[ECO-2195] Add market discovery rain

src/typescript/frontend/src/app/launch/page.tsx

@@ -1,14 +1,14 @@
 import ClientLaunchEmojicoinPage from "../../components/pages/launch-emojicoin/ClientLaunchEmojicoinPage";
+import { fetchRandomSymbols } from "@/queries/launch";
 import { type Metadata } from "next";
 import { emoji } from "utils";
 
-export const dynamic = "force-static";
-
 export const metadata: Metadata = {
   title: "launch",
   description: `Launch your own emojicoins using emojicoin.fun ${emoji("party popper")}`,
 };
 
 export default async function LaunchEmojicoinPage() {
-  return <ClientLaunchEmojicoinPage />;
+  const randomSymbols = await fetchRandomSymbols({});
+  return <ClientLaunchEmojicoinPage randomSymbols={randomSymbols} />;
 }

src/typescript/frontend/src/components/pages/launch-emojicoin/ClientLaunchEmojicoinPage.tsx

@@ -19,6 +19,7 @@ import {
 } from "@aptos-labs/ts-sdk";
 import { symbolBytesToEmojis } from "@sdk/emoji_data";
 import MemoizedLaunchAnimation from "./memoized-launch";
+import { EmojiRain } from "./EmojiRain";
 
 const LOADING_TIME = 2000;
 type Stage = "initial" | "loading" | "coding";
@@ -32,7 +33,9 @@ const lastMarketRegistration = (
   return undefined;
 };
 
-const ClientLaunchEmojicoinPage = () => {
+const ClientLaunchEmojicoinPage: React.FC<{
+  randomSymbols: ReturnType<typeof symbolBytesToEmojis>[];
+}> = ({ randomSymbols }) => {
   const searchParams = useSearchParams();
   const emojiParams = searchParams.get("emojis");
   const setEmojis = useEmojiPicker((state) => state.setEmojis);
@@ -137,14 +140,26 @@ const ClientLaunchEmojicoinPage = () => {
   }, [status]);
 
   return (
-    <div className="flex flex-col grow">
+    <div className="flex flex-col grow relative overflow-hidden">
+      {randomSymbols.length > 0 && (
+        <EmojiRain
+          randomSymbols={randomSymbols}
+          onClick={(name) => setEmojis(name.emojis.map((e) => e.emoji))}
+        />
+      )}
       <TextCarousel />
 
       <div className="flex justify-center items-center h-full px-6">
         <div className="relative flex flex-col w-full max-w-[414px]">
           <MemoizedLaunchAnimation loading={isLoadingRegisteredMarket} />
         </div>
       </div>
+      <div
+        className="absolute bottom-0 w-[100%] h-[1%] bg-black z-20"
+        style={{
+          boxShadow: "0px 0px 8px 8px black",
+        }}
+      ></div>
     </div>
   );
 };

src/typescript/frontend/src/components/pages/launch-emojicoin/EmojiRain.tsx

@@ -0,0 +1,97 @@
+import { type symbolBytesToEmojis } from "@sdk/emoji_data";
+import { type AnimationPlaybackControls, useAnimate } from "framer-motion";
+import { useEffect, useMemo, useState } from "react";
+
+const DROP_FALL_TIME = 7.5;
+const DROP_INTERVAL = 1;
+
+export function EmojiRainDrop({
+  name,
+  onClick,
+  index,
+  emojis,
+}: {
+  name: ReturnType<typeof symbolBytesToEmojis>;
+  onClick?: (data: ReturnType<typeof symbolBytesToEmojis>) => void;
+  index: number;
+  emojis: number;
+}) {
+  // Position all emojis above the visible space.
+  const initialY = -200;
+
+  // Calculate a random position on the X axis.
+  const x = useMemo(() => Math.random() * 90 + 5, []);
+
+  // Calculate a random delay for the emojis to be staggered.
+  const delay = useMemo(() => (Math.random() + index) * DROP_INTERVAL, [index]);
+
+  const [scope, animate] = useAnimate();
+  const [controls, setControls] = useState<AnimationPlaybackControls>();
+
+  useEffect(() => {
+    const controls = animate(
+      scope.current,
+      { top: "110vh" },
+      {
+        duration: DROP_FALL_TIME,
+        delay,
+        ease: [],
+        repeat: Infinity,
+        repeatDelay: emojis * DROP_INTERVAL * DROP_FALL_TIME, // Repeat after all the other emojis have fallen.
+      }
+    );
+
+    setControls(controls);
+
+    return () => controls.complete();
+  }, [scope, animate, delay, emojis]);
+
+  return (
+    <div
+      onClick={() => onClick && onClick(name)}
+      onMouseOver={() => {
+        if (controls) {
+          controls.time += delay;
+          controls.pause();
+        }
+      }}
+      onMouseOut={() => controls?.play()}
+      className="absolute emoji-rain-drop z-10 flex flex-col select-none cursor-pointer"
+      style={{
+        left: `${x}vw`,
+        fontSize: "2em",
+        top: initialY,
+      }}
+      ref={scope}
+    >
+      {name.emojis.map((e) => (
+        <span key={`rain-drop-emoji-${e.hex}`}>{e.emoji}</span>
+      ))}
+    </div>
+  );
+}
+
+export function EmojiRain({
+  randomSymbols,
+  onClick,
+}: {
+  randomSymbols: ReturnType<typeof symbolBytesToEmojis>[];
+  onClick?: (symbol: ReturnType<typeof symbolBytesToEmojis>) => void;
+}) {
+  return (
+    <>
+      {randomSymbols.map((name, i) => {
+        const emojiRainDrop = (
+          <EmojiRainDrop
+            key={`rain-drop-${name.emojis.map((e) => e.hex).reduce((a, b) => `${a}-${b}`, "")}`}
+            name={name}
+            onClick={onClick}
+            index={i}
+            emojis={randomSymbols.length}
+          />
+        );
+        return emojiRainDrop;
+      })}
+    </>
+  );
+}

src/typescript/sdk/src/indexer-v2/queries/app/index.ts

@@ -1,3 +1,4 @@
 export * from "./home";
 export * from "./market";
 export * from "./pools";
+export * from "./launch";

src/typescript/sdk/src/indexer-v2/queries/app/launch.ts

@@ -0,0 +1,16 @@
+if (process.env.NODE_ENV !== "test") {
+  require("server-only");
+}
+
+import { DatabaseRpc } from "../../types/json-types";
+import { postgrest } from "../client";
+import { queryHelper } from "../utils";
+import { DatabaseTypeConverter } from "../../types";
+
+const selectRandomSymbols = () =>
+  postgrest.rpc(DatabaseRpc.RandomSymbols, undefined, { get: true });
+
+export const fetchRandomSymbols = queryHelper(
+  selectRandomSymbols,
+  DatabaseTypeConverter[DatabaseRpc.RandomSymbols]
+);

src/typescript/sdk/src/indexer-v2/types/index.ts

@@ -22,7 +22,12 @@ import {
   type ProcessedFields,
   DatabaseRpc,
 } from "./json-types";
-import { type MarketEmojiData, type SymbolEmoji, toMarketEmojiData } from "../../emoji_data";
+import {
+  type MarketEmojiData,
+  symbolBytesToEmojis,
+  type SymbolEmoji,
+  toMarketEmojiData,
+} from "../../emoji_data";
 import { toPeriod, toTrigger, type Period, type Trigger } from "../../const";
 import { toAccountAddressString } from "../../utils";
 import Big from "big.js";
@@ -596,6 +601,10 @@ export const toPriceFeed = (data: DatabaseJsonType["price_feed"]) => {
   };
 };
 
+/// Replace `\x` with `0x` then convert to market symbol data.
+export const toRandomSymbolsRPCResponse = (data: DatabaseJsonType["random_symbols"]) =>
+  symbolBytesToEmojis("0" + data.emojis.substring(1));
+
 export const DatabaseTypeConverter = {
   [TableName.GlobalStateEvents]: toGlobalStateEventModel,
   [TableName.PeriodicStateEvents]: toPeriodicStateEventModel,
@@ -611,6 +620,7 @@ export const DatabaseTypeConverter = {
   [TableName.ProcessorStatus]: toProcessorStatus,
   [TableName.PriceFeed]: toPriceFeed,
   [DatabaseRpc.UserPools]: toUserPoolsRPCResponse,
+  [DatabaseRpc.RandomSymbols]: toRandomSymbolsRPCResponse,
 };
 
 export type DatabaseModels = {

src/typescript/sdk/src/indexer-v2/types/json-types.ts

@@ -287,7 +287,7 @@ export enum TableName {
 
 export enum DatabaseRpc {
   UserPools = "user_pools",
-  PriceFeed = "price_feed",
+  RandomSymbols = "random_symbols",
 }
 
 // Fields that only exist after being processed by a processor.
@@ -365,6 +365,7 @@ export type DatabaseJsonType = {
       ProcessedFields &
       UserLPCoinBalance & { daily_volume: Uint128String }
   >;
+  [DatabaseRpc.RandomSymbols]: { emojis: `\\x${string}` };
 };
 
 type Columns = DatabaseJsonType[TableName.GlobalStateEvents] &
@@ -381,6 +382,6 @@ type Columns = DatabaseJsonType[TableName.GlobalStateEvents] &
   DatabaseJsonType[TableName.PriceFeed] &
   DatabaseJsonType[TableName.ProcessorStatus] &
   DatabaseJsonType[DatabaseRpc.UserPools] &
-  DatabaseJsonType[DatabaseRpc.PriceFeed];
+  DatabaseJsonType[DatabaseRpc.RandomSymbols];
 
 export type AnyColumnName = keyof Columns;