Handle opening project from microbit.org (first cut for testing)

.github/workflows/build.yml

@@ -36,7 +36,7 @@ jobs:
       - run: npm ci
         env:
           NODE_AUTH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-      - run: npm install --no-save @microbit-foundation/[email protected].10 @microbit-foundation/[email protected] @microbit-foundation/[email protected]
+      - run: npm install --no-save @microbit-foundation/[email protected].13 @microbit-foundation/[email protected] @microbit-foundation/[email protected]
         if: github.repository_owner == 'microbit-foundation'
         env:
           NODE_AUTH_TOKEN: ${{ secrets.GITHUB_TOKEN }}

lang/ui.en.json

@@ -87,6 +87,10 @@
     "defaultMessage": "Close",
     "description": "Close button text or label"
   },
+  "code-download-error": {
+    "defaultMessage": "Error downloading the project code",
+    "description": "Title for error message relating to project loading"
+  },
   "coming-soon": {
     "defaultMessage": "Coming soon",
     "description": "Placeholder text for future projects"

src/App.tsx

@@ -22,11 +22,13 @@ import { LoggingProvider } from "./logging/logging-hooks";
 import TranslationProvider from "./messages/TranslationProvider";
 import DataSamplesPage from "./pages/DataSamplesPage";
 import HomePage from "./pages/HomePage";
+import ImportPage from "./pages/ImportPage";
 import NewPage from "./pages/NewPage";
 import TestingModelPage from "./pages/TestingModelPage";
 import {
   createDataSamplesPageUrl,
   createHomePageUrl,
+  createImportPageUrl,
   createNewPageUrl,
   createTestingModelPageUrl,
 } from "./urls";
@@ -96,6 +98,7 @@ const createRouter = () => {
           path: createNewPageUrl(),
           element: <NewPage />,
         },
+        { path: createImportPageUrl(), element: <ImportPage /> },
         {
           path: createDataSamplesPageUrl(),
           element: <DataSamplesPage />,

src/deployment/index.ts

@@ -56,6 +56,7 @@ export interface DeploymentConfig {
 
   termsOfUseLink?: string;
   privacyPolicyLink?: string;
+  activitiesBaseUrl?: string;
 
   logging: Logging;
 }

src/messages/ui.en.json

@@ -173,6 +173,12 @@
       "value": "Close"
     }
   ],
+  "code-download-error": [
+    {
+      "type": 0,
+      "value": "Error downloading the project code"
+    }
+  ],
   "coming-soon": [
     {
       "type": 0,

src/model.ts

@@ -171,3 +171,28 @@ export enum TourId {
   CollectDataToTrainModel = "collectDataToTrainModel",
   TestModelPage = "testModelPage",
 }
+
+/**
+ * Information passed omn the URL from microbit.org.
+ * We call back into microbit.org to grab a JSON file with
+ * full details.
+ */
+export type MicrobitOrgResource = {
+  /**
+   * ID that can be used when fetching the code from microbit.org.
+   */
+  id: string;
+
+  /**
+   * Name of the microbit.org project or lesson.
+   *
+   * We use this to load the target code.
+   */
+  project: string;
+
+  /**
+   * Name of the actual code snippet.
+   * Due to a data issue this can often be the same as the project name.
+   */
+  name: string;
+};

src/pages/ImportPage.tsx

@@ -0,0 +1,87 @@
+import { Project } from "@microbit/makecode-embed/react";
+import { useEffect } from "react";
+import { IntlShape, useIntl } from "react-intl";
+import { useNavigate } from "react-router";
+import { useSearchParams } from "react-router-dom";
+import { useDeployment } from "../deployment";
+import { MicrobitOrgResource } from "../model";
+import { useStore } from "../store";
+import { createDataSamplesPageUrl } from "../urls";
+
+const ImportPage = () => {
+  const navigate = useNavigate();
+  const intl = useIntl();
+  const { activitiesBaseUrl } = useDeployment();
+  const resource = useMicrobitResourceSearchParams();
+  const loadProject = useStore((s) => s.loadProject);
+
+  useEffect(() => {
+    const updateAsync = async () => {
+      if (!resource || !activitiesBaseUrl) {
+        return;
+      }
+      const code = await fetchMicrobitOrgResourceTargetCode(
+        activitiesBaseUrl,
+        resource,
+        intl
+      );
+      loadProject(code);
+      navigate(createDataSamplesPageUrl());
+    };
+    void updateAsync();
+  }, [activitiesBaseUrl, intl, loadProject, navigate, resource]);
+
+  return <></>;
+};
+
+const useMicrobitResourceSearchParams = (): MicrobitOrgResource | undefined => {
+  const [params] = useSearchParams();
+  const id = params.get("id");
+  const project = params.get("project");
+  const name = params.get("name");
+  return id && name && project ? { id, project, name } : undefined;
+};
+
+const isValidProject = (content: Project): content is Project => {
+  return (
+    content &&
+    typeof content === "object" &&
+    "text" in content &&
+    !!content.text
+  );
+};
+
+const fetchMicrobitOrgResourceTargetCode = async (
+  activitiesBaseUrl: string,
+  resource: MicrobitOrgResource,
+  intl: IntlShape
+): Promise<Project> => {
+  const url = `${activitiesBaseUrl}${encodeURIComponent(
+    resource.id
+  )}-makecode.json`;
+  let json;
+  try {
+    const response = await fetch(url);
+    if (!response.ok) {
+      throw new Error(`Unexpected response ${response.status}`);
+    }
+    json = (await response.json()) as object;
+  } catch (e) {
+    const rethrow = new Error(
+      intl.formatMessage({ id: "code-download-error" })
+    );
+    rethrow.stack = e instanceof Error ? e.stack : undefined;
+    throw rethrow;
+  }
+  if (
+    !("editorContent" in json) ||
+    typeof json.editorContent !== "object" ||
+    !json.editorContent ||
+    !isValidProject(json.editorContent)
+  ) {
+    throw new Error(intl.formatMessage({ id: "code-format-error" }));
+  }
+  return json.editorContent;
+};
+
+export default ImportPage;

src/store.ts

@@ -11,7 +11,6 @@ import {
 } from "./makecode/utils";
 import { trainModel } from "./ml";
 import {
-  DatasetEditorJsonFormat,
   DownloadState,
   DownloadStep,
   Gesture,
@@ -131,6 +130,7 @@ export interface Actions {
   downloadDataset(): void;
   dataCollectionMicrobitConnected(): void;
   loadDataset(gestures: GestureData[]): void;
+  loadProject(project: Project): void;
   setEditorOpen(open: boolean): void;
   recordingStarted(): void;
   recordingStopped(): void;
@@ -410,6 +410,25 @@ export const useStore = create<Store>()(
           });
         },
 
+        /**
+         * Generally project loads go via MakeCode as it reads the hex but when we open projects
+         * from microbit.org we have the JSON already and use this route.
+         */
+        loadProject(project: Project) {
+          set(() => {
+            const timestamp = Date.now();
+            return {
+              gestures: getGesturesFromProject(project),
+              model: undefined,
+              project,
+              projectEdited: true,
+              appEditNeedsFlushToEditor: true,
+              timestamp,
+              projectLoadTimestamp: timestamp,
+            };
+          });
+        },
+
         closeTrainModelDialogs() {
           set({
             trainModelDialogStage: TrainModelDialogStage.Closed,
@@ -547,19 +566,14 @@ export const useStore = create<Store>()(
                 // It's a new project. Thanks user. We'll update our state.
                 // This will cause another write to MakeCode but that's OK as it gives us
                 // a chance to validate/update the project
-                const datasetString = newProject.text?.[filenames.datasetJson];
-                const dataset = datasetString
-                  ? (JSON.parse(datasetString) as DatasetEditorJsonFormat)
-                  : { data: [] };
-
                 const timestamp = Date.now();
                 return {
                   project: newProject,
                   projectLoadTimestamp: timestamp,
                   timestamp,
                   // New project loaded externally so we can't know whether its edited.
                   projectEdited: true,
-                  gestures: dataset.data,
+                  gestures: getGesturesFromProject(newProject),
                   model: undefined,
                   isEditorOpen: false,
                 };
@@ -765,3 +779,15 @@ const gestureIcon = ({
   }
   return useableIcons[0];
 };
+
+const getGesturesFromProject = (project: Project): GestureData[] => {
+  const { text } = project;
+  if (text === undefined || !("dataset.json" in text)) {
+    return [];
+  }
+  const dataset = JSON.parse(text["dataset.json"]) as object;
+  if (typeof dataset !== "object" || !("data" in dataset)) {
+    return [];
+  }
+  return dataset.data as GestureData[];
+};

src/urls.ts

@@ -8,6 +8,8 @@ export const createHomePageUrl = () => `${basepath}`;
 
 export const createNewPageUrl = () => `${basepath}new`;
 
+export const createImportPageUrl = () => `${basepath}import`;
+
 export const createDataSamplesPageUrl = () => `${basepath}data-samples`;
 
 export const createTestingModelPageUrl = () => `${basepath}testing-model`;