loading and done screen

src/common.ts

@@ -0,0 +1,27 @@
+import { Rating } from "@/schema";
+
+/**
+ * The limit below which we should refetch cards.
+ */
+export const THRESHOLD_CARDS_FOR_REFETCH = 10;
+
+export const KEY_RATING_AGAIN = "1";
+export const KEY_RATING_HARD = "2";
+export const KEY_RATING_GOOD = "3";
+export const KEY_RATING_EASY = "4";
+
+export const KEY_TO_RATING: Record<string, Rating> = {
+  [KEY_RATING_AGAIN]: "Again",
+  [KEY_RATING_HARD]: "Hard",
+  [KEY_RATING_GOOD]: "Good",
+  [KEY_RATING_EASY]: "Easy",
+  [" "]: "Good",
+};
+
+export const RATING_TO_KEY: Record<Rating, string | undefined> = {
+  Again: KEY_RATING_AGAIN,
+  Hard: KEY_RATING_HARD,
+  Good: KEY_RATING_GOOD,
+  Easy: KEY_RATING_EASY,
+  Manual: undefined,
+};

src/components/client-layout.tsx

@@ -1,4 +1,5 @@
 "use client";
+import { FetchIndicator } from "@/components/fetch-indicator";
 // See https://stackoverflow.com/questions/74992326/does-use-client-in-next-js-13-root-layout-make-whole-routes-client-component
 
 import { NavigationBar } from "@/components/nav-bar";
@@ -27,6 +28,7 @@ function ClientLayout({ children }: PropsWithChildren<{}>) {
               duration: 1000,
             }}
           />
+          <FetchIndicator />
         </ThemeProvider>
       </FlashcardSessionProvider>
     </HistoryProvider>

src/components/fetch-indicator.tsx

@@ -0,0 +1,26 @@
+import { Button } from "@/components/ui/button";
+import { trpc } from "@/utils/trpc";
+import { cn } from "@/utils/ui";
+import { useMediaQuery } from "@uidotdev/usehooks";
+import { Loader2 } from "lucide-react";
+
+export function FetchIndicator() {
+  const { isLoading, isFetching } = trpc.card.sessionData.useQuery();
+
+  const isMobile = useMediaQuery("only screen and (max-width: 640px)");
+
+  return isMobile ? null : (
+    <Button
+      className={cn(
+        "fixed right-4 top-16 cursor-default transition duration-500",
+        !isLoading && isFetching ? "opacity-100" : "opacity-0",
+      )}
+      variant="secondary"
+    >
+      <Loader2 className="mr-2 h-4 w-4 animate-spin" />
+      Fetching Cards...
+    </Button>
+  );
+}
+
+FetchIndicator.displayName = "FetchIndicator";

src/components/flashcard/main/editable-flashcard.tsx

@@ -21,23 +21,19 @@ export function EditableFlashcard({ form, setOpen, open, editing }: Props) {
     if (milkdown) milkdown.focus();
   };
 
+  const editorContainerClasses = cn(
+    "col-span-8 flex h-full min-h-80 w-full items-center justify-center overflow-y-auto rounded-md border border-input transition duration-300 sm:col-span-4 sm:min-h-96",
+    editing ? "bg-muted/70" : "",
+  );
+
   return (
     <Form {...form}>
-      <div
-        className={cn(
-          "col-span-8 flex h-full min-h-80 w-full items-center justify-center overflow-y-auto rounded-md border border-input sm:col-span-4 sm:min-h-96",
-          editing ? "bg-muted" : "",
-        )}
-        onClick={onContainerFocus}
-      >
+      <div className={cn(editorContainerClasses)} onClick={onContainerFocus}>
         <FormMarkdownEditor name="question" form={form} disabled={!editing} />
       </div>
 
       <div
-        className={cn(
-          "relative col-span-8 flex h-full min-h-80 w-full items-center justify-center rounded-md border border-input sm:col-span-4 sm:min-h-96",
-          editing ? "bg-muted" : "",
-        )}
+        className={cn(editorContainerClasses, "relative")}
         onClick={onContainerFocus}
       >
         <div

src/components/flashcard/main/flashcard-box.tsx

@@ -3,7 +3,7 @@
 import Flashcard from "@/components/flashcard/main/flashcard";
 import { useFlashcardSession } from "@/providers/flashcard-session";
 import { getReviewDateForEachRating } from "@/utils/fsrs";
-import { Loader2 } from "lucide-react";
+import { Bug, Telescope } from "lucide-react";
 
 type Props = {};
 
@@ -21,24 +21,31 @@ export default function FlashcardBox({}: Props) {
 
   if (isLoading) {
     return (
-      <div className="col-span-12 flex h-96 items-center justify-center">
-        <Loader2 className="h-8 w-8 animate-spin text-accentblue" />
+      <div className="col-span-12 flex h-2/3 flex-col items-center justify-center">
+        <Telescope className="h-24 w-24 animate-bounce" strokeWidth={1.5} />
+        <div className="text-muted-foreground">
+          Fetching cards, hold on tight...
+        </div>
       </div>
     );
   }
 
   if (error) {
     return (
-      <div className="col-span-12 flex h-96 items-center justify-center">
-        <div>{error}</div>
+      <div className="col-span-12 flex h-2/3 flex-col items-center justify-center gap-2">
+        <Bug className="h-24 w-24" strokeWidth={1.5} />
+        <div>Uh oh, something went wrong:</div>
+        <div className="font-mono">{error ?? "Error message here."}</div>
       </div>
     );
   }
 
   if (!currentCard) {
     return (
-      <div className="flex h-96 w-full items-center justify-center">
-        <div>All done for today!</div>
+      <div className="col-span-12 flex h-2/3 flex-col items-center justify-center">
+        <Telescope className="h-24 w-24" strokeWidth={1.5} />
+        <div className="mt-2 text-muted-foreground">All done for now!</div>
+        <div className="text-muted-foreground">Check back later?</div>
       </div>
     );
   }

src/components/flashcard/main/flashcard-menu-bar.tsx

@@ -132,7 +132,7 @@ export function FlashcardMenuBar({
 
       <TooltipProvider>
         <Tooltip>
-          <TooltipTrigger className="cursor-text" onClick={onSkip}>
+          <TooltipTrigger className="cursor-text">
             <Toggle
               aria-label="toggle edit"
               pressed={editing}

src/components/flashcard/main/flashcard.tsx

@@ -1,6 +1,6 @@
 "use client";
 
-import AnswerButtons from "@/components/flashcard/main/answer-buttons";
+import RatingButtons from "@/components/flashcard/main/rating-buttons";
 import { EditableFlashcard } from "@/components/flashcard/main/editable-flashcard";
 import { FlashcardMenuBar } from "@/components/flashcard/main/flashcard-menu-bar";
 import { SwipeActionText } from "@/components/flashcard/main/swipe-action";
@@ -289,10 +289,10 @@ export default function Flashcard({
       ></div>
 
       <div
-        className="z-20 mb-6 w-full sm:static sm:mx-auto sm:w-max"
+        className="z-20 mb-6 w-full sm:static sm:mx-auto sm:mt-2 sm:w-max"
         ref={answerButtonsContainerRef}
       >
-        <AnswerButtons
+        <RatingButtons
           schemaRatingToReviewDay={schemaRatingToReviewDay}
           onRating={onRating}
           open={open}

src/components/flashcard/main/answer-buttons.tsx → src/components/flashcard/main/rating-buttons.tsx

@@ -1,4 +1,6 @@
+import { RATING_TO_KEY } from "@/common";
 import { Button } from "@/components/ui/button";
+import { Kbd } from "@/components/ui/kbd";
 import {
   Tooltip,
   TooltipContent,
@@ -17,7 +19,7 @@ type Props = {
   setOpen: (open: boolean) => void;
 };
 
-function AnswerButton({
+function RatingButton({
   rating,
   onRating,
   dateString,
@@ -28,6 +30,7 @@ function AnswerButton({
   onRating: (rating: Rating) => void;
   dateString: string;
 }) {
+  const key = RATING_TO_KEY[rating] ?? "";
   return (
     <TooltipProvider key={rating}>
       <Tooltip>
@@ -41,7 +44,8 @@ function AnswerButton({
             <div className="sm:hidden">{dateString}</div>
           </Button>
         </TooltipTrigger>
-        <TooltipContent>
+        <TooltipContent className="flex items-center">
+          <Kbd className="text-md mr-2">{key}</Kbd>
           <p>{dateString}</p>
         </TooltipContent>
       </Tooltip>
@@ -50,9 +54,9 @@ function AnswerButton({
 }
 
 /**
- * The buttons to answer a flashcard.
+ * The buttons to rate a flashcard.
  */
-export default function AnswerButtons({
+export default function RatingButtons({
   schemaRatingToReviewDay,
   onRating,
   open,
@@ -70,7 +74,7 @@ export default function AnswerButtons({
       {open ? (
         ratingsToShow.map((rating) => {
           return (
-            <AnswerButton
+            <RatingButton
               key={rating}
               rating={rating}
               onRating={onRating}
@@ -95,4 +99,4 @@ export default function AnswerButtons({
   );
 }
 
-AnswerButtons.displayName = "AnswerButtons";
+RatingButtons.displayName = "RatingButtons";

src/hooks/card/use-delete-card.ts

@@ -1,12 +1,11 @@
+import { THRESHOLD_CARDS_FOR_REFETCH } from "@/common";
 import { type Card } from "@/schema";
 import { removeCardFromSessionData } from "@/utils/session";
 import { ReactQueryOptions, trpc } from "@/utils/trpc";
 
 type DeleteMutationOptions = ReactQueryOptions["card"]["delete"];
 type DeleteMutation = ReturnType<typeof trpc.card.delete.useMutation>;
 
-const THRESHOLD_FOR_REFETCH = 10;
-
 /**
  * Hook to delete a {@link Card}.
  */
@@ -50,7 +49,7 @@ export function useDeleteCard(options?: DeleteMutationOptions): DeleteMutation {
       if (
         !sessionData ||
         sessionData.reviewCards.length + sessionData.newCards.length >
-          THRESHOLD_FOR_REFETCH
+          THRESHOLD_CARDS_FOR_REFETCH
       )
         return;
       await utils.card.sessionData.invalidate();

src/hooks/card/use-edit-card.ts

@@ -1,4 +1,3 @@
-import { getSessionCardWithContentId } from "@/utils/session";
 import { ReactQueryOptions, trpc } from "@/utils/trpc";
 import { produce } from "immer";
 import { toast } from "sonner";

src/hooks/card/use-grade-card.ts

@@ -1,12 +1,11 @@
+import { THRESHOLD_CARDS_FOR_REFETCH } from "@/common";
 import { removeCardFromSessionData } from "@/utils/session";
 import { ReactQueryOptions, trpc } from "@/utils/trpc";
 import { toast } from "sonner";
 
 type GradeMutationOptions = ReactQueryOptions["card"]["grade"];
 type GradeMutation = ReturnType<typeof trpc.card.grade.useMutation>;
 
-const THRESHOLD_FOR_REFETCH = 10;
-
 /**
  * Hook to grade a card.
  */
@@ -39,7 +38,7 @@ export function useGradeCard(options?: GradeMutationOptions): GradeMutation {
       if (
         !sessionData ||
         sessionData.reviewCards.length + sessionData.newCards.length >
-          THRESHOLD_FOR_REFETCH
+          THRESHOLD_CARDS_FOR_REFETCH
       )
         return;
 

src/hooks/card/use-manual-grade-card.ts

@@ -1,15 +1,9 @@
-import {
-  removeCardFromSessionData,
-  updateCardInSessionData,
-} from "@/utils/session";
 import { ReactQueryOptions, trpc } from "@/utils/trpc";
 import { toast } from "sonner";
 
 type ManualGradeMutationOptions = ReactQueryOptions["card"]["manualGrade"];
 type ManualGradeMutation = ReturnType<typeof trpc.card.manualGrade.useMutation>;
 
-const THRESHOLD_FOR_REFETCH = 10;
-
 /**
  * Hook to grade a card.
  */

src/hooks/card/use-suspend.card.ts

@@ -1,3 +1,4 @@
+import { THRESHOLD_CARDS_FOR_REFETCH } from "@/common";
 import { removeCardFromSessionData } from "@/utils/session";
 import { ReactQueryOptions, trpc } from "@/utils/trpc";
 import { isBefore } from "date-fns";
@@ -6,8 +7,6 @@ import { toast } from "sonner";
 type SuspendCardMutationOptions = ReactQueryOptions["card"]["suspend"];
 type SuspendMutation = ReturnType<typeof trpc.card.suspend.useMutation>;
 
-const THRESHOLD_FOR_REFETCH = 10;
-
 export function useSuspendCard(
   options?: SuspendCardMutationOptions,
 ): SuspendMutation {
@@ -32,7 +31,7 @@ export function useSuspendCard(
       if (
         !sessionData ||
         sessionData.reviewCards.length + sessionData.newCards.length >
-          THRESHOLD_FOR_REFETCH
+          THRESHOLD_CARDS_FOR_REFETCH
       )
         return;
 

src/hooks/use-keydown-rating.ts

@@ -1,3 +1,4 @@
+import { KEY_TO_RATING } from "@/common";
 import { Rating, ratings } from "@/schema";
 import { useEffect } from "react";
 
@@ -15,27 +16,16 @@ export default function useKeydownRating(
         onOpen();
         return;
       }
-
-      switch (event.key) {
-        case "1":
-          onRating(ratings[1]);
-          break;
-        case "2":
-          onRating(ratings[2]);
-          break;
-        case "3":
-        case " ":
-          onRating(ratings[3]);
-          break;
-        case "4":
-          onRating(ratings[4]);
-          break;
+      const rating = KEY_TO_RATING[event.key];
+      if (!rating) {
+        return;
       }
+      onRating(rating);
     };
 
-    window.addEventListener("keydown", handleKeyDown);
+    window.addEventListener("keyup", handleKeyDown);
     return () => {
-      window.removeEventListener("keydown", handleKeyDown);
+      window.removeEventListener("keyup", handleKeyDown);
     };
   }, [onRating, open, onOpen]);
 }

src/providers/history.tsx

@@ -192,6 +192,7 @@ export function HistoryProvider({ children }: PropsWithChildren<{}>) {
       document.removeEventListener("keydown", handler);
     };
   });
+
   const state = {
     entries,
     add,