feature: nftunes radio loads 1st song via cache for fast playback and other ux and perf fixes

package.json

@@ -1,7 +1,7 @@
 {
   "name": "explorer-dapp",
   "description": "Itheum Explorer is a DApp for the public to explore and visualize data within the Itheum protocol",
-  "version": "1.21.0",
+  "version": "1.21.1",
   "author": "Itheum",
   "license": "GPL-3.0-or-later",
   "dependencies": {

src/components/AudioPlayer/RadioPlayer.tsx

@@ -6,6 +6,7 @@ import "./AudioPlayer.css";
 import DEFAULT_SONG_IMAGE from "assets/img/audio-player-image.png";
 import DEFAULT_SONG_LIGHT_IMAGE from "assets/img/audio-player-light-image.png";
 import { toastError } from "libs/utils";
+import { useAppsStore } from "store/apps";
 import { Button } from "../../libComponents/Button";
 
 type RadioPlayerProps = {
@@ -27,6 +28,7 @@ export const RadioPlayer = (props: RadioPlayerProps) => {
   const [duration, setDuration] = useState("00:00");
   const [isLoaded, setIsLoaded] = useState(false);
   const [songSource, setSongSource] = useState<{ [key: number]: string }>({}); // map to keep the already fetched songs
+  const appsStore = useAppsStore();
 
   useEffect(() => {
     audio.addEventListener("ended", function () {
@@ -106,13 +108,40 @@ export const RadioPlayer = (props: RadioPlayerProps) => {
         [index]: "Fetching", // update the value of specific key
       }));
 
-      const blob = await fetch(songs[index - 1].stream).then((r) => r.blob());
-      const blobUrl = URL.createObjectURL(blob);
+      let errMsg = null;
+      let blobUrl = "";
+
+      try {
+        const trackIndex = index - 1;
+        const nfTunesRadioFirstTrackCachedBlob = appsStore.nfTunesRadioFirstTrackCachedBlob;
+
+        // if we have cached the first song blob when Explorer loaded, then just load that from the cache direct to start the playback fast
+        if (trackIndex === 0 && nfTunesRadioFirstTrackCachedBlob && nfTunesRadioFirstTrackCachedBlob.trim() !== "") {
+          blobUrl = nfTunesRadioFirstTrackCachedBlob;
+          console.log(`Track ${trackIndex} Loaded from cache`);
+          console.log("nfTunesRadioFirstTrackCachedBlob ", nfTunesRadioFirstTrackCachedBlob);
+        } else {
+          console.log(`Track ${trackIndex} Loading on-Demand`);
+          const blob = await fetch(songs[trackIndex].stream).then((r) => r.blob());
+          blobUrl = URL.createObjectURL(blob);
+        }
+
+        console.log("blobUrl ", blobUrl);
+      } catch (error: any) {
+        errMsg = error.toString();
+      }
 
-      setSongSource((prevState) => ({
-        ...prevState, // keep all other key-value pairs
-        [index]: blobUrl, // update the value of specific key
-      }));
+      if (!errMsg) {
+        setSongSource((prevState) => ({
+          ...prevState, // keep all other key-value pairs
+          [index]: blobUrl, // update the value of specific key
+        }));
+      } else {
+        setSongSource((prevState) => ({
+          ...prevState,
+          [index]: "Error: " + errMsg,
+        }));
+      }
     } catch (err) {
       setSongSource((prevState) => ({
         ...prevState,

src/components/Layout/Navbar.tsx

@@ -1,4 +1,4 @@
-import React, { useState } from "react";
+import React, { useState, useEffect } from "react";
 import { useWallet } from "@solana/wallet-adapter-react";
 import { Home, Menu, Store, Wallet, Gamepad2, AreaChart } from "lucide-react";
 import { Link } from "react-router-dom";
@@ -7,13 +7,7 @@ import logo192 from "assets/img/logo192.png";
 import { SolBitzDropdown } from "components/BitzDropdown/SolBitzDropdown";
 import { CopyAddress } from "components/CopyAddress";
 import { useGetAccount, useGetIsLoggedIn } from "hooks";
-import { cn, sleep } from "libs/utils";
-import { APP_MAPPINGS } from "libs/utils/constant";
-import { returnRoute } from "pages/Home";
-import { routeNames } from "routes";
-import { useLocalStorageStore } from "store/LocalStorageStore.ts";
-import { SwitchButton } from "./SwitchButton";
-import { Button } from "../../libComponents/Button";
+import { Button } from "libComponents/Button";
 import {
   DropdownMenu,
   DropdownMenuContent,
@@ -22,16 +16,24 @@ import {
   DropdownMenuLabel,
   DropdownMenuSeparator,
   DropdownMenuTrigger,
-} from "../../libComponents/DropdownMenu";
+} from "libComponents/DropdownMenu";
 import {
   NavigationMenu,
   NavigationMenuContent,
   NavigationMenuItem,
   NavigationMenuList,
   NavigationMenuTrigger,
   navigationMenuTriggerStyle,
-} from "../../libComponents/NavigationMenu";
-import { useAccountStore } from "../../store/account";
+} from "libComponents/NavigationMenu";
+import { cn, sleep } from "libs/utils";
+import { APP_MAPPINGS } from "libs/utils/constant";
+import { returnRoute } from "pages/Home";
+import { routeNames } from "routes";
+import { useAccountStore } from "store/account";
+import { useAppsStore } from "store/apps";
+import { useLocalStorageStore } from "store/LocalStorageStore.ts";
+import { SwitchButton } from "./SwitchButton";
+import { getNFTuneFirstTrackBlobData } from "../../pages/AppMarketplace/NFTunes";
 import { MvxBitzDropdown } from "../BitzDropdown/MvxBitzDropdown";
 import { PlayBitzModal } from "../PlayBitzModal/PlayBitzModal";
 
@@ -43,8 +45,29 @@ export const Navbar = () => {
   const { address: addressMvx } = useGetAccount();
   const bitzBalance = useAccountStore((state: any) => state.bitzBalance);
   const setDefaultChain = useLocalStorageStore((state) => state.setDefaultChain);
-
   const [showPlayBitzModal, setShowPlayBitzModal] = useState<boolean>(false);
+  const appsStore = useAppsStore();
+  const updateNfTunesRadioFirstTrackCachedBlob = appsStore.updateNfTunesRadioFirstTrackCachedBlob;
+
+  useEffect(() => {
+    // lets get the 1st song blob for NFTunes Radio, so we can store in the "browser" cache for fast playback
+    // ... we do it here as the NavBar loads first always
+    async function cacheFirstNFTuneRadioTrack() {
+      const nfTunesRadioFirstTrackCachedBlob = appsStore.nfTunesRadioFirstTrackCachedBlob;
+
+      if (nfTunesRadioFirstTrackCachedBlob === "") {
+        const trackBlobUrl = await getNFTuneFirstTrackBlobData();
+
+        if (trackBlobUrl !== "") {
+          console.log("NFTune Radio 1st Song Data Cached...");
+        }
+
+        updateNfTunesRadioFirstTrackCachedBlob(trackBlobUrl || "");
+      }
+    }
+
+    cacheFirstNFTuneRadioTrack();
+  }, []);
 
   return (
     <div className="flex flex-row justify-between items-center xl:mx-[7.5rem] md:mx-[4rem] h-20">

src/pages/AppMarketplace/NFPodcast/index.tsx

@@ -5,7 +5,15 @@ import { motion } from "framer-motion";
 import { Music, Music2 } from "lucide-react";
 import { Link } from "react-router-dom";
 import { NF_PODCAST_TOKENS } from "appsConfig";
+import musicNoteBlack from "assets/img/nf-tunes/music-note-black.png";
+import musicNote from "assets/img/nf-tunes/music-note-white.png";
 import disk from "assets/img/nf-tunes-logo-disk.png";
+import stick from "assets/img/nf-tunes-logo-stick.png";
+import backCube from "assets/img/zstorage/back.png";
+import cubes from "assets/img/zstorage/cubes.png";
+import dataLines from "assets/img/zstorage/data-lines.png";
+import frontCube from "assets/img/zstorage/front.png";
+import vault from "assets/img/zstorage/vault-dots.png";
 import { MvxDataNftCard, Loader } from "components";
 import { AudioPlayer } from "components/AudioPlayer/AudioPlayer";
 import { HeaderComponent } from "components/Layout/HeaderComponent";
@@ -15,16 +23,7 @@ import { useGetPendingTransactions } from "hooks";
 import { Button } from "libComponents/Button";
 import { BlobDataType, ExtendedViewDataReturnType } from "libs/types";
 import { decodeNativeAuthToken, getApiDataMarshal, toastError } from "libs/utils";
-import { scrollToSection } from "libs/utils";
 import { useNftsStore } from "store/nfts";
-import musicNoteBlack from "../../../assets/img/nf-tunes/music-note-black.png";
-import musicNote from "../../../assets/img/nf-tunes/music-note-white.png";
-import stick from "../../../assets/img/nf-tunes-logo-stick.png";
-import backCube from "../../../assets/img/zstorage/back.png";
-import cubes from "../../../assets/img/zstorage/cubes.png";
-import dataLines from "../../../assets/img/zstorage/data-lines.png";
-import frontCube from "../../../assets/img/zstorage/front.png";
-import vault from "../../../assets/img/zstorage/vault-dots.png";
 
 export const NFPodcast = () => {
   const { theme } = useTheme();
@@ -153,30 +152,23 @@ export const NFPodcast = () => {
         <div className="flex flex-col justify-center items-center xl:items-start h-[100vsh] w-[100%] pt-8 xl:pt-16 mb-16 xl:mb-32  pl-4  ">
           <div className="flex flex-col w-full xl:w-[60%] gap-6">
             <div className="flex-row flex items-center">
-              <span className="text-5xl xl:text-[8rem] text-primary">NF-Podcast</span>
+              <span className="text-4xl xl:text-[6rem] text-primary">NF-Podcast</span>
               <img className="max-h-[30%] mb-6" src={currentTheme === "dark" ? musicNote : musicNoteBlack} />
             </div>
             <div className="flex flex-row justify-between">
-              <span className="text-base md:text-2xl text-primary text-light w-[70%]">
+              <span className="text-base md:text-xl text-primary text-light w-[70%]">
                 Empowering content creators to engage with their communities and discover alternative avenues for content distribution
               </span>
             </div>
-
-            <button
-              onClick={() => scrollToSection("data-nfts")}
-              className="hover:scale-110 transition duration-700 text-sm md:text-xl p-2 md:p-4 rounded-lg  max-w-[50%] xl:max-w-[35%] text-white
-           bg-gradient-to-br from-[#737373] from-5% via-[#A76262] via-40% to-[#5D3899] to-100%">
-              Visualize NF-Podcasts
-            </button>
           </div>
 
           <div className="flex flex-col xl:flex-row  w-full justify-between items-center h-full">
             <div className="p-6 pl-32">
               <Music className="md:scale-[2] mb-8 ml-[14%] text-primary" />
             </div>
 
-            <div className="relative min-h-[10rem] h-full w-full xl:-mt-[15%] -z-10">
-              <div className="absolute w-[60%] max-w-[500px]  -mt-[10%] left-[20%] xl:left-[35%] h-[300px] xl:h-[500px] bg-gradient-to-br from-[#737373] from-20% via-[#A76262] via-40% to-[#5D3899] to-80% rounded-full filter blur-2xl opacity-25   "></div>
+            <div className="relative min-h-[10rem] h-full w-full xl:-mt-[5%] -z-10">
+              <div className="absolute w-[60%] max-w-[500px] -mt-[10%] left-[20%] xl:left-[35%] h-[300px] xl:h-[500px] bg-gradient-to-br from-[#737373] from-20% via-[#A76262] via-40% to-[#5D3899] to-80% rounded-full filter blur-2xl opacity-25   "></div>
               <img className="animate-spin-slow w-[60%] left-[20%] xl:left-[40%] max-w-[350px] absolute" src={disk} alt="disk" />
               <img className="absolute left-[60%] lg:left-[50%] xl:left-[70%] top-[-30px] xl:top-[-50px] w-[30%] max-w-[200px]" src={stick} alt="stick" />
             </div>