feat: add debug option to enable version change section

Author: imantsk

src/php/settings/settings-fields.php

@@ -50,6 +50,9 @@ function get_default_settings(): array {
 		'version-switch' => [
 			'selected_version'  => '',
 		],
+		'debug' => [
+			'enable_version_change' => false,
+		],
 	];
 
 	$defaults = apply_filters( 'code_snippets_settings_defaults', $defaults );
@@ -83,6 +86,11 @@ function get_settings_fields(): array {
 			'type' => 'action',
 			'desc' => __( 'Use this button to manually clear snippets caches.', 'code-snippets' ),
 		],
+    	'enable_version_change' => [
+			'name'  => __( 'Version Change', 'code-snippets' ),
+			'type'  => 'checkbox',
+			'label' => __( 'Enable the ability to switch or rollback versions of the Code Snippets core plugin.', 'code-snippets' ),
+		],
 	];
 
 	$fields['version-switch'] = [

src/php/settings/settings.php

@@ -139,9 +139,14 @@ function get_settings_sections(): array {
 		'general'        => __( 'General', 'code-snippets' ),
 		'editor'         => __( 'Code Editor', 'code-snippets' ),
 		'debug'          => __( 'Debug', 'code-snippets' ),
-		'version-switch' => __( 'Version', 'code-snippets' ),
 	);
 
+	// Only show the Version section when the debug setting to enable version changes is enabled.
+	$enable_version = get_setting( 'debug', 'enable_version_change' );
+	if ( $enable_version ) {
+		$sections['version-switch'] = __( 'Version', 'code-snippets' );
+	}
+
 	return apply_filters( 'code_snippets_settings_sections', $sections );
 }
 
@@ -169,8 +174,13 @@ function register_plugin_settings() {
 		add_settings_section( $section_id, $section_name, '__return_empty_string', 'code-snippets' );
 	}
 
-	// Register settings fields.
+	// Register settings fields. Only register fields for sections that exist (some sections may be gated by settings).
+	$registered_sections = get_settings_sections();
 	foreach ( get_settings_fields() as $section_id => $fields ) {
+		if ( ! isset( $registered_sections[ $section_id ] ) ) {
+			continue;
+		}
+
 		foreach ( $fields as $field_id => $field ) {
 			$field_object = new Setting_Field( $section_id, $field_id, $field );
 			add_settings_field( $field_id, $field['name'], [ $field_object, 'render' ], 'code-snippets', $section_id );