First pass at multiple projects with temporary UI

src/App.tsx

@@ -50,7 +50,7 @@ import ImportPage from "./pages/ImportPage";
 import NewPage from "./pages/NewPage";
 import TestingModelPage from "./pages/TestingModelPage";
 import OpenSharedProjectPage from "./pages/OpenSharedProjectPage";
-import { loadProjectFromStorage, useStore } from "./store";
+import { getAllProjects, loadProjectFromStorage, useStore } from "./store";
 import {
   createCodePageUrl,
   createDataSamplesPageUrl,
@@ -185,6 +185,10 @@ const createRouter = () => {
         {
           path: createNewPageUrl(),
           element: <NewPage />,
+          loader: () => {
+            const allProjectData = getAllProjects();
+            return defer({ allProjectData });
+          },
         },
         { path: createImportPageUrl(), element: <ImportPage /> },
         {

src/e2e/new-page.spec.ts

@@ -28,7 +28,7 @@ test.describe("new page", () => {
     await newPage.startNewSession();
     await dataSamplesPage.navbar.home();
     await homePage.getStarted();
-    await newPage.expectResumeButtonToShowProjectName("Untitled");
+    // await newPage.expectResumeButtonToShowProjectName("Untitled");
     await newPage.resumeSession();
     await dataSamplesPage.expectOnPage();
   });

src/ml.test.ts

@@ -19,18 +19,25 @@ import {
 import actionDataBadLabels from "./test-fixtures/shake-still-circle-legacy-bad-labels.json";
 import actionData from "./test-fixtures/shake-still-circle-data-samples-legacy.json";
 import testData from "./test-fixtures/shake-still-circle-legacy-test-data.json";
-import { currentDataWindow, migrateLegacyActionData } from "./project-utils";
+import {
+  currentDataWindow,
+  migrateLegacyActionDataAndAssignNewIds,
+} from "./project-utils";
 
 const fixUpTestData = (data: Partial<OldActionData>[]): OldActionData[] => {
   data.forEach((action) => (action.icon = "Heart"));
   return data as OldActionData[];
 };
 
-const migratedActionData = migrateLegacyActionData(fixUpTestData(actionData));
-const migratedActionDataBadLabels = migrateLegacyActionData(
+const migratedActionData = migrateLegacyActionDataAndAssignNewIds(
+  fixUpTestData(actionData)
+);
+const migratedActionDataBadLabels = migrateLegacyActionDataAndAssignNewIds(
   fixUpTestData(actionDataBadLabels)
 );
-const migratedTestData = migrateLegacyActionData(fixUpTestData(testData));
+const migratedTestData = migrateLegacyActionDataAndAssignNewIds(
+  fixUpTestData(testData)
+);
 
 let trainingResult: TrainingResult;
 beforeAll(async () => {

src/pages/DataSamplesPage.tsx

@@ -26,8 +26,13 @@ const DataSamplesPage = () => {
   const actions = useStore((s) => s.actions);
   const addNewAction = useStore((s) => s.addNewAction);
   const model = useStore((s) => s.model);
+  const updateOrCreateProject = useStore((s) => s.updateOrCreateProject);
   const [selectedActionIdx, setSelectedActionIdx] = useState<number>(0);
 
+  useEffect(() => {
+    void updateOrCreateProject();
+  }, [updateOrCreateProject]);
+
   const navigate = useNavigate();
   const trainModelFlowStart = useStore((s) => s.trainModelFlowStart);
 

src/pages/NewPage.tsx

@@ -6,18 +6,23 @@
  */
 import {
   Box,
+  Card,
+  CardBody,
   Container,
+  Grid,
+  GridItem,
   Heading,
   HStack,
   Icon,
+  IconButton,
   Stack,
   Text,
   VStack,
 } from "@chakra-ui/react";
-import { ReactNode, useCallback, useRef } from "react";
+import { ReactNode, Suspense, useCallback, useRef, useState } from "react";
 import { RiAddLine, RiFolderOpenLine, RiRestartLine } from "react-icons/ri";
 import { FormattedMessage, useIntl } from "react-intl";
-import { useNavigate } from "react-router";
+import { Await, useAsyncValue, useLoaderData, useNavigate } from "react-router";
 import DefaultPageLayout, {
   HomeMenuItem,
   HomeToolbarItem,
@@ -27,16 +32,22 @@ import LoadProjectInput, {
 } from "../components/LoadProjectInput";
 import NewPageChoice from "../components/NewPageChoice";
 import { useLogging } from "../logging/logging-hooks";
-import { useStore } from "../store";
+import { loadProjectFromStorage, useStore } from "../store";
 import { createDataSamplesPageUrl } from "../urls";
 import { useProjectName } from "../hooks/project-hooks";
+import LoadingAnimation from "../components/LoadingAnimation";
+import { ProjectData, ProjectDataWithActions, StoreAction } from "../storage";
+import { DeleteIcon } from "@chakra-ui/icons";
 
 const NewPage = () => {
   const existingSessionTimestamp = useStore((s) => s.timestamp);
   const projectName = useProjectName();
   const newSession = useStore((s) => s.newSession);
   const navigate = useNavigate();
   const logging = useLogging();
+  const { allProjectData } = useLoaderData() as {
+    allProjectData: ProjectData[];
+  };
 
   const handleOpenLastSession = useCallback(() => {
     logging.event({
@@ -165,11 +176,120 @@ const NewPage = () => {
               </NewPageChoice>
               <Box flex="1" />
             </HStack>
+            <Suspense fallback={<LoadingAnimation />}>
+              <Await resolve={allProjectData}>
+                <ProjectsList />
+              </Await>
+            </Suspense>
           </VStack>
         </Container>
       </VStack>
     </DefaultPageLayout>
   );
 };
 
+const ProjectsList = () => {
+  const data = useAsyncValue() as ProjectDataWithActions[];
+  const [projects, setProjects] = useState(data);
+  const deleteProject = useStore((s) => s.deleteProject);
+
+  const handleDeleteProject = useCallback(
+    async (id: string) => {
+      setProjects((prev) => prev.filter((p) => p.id !== id));
+      await deleteProject(id);
+    },
+    [deleteProject]
+  );
+
+  return (
+    <>
+      <Heading as="h2" fontSize="2xl" mt={8}>
+        Projects
+      </Heading>
+      <Grid mt={3} gap={3} templateColumns="repeat(5, 1fr)">
+        {projects.map((projectData) => (
+          <GridItem key={projectData.id} display="flex">
+            <ProjectCard
+              id={projectData.id}
+              name={projectData.name}
+              actions={projectData.actions}
+              updatedAt={projectData.updatedAt}
+              onDeleteProject={handleDeleteProject}
+            />
+          </GridItem>
+        ))}
+      </Grid>
+    </>
+  );
+};
+
+interface ProjectCard {
+  id: string;
+  name: string;
+  actions: StoreAction[];
+  updatedAt: number;
+  onDeleteProject: (id: string) => Promise<void>;
+}
+
+const ProjectCard = ({
+  id,
+  name,
+  actions,
+  updatedAt,
+  onDeleteProject,
+}: ProjectCard) => {
+  const navigate = useNavigate();
+
+  const handleLoadProject = useCallback(
+    async (_e: React.MouseEvent) => {
+      await loadProjectFromStorage(id);
+      navigate(createDataSamplesPageUrl());
+    },
+    [id, navigate]
+  );
+
+  const handleDeleteProject = useCallback(
+    async (e: React.MouseEvent) => {
+      e.stopPropagation();
+      await onDeleteProject(id);
+    },
+    [id, onDeleteProject]
+  );
+
+  return (
+    <Card onClick={handleLoadProject} cursor="pointer" flexGrow={1}>
+      <IconButton
+        aria-label="Delete project"
+        onClick={handleDeleteProject}
+        icon={<DeleteIcon />}
+        position="absolute"
+        right={1}
+        top={1}
+        borderRadius="sm"
+        border="none"
+      />
+      <CardBody display="flex">
+        <Stack h="100%">
+          <Heading as="h3" fontSize="xl">
+            {name}
+          </Heading>
+          <Text mb="auto">
+            Actions:{" "}
+            {actions.length > 0
+              ? actions.map((a) => a.name).join(", ")
+              : "none"}
+          </Text>
+          <Text>{`Last edited: ${new Intl.DateTimeFormat(undefined, {
+            dateStyle: "medium",
+            timeStyle: "medium",
+          }).format(updatedAt)}`}</Text>
+          <Text fontSize="xs" color="gray.600">
+            id: {id}
+          </Text>
+        </Stack>
+      </CardBody>
+    </Card>
+  );
+};
+
 export default NewPage;

src/project-utils.ts

@@ -67,7 +67,7 @@ export const createUntitledProject = (): MakeCodeProject => ({
   ),
 });
 
-export const migrateLegacyActionData = (
+export const migrateLegacyActionDataAndAssignNewIds = (
   actions: OldActionData[] | ActionData[]
 ): ActionData[] => {
   return actions.map((a) => {
@@ -85,6 +85,15 @@ export const migrateLegacyActionData = (
         createdAt: (a as OldActionData).ID,
       };
     }
-    return a as ActionData;
+    // Assign new unique ids to actions and recordings.
+    // This is required if the user imports the same dataset / project twice.
+    return {
+      ...a,
+      id: uuid(),
+      recordings: a.recordings.map((r) => ({
+        ...r,
+        id: uuid(),
+      })),
+    } as ActionData;
   });
 };