fix: Use /projects as the landing page (#72)

Previously, there was a pseudo-workspaces page that was leftover from prototyping, but doesn't make sense in the revised flow.

Now, we have a `/projects` page, and after logging in, the user should be taken to that page:
![2022-01-25 20 13 58](https://user-images.githubusercontent.com/88213859/151102949-e756c995-eb43-42db-948d-931c2f0a1fca.gif)

This implements a client-side redirect to land on our `/projects` route.

site/components/Redirect.test.tsx

@@ -0,0 +1,22 @@
+import { render, waitFor } from "@testing-library/react"
+import singletonRouter from "next/router"
+import mockRouter from "next-router-mock"
+import React from "react"
+import { Redirect } from "./Redirect"
+
+describe("Redirect", () => {
+  // Reset the router to '/' before every test
+  beforeEach(() => {
+    mockRouter.setCurrentUrl("/")
+  })
+
+  it("performs client-side redirect on render", async () => {
+    // When
+    render(<Redirect to="/workspaces/v2" />)
+
+    // Then
+    await waitFor(() => {
+      expect(singletonRouter).toMatchObject({ asPath: "/workspaces/v2" })
+    })
+  })
+})

site/components/Redirect.tsx

@@ -0,0 +1,23 @@
+import React, { useEffect } from "react"
+import { useRouter } from "next/router"
+
+export interface RedirectProps {
+  /**
+   * The path to redirect to
+   * @example '/projects'
+   */
+  to: string
+}
+
+/**
+ * Helper component to perform a client-side redirect
+ */
+export const Redirect: React.FC<RedirectProps> = ({ to }) => {
+  const router = useRouter()
+
+  useEffect(() => {
+    void router.replace(to)
+  }, [])
+
+  return null
+}

site/components/index.tsx

@@ -1,3 +1,4 @@
 export * from "./Button"
 export * from "./EmptyState"
 export * from "./Page"
+export * from "./Redirect"

site/pages/index.tsx

@@ -1,78 +1,18 @@
 import React from "react"
-import Box from "@material-ui/core/Box"
-import { makeStyles } from "@material-ui/core/styles"
-import Paper from "@material-ui/core/Paper"
-import AddWorkspaceIcon from "@material-ui/icons/AddToQueue"
 
-import { EmptyState, SplitButton } from "../components"
-import { Navbar } from "../components/Navbar"
-import { Footer } from "../components/Page"
-import { useUser } from "../contexts/UserContext"
+import { Redirect } from "../components"
 import { FullScreenLoader } from "../components/Loader/FullScreenLoader"
+import { useUser } from "../contexts/UserContext"
 
-const WorkspacesPage: React.FC = () => {
-  const styles = useStyles()
-  const { me, signOut } = useUser(true)
+const IndexPage: React.FC = () => {
+  const { me } = useUser(/* redirectOnError */ true)
 
-  if (!me) {
-    return <FullScreenLoader />
+  if (me) {
+    // Once the user is logged in, just redirect them to /projects as the landing page
+    return <Redirect to="/projects" />
   }
 
-  const createWorkspace = () => {
-    alert("create")
-  }
-
-  const button = {
-    children: "New Workspace",
-    onClick: createWorkspace,
-  }
-
-  return (
-    <div className={styles.root}>
-      <Navbar user={me} onSignOut={signOut} />
-      <div className={styles.header}>
-        <SplitButton<string>
-          color="primary"
-          onClick={createWorkspace}
-          options={[
-            {
-              label: "New workspace",
-              value: "custom",
-            },
-            {
-              label: "New workspace from template",
-              value: "template",
-            },
-          ]}
-          startIcon={<AddWorkspaceIcon />}
-          textTransform="none"
-        />
-      </div>
-
-      <Paper style={{ maxWidth: "1380px", margin: "1em auto", width: "100%" }}>
-        <Box pt={4} pb={4}>
-          <EmptyState message="No workspaces available." button={button} />
-        </Box>
-      </Paper>
-      <Footer />
-    </div>
-  )
+  return <FullScreenLoader />
 }
 
-const useStyles = makeStyles((theme) => ({
-  root: {
-    display: "flex",
-    flexDirection: "column",
-  },
-  header: {
-    display: "flex",
-    flexDirection: "row-reverse",
-    justifyContent: "space-between",
-    margin: "1em auto",
-    maxWidth: "1380px",
-    padding: theme.spacing(2, 6.25, 0),
-    width: "100%",
-  },
-}))
-
-export default WorkspacesPage
+export default IndexPage