Merge pull request #739 from GatherPress/GP-737

GP-737: Add GatherPress Alpha warning.

includes/core/classes/class-setup.php

@@ -87,6 +87,7 @@ protected function setup_hooks(): void {
 
 		add_action( 'init', array( $this, 'maybe_flush_rewrite_rules' ) );
 		add_action( 'admin_notices', array( $this, 'check_users_can_register' ) );
+		add_action( 'admin_init', array( $this, 'check_gatherpress_alpha' ) );
 		add_action( 'wp_initialize_site', array( $this, 'on_site_create' ) );
 
 		add_filter( 'block_categories_all', array( $this, 'register_gatherpress_block_category' ) );
@@ -412,4 +413,25 @@ public function check_users_can_register(): void {
 			);
 		}
 	}
+
+	/**
+	 * Checks if the GatherPress Alpha plugin is active and renders an admin notice if not.
+	 *
+	 * This method verifies whether the GatherPress Alpha plugin is currently active.
+	 * If the plugin is not active, it renders an admin notice template to inform the user
+	 * that the GatherPress Alpha plugin is required for compatibility and development purposes.
+	 *
+	 * @since 1.0.0
+	 *
+	 * @return void
+	 */
+	public function check_gatherpress_alpha(): void {
+		if ( ! is_plugin_active( 'gatherpress-alpha/gatherpress-alpha.php' ) ) {
+			Utility::render_template(
+				sprintf( '%s/includes/templates/admin/setup/gatherpress-alpha-check.php', GATHERPRESS_CORE_PATH ),
+				array(),
+				true
+			);
+		}
+	}
 }

includes/templates/admin/setup/gatherpress-alpha-check.php

@@ -0,0 +1,24 @@
+<?php
+/**
+ * Admin Notice for GatherPress Alpha check.
+ *
+ * @package GatherPress\Core
+ * @since 1.0.0
+ */
+
+// Exit if accessed directly.
+defined( 'ABSPATH' ) || exit; // @codeCoverageIgnore
+
+?>
+<div class="notice notice-warning is-dismissible">
+	<p>
+		<?php
+		echo wp_kses_post(
+			__(
+				'The GatherPress Alpha plugin is not installed or activated. This plugin is currently in heavy development and requires GatherPress Alpha to handle breaking changes. Please <a href="https://github.com/GatherPress/gatherpress-alpha" target="_blank">download and install GatherPress Alpha</a> to ensure compatibility and avoid issues.',
+				'gatherpress'
+			)
+		);
+		?>
+	</p>
+</div>