20231010#3

src/Cache/Cache.php

@@ -0,0 +1,111 @@
+<?php
+/**
+ * Created by PhpStorm.
+ * User: Zuev Yuri
+ */
+
+
+namespace Rmphp\Storage\Cache;
+
+use Exception;
+
+class Cache implements CacheInterface {
+
+	/**
+	 * @param string $path
+	 * @param int $defaultTime
+	 * @param int $subLength
+	 * @throws Exception
+	 */
+	public function __construct(
+		private string $path,
+		private readonly int $defaultTime = 120,
+		private readonly int $subLength = 2
+	){
+		$this->path = rtrim($path, "/");
+		if(!is_dir($this->path) && !mkdir($this->path, 0777, true)) throw new Exception("Error create path");
+	}
+
+	/** @inheritDoc */
+	public function save(string $name, $value, int $expires = 0) : bool {
+		if(empty($expires)) $expires = time() + $this->defaultTime;
+		if(!$this->fileSave($name, $expires."::".$name."::".serialize($value))) return false;
+		return true;
+	}
+
+	/** @inheritDoc */
+	public function getItem(string $key) {
+		if($this->hasItem($key)){
+			$data = explode("::", $this->fileRead($key), 3);
+			return unserialize($data[2]);
+		}
+		return null;
+	}
+
+	/** @inheritDoc */
+	public function hasItem(string $key) : bool {
+		if (!empty($fileValue = $this->fileRead($key))){
+			if(count($data = explode("::", $fileValue, 3)) != 3) return false;
+			if(time() < (int)$data[0]) return true;
+		}
+		$this->fileDelete($key);
+		return false;
+	}
+
+	/** @inheritDoc */
+	public function get(string $name, callable $function, int $expires = 0) : mixed {
+		if($this->hasItem($name)){
+			$data = explode("::", $this->fileRead($name), 3);
+			return unserialize($data[2]);
+		}
+		$value = $function();
+		if(empty($expires)) $expires = time() + $this->defaultTime;
+		$this->fileSave($name, $expires."::".$name."::".serialize($value));
+		return $value;
+	}
+
+	/**
+	 * @param string $name
+	 * @return object
+	 */
+	private function getPath(string $name) : object {
+		$hexName = md5($name);
+		$subPath = substr($hexName, 0, $this->subLength);
+		return (object)[
+			"path" => $this->path."/".$subPath,
+			"file" => $this->path."/".$subPath."/".$hexName,
+		];
+	}
+
+	/**
+	 * @param string $name
+	 * @param string $data
+	 * @return bool
+	 */
+	private function fileSave(string $name, string $data) : bool {
+		$pathObject = $this->getPath($name);
+		if(!is_dir($pathObject->path)) mkdir($pathObject->path, 0777, true);
+		if(!file_put_contents($pathObject->file, $data)) return false;
+		return true;
+	}
+
+	/**
+	 * @param string $name
+	 * @return string
+	 */
+	private function fileRead(string $name) : string {
+		$pathObject = $this->getPath($name);
+		if (file_exists($pathObject->file) && $fileValue = file_get_contents($pathObject->file)) return $fileValue;
+		return "";
+	}
+
+	/**
+	 * @param $key
+	 * @return bool
+	 */
+	public function fileDelete($key) : bool {
+		$pathObject = $this->getPath($key);
+		if(file_exists($pathObject->file)) unlink($pathObject->file);
+		return true;
+	}
+}

src/Cache/CacheInterface.php

@@ -0,0 +1,40 @@
+<?php
+/**
+ * Created by PhpStorm.
+ * User: Zuev Yuri
+ */
+
+
+namespace Rmphp\Storage\Cache;
+
+interface CacheInterface {
+
+	/**
+	 * @param string $name
+	 * @param $value
+	 * @param int $expires
+	 * @return bool
+	 */
+	public function save(string $name, $value, int $expires = 0) : bool;
+
+	/**
+	 * @param string $key
+	 * @return mixed|null
+	 */
+	public function getItem(string $key);
+
+	/**
+	 * @param string $key
+	 * @return bool
+	 */
+	public function hasItem(string $key) : bool;
+
+	/**
+	 * @param string $name
+	 * @param callable $function
+	 * @param int $expires
+	 * @return mixed
+	 */
+	public function get(string $name, callable $function, int $expires = 0): mixed;
+
+}