Minimum required plugin version demo1

src/Basic_Requirement_Checker.php

@@ -15,6 +15,8 @@ if ( ! class_exists( 'WPDesk_Basic_Requirement_Checker' ) ) {
 			
 			const PLUGIN_INFO_KEY_NICE_NAME = 'nice_name';
 			const PLUGIN_INFO_KEY_NAME = 'name';
+			const PLUGIN_INFO_VERSION = 'version';
+			const PLUGIN_INFO_REQUIRED_VERSION = 'required_version';
 			
 			/** @var string */
 			protected $plugin_name;
@@ -107,13 +109,15 @@ if ( ! class_exists( 'WPDesk_Basic_Requirement_Checker' ) ) {
 			/**
 			 * @param string $plugin_name Name in wp format dir/file.php
 			 * @param string $nice_plugin_name Nice plugin name for better looks in notice
+			 * @param string $plugin_require_version required plugin minimum version
 			 *
 			 * @return $this
 			 */
-		public function add_plugin_require( $plugin_name, $nice_plugin_name = null ) {
+			public function add_plugin_require( $plugin_name, $nice_plugin_name = null, $plugin_require_version = null ) {
 				$this->plugin_require[ $plugin_name ] = array(
 					self::PLUGIN_INFO_KEY_NAME      => $plugin_name,
-				self::PLUGIN_INFO_KEY_NICE_NAME => $nice_plugin_name === null ? $plugin_name : $nice_plugin_name
+					self::PLUGIN_INFO_KEY_NICE_NAME => $nice_plugin_name === null ? $plugin_name : $nice_plugin_name,
+					self::PLUGIN_INFO_VERSION       => $plugin_require_version === null ? '0.0' : $plugin_require_version,
 				);
 				
 				return $this;
@@ -204,6 +208,7 @@ if ( ! class_exists( 'WPDesk_Basic_Requirement_Checker' ) ) {
 				$notices = $this->append_plugin_require_notices( $notices );
 				$notices = $this->append_module_require_notices( $notices );
 				$notices = $this->append_settings_require_notices( $notices );
+				$notices = $this->check_minimum_require_plugins_version_and_display_notices( $notices );
 				
 				return $notices;
 			}
@@ -275,6 +280,56 @@ if ( ! class_exists( 'WPDesk_Basic_Requirement_Checker' ) ) {
 				return defined( 'OPENSSL_VERSION_NUMBER' ) && OPENSSL_VERSION_NUMBER > (int) $required_version;
 			}
 			
+			/**
+			 * @param $notices
+			 *
+			 * @return array
+			 */
+			private function check_minimum_require_plugins_version_and_display_notices( $notices ) {
+				
+				if ( $this->require_plugins() > 0 ) {
+					foreach ( $this->require_plugins() as $plugin ) {
+						if ( $plugin[ ucfirst( self::PLUGIN_INFO_VERSION ) ] < $plugin[ self::PLUGIN_INFO_REQUIRED_VERSION ] ) {
+							$notices[] = $this->prepare_notice_message( sprintf( __( 'The &#8220;%s&#8221; plugin requires at least %s version of %s to work correctly. Please update it', $this->get_text_domain() ),
+								esc_html( $this->plugin_name ), $plugin[ self::PLUGIN_INFO_REQUIRED_VERSION ], $plugin[ ucfirst( self::PLUGIN_INFO_KEY_NAME ) ] ) );
+						}
+					}
+				}
+				
+				return $notices;
+			}
+			
+			/**
+			 * Check the plugins directory and retrieve all required plugin files with plugin data.
+			 *
+			 * @return array
+			 */
+			public function require_plugins() {
+				$require_plugins = array();
+				
+				if ( file_exists( ABSPATH . '/wp-admin/includes/plugin.php' ) ) {
+					if ( ! function_exists( 'get_plugins' ) ) {
+						require_once ABSPATH . '/wp-admin/includes/plugin.php';
+					}
+					$get_existing_plugins = ( get_plugins() ? get_plugins() : array() );
+					
+					if ( ! empty( $this->plugin_require ) ) {
+						foreach ( $this->plugin_require as $plugin ) {
+							if ( ! isset( $plugin[ self::PLUGIN_INFO_VERSION ] ) ) {
+								unset( $this->plugin_require[ $plugin[ self::PLUGIN_INFO_KEY_NAME ] ] );
+							} else {
+								if ( self::is_wp_plugin_active( $plugin[ self::PLUGIN_INFO_KEY_NAME ] ) ) {
+									$require_plugins[ $plugin[ self::PLUGIN_INFO_KEY_NAME ] ]                                       = $get_existing_plugins[ $plugin[ self::PLUGIN_INFO_KEY_NAME ] ];
+									$require_plugins[ $plugin[ self::PLUGIN_INFO_KEY_NAME ] ][ self::PLUGIN_INFO_REQUIRED_VERSION ] = $plugin[ self::PLUGIN_INFO_VERSION ];
+								}
+							}
+						}
+					}
+				}
+				
+				return $require_plugins;
+			}
+			
 			/**
 			 * @param array $notices
 			 *