From f92c2bbd8b97c64f7de3c412289ec0cac634445b Mon Sep 17 00:00:00 2001
From: User <y_zuev@mail.ru>
Date: Tue, 10 Oct 2023 16:33:22 +0300
Subject: [PATCH] Init

---
 .gitignore                   |   3 +
 README.md                    |  21 +++++++
 composer.json                |  19 ++++++
 src/Cache/Cache.php          | 111 +++++++++++++++++++++++++++++++++++
 src/Cache/CacheInterface.php |  40 +++++++++++++
 5 files changed, 194 insertions(+)
 create mode 100644 .gitignore
 create mode 100644 README.md
 create mode 100644 composer.json
 create mode 100644 src/Cache/Cache.php
 create mode 100644 src/Cache/CacheInterface.php

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..31dc5a1
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,3 @@
+.idea/
+/vendor
+composer.lock
\ No newline at end of file
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..8a154a8
--- /dev/null
+++ b/README.md
@@ -0,0 +1,21 @@
+## Rmphp/Cache
+
+Cache component for **Rmphp**
+
+## Install
+
+Stable version
+
+```bash
+composer require rmphp/cache
+```
+```bash
+composer require rmphp/cache:"^1.0"
+```
+
+
+Dev version contains the latest changes
+
+```bash
+composer require rmphp/cache:"1.x-dev"
+```
diff --git a/composer.json b/composer.json
new file mode 100644
index 0000000..161f42d
--- /dev/null
+++ b/composer.json
@@ -0,0 +1,19 @@
+{
+	"name": "rmphp/cache",
+	"license": "proprietary",
+	"authors": [
+		{
+			"name": "Yuri Zuev",
+			"email": "y_zuev@mail.ru"
+		}
+	],
+	"require": {
+		"php": "^8.1"
+	},
+	"autoload": {
+		"psr-4": {
+			"Rmphp\\Cache\\": "src/"
+		}
+	}
+	
+}
diff --git a/src/Cache/Cache.php b/src/Cache/Cache.php
new file mode 100644
index 0000000..6ff0ac6
--- /dev/null
+++ b/src/Cache/Cache.php
@@ -0,0 +1,111 @@
+<?php
+/**
+ * Created by PhpStorm.
+ * User: Zuev Yuri
+ */
+
+
+namespace 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;
+	}
+}
\ No newline at end of file
diff --git a/src/Cache/CacheInterface.php b/src/Cache/CacheInterface.php
new file mode 100644
index 0000000..2041131
--- /dev/null
+++ b/src/Cache/CacheInterface.php
@@ -0,0 +1,40 @@
+<?php
+/**
+ * Created by PhpStorm.
+ * User: Zuev Yuri
+ */
+
+
+namespace 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;
+
+}
\ No newline at end of file