Refactoring classes into src/ folder, so they will be auto-loaded by composer

system/src/Visitors.php

@@ -0,0 +1,126 @@
+<?php
+/**
+ * Visitors class
+ *
+ * @package   MyAAC
+ * @author    Slawkens <slawkens@gmail.com>
+ * @copyright 2019 MyAAC
+ * @link      https://my-aac.org
+ */
+
+namespace MyAAC;
+
+use MyAAC\Cache\Cache;
+use MyAAC\Models\Visitor;
+
+class Visitors
+{
+	private $sessionTime; // time session will live
+	private $data; // cached data
+	private $cacheEnabled;
+	private $cache;
+
+	public function __construct($sessionTime = 10)
+	{
+		$this->cache = Cache::getInstance();
+
+		$this->cacheEnabled = $this->cache->enabled();
+		if($this->cacheEnabled)
+		{
+			$tmp = '';
+			if($this->cache->fetch('visitors', $tmp))
+				$this->data = unserialize($tmp);
+			else
+				$this->data = array();
+		}
+
+		$this->sessionTime = $sessionTime;
+		$this->cleanVisitors();
+
+		$ip = $_SERVER['REMOTE_ADDR'];
+		$userAgentShortened = substr($_SERVER['HTTP_USER_AGENT'] ?? 'unknown', 0, 255);
+
+		if($this->visitorExists($ip))
+			$this->updateVisitor($ip, $_SERVER['REQUEST_URI'], $userAgentShortened);
+		else
+			$this->addVisitor($ip, $_SERVER['REQUEST_URI'], $userAgentShortened);
+	}
+
+	public function __destruct()
+	{
+		if($this->cacheEnabled)
+			$this->cache->set('visitors', serialize($this->data), 120);
+	}
+
+	public function visitorExists($ip)
+	{
+		if($this->cacheEnabled) {
+			return isset($this->data[$ip]);
+		}
+
+		return Visitor::where('ip', $ip)->exists();
+	}
+
+	private function cleanVisitors()
+	{
+		if($this->cacheEnabled)
+		{
+			$timeNow = time();
+			foreach($this->data as $ip => $details)
+			{
+				if($timeNow - (int)$details['lastvisit'] > $this->sessionTime * 60)
+					unset($this->data[$ip]);
+			}
+
+			return;
+		}
+
+		Visitor::where('lastvisit', '<', (time() - $this->sessionTime * 60))->delete();
+	}
+
+	private function updateVisitor($ip, $page, $userAgent)
+	{
+		if($this->cacheEnabled) {
+			$this->data[$ip] = array('page' => $page, 'lastvisit' => time(), 'user_agent' => $userAgent);
+			return;
+		}
+
+		Visitor::where('ip', $ip)->update(['lastvisit' => time(), 'page' => $page, 'user_agent' => $userAgent]);
+	}
+
+	private function addVisitor($ip, $page, $userAgent)
+	{
+		if($this->cacheEnabled) {
+			$this->data[$ip] = array('page' => $page, 'lastvisit' => time(), 'user_agent' => $userAgent);
+			return;
+		}
+
+		Visitor::create(['ip' => $ip, 'lastvisit' => time(), 'page' => $page, 'user_agent' => $userAgent]);
+	}
+
+	public function getVisitors()
+	{
+		if($this->cacheEnabled) {
+			foreach($this->data as $ip => &$details)
+				$details['ip'] = $ip;
+
+			return $this->data;
+		}
+
+		return Visitor::orderByDesc('lastvisit')->get()->toArray();
+	}
+
+	public function getAmountVisitors()
+	{
+		if($this->cacheEnabled) {
+			return count($this->data);
+		}
+
+		return Visitor::count();
+	}
+
+	public function show() {
+		echo $this->getAmountVisitors();
+	}
+}
+?>