Add caching service

composer.json

@@ -25,8 +25,7 @@
     "php": ">=7.4",
     "ext-json": "*",
     "erusev/parsedown": "^1.7",
-    "ramsey/uuid": "^4.2",
-    "salesforce/handlebars-php": "3.0.1"
+    "ramsey/uuid": "^4.2"
   },
   "config": {
     "platform": {
@@ -47,18 +46,16 @@
     "lint-report": "phpcs --standard=./.phpcs.xml.dist --report=checkstyle",
     "fix": "php-cs-fixer fix .",
     "prefix-dependencies": [
-      "@composer --working-dir=php-scoper install",
-      "cd php-scoper && vendor/bin/php-scoper --output-dir=../vendor_prefixed add-prefix --force && cd ..",
-      "@composer dump-autoload -o -a"
+      "composer --working-dir=php-scoper install",
+      "cd php-scoper && vendor/bin/php-scoper add-prefix --output-dir=../vendor_prefixed --force && cd ..",
+      "composer dump-autoload -o",
+      "php generate_autoload.php"
     ]
   },
   "autoload": {
     "psr-4": {
       "WCPOS\\WooCommercePOS\\": "includes/"   
-    },
-    "classmap": [
-      "vendor_prefixed/vendor/firebase/php-jwt/src"
-    ]
+    }
   },
   "autoload-dev": {
     "psr-4": {

generate_autoload.php

@@ -0,0 +1,70 @@
+<?php
+
+$vendorDir = __DIR__ . '/vendor_prefixed';
+$autoloadFile = $vendorDir . '/autoload.php';
+
+$files = array();
+
+$directory = new RecursiveDirectoryIterator( $vendorDir, RecursiveDirectoryIterator::SKIP_DOTS );
+$iterator = new RecursiveIteratorIterator( $directory, RecursiveIteratorIterator::SELF_FIRST );
+
+// Function to strip comments from PHP code
+function strip_comments( $source ) {
+	// Regular expressions for removing single-line and multi-line comments
+	$singleLineCommentPattern = '/\/\/.*$/m';
+	$multiLineCommentPattern = '/\/\*.*?\*\//s';
+	// Remove the comments from the source code
+	$source = preg_replace( $singleLineCommentPattern, '', $source );
+	$source = preg_replace( $multiLineCommentPattern, '', $source );
+	return $source;
+}
+
+foreach ( $iterator as $file ) {
+	if ( $file->isFile() && $file->getExtension() === 'php' ) {
+		$relativePath = str_replace( $vendorDir . '/', '', $file->getPathname() );
+
+		// Read the namespace and class name from the file
+		$fileContent = file_get_contents( $file->getPathname() );
+
+		// Strip comments from the file content
+		$fileContent = strip_comments( $fileContent );
+
+		$namespace = '';
+		$class = '';
+
+		if ( preg_match( '/namespace\s+([^;\s]+)\s*;/', $fileContent, $matches ) ) {
+			$namespace = $matches[1];
+		}
+		if ( preg_match( '/\b(class|interface|trait)\s+([^\s{]+)/', $fileContent, $classMatches ) ) {
+			$class = $classMatches[2];
+		}
+
+		// Only add valid class mappings
+		if ( $namespace && $class ) {
+			$fullClassName = $namespace . '\\' . $class;
+			echo 'Found class: ' . $fullClassName . PHP_EOL;
+			$files[ $fullClassName ] = './' . $relativePath;
+		}
+	}
+}
+
+echo 'Number of entries in files array: ' . count( $files ) . PHP_EOL;
+
+$autoloadContent = "<?php\n\n";
+$autoloadContent .= "// autoload.php @generated by Composer\n\n";
+$autoloadContent .= "\$classMap = [\n";
+
+foreach ( $files as $className => $path ) {
+	$autoloadContent .= "    '$className' => '$path',\n";
+}
+
+$autoloadContent .= "];\n\n";
+$autoloadContent .= "spl_autoload_register(function (\$class) use (\$classMap) {\n";
+$autoloadContent .= "    if (isset(\$classMap[\$class])) {\n";
+$autoloadContent .= "        require __DIR__ . '/' . \$classMap[\$class];\n";
+$autoloadContent .= "    }\n";
+$autoloadContent .= "});\n";
+
+file_put_contents( $autoloadFile, $autoloadContent );
+
+echo "Autoload file generated at $autoloadFile\n";

includes/Services/Cache.php

@@ -0,0 +1,52 @@
+<?php
+/**
+ * Cache Helper class
+ */
+
+namespace WCPOS\WooCommercePOS\Services;
+
+use WCPOS\Vendor\Phpfastcache\Drivers\Files\Config;
+use WCPOS\Vendor\Phpfastcache\Drivers\Files\Driver;
+use WCPOS\Vendor\Phpfastcache\EventManager;
+use WCPOS\Vendor\Phpfastcache\Helper\Psr16Adapter;
+
+/**
+ *
+ */
+class Cache {
+	/**
+	 * Get the cache instance
+	 *
+	 * @param string $instance_id Instance ID.
+	 *
+	 * @return Psr16Adapter
+	 */
+	public static function get_cache_instance( string $instance_id = 'default' ) {
+		static $cache = null;
+
+		if ( $cache === null ) {
+			$upload_dir = wp_upload_dir();
+			$cache_dir = $upload_dir['basedir'] . '/woocommerce_pos_cache';
+
+			if ( ! file_exists( $cache_dir ) ) {
+				wp_mkdir_p( $cache_dir );
+			}
+
+			$config = new Config(
+				array(
+					'path' => $cache_dir,
+				)
+			);
+
+			$event_manager = EventManager::getInstance();
+
+			// Generate a unique instance ID for each logged-in user.
+			$driver = new Driver( $config, $instance_id );
+			$driver->setEventManager( $event_manager );
+
+			$cache = new Psr16Adapter( $driver );
+		}
+
+		return $cache;
+	}
+}

php-scoper/composer.json

@@ -5,7 +5,8 @@
 	"require": {
     "php": ">=7.4",
     "ext-json": "*",
-    "firebase/php-jwt": "v6.9.0"
+    "firebase/php-jwt": "v6.9.0",
+    "phpfastcache/phpfastcache": "^8.1"
   },
   "minimum-stability": "dev",
   "prefer-stable": true,
@@ -17,4 +18,3 @@
     "sort-packages": true
   }
 }
-

php-scoper/scoper.inc.php

@@ -3,50 +3,18 @@
 use Isolated\Symfony\Component\Finder\Finder;
 
 return array(
-	// Define the namespace prefix to use.
-	'prefix' => 'WCPOS\Vendor',
+	'prefix' => 'WCPOS\\Vendor',
 
-	// Finders: Locate files that need to be scoped.
 	'finders' => array(
-		// Finder for the firebase/php-jwt library.
-		Finder::create()->files()
-				->in( 'vendor/firebase/php-jwt' )
-				->name( '*.php' ), // Scope only PHP files.
-
-		/**
-		 * If there is only one library the folder structure is not maintained :(
-		 * By creating a dummy folder we can maintain the folder structure.
-		 */
-		Finder::create()->files()
-			->in( 'dummy' )
-			->name( '*.php' ),
-
-		// Add Finder for yahnis-elsts/plugin-update-checker
-		// NOTE: I ended up rolling my own update checker, so this is no longer needed.
-		// Finder::create()->files()
-		// ->in( 'vendor/yahnis-elsts/plugin-update-checker' )
-		// ->name( '*.php' ), // Scope only PHP files.
-
-		// Add Finder for ramsey/uuid
-		// NOTE: UUID has too many dependencies to scope, so we'll just leave it alone.
-		// Finder::create()->files()
-		// ->in( 'vendor/ramsey/uuid' )
-		// ->name( '*.php' ), // Scope only PHP files.
+		Finder::create()->files()->in( 'vendor/firebase/php-jwt' )->name( '*.php' ),
+		Finder::create()->files()->in( 'vendor/phpfastcache/phpfastcache' )->name( '*.php' ),
 	),
 
-	// 'patchers' are used to transform the code after it has been scoped.
-	// Define any necessary patchers below. For a minimal setup, this might not be needed.
-		'patchers' => array(
-			// Example patcher (you can modify or remove this)
-			function ( string $filePath, string $prefix, string $content ) {
-				// Modify $content as needed or return it unchanged.
-				return $content;
-			},
-		),
-
-	// 'whitelist' can be used to specify classes, functions, and constants
-	// that should not be prefixed (i.e., left in the global scope).
-	'whitelist' => array(
-		// Example: 'YourNamespacePrefix\Firebase\JWT\*',
+	'patchers' => array(
+		function ( string $filePath, string $prefix, string $content ) {
+			return $content;
+		},
 	),
+
+	'whitelist' => array(),
 );