From 235007d2955f7d40e547c3333ba0c097eede8116 Mon Sep 17 00:00:00 2001
From: nikek <nikek@spotify.com>
Date: Mon, 8 Jun 2020 14:06:35 +0200
Subject: [PATCH] Collapsible sidebar item for auth providers

---
 packages/app/src/components/Root/Root.tsx     |  4 +-
 packages/core/src/layout/Sidebar/Items.tsx    |  1 -
 .../core/src/layout/Sidebar/UserSettings.tsx  | 83 +++++++++++++++++++
 packages/core/src/layout/Sidebar/index.ts     |  1 +
 4 files changed, 86 insertions(+), 3 deletions(-)
 create mode 100644 packages/core/src/layout/Sidebar/UserSettings.tsx

diff --git a/packages/app/src/components/Root/Root.tsx b/packages/app/src/components/Root/Root.tsx
index 20eabbcac5..cdb8469ee2 100644
--- a/packages/app/src/components/Root/Root.tsx
+++ b/packages/app/src/components/Root/Root.tsx
@@ -31,7 +31,7 @@ import {
   SidebarDivider,
   SidebarSearchField,
   SidebarSpace,
-  SidebarUserBadge,
+  SidebarUserSettings,
   SidebarThemeToggle,
 } from '@backstage/core';
 
@@ -84,7 +84,7 @@ const Root: FC<{}> = ({ children }) => (
       <SidebarSpace />
       <SidebarDivider />
       <SidebarThemeToggle />
-      <SidebarUserBadge />
+      <SidebarUserSettings />
     </Sidebar>
     {children}
   </SidebarPage>
diff --git a/packages/core/src/layout/Sidebar/Items.tsx b/packages/core/src/layout/Sidebar/Items.tsx
index ddd71cc189..412800447a 100644
--- a/packages/core/src/layout/Sidebar/Items.tsx
+++ b/packages/core/src/layout/Sidebar/Items.tsx
@@ -148,7 +148,6 @@ export const SidebarItem: FC<SidebarItemProps> = ({
       </NavLink>
     );
   }
-
   return (
     <NavLink
       className={clsx(classes.root, classes.open)}
diff --git a/packages/core/src/layout/Sidebar/UserSettings.tsx b/packages/core/src/layout/Sidebar/UserSettings.tsx
new file mode 100644
index 0000000000..26cffa0c35
--- /dev/null
+++ b/packages/core/src/layout/Sidebar/UserSettings.tsx
@@ -0,0 +1,83 @@
+import React, { useState, useContext, useEffect, useRef } from 'react';
+import Collapse from '@material-ui/core/Collapse';
+import ExpandLess from '@material-ui/icons/ExpandLess';
+import ExpandMore from '@material-ui/icons/ExpandMore';
+import StarBorder from '@material-ui/icons/StarBorder';
+import { SidebarContext } from './config';
+import { SidebarItem, SidebarDivider } from './Items';
+import AccountCircleIcon from '@material-ui/icons/AccountCircle';
+import Divider from '@material-ui/core/Divider';
+import { useApi, googleAuthApiRef, ProfileInfo } from '@backstage/core-api';
+import { Avatar, IconButton } from '@material-ui/core';
+import PowerButton from '@material-ui/icons/PowerSettingsNew';
+import { SidebarThemeToggle } from './SidebarThemeToggle';
+
+export function SidebarUserSettings() {
+  const { isOpen: sidebarOpen } = useContext(SidebarContext);
+  const [open, setOpen] = React.useState(false);
+  const ref = useRef<Element>(); // for scrolling down when collapse item opens
+
+  const googleAuth = useApi(googleAuthApiRef);
+  const [profile, setProfile] = useState<ProfileInfo>();
+
+  // TODO(soapraj): List all the providers supported by the app and let user log in from here
+  // TODO(soapraj): How to observe if the user is logged in
+  useEffect(() => {
+    googleAuth.getProfile({ optional: true }).then(googleProfile => {
+      setProfile(googleProfile);
+    });
+  }, [googleAuth, open]);
+
+  const handleClick = () => {
+    setOpen(!open);
+    setTimeout(() => ref.current?.scrollIntoView({ behavior: 'smooth' }), 300);
+  };
+
+  // Close the provider list when sidebar collapse
+  useEffect(() => {
+    if (!sidebarOpen && open) setOpen(false);
+  }, [sidebarOpen]);
+
+  // Handle main auth info that is shown on the collapsible SidebarItem
+  let avatar;
+  let displayName;
+  if (profile) {
+    // const classes = useStyles();
+    const email = profile.email;
+    const name = profile.name;
+    const imageUrl = profile.picture;
+    const avatarFallback = email.charAt(0).toUpperCase() + email.slice(1);
+    const emailTrimmed = email.split('@')[0];
+    const displayEmail =
+      emailTrimmed.charAt(0).toUpperCase() + emailTrimmed.slice(1);
+    displayName = name ?? displayEmail;
+    avatar = imageUrl
+      ? () => <Avatar alt={name} src={imageUrl} />
+      : () => <Avatar alt={name}>{avatarFallback[0]}</Avatar>;
+  }
+
+  return (
+    <>
+      <Divider innerRef={ref} />
+      <SidebarItem
+        text={displayName || 'Sign In'}
+        onClick={handleClick}
+        icon={avatar || AccountCircleIcon}
+        disableSelected
+      >
+        {open ? <ExpandMore /> : <ExpandLess />}
+      </SidebarItem>
+      <Collapse in={open} timeout="auto" unmountOnExit>
+        <SidebarItem text="Google" icon={StarBorder} disableSelected>
+          <IconButton
+            onClick={() =>
+              profile ? googleAuth.logout() : googleAuth.getAccessToken()
+            }
+          >
+            <PowerButton color={profile ? 'primary' : 'disabled'} />
+          </IconButton>
+        </SidebarItem>
+      </Collapse>
+    </>
+  );
+}
diff --git a/packages/core/src/layout/Sidebar/index.ts b/packages/core/src/layout/Sidebar/index.ts
index baefc3d0e8..2bd961e197 100644
--- a/packages/core/src/layout/Sidebar/index.ts
+++ b/packages/core/src/layout/Sidebar/index.ts
@@ -33,3 +33,4 @@ export {
 } from './config';
 export type { SidebarContextType } from './config';
 export { SidebarThemeToggle } from './SidebarThemeToggle';
+export { SidebarUserSettings } from './UserSettings';