improve loading states:

* app loader
 * specific loaders with spinner

app/core/components/spinner.module.css

@@ -0,0 +1,15 @@
+.ring {
+	display: inline-block;
+	width: 50px;
+	height: 50px;
+	border: 3px solid rgba(0, 0, 0, 0.15);
+	border-radius: 50%;
+	border-top-color: currentColor;
+	animation: spin 1s ease-in-out infinite;
+}
+
+@keyframes spin {
+	to {
+		transform: rotate(360deg);
+	}
+}

app/core/components/spinner.tsx

@@ -0,0 +1,11 @@
+import clsx from "clsx";
+
+import styles from "./spinner.module.css";
+
+export default function Spinner() {
+	return (
+		<div className="h-full flex">
+			<div className={clsx(styles.ring, "m-auto text-primary-400")} />
+		</div>
+	);
+}

app/core/layouts/layout/footer.tsx

@@ -29,7 +29,7 @@ function NavLink({ path, label, icon }: NavLinkProps) {
 
 	return (
 		<div className="flex flex-col items-center justify-around h-full">
-			<Link href={path}>
+			<Link href={path} prefetch={false}>
 				<a
 					className={clsx("flex flex-col items-center", {
 						"text-primary-500": isActiveRoute,

app/core/layouts/layout/index.tsx

@@ -1,5 +1,5 @@
 import type { ErrorInfo, FunctionComponent } from "react";
-import { Component } from "react";
+import { Component, Suspense } from "react";
 import {
 	Head,
 	withRouter,
@@ -14,6 +14,7 @@ import type { WithRouterProps } from "next/dist/client/with-router";
 import appLogger from "../../../../integrations/logger";
 
 import Footer from "./footer";
+import Loader from "./loader";
 
 type Props = {
 	title: string;
@@ -23,7 +24,7 @@ type Props = {
 
 const logger = appLogger.child({ module: "Layout" });
 
-const Layout: FunctionComponent<Props> = ({ children, title, pageTitle = title, hideFooter = false }) => {
+const AppLayout: FunctionComponent<Props> = ({ children, title, pageTitle = title, hideFooter = false }) => {
 	return (
 		<>
 			{pageTitle ? (
@@ -32,6 +33,7 @@ const Layout: FunctionComponent<Props> = ({ children, title, pageTitle = title,
 				</Head>
 			) : null}
 
+			<Suspense fallback={<Loader />}>
 				<div className="h-full w-full overflow-hidden fixed bg-gray-100">
 					<div className="flex flex-col w-full h-full">
 						<div className="flex flex-col flex-1 w-full overflow-y-auto">
@@ -42,6 +44,7 @@ const Layout: FunctionComponent<Props> = ({ children, title, pageTitle = title,
 						{!hideFooter ? <Footer /> : null}
 					</div>
 				</div>
+			</Suspense>
 		</>
 	);
 };
@@ -109,4 +112,4 @@ const ErrorBoundary = withRouter(
 	},
 );
 
-export default Layout;
+export default AppLayout;

app/core/layouts/layout/loader.module.css

@@ -0,0 +1,8 @@
+#gradientCanvas {
+	width: 100%;
+	height: 100%;
+	--gradient-color-1: #c3e4ff;
+	--gradient-color-2: #6ec3f4;
+	--gradient-color-3: #eae2ff;
+	--gradient-color-4: #b9beff;
+}

app/core/layouts/layout/loader.tsx

@@ -0,0 +1,26 @@
+import { useEffect } from "react";
+
+import Logo from "../../components/logo";
+import { Gradient } from "./loader-gradient.js";
+
+import styles from "./loader.module.css";
+
+export default function Loader() {
+	useEffect(() => {
+		const gradient = new Gradient();
+		// @ts-ignore
+		gradient.initGradient(`#${styles.gradientCanvas}`);
+	}, []);
+
+	return (
+		<div className="min-h-screen min-w-screen relative">
+			<div className="relative z-10 min-h-screen flex flex-col justify-center py-12 px-4 sm:px-6 lg:px-8">
+				<div className="flex flex-col sm:mx-auto sm:w-full sm:max-w-sm">
+					<Logo className="mx-auto h-12 w-12" />
+					<span className="mt-2 text-center text-lg leading-9 text-gray-900">Loading up Shellphone...</span>
+				</div>
+			</div>
+			<canvas id={styles.gradientCanvas} className="absolute top-0 z-0" />
+		</div>
+	);
+}

app/messages/pages/messages.tsx

@@ -3,13 +3,14 @@ import type { BlitzPage } from "blitz";
 import { Routes, dynamic } from "blitz";
 import { atom, useAtom } from "jotai";
 
-import Layout from "app/core/layouts/layout";
+import AppLayout from "app/core/layouts/layout";
 import ConversationsList from "../components/conversations-list";
 import NewMessageButton from "../components/new-message-button";
 import MissingTwilioCredentials from "app/core/components/missing-twilio-credentials";
 import useNotifications from "app/core/hooks/use-notifications";
 import useCurrentUser from "app/core/hooks/use-current-user";
 import PageTitle from "../../core/components/page-title";
+import Spinner from "../../core/components/spinner";
 
 const Messages: BlitzPage = () => {
 	const { hasFilledTwilioCredentials, hasPhoneNumber } = useCurrentUser();
@@ -26,7 +27,7 @@ const Messages: BlitzPage = () => {
 		return (
 			<>
 				<MissingTwilioCredentials />
-				<PageTitle className="filter blur-sm absolute top-0" title="Messages" />
+				<PageTitle className="filter blur-sm select-none absolute top-0" title="Messages" />
 			</>
 		);
 	}
@@ -35,7 +36,8 @@ const Messages: BlitzPage = () => {
 		<>
 			<PageTitle title="Messages" />
 			<section className="flex flex-grow flex-col">
-				<Suspense fallback="Loading...">
+				<Suspense fallback={<Spinner />}>
+					{/* TODO: skeleton conversations list */}
 					<ConversationsList />
 				</Suspense>
 			</section>
@@ -52,7 +54,7 @@ const NewMessageBottomSheet = dynamic(() => import("../components/new-message-bo
 
 export const bottomSheetOpenAtom = atom(false);
 
-Messages.getLayout = (page) => <Layout title="Messages">{page}</Layout>;
+Messages.getLayout = (page) => <AppLayout title="Messages">{page}</AppLayout>;
 
 Messages.authenticate = { redirectTo: Routes.SignIn().pathname };
 

app/messages/pages/messages/[recipient].tsx

@@ -3,7 +3,7 @@ import type { BlitzPage } from "blitz";
 import { Routes, useRouter } from "blitz";
 import { IoChevronBack, IoInformationCircle, IoCall } from "react-icons/io5";
 
-import Layout from "../../../core/layouts/layout";
+import AppLayout from "../../../core/layouts/layout";
 import Conversation from "../../components/conversation";
 import useConversation from "../../hooks/use-conversation";
 
@@ -14,7 +14,7 @@ const ConversationPage: BlitzPage = () => {
 	const conversation = useConversation(recipient)[0];
 
 	return (
-		<Layout title={pageTitle} hideFooter>
+		<AppLayout title={pageTitle} hideFooter>
 			<header className="absolute top-0 w-screen h-12 backdrop-filter backdrop-blur-sm bg-white bg-opacity-75 border-b grid grid-cols-3 items-center">
 				<span className="col-start-1 col-span-1 pl-2 cursor-pointer" onClick={router.back}>
 					<IoChevronBack className="h-8 w-8" />
@@ -28,7 +28,7 @@ const ConversationPage: BlitzPage = () => {
 			<Suspense fallback={<div className="pt-12">Loading messages with {recipient}</div>}>
 				<Conversation />
 			</Suspense>
-		</Layout>
+		</AppLayout>
 	);
 };
 

app/pages/_app.tsx

@@ -21,7 +21,7 @@ import "app/core/styles/index.css";
 const { publicRuntimeConfig } = getConfig();
 
 export default function App({ Component, pageProps }: AppProps) {
-	const session = useSession();
+	const session = useSession({ suspense: false });
 	usePanelbear(publicRuntimeConfig.panelBear.siteId);
 	useEffect(() => {
 		if (session.userId) {
@@ -42,7 +42,8 @@ export default function App({ Component, pageProps }: AppProps) {
 			FallbackComponent={RootErrorFallback}
 			onReset={useQueryErrorResetBoundary().reset}
 		>
-			<Suspense fallback="Silence, ca pousse">{getLayout(<Component {...pageProps} />)}</Suspense>
+			{/* TODO: better default fallback */}
+			<Suspense fallback={null}>{getLayout(<Component {...pageProps} />)}</Suspense>
 		</ErrorBoundary>
 	);
 }

app/pages/_offline.tsx

@@ -1,11 +1,11 @@
 import { useRouter } from "blitz";
 
-import Layout from "../core/layouts/layout";
+import AppLayout from "../core/layouts/layout";
 
 export default function Offline() {
 	const router = useRouter();
 	return (
-		<Layout title="App went offline">
+		<AppLayout title="App went offline">
 			<h2 className="mt-6 text-center text-3xl leading-9 font-extrabold text-gray-900">
 				Oops, looks like you went offline.
 			</h2>
@@ -17,6 +17,6 @@ export default function Offline() {
 					</span>
 				</button>
 			</p>
-		</Layout>
+		</AppLayout>
 	);
 }

app/phone-calls/pages/calls.tsx

@@ -2,11 +2,12 @@ import { Suspense } from "react";
 import type { BlitzPage } from "blitz";
 import { Routes } from "blitz";
 
-import Layout from "app/core/layouts/layout";
+import AppLayout from "app/core/layouts/layout";
 import PhoneCallsList from "../components/phone-calls-list";
 import MissingTwilioCredentials from "app/core/components/missing-twilio-credentials";
 import useCurrentUser from "app/core/hooks/use-current-user";
 import PageTitle from "../../core/components/page-title";
+import Spinner from "../../core/components/spinner";
 
 const PhoneCalls: BlitzPage = () => {
 	const { hasFilledTwilioCredentials, hasPhoneNumber } = useCurrentUser();
@@ -15,7 +16,7 @@ const PhoneCalls: BlitzPage = () => {
 		return (
 			<>
 				<MissingTwilioCredentials />
-				<PageTitle className="filter blur-sm absolute top-0" title="Calls" />
+				<PageTitle className="filter blur-sm select-none absolute top-0" title="Calls" />
 			</>
 		);
 	}
@@ -24,7 +25,8 @@ const PhoneCalls: BlitzPage = () => {
 		<>
 			<PageTitle className="pl-12" title="Calls" />
 			<section className="flex flex-grow flex-col">
-				<Suspense fallback="Loading...">
+				<Suspense fallback={<Spinner />}>
+					{/* TODO: skeleton phone calls list */}
 					<PhoneCallsList />
 				</Suspense>
 			</section>
@@ -32,7 +34,7 @@ const PhoneCalls: BlitzPage = () => {
 	);
 };
 
-PhoneCalls.getLayout = (page) => <Layout title="Calls">{page}</Layout>;
+PhoneCalls.getLayout = (page) => <AppLayout title="Calls">{page}</AppLayout>;
 
 PhoneCalls.authenticate = { redirectTo: Routes.SignIn() };
 

app/phone-calls/pages/keypad.tsx

@@ -7,7 +7,7 @@ import { Transition } from "@headlessui/react";
 import { IoBackspace, IoCall } from "react-icons/io5";
 
 import { Direction } from "db";
-import Layout from "app/core/layouts/layout";
+import AppLayout from "app/core/layouts/layout";
 import Keypad from "../components/keypad";
 import usePhoneCalls from "../hooks/use-phone-calls";
 import useKeyPress from "../hooks/use-key-press";
@@ -161,7 +161,7 @@ const pressBackspaceAtom = atom(null, (get, set) => {
 	set(phoneNumberAtom, (prevState) => prevState.slice(0, -1));
 });
 
-KeypadPage.getLayout = (page) => <Layout title="Keypad">{page}</Layout>;
+KeypadPage.getLayout = (page) => <AppLayout title="Keypad">{page}</AppLayout>;
 
 KeypadPage.authenticate = { redirectTo: Routes.SignIn() };
 

app/settings/components/billing/billing-history.tsx

@@ -10,10 +10,11 @@ export default function BillingHistory() {
 		skip,
 		pagesNumber,
 		currentPage,
-		goToPreviousPage,
+		lastPage,
 		hasPreviousPage,
-		goToNextPage,
 		hasNextPage,
+		goToPreviousPage,
+		goToNextPage,
 		setPage,
 	} = usePaymentsHistory();
 
@@ -104,8 +105,8 @@ export default function BillingHistory() {
 										Previous
 									</button>
 									<p className="text-sm text-gray-700 self-center">
-										Page <span className="font-medium">1</span> of{" "}
-										<span className="font-medium">4</span>
+										Page <span className="font-medium">{currentPage}</span> of{" "}
+										<span className="font-medium">{lastPage}</span>
 									</p>
 									<button
 										onClick={goToNextPage}

app/settings/components/billing/paddle-link.tsx

@@ -9,7 +9,7 @@ type Props = {
 const PaddleLink: FunctionComponent<Props> = ({ onClick, text }) => (
 	<button className="flex space-x-2 items-center text-left" onClick={onClick}>
 		<HiExternalLink className="w-6 h-6 flex-shrink-0" />
-		<span className="transition-colors duration-150 border-b border-transparent hover:border-primary-500">
+		<span className="font-medium transition-colors duration-150 border-b border-transparent hover:border-primary-500">
 			{text}
 		</span>
 	</button>

app/settings/components/settings-layout.tsx

@@ -1,4 +1,5 @@
 import type { FunctionComponent } from "react";
+import { Suspense } from "react";
 import { Link, Routes, useMutation, useRouter } from "blitz";
 import clsx from "clsx";
 import {
@@ -10,9 +11,10 @@ import {
 	IoPersonCircleOutline,
 } from "react-icons/io5";
 
-import Layout from "app/core/layouts/layout";
-import logout from "app/auth/mutations/logout";
+import AppLayout from "app/core/layouts/layout";
 import Divider from "./divider";
+import Spinner from "../../core/components/spinner";
+import logout from "app/auth/mutations/logout";
 
 const subNavigation = [
 	{ name: "Account", href: Routes.Account(), icon: IoPersonCircleOutline },
@@ -26,7 +28,7 @@ const SettingsLayout: FunctionComponent = ({ children }) => {
 	const [logoutMutation] = useMutation(logout);
 
 	return (
-		<Layout title="Settings">
+		<AppLayout title="Settings">
 			<header className="bg-gray-100 px-2 sm:px-6 lg:px-8">
 				<header className="flex">
 					<span className="flex items-center cursor-pointer" onClick={router.back}>
@@ -43,7 +45,7 @@ const SettingsLayout: FunctionComponent = ({ children }) => {
 								const isCurrentPage = item.href.pathname === router.pathname;
 
 								return (
-									<Link key={item.name} href={item.href}>
+									<Link key={item.name} href={item.href} prefetch>
 										<a
 											className={clsx(
 												isCurrentPage
@@ -79,10 +81,12 @@ const SettingsLayout: FunctionComponent = ({ children }) => {
 						</nav>
 					</aside>
 
-					<div className="flex-grow overflow-y-auto space-y-6 px-2 sm:px-6 lg:col-span-9">{children}</div>
+					<div className="flex-grow overflow-y-auto space-y-6 px-2 sm:px-6 lg:col-span-9">
+						<Suspense fallback={<Spinner />}>{children}</Suspense>
+					</div>
 				</div>
 			</main>
-		</Layout>
+		</AppLayout>
 	);
 };
 

app/settings/hooks/use-payments-history.ts

@@ -14,6 +14,7 @@ export default function usePaymentsHistory() {
 		.fill(-1)
 		.map((_, i) => i + 1);
 	const currentPage = Math.floor((skip / count) * totalPages) + 1;
+	const lastPage = pagesNumber[pagesNumber.length - 1];
 	const hasPreviousPage = skip > 0;
 	const hasNextPage = hasMore && !!nextPage;
 	const goToPreviousPage = () => hasPreviousPage && setSkip(skip - itemsPerPage);
@@ -26,6 +27,7 @@ export default function usePaymentsHistory() {
 		skip,
 		pagesNumber,
 		currentPage,
+		lastPage,
 		hasPreviousPage,
 		hasNextPage,
 		goToPreviousPage,

app/settings/pages/settings/phone.tsx

@@ -1,4 +1,3 @@
-import { Suspense } from "react";
 import type { BlitzPage } from "blitz";
 import { Routes, dynamic } from "blitz";
 
@@ -8,10 +7,8 @@ import PhoneNumberForm from "../../components/phone/phone-number-form";
 const PhoneSettings: BlitzPage = () => {
 	return (
 		<div className="flex flex-col space-y-6">
-			<Suspense fallback="Loading...">
 			<TwilioApiForm />
 			<PhoneNumberForm />
-			</Suspense>
 		</div>
 	);
 };