Implemented Freemius

Author: ajaydsouza

includes/admin/images/wzkb-icon.jpg

@@ -179,9 +179,11 @@ private function init() {
 
 		$this->hooks();
 
-		// Conditionally load Pro if available.
-		if ( class_exists( 'WebberZone\\Knowledge_Base\\Pro\\Pro' ) ) {
-			$this->pro = new Pro\Pro();
+		// Initialize pro features.
+		if ( wzkb_freemius()->is__premium_only() ) {
+			if ( wzkb_freemius()->can_use_premium_code() ) {
+				$this->pro = new Pro\Pro();
+			}
 		}
 
 		if ( is_admin() ) {

includes/class-main.php

@@ -73,6 +73,75 @@
 	define( 'WZKB_PLUGIN_FILE', __FILE__ );
 }
 
+
+if ( ! function_exists( __NAMESPACE__ . '\wzkb_deactivate_other_instances' ) ) {
+	/**
+	 * Deactivate other instances of WZKB when this plugin is activated.
+	 *
+	 * @param string $plugin The plugin being activated.
+	 * @param bool   $network_wide Whether the plugin is being activated network-wide.
+	 */
+	function wzkb_deactivate_other_instances( $plugin, $network_wide = false ) {
+		$free_plugin = 'knowledgebase/knowledgebase.php';
+		$pro_plugin  = 'knowledgebase-pro/knowledgebase.php';
+
+		// Only proceed if one of our plugins is being activated.
+		if ( ! in_array( $plugin, array( $free_plugin, $pro_plugin ), true ) ) {
+			return;
+		}
+
+		$plugins_to_deactivate = array();
+		$deactivated_plugin    = '';
+
+		// If pro is being activated, deactivate free.
+		if ( $pro_plugin === $plugin ) {
+			if ( is_plugin_active( $free_plugin ) || ( $network_wide && is_plugin_active_for_network( $free_plugin ) ) ) {
+				$plugins_to_deactivate[] = $free_plugin;
+				$deactivated_plugin      = 'WebberZone Knowledge Base';
+			}
+		}
+
+		// If free is being activated, deactivate pro.
+		if ( $free_plugin === $plugin ) {
+			if ( is_plugin_active( $pro_plugin ) || ( $network_wide && is_plugin_active_for_network( $pro_plugin ) ) ) {
+				$plugins_to_deactivate[] = $pro_plugin;
+				$deactivated_plugin      = 'WebberZone Knowledge Base Pro';
+			}
+		}
+
+		if ( ! empty( $plugins_to_deactivate ) ) {
+			deactivate_plugins( $plugins_to_deactivate, false, $network_wide );
+			set_transient( 'wzkb_deactivated_notice', $deactivated_plugin, 1 * HOUR_IN_SECONDS );
+		}
+	}
+	add_action( 'activated_plugin', __NAMESPACE__ . '\wzkb_deactivate_other_instances', 10, 2 );
+}
+
+// Show admin notice about automatic deactivation.
+if ( ! has_action( 'admin_notices', __NAMESPACE__ . '\wzkb_show_deactivation_notice' ) ) {
+	add_action(
+		'admin_notices',
+		function () {
+			$deactivated_plugin = get_transient( 'wzkb_deactivated_notice' );
+			if ( $deactivated_plugin ) {
+				/* translators: %s: Name of the deactivated plugin */
+				$message = sprintf( __( "WebberZone Knowledge Base and WebberZone Knowledge Base Pro should not be active at the same time. We've automatically deactivated %s.", 'knowledgebase' ), $deactivated_plugin );
+				?>
+			<div class="updated" style="border-left: 4px solid #ffba00;">
+				<p><?php echo esc_html( $message ); ?></p>
+			</div>
+				<?php
+				delete_transient( 'wzkb_deactivated_notice' );
+			}
+		}
+	);
+}
+
+if ( ! function_exists( __NAMESPACE__ . '\wzkb_freemius' ) ) {
+	// Finally load Freemius integration.
+	require_once plugin_dir_path( __FILE__ ) . 'load-freemius.php';
+}
+
 // Load the autoloader.
 require_once WZKB_PLUGIN_DIR . 'includes/autoloader.php';
 

knowledgebase.php

@@ -0,0 +1,78 @@
+<?php
+/**
+ * Initializes Freemius SDK for WebberZone Knowledge Base Pro.
+ *
+ * @package WebberZone\Knowledge_Base
+ */
+
+namespace WebberZone\Knowledge_Base;
+
+if ( ! defined( 'ABSPATH' ) ) {
+	exit;
+}
+
+if ( ! function_exists( __NAMESPACE__ . '\wzkb_freemius' ) ) {
+	/**
+	 * Initialize Freemius SDK.
+	 */
+	function wzkb_freemius() {
+		global $wzkb_freemius;
+		if ( ! isset( $wzkb_freemius ) ) {
+			// Activate multisite network integration.
+			if ( ! defined( 'WP_FS__PRODUCT_21392_MULTISITE' ) ) {
+				define( 'WP_FS__PRODUCT_21392_MULTISITE', true );
+			}
+			// Include Freemius SDK.
+			require_once __DIR__ . '/vendor/freemius/start.php';
+			$wzkb_freemius = \fs_dynamic_init(
+				array(
+					'id'                  => '21392',
+					'slug'                => 'knowledgebase',
+					'premium_slug'        => 'knowledgebase-pro',
+					'type'                => 'plugin',
+					'public_key'          => 'pk_1f07ee1df929932e63005f9866901',
+					'is_premium'          => true,
+					'premium_suffix'      => 'Pro',
+					'has_premium_version' => true,
+					'has_addons'          => false,
+					'has_paid_plans'      => true,
+					'wp_org_gatekeeper'   => 'OA7#BoRiBNqdf52FvzEf!!074aRLPs8fspif$7K1#4u4Csys1fQlCecVcUTOs2mcpeVHi#C2j9d09fOTvbC0HloPT7fFee5WdS3G',
+					'trial'               => array(
+						'days'               => 14,
+						'is_require_payment' => true,
+					),
+					'menu'                => array(
+						'slug'       => 'edit.php?post_type=wz_knowledgebase',
+						'first-path' => 'edit.php?post_type=wz_knowledgebase&page=wzkb-setup',
+						'contact'    => false,
+						'support'    => false,
+					),
+				)
+			);
+		}
+		$wzkb_freemius->add_filter( 'plugin_icon', __NAMESPACE__ . '\\wzkb_freemius_get_plugin_icon' );
+		$wzkb_freemius->add_filter( 'after_uninstall', __NAMESPACE__ . '\\wzkb_freemius_uninstall' );
+		return $wzkb_freemius;
+	}
+
+	/**
+	 * Get the plugin icon.
+	 *
+	 * @return string
+	 */
+	function wzkb_freemius_get_plugin_icon() {
+		return __DIR__ . '/includes/admin/images/wzkb-icon.jpg';
+	}
+
+	/**
+	 * Uninstall the plugin.
+	 */
+	function wzkb_freemius_uninstall() {
+		require_once __DIR__ . '/uninstaller.php';
+	}
+
+	// Init Freemius.
+	wzkb_freemius();
+	// Signal that SDK was initiated.
+	do_action( 'wzkb_freemius_loaded' );
+}