feat: popular categories

src/element/category/category-tile.tsx

@@ -0,0 +1,48 @@
+import useGameInfo from "@/hooks/game-info";
+import Pill from "../pill";
+import { ReactNode } from "react";
+import classNames from "classnames";
+
+export function CategoryTile({
+  gameId,
+  showDetail,
+  children,
+  showFooterTitle,
+  extraDetail,
+}: {
+  gameId: string;
+  showDetail?: boolean;
+  showFooterTitle?: boolean;
+  children?: ReactNode;
+  extraDetail?: ReactNode;
+}) {
+  const game = useGameInfo(gameId);
+
+  return (
+    <div className="flex flex-col gap-2">
+      <div className="flex gap-8">
+        {game?.cover && (
+          <img src={game?.cover} className="max-lg:w-full sm:h-full lg:h-[200px] xl:h-[250px] aspect-[3/4]" />
+        )}
+        {!game?.cover && game?.className && (
+          <div className={classNames("w-full aspect-[3/4] xl:h-[250px]", game.className)} />
+        )}
+        {showDetail && (
+          <div className="flex flex-col gap-4">
+            <h1>{game?.name}</h1>
+            {game?.genres && (
+              <div className="flex gap-2">
+                {game?.genres?.map(a => (
+                  <Pill>{a}</Pill>
+                ))}
+              </div>
+            )}
+            {extraDetail}
+          </div>
+        )}
+      </div>
+      {showFooterTitle && <p>{game?.name}</p>}
+      {children}
+    </div>
+  );
+}

src/element/category/zaps.tsx

@@ -0,0 +1,17 @@
+import { useCategoryZaps } from "@/hooks/category-zaps";
+import Pill from "../pill";
+import { Icon } from "../icon";
+import { formatSatsCompact } from "@/number";
+
+export function CategoryZaps({ gameId }: { gameId: string }) {
+  const zaps = useCategoryZaps(gameId);
+
+  const total = zaps.reduce((acc, v) => (acc += v.amount), 0);
+
+  return (
+    <Pill className="flex gap-2">
+      <Icon name="zap-filled" />
+      {formatSatsCompact(total)}
+    </Pill>
+  );
+}

src/element/video-grid-sorted.tsx

@@ -1,13 +1,26 @@
 import { useLogin } from "@/hooks/login";
 import { useSortedStreams } from "@/hooks/useLiveStreams";
-import { getTagValues, getHost } from "@/utils";
+import { getTagValues, getHost, extractStreamInfo } from "@/utils";
 import { NostrEvent, TaggedNostrEvent } from "@snort/system";
 import { ReactNode, useCallback, useMemo } from "react";
 import { FormattedMessage } from "react-intl";
 import VideoGrid from "./video-grid";
 import { VideoTile } from "./video-tile";
+import { CategoryTile } from "./category/category-tile";
+import { Link } from "react-router-dom";
+import Pill from "./pill";
+import { CategoryZaps } from "./category/zaps";
+import { StreamState } from "@/const";
 
-export default function VideoGridSorted({ evs, showAll }: { evs: Array<TaggedNostrEvent>; showAll?: boolean }) {
+interface VideoGridSortedProps {
+  evs: Array<TaggedNostrEvent>;
+  showAll?: boolean;
+  showEnded?: boolean;
+  showPlanned?: boolean;
+  showPopular?: boolean;
+}
+
+export default function VideoGridSorted({ evs, showAll, showEnded, showPlanned, showPopular }: VideoGridSortedProps) {
   const login = useLogin();
   const mutedHosts = new Set(getTagValues(login?.muted.tags ?? [], "p"));
   const tags = login?.follows.tags ?? [];
@@ -57,13 +70,14 @@ export default function VideoGridSorted({ evs, showAll }: { evs: Array<TaggedNos
       {liveByHashtag.map(t => (
         <GridSection header={`#${t.tag}`} items={t.live} />
       ))}
+      {showPopular && <PopularCategories items={evs} />}
       {hasFollowingLive && liveNow.length > 0 && (
         <GridSection header={<FormattedMessage defaultMessage="Live" id="Dn82AL" />} items={liveNow} />
       )}
-      {plannedEvents.length > 0 && (
+      {plannedEvents.length > 0 && (showPlanned ?? true) && (
         <GridSection header={<FormattedMessage defaultMessage="Planned" id="kp0NPF" />} items={plannedEvents} />
       )}
-      {endedEvents.length > 0 && (
+      {endedEvents.length > 0 && (showEnded ?? true) && (
         <GridSection header={<FormattedMessage defaultMessage="Ended" id="TP/cMX" />} items={endedEvents} />
       )}
     </div>
@@ -74,7 +88,7 @@ function GridSection({ header, items }: { header: ReactNode; items: Array<Tagged
   return (
     <>
       <div className="flex items-center gap-4">
-        <h2 className="whitespace-nowrap">{header}</h2>
+        <h3 className="whitespace-nowrap">{header}</h3>
         <span className="h-[1px] bg-layer-1 w-full" />
       </div>
       <VideoGrid>
@@ -85,3 +99,71 @@ function GridSection({ header, items }: { header: ReactNode; items: Array<Tagged
     </>
   );
 }
+
+function PopularCategories({ items }: { items: Array<TaggedNostrEvent> }) {
+  const categories = useMemo(() => {
+    const grouped = items.reduce(
+      (acc, v) => {
+        const { gameId, participants, status } = extractStreamInfo(v);
+        if (gameId) {
+          acc[gameId] ??= {
+            gameId,
+            viewers: 0,
+            zaps: 0,
+            streams: 0,
+          };
+          if (participants && status === StreamState.Live) {
+            acc[gameId].viewers += Number(participants);
+          }
+          acc[gameId].streams++;
+        }
+        return acc;
+      },
+      {} as Record<
+        string,
+        {
+          gameId: string;
+          viewers: number;
+          zaps: number;
+          streams: number;
+        }
+      >
+    );
+
+    return Object.values(grouped)
+      .sort((a, b) => (a.streams > b.streams ? -1 : 1))
+      .slice(0, 8);
+  }, [items]);
+
+  return (
+    <>
+      <div className="flex items-center gap-4">
+        <h3 className="whitespace-nowrap">
+          <FormattedMessage defaultMessage="Popular" />
+        </h3>
+        <span className="h-[1px] bg-layer-1 w-full" />
+      </div>
+      <div className="flex flex-wrap gap-4">
+        {categories.map(a => (
+          <Link to={`/category/${a.gameId}`} className="xl:w-[180px] lg:w-[170px] max-lg:w-[calc(30dvw-1rem)]">
+            <CategoryTile gameId={a.gameId} showFooterTitle={true}>
+              <div className="flex gap-2">
+                <CategoryZaps gameId={a.gameId} />
+                {a.viewers > 0 && (
+                  <Pill>
+                    <FormattedMessage
+                      defaultMessage="{n} viewers"
+                      values={{
+                        n: a.viewers,
+                      }}
+                    />
+                  </Pill>
+                )}
+              </div>
+            </CategoryTile>
+          </Link>
+        ))}
+      </div>
+    </>
+  );
+}

src/element/video-tile.tsx

@@ -50,11 +50,7 @@ export function VideoTile({
             {showStatus && <StatePill state={status as StreamState} />}
             {participants && (
               <Pill>
-                <FormattedMessage
-                  defaultMessage="{n} viewers"
-                  id="3adEeb"
-                  values={{ n: formatSats(Number(participants)) }}
-                />
+                <FormattedMessage defaultMessage="{n} viewers" values={{ n: formatSats(Number(participants)) }} />
               </Pill>
             )}
           </span>

src/hooks/category-zaps.ts

@@ -0,0 +1,25 @@
+import { EventKind, NostrLink, RequestBuilder, parseZap } from "@snort/system";
+import { useRequestBuilder } from "@snort/system-react";
+import { useMemo } from "react";
+
+export function useCategoryZaps(gameId: string) {
+  const rb = new RequestBuilder(`cat-zaps:${gameId}`);
+  rb.withFilter().kinds([EventKind.LiveEvent]).tag("t", [gameId]);
+  const evs = useRequestBuilder(rb);
+  const links = evs.map(a => NostrLink.fromEvent(a));
+
+  const rbZaps = useMemo(() => {
+    const rb = new RequestBuilder(`cat-zaps:zaps:${gameId}`);
+    if (links.length > 0) {
+      rb.withFilter().kinds([EventKind.ZapReceipt]).replyToLink(links);
+      return rb;
+    }
+  }, [links]);
+  const zapEvents = useRequestBuilder(rbZaps);
+
+  const zaps = useMemo(() => {
+    return zapEvents.map(a => parseZap(a));
+  }, [zapEvents]);
+
+  return zaps;
+}

src/index.css

@@ -73,6 +73,10 @@ a {
   outline: none;
 }
 
+.h-inherit {
+  height: inherit;
+}
+
 input[type="text"],
 textarea,
 input[type="datetime-local"],

src/index.tsx

@@ -66,7 +66,10 @@ async function doInit() {
     await wasmInit(WasmPath);
   }
   try {
-    await workerRelay.init("relay.db");
+    await workerRelay.init({
+      databasePath: "relay.db",
+      insertBatchSize: 100,
+    });
   } catch (e) {
     console.error(e);
   }

src/lang.json

@@ -710,6 +710,9 @@
   "p4N05H": {
     "defaultMessage": "Upload"
   },
+  "pxF+t0": {
+    "defaultMessage": "Popular"
+  },
   "q+zTWM": {
     "defaultMessage": "<s>{person}</s> zapped <s>{amount}</s> sats"
   },

src/number.ts

@@ -3,6 +3,11 @@ const intlSats = new Intl.NumberFormat(undefined, {
   maximumFractionDigits: 2,
 });
 
+const intlShortSats = new Intl.NumberFormat(undefined, {
+  minimumFractionDigits: 0,
+  maximumFractionDigits: 0,
+});
+
 export function formatShort(fmt: Intl.NumberFormat, n: number) {
   if (n < 2e3) {
     return n;
@@ -18,3 +23,7 @@ export function formatShort(fmt: Intl.NumberFormat, n: number) {
 export function formatSats(n: number) {
   return formatShort(intlSats, n);
 }
+
+export function formatSatsCompact(n: number) {
+  return formatShort(intlShortSats, n);
+}

src/pages/category.tsx

@@ -1,7 +1,7 @@
 import CategoryLink from "@/element/category-link";
-import Pill from "@/element/pill";
+import { CategoryTile } from "@/element/category/category-tile";
+import { CategoryZaps } from "@/element/category/zaps";
 import VideoGridSorted from "@/element/video-grid-sorted";
-import useGameInfo from "@/hooks/game-info";
 import { EventKind, RequestBuilder } from "@snort/system";
 import { useRequestBuilder } from "@snort/system-react";
 import { useMemo } from "react";
@@ -29,7 +29,7 @@ export const AllCategories = [
     id: "music",
     name: <FormattedMessage defaultMessage="Music" />,
     icon: "music",
-    tags: ["music"],
+    tags: ["music", "radio"],
     priority: 0,
     className: "bg-category-gradient-3",
   },
@@ -69,7 +69,6 @@ export const AllCategories = [
 
 export default function Category() {
   const { id } = useParams();
-  const game = useGameInfo(id);
 
   const sub = useMemo(() => {
     if (!id) return;
@@ -90,19 +89,19 @@ export default function Category() {
           <CategoryLink key={a.id} {...a} />
         ))}
       </div>
-      <div className="flex gap-8 py-8">
-        {game?.cover && <img src={game?.cover} className="h-[250px]" />}
-        <div className="flex flex-col gap-4">
-          <h1>{game?.name}</h1>
-          {game?.genres && (
-            <div className="flex gap-2">
-              {game?.genres?.map(a => (
-                <Pill>{a}</Pill>
-              ))}
-            </div>
-          )}
+      {id && (
+        <div className="flex gap-4 py-8">
+          <CategoryTile
+            gameId={id}
+            showDetail={true}
+            extraDetail={
+              <div className="flex">
+                <CategoryZaps gameId={id} />
+              </div>
+            }
+          />
         </div>
-      </div>
+      )}
       <VideoGridSorted evs={results} showAll={true} />
     </div>
   );

src/pages/root.tsx

@@ -13,7 +13,7 @@ export function RootPage() {
           <CategoryLink key={a.id} {...a} />
         ))}
       </div>
-      <VideoGridSorted evs={streams} />
+      <VideoGridSorted evs={streams} showEnded={false} showPopular={true} />
     </div>
   );
 }

src/service/game-database.ts

@@ -14,9 +14,18 @@ export default class GameDatabase {
   }
 
   async getGame(id: string) {
+    const cacheKey = `game:${id}`;
+    const cached = window.sessionStorage.getItem(cacheKey);
+    if (cached) {
+      return JSON.parse(cached) as GameInfo;
+    }
     const rsp = await fetch(`${this.url}/games/${id}`);
     if (rsp.ok) {
-      return (await rsp.json()) as GameInfo | undefined;
+      const info = (await rsp.json()) as GameInfo | undefined;
+      if (info) {
+        window.sessionStorage.setItem(cacheKey, JSON.stringify(info));
+      }
+      return info;
     }
   }
 }

src/translations/en.json

@@ -235,6 +235,7 @@
   "oHPB8Q": "Zap {name}",
   "oZrFyI": "Stream type should be HLS",
   "p4N05H": "Upload",
+  "pxF+t0": "Popular",
   "q+zTWM": "<s>{person}</s> zapped <s>{amount}</s> sats",
   "q9ryv4": "Cover image URL (optional)",
   "qx6bv2": "Stream Goal (optional)",

src/utils.ts

@@ -172,6 +172,18 @@ export function extractGameTag(tags: Array<string>) {
       };
     }
   }
+  if (gameId === undefined) {
+    const lowerTags = tags.map(a => a.toLowerCase());
+    const anyCat = AllCategories.find(a => a.tags.some(b => lowerTags.includes(b)));
+    if (anyCat) {
+      gameInfo = {
+        id: anyCat?.id,
+        name: anyCat.name,
+        genres: anyCat.tags,
+        className: anyCat.className,
+      };
+    }
+  }
   return { gameInfo, gameId };
 }