fix: rest-api-pagination

src/css/settings.scss

@@ -142,7 +142,7 @@ body.js {
 	}
 
 	#target_version {
-		min-width: 200px;
+		min-inline-size: 200px;
 		margin-inline-start: 8px;
 	}
 
@@ -158,9 +158,9 @@ body.js {
 
 	// Warning box styling
 	#version-switch-warning {
-		margin-top: 20px !important;
+		margin-block-start: 20px !important;
 		padding: 12px 16px;
-		border-left: 4px solid #dba617;
+		border-inline-start: 4px solid #dba617;
 		background: #fff8e5;
 		border-radius: 4px;
 
@@ -183,31 +183,31 @@ body.js {
 		}
 	}
 
-  .notice {
-    &.notice {
-      &-success {
-        border-left-color: #00a32a;
-      }
+	.notice {
+		&.notice {
+			&-success {
+				border-inline-start-color: #00a32a;
+			}
 
-      &-error {
-        border-left-color: #d63638;
-      }
+			&-error {
+				border-inline-start-color: #d63638;
+			}
 
-      &-warning {
-        border-left-color: #dba617;
-      }
+			&-warning {
+				border-inline-start-color: #dba617;
+			}
 
-      &-info {
-        border-left-color: #72aee6;
-      }
-    }
-  }
+			&-info {
+				border-inline-start-color: #72aee6;
+			}
+		}
+	}
 }
 
 .version-switch-settings {
 	.form-table {
 		th {
-			width: 180px;
+			inline-size: 180px;
 		}
 	}
 }

src/php/rest-api/class-snippets-rest-controller.php

@@ -80,6 +80,9 @@ public function register_routes() {
 			[ 'network' ]
 		);
 
+		// Allow standard collection parameters (page, per_page, etc.) on the collection route.
+		$collection_args = array_merge( $network_args, $this->get_collection_params() );
+
 		register_rest_route(
 			$this->namespace,
 			$route,
@@ -88,7 +91,7 @@ public function register_routes() {
 					'methods'             => WP_REST_Server::READABLE,
 					'callback'            => [ $this, 'get_items' ],
 					'permission_callback' => [ $this, 'get_items_permissions_check' ],
-					'args'                => $network_args,
+					'args'                => $collection_args,
 				],
 				[
 					'methods'             => WP_REST_Server::CREATABLE,
@@ -186,22 +189,44 @@ public function register_routes() {
 	}
 
 	/**
-	 * Retrieves a collection of snippets.
+	 * Retrieves a collection of snippets, with pagination.
 	 *
 	 * @param WP_REST_Request $request Full details about the request.
 	 *
 	 * @return WP_REST_Response Response object on success.
 	 */
 	public function get_items( $request ): WP_REST_Response {
-		$snippets = get_snippets();
+		$network = $request->get_param( 'network' );
+		$all_snippets = get_snippets( [], $network );
+
+		// Get collection params (page, per_page).
+		$collection_params = $this->get_collection_params();
+		$per_page_request = (int) $request->get_param( 'per_page' );
+    $per_page = max( 1, $per_page_request ? $per_page_request : (int) $collection_params['per_page']['default'] );
+
+		$page_request = (int) $request->get_param( 'page' );
+		$page = max( 1, $page_request ? $page_request : (int) $collection_params['page']['default'] );
+
+    // Count total items
+		$total_items = count( $all_snippets );
+		$total_pages = (int) ceil( $total_items / $per_page );
+
+		// Slice the full list to the requested page.
+		$offset = ( $page - 1 ) * $per_page;
+		$snippets = array_slice( $all_snippets, $offset, $per_page );
+
 		$snippets_data = [];
 
 		foreach ( $snippets as $snippet ) {
 			$snippet_data = $this->prepare_item_for_response( $snippet, $request );
 			$snippets_data[] = $this->prepare_response_for_collection( $snippet_data );
 		}
 
-		return rest_ensure_response( $snippets_data );
+		$response = rest_ensure_response( $snippets_data );
+		$response->header( 'X-WP-Total', (string) $total_items );
+		$response->header( 'X-WP-TotalPages', (string) $total_pages );
+
+		return $response;
 	}
 
 	/**