feat: implement empty state for tables

src/features/alerts/components/__tests__/table-alerts.test.tsx

@@ -36,14 +36,18 @@ test("renders token usage cell correctly", async () => {
     }),
   );
 
-  const { getByRole, getByTestId } = render(<TableAlerts />);
+  const { getByRole, getByTestId, queryByText } = render(<TableAlerts />);
 
   await waitFor(() => {
     expect(
       within(screen.getByTestId("alerts-table")).getAllByRole("row"),
     ).toHaveLength(2);
   });
 
+  await waitFor(() => {
+    expect(queryByText(/loading alerts/i)).not.toBeInTheDocument();
+  });
+
   expect(getByTestId("icon-arrow-up")).toBeVisible();
   expect(getByTestId("icon-arrow-down")).toBeVisible();
 
@@ -63,13 +67,121 @@ test("renders N/A when token usage is missing", async () => {
     }),
   );
 
-  const { getByText } = render(<TableAlerts />);
+  const { getByText, queryByText } = render(<TableAlerts />);
 
   await waitFor(() => {
     expect(
       within(screen.getByTestId("alerts-table")).getAllByRole("row"),
     ).toHaveLength(2);
   });
 
+  await waitFor(() => {
+    expect(queryByText(/loading alerts/i)).not.toBeInTheDocument();
+  });
+
   expect(getByText("N/A")).toBeVisible();
 });
+
+test("renders empty state when the API returns no alerts - user has not created multipe workspaces", async () => {
+  server.use(
+    http.get("*/workspaces/:name/alerts", () => {
+      return HttpResponse.json([]);
+    }),
+    http.get("*/workspaces", () => {
+      return HttpResponse.json({
+        workspaces: [
+          {
+            name: "my-awesome-workspace",
+            is_active: true,
+            last_updated: new Date(Date.now()).toISOString(),
+          },
+        ],
+      });
+    }),
+  );
+
+  const { getByText, queryByText, getByRole } = render(<TableAlerts />);
+
+  await waitFor(() => {
+    expect(queryByText(/loading alerts/i)).not.toBeInTheDocument();
+  });
+
+  expect(getByText("Connect CodeGate to your IDE")).toBeVisible();
+  expect(getByText(/learn how to get set up using/i)).toBeVisible();
+
+  expect(getByRole("link", { name: /continue/i })).toHaveAttribute(
+    "href",
+    "https://docs.codegate.ai/quickstart-continue",
+  );
+  expect(getByRole("link", { name: /continue/i })).toHaveAttribute(
+    "target",
+    "_blank",
+  );
+  expect(getByRole("link", { name: /copilot/i })).toHaveAttribute(
+    "href",
+    "https://docs.codegate.ai/quickstart",
+  );
+  expect(getByRole("link", { name: /copilot/i })).toHaveAttribute(
+    "target",
+    "_blank",
+  );
+  expect(getByRole("link", { name: /aider/i })).toHaveAttribute(
+    "href",
+    "https://docs.codegate.ai/how-to/use-with-aider",
+  );
+  expect(getByRole("link", { name: /aider/i })).toHaveAttribute(
+    "target",
+    "_blank",
+  );
+
+  expect(
+    getByRole("link", { name: /codegate documentation/i }),
+  ).toHaveAttribute("href", "https://docs.codegate.ai/");
+  expect(
+    getByRole("link", { name: /codegate documentation/i }),
+  ).toHaveAttribute("target", "_blank");
+});
+
+test("does not render table empty state when the API responds with alerts", async () => {
+  server.use(
+    http.get("*/workspaces/:name/alerts", () => {
+      return HttpResponse.json([
+        makeMockAlert({ token_usage: false, type: "malicious" }),
+      ]);
+    }),
+  );
+
+  const { queryByText } = render(<TableAlerts />);
+
+  await waitFor(() => {
+    expect(queryByText("Connect CodeGate to your IDE")).not.toBeInTheDocument();
+  });
+});
+
+test("renders empty state when the API returns no alerts - user has multiple workspaces", async () => {
+  server.use(
+    http.get("*/workspaces/:name/alerts", () => {
+      return HttpResponse.json([]);
+    }),
+  );
+
+  const { getByText, queryByText, getByRole } = render(<TableAlerts />);
+
+  await waitFor(() => {
+    expect(queryByText(/loading alerts/i)).not.toBeInTheDocument();
+  });
+
+  expect(getByText(/no alerts found/i)).toBeVisible();
+  expect(
+    getByText(
+      /alerts will show up here when you use this workspace in your IDE/i,
+    ),
+  ).toBeVisible();
+
+  expect(
+    getByRole("link", { name: /learn about workspaces/i }),
+  ).toHaveAttribute("href", "https://docs.codegate.ai/features/workspaces");
+  expect(
+    getByRole("link", { name: /learn about workspaces/i }),
+  ).toHaveAttribute("target", "_blank");
+});

src/features/alerts/components/table-alerts.tsx

@@ -9,6 +9,10 @@ import {
   Badge,
   Button,
   ResizableTableContainer,
+  Link,
+  LinkButton,
+  IllustrationDragAndDrop,
+  IllustrationPackage,
 } from "@stacklok/ui-kit";
 import { AlertConversation, QuestionType } from "@/api/generated";
 import {
@@ -20,10 +24,11 @@ import { useAlertSearch } from "@/hooks/useAlertSearch";
 import { useNavigate } from "react-router-dom";
 import { useClientSidePagination } from "@/hooks/useClientSidePagination";
 import { TableAlertTokenUsage } from "./table-alert-token-usage";
-import { Key01, PackageX } from "@untitled-ui/icons-react";
+import { Key01, LinkExternal02, PackageX } from "@untitled-ui/icons-react";
+import { useListWorkspaces } from "@/features/workspace/hooks/use-list-workspaces";
 import { SearchFieldAlerts } from "./search-field-alerts";
-import { useQueryGetWorkspaceAlertTable } from "../hooks/use-query-get-workspace-alerts-table";
 import { SwitchMaliciousAlertsFilter } from "./switch-malicious-alerts-filter";
+import { useQueryGetWorkspaceAlertTable } from "../hooks/use-query-get-workspace-alerts-table";
 
 const getTitle = (alert: AlertConversation) => {
   const prompt = alert.conversation;
@@ -74,10 +79,87 @@ function IssueDetectedCellContent({ alert }: { alert: AlertConversation }) {
   }
 }
 
+function EmptyState({
+  hasMultipleWorkspaces,
+}: {
+  hasMultipleWorkspaces: boolean;
+}) {
+  if (hasMultipleWorkspaces) {
+    return (
+      <div className="w-full flex flex-col items-center py-9 gap-2 px-4">
+        <IllustrationPackage className="size-36" />
+        <p className="font-bold text-4xl text-gray-900">No alerts found</p>
+        <p className="text-secondary text-xl">
+          Alerts will show up here when you use this workspace in your IDE
+        </p>
+        <LinkButton
+          href="https://docs.codegate.ai/features/workspaces"
+          target="_blank"
+          className="mt-4"
+        >
+          Learn about Workspaces
+          <LinkExternal02 />
+        </LinkButton>
+      </div>
+    );
+  }
+
+  return (
+    <div className="w-full flex flex-col items-center py-9 gap-2 px-4">
+      <IllustrationDragAndDrop className="size-36" />
+      <p className="font-bold text-4xl text-gray-900">
+        Connect CodeGate to your IDE
+      </p>
+      <p className="text-secondary text-xl">
+        Learn how to get set up using{" "}
+        <Link
+          href="https://docs.codegate.ai/quickstart-continue"
+          target="_blank"
+          className="no-underline"
+        >
+          Continue
+        </Link>
+        ,{" "}
+        <Link
+          target="_blank"
+          href="https://docs.codegate.ai/quickstart"
+          className="no-underline"
+        >
+          Copilot
+        </Link>
+        , or{" "}
+        <Link
+          target="_blank"
+          href="https://docs.codegate.ai/how-to/use-with-aider"
+          className="no-underline"
+        >
+          Aider
+        </Link>
+        .
+      </p>
+      <LinkButton
+        href="https://docs.codegate.ai/"
+        target="_blank"
+        className="mt-4"
+      >
+        CodeGate Documentation
+        <LinkExternal02 />
+      </LinkButton>
+    </div>
+  );
+}
+
 export function TableAlerts() {
   const { page, nextPage, prevPage } = useAlertSearch();
   const navigate = useNavigate();
-  const { data: filteredAlerts = [] } = useQueryGetWorkspaceAlertTable();
+  const { data: filteredAlerts = [], isLoading: isLoadingAlerts } =
+    useQueryGetWorkspaceAlertTable();
+  const {
+    data: { workspaces } = { workspaces: [] },
+    isLoading: isLoadingWorkspaces,
+  } = useListWorkspaces();
+
+  const isLoading = isLoadingAlerts || isLoadingWorkspaces;
 
   const { dataView, hasNextPage, hasPreviousPage } = useClientSidePagination(
     filteredAlerts,
@@ -114,7 +196,15 @@ export function TableAlerts() {
                 <Column width={200}>Token usage</Column>
               </Row>
             </TableHeader>
-            <TableBody>
+            <TableBody
+              renderEmptyState={() =>
+                isLoading ? (
+                  <div>Loading alerts</div>
+                ) : (
+                  <EmptyState hasMultipleWorkspaces={workspaces.length > 1} />
+                )
+              }
+            >
               {dataView.map((alert) => {
                 return (
                   <Row

src/routes/__tests__/route-dashboard.test.tsx

@@ -170,6 +170,12 @@ describe("Dashboard", () => {
       ).toBeGreaterThan(1);
     });
 
+    await waitFor(() => {
+      expect(
+        screen.queryByText("Connect CodeGate to your IDE"),
+      ).not.toBeInTheDocument();
+    });
+
     const firstRow = within(screen.getByTestId("alerts-table")).getAllByRole(
       "row",
     )[1] as HTMLElement;
@@ -193,6 +199,10 @@ describe("Dashboard", () => {
       ).toBeGreaterThan(1);
     });
 
+    await waitFor(() => {
+      expect(screen.queryByText(/loading alerts/i)).not.toBeInTheDocument();
+    });
+
     expect(
       screen.getByRole("gridcell", {
         name: /blocked malicious package/i,
@@ -219,6 +229,10 @@ describe("Dashboard", () => {
       ).toBeGreaterThan(1);
     });
 
+    await waitFor(() => {
+      expect(screen.queryByText(/loading alerts/i)).not.toBeInTheDocument();
+    });
+
     expect(screen.getByTestId(/alerts-count/i)).toHaveTextContent("2");
     expect(
       screen.getAllByRole("gridcell", {
@@ -262,6 +276,10 @@ describe("Dashboard", () => {
       ).toBeGreaterThan(1);
     });
 
+    await waitFor(() => {
+      expect(screen.queryByText(/loading alerts/i)).not.toBeInTheDocument();
+    });
+
     expect(screen.getByTestId(/alerts-count/i)).toHaveTextContent("2");
     expect(
       screen.getAllByRole("gridcell", {
@@ -289,6 +307,12 @@ describe("Dashboard", () => {
       ).toBeGreaterThan(1);
     });
 
+    await waitFor(() => {
+      expect(
+        screen.queryByText("Connect CodeGate to your IDE"),
+      ).not.toBeInTheDocument();
+    });
+
     const firstRow = within(screen.getByTestId("alerts-table")).getAllByRole(
       "row",
     )[1] as HTMLElement;