added checks if another version of plugin is active and deactivates it

class-visual-portfolio.php

@@ -207,6 +207,7 @@ private function include_dependencies() {
 		require_once $this->plugin_path . 'classes/class-archive-mapping.php';
 		require_once $this->plugin_path . 'classes/class-sitemap.php';
 		require_once $this->plugin_path . 'classes/class-seo-optimization.php';
+		require_once $this->plugin_path . 'classes/class-deactivate-duplicate-plugin.php';
 
 		// 3rd code integration.
 		require_once $this->plugin_path . 'classes/3rd/plugins/class-a3-lazy-load.php';

classes/class-deactivate-duplicate-plugin.php

@@ -0,0 +1,84 @@
+<?php
+/**
+ * Checks if another version of Visual Portfolio/Visual Portfolio Pro is active and deactivates it.
+ *
+ * @package visual-portfolio/deactivate-duplicate-plugin
+ */
+
+if ( ! defined( 'ABSPATH' ) ) {
+	exit;
+}
+
+/**
+ * Class Visual_Portfolio_Deactivate_Duplicate_Plugin
+ */
+class Visual_Portfolio_Deactivate_Duplicate_Plugin {
+	/**
+	 * Visual_Portfolio_Deactivate_Duplicate_Plugin constructor.
+	 */
+	public function __construct() {
+		add_action( 'activated_plugin', array( $this, 'deactivate_other_instances' ) );
+		add_action( 'pre_current_active_plugins', array( $this, 'plugin_deactivated_notice' ) );
+	}
+
+	/**
+	 * Checks if another version of Visual Portfolio/Visual Portfolio Pro is active and deactivates it.
+	 * Hooked on `activated_plugin` so other plugin is deactivated when current plugin is activated.
+	 *
+	 * @param string $plugin The plugin being activated.
+	 */
+	public function deactivate_other_instances( $plugin ) {
+		if ( ! in_array( $plugin, array( 'visual-portfolio/class-visual-portfolio.php', 'visual-portfolio-pro/class-visual-portfolio-pro.php' ), true ) ) {
+			return;
+		}
+
+		$plugin_to_deactivate  = 'visual-portfolio/class-visual-portfolio.php';
+		$deactivated_notice_id = 1;
+
+		// If we just activated the free version, deactivate the Pro version.
+		if ( $plugin === $plugin_to_deactivate ) {
+			$plugin_to_deactivate  = 'visual-portfolio-pro/class-visual-portfolio-pro.php';
+			$deactivated_notice_id = 2;
+		}
+
+		if ( is_multisite() && is_network_admin() ) {
+			$active_plugins = (array) get_site_option( 'active_sitewide_plugins', array() );
+			$active_plugins = array_keys( $active_plugins );
+		} else {
+			$active_plugins = (array) get_option( 'active_plugins', array() );
+		}
+
+		foreach ( $active_plugins as $plugin_basename ) {
+			if ( $plugin_to_deactivate === $plugin_basename ) {
+				set_transient( 'vp_deactivated_notice_id', $deactivated_notice_id, 1 * HOUR_IN_SECONDS );
+				deactivate_plugins( $plugin_basename );
+				return;
+			}
+		}
+	}
+
+	/**
+	 * Displays a notice when either Visual Portfolio or Visual Portfolio Pro is automatically deactivated.
+	 */
+	public function plugin_deactivated_notice() {
+		$deactivated_notice_id = (int) get_transient( 'vp_deactivated_notice_id' );
+		if ( ! in_array( $deactivated_notice_id, array( 1, 2 ), true ) ) {
+			return;
+		}
+
+		$message = __( "Visual Portfolio and Visual Portfolio Pro should not be active at the same time. We've automatically deactivated Visual Portfolio.", 'visual-portfolio' );
+		if ( 2 === $deactivated_notice_id ) {
+			$message = __( "Visual Portfolio and Visual Portfolio Pro should not be active at the same time. We've automatically deactivated Visual Portfolio Pro.", 'visual-portfolio' );
+		}
+
+		?>
+		<div class="notice notice-warning">
+			<p><?php echo esc_html( $message ); ?></p>
+		</div>
+		<?php
+
+		delete_transient( 'vp_deactivated_notice_id' );
+	}
+}
+
+new Visual_Portfolio_Deactivate_Duplicate_Plugin();