msg;
+            $message->delivery_info['channel']->basic_cancel($message->delivery_info['consumer_tag']);
+        });
+
+        while (count($this->channel->callbacks)) {
+            $this->channel->wait();
+        }
+
+        if ($message === null) {
+            return null;
+        }
+
+        $job = new Job();
+        $job->setId($message->get('delivery_tag'));
+        $job->unserialize($message->getBody());
+
+        return $job;
+    }
+
+    /**
+     * Acknowledge a job
+     *
+     * @access public
+     * @param  Job $job
+     * @return $this
+     */
+    public function completed(Job $job)
+    {
+        $this->channel->basic_ack($job->getId());
+        return $this;
+    }
+
+    /**
+     * Mark a job as failed
+     *
+     * @access public
+     * @param  Job $job
+     * @return $this
+     */
+    public function failed(Job $job)
+    {
+        $this->channel->basic_nack($job->getId());
+        return $this;
+    }
+}
-- 
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