added in the ability to do cache

src/Flex.php

@@ -2,6 +2,7 @@
 
 namespace Motiontactic;
 
+use Illuminate\Support\Facades\File;
 use StoutLogic\AcfBuilder\FieldsBuilder;
 
 class Flex
@@ -44,9 +45,38 @@ public function build_flexible_components()
 	}
 
 	public function build()
+	{
+		if ( function_exists( 'storage_path' ) && defined( 'FLEX_CACHE' ) && FLEX_CACHE ) $this->cache();
+		if ( function_exists( 'storage_path' ) && $this->exists( 'flex.php' ) ) {
+			$build = include $this->path( 'flex.php' );
+		} else {
+			$this->flex = apply_filters( 'mt_flexible_component_before_build', $this->flex );
+			$build = $this->flex->build();
+		}
+		\acf_add_local_field_group( $build );
+	}
+
+	private function path( $filename = null )
+	{
+		$directory = storage_path( 'framework/cache' );
+		if ( !$filename ) return $directory;
+		return $directory . '/' . $filename;
+	}
+
+	private function exists( $filename = null ): bool
+	{
+		return file_exists( $this->path( $filename ) );
+	}
+
+	private function cache()
 	{
 		$this->flex = apply_filters( 'mt_flexible_component_before_build', $this->flex );
-		\acf_add_local_field_group( $this->flex->build() );
+		$build = $this->flex->build();
+		File::ensureDirectoryExists( $this->path() );
+		return file_put_contents(
+			$this->path( 'flex.php' ),
+			'<?php return ' . var_export( $build, true ) . ';'
+		) !== false ? count( $build ) : null;
 	}
 
 	public function from_camel_case( $input )
@@ -67,4 +97,4 @@ public static function getInstance()
 
 		return self::$instance;
 	}
-}
+}