feat: optimize CPU and memory usage

Part-of: <https://dev.funkwhale.audio/funkwhale/funkwhale/-/merge_requests/2346>

front/package.json

@@ -58,7 +58,7 @@
   },
   "devDependencies": {
     "@intlify/eslint-plugin-vue-i18n": "2.0.0",
-    "@intlify/vite-plugin-vue-i18n": "6.0.3",
+    "@intlify/unplugin-vue-i18n": "^0.8.1",
     "@types/diff": "5.0.2",
     "@types/dompurify": "2.4.0",
     "@types/howler": "2.2.7",
@@ -73,6 +73,7 @@
     "@vitejs/plugin-vue": "4.0.0",
     "@vitest/coverage-c8": "0.25.8",
     "@vue/compiler-sfc": "3.2.45",
+    "@vue/devtools": "^6.5.0",
     "@vue/eslint-config-standard": "8.0.1",
     "@vue/eslint-config-typescript": "11.0.2",
     "@vue/test-utils": "2.2.7",

front/src/api/player.ts

@@ -11,8 +11,8 @@ export interface SoundSource {
 }
 
 export interface Sound {
-  preload(): void | Promise<void>
-  dispose(): void
+  preload(): Promise<void>
+  dispose(): Promise<void>
 
   readonly audioNode: IAudioNode<IAudioContext>
   readonly isErrored: Ref<boolean>
@@ -23,11 +23,11 @@ export interface Sound {
   readonly buffered: number
   looping: boolean
 
-  pause(): void | Promise<void>
-  play(): void | Promise<void>
+  pause(): Promise<void>
+  play(): Promise<void>
 
-  seekTo(seconds: number): void | Promise<void>
-  seekBy(seconds: number): void | Promise<void>
+  seekTo(seconds: number): Promise<void>
+  seekBy(seconds: number): Promise<void>
 
   onSoundLoop: EventHookOn<Sound>
   onSoundEnd: EventHookOn<Sound>
@@ -95,19 +95,22 @@ export class HTMLSound implements Sound {
       this.isLoaded.value = this.#audio.readyState >= 2
     })
 
-    useEventListener(this.#audio, 'error', () => {
+    useEventListener(this.#audio, 'error', (err) => {
+      console.error('>> AUDIO ERRORED', err, this.__track?.title)
       this.isErrored.value = true
       this.isLoaded.value = true
     })
   }
 
-  preload () {
+  async preload () {
+    this.isErrored.value = false
     console.log('CALLING PRELOAD ON', this.__track?.title)
     this.#audio.load()
   }
 
-  dispose () {
+  async dispose () {
     this.audioNode.disconnect()
+    this.#audio.pause()
 
     // Cancel any request downloading the source
     this.#audio.src = ''

front/src/components/Queue.vue

@@ -2,7 +2,7 @@
 import type { QueueItemSource } from '~/types'
 
 import { whenever, watchDebounced, useCurrentElement, useScrollLock, useFullscreen, useIdle, refAutoReset, useStorage } from '@vueuse/core'
-import { nextTick, ref, computed, watchEffect, onMounted, defineAsyncComponent } from 'vue'
+import { nextTick, ref, computed, watchEffect, watch, defineAsyncComponent } from 'vue'
 import { useFocusTrap } from '@vueuse/integrations/useFocusTrap'
 import { useRouter } from 'vue-router'
 import { useI18n } from 'vue-i18n'
@@ -42,7 +42,7 @@ const {
   dequeue,
   playTrack,
   reorder,
-  endsIn: timeLeft,
+  endsIn,
   clear
 } = useQueue()
 
@@ -93,16 +93,6 @@ const scrollToCurrent = (behavior: ScrollBehavior = 'smooth') => {
 
 watchDebounced(currentTrack, () => scrollToCurrent(), { debounce: 100 })
 
-const scrollLoop = () => {
-  const visible = [...(list.value?.scroller.$_views.values() ?? [])].map(item => item.nr.index)
-  if (!visible.includes(currentIndex.value)) {
-    list.value?.scrollToIndex(currentIndex.value)
-    requestAnimationFrame(scrollLoop)
-  }
-}
-
-onMounted(scrollLoop)
-
 whenever(
   () => queue.value.length === 0,
   () => store.commit('ui/queueFocused', null),
@@ -118,6 +108,13 @@ const touchProgress = (event: MouseEvent) => {
   seekTo(time)
 }
 
+const animated = ref(false)
+watch(currentTrack, async track => {
+  animated.value = false
+  await nextTick()
+  animated.value = true
+})
+
 const play = async (index: number) => {
   isPlaying.value = true
   return playTrack(index)
@@ -358,8 +355,13 @@ const coverType = useStorage('queue:cover-type', CoverType.COVER_ART)
                   :style="{ 'transform': `translateX(${bufferProgress - 100}%)` }"
                 />
                 <div
-                  class="position bar"
-                  :style="{ 'transform': `translateX(calc(${progress}% - 100%)` }"
+                  :class="['position bar', { animated }]"
+                  :style="{
+                    animationDuration: duration + 's',
+                    animationPlayState: isPlaying
+                      ? 'running'
+                      : 'paused'
+                  }"
                 />
               </div>
             </div>
@@ -416,12 +418,11 @@ const coverType = useStorage('queue:cover-type', CoverType.COVER_ART)
               <div class="sub header">
                 <div>
                   {{ $t('components.Queue.meta.queuePosition', {index: currentIndex +1, length: queue.length}) }}
-                  <template v-if="!$store.state.radios.running">
-                    <span class="middle ellipses symbol" />
-                    <span :title="labels.duration">
-                      {{ timeLeft }}
-                    </span>
-                  </template>
+                  <span class="middle pipe symbol" />
+                  {{ $t('components.Queue.meta.end') }}
+                  <span :title="labels.duration">
+                    {{ endsIn }}
+                  </span>
                 </div>
               </div>
             </div>
@@ -434,8 +435,7 @@ const coverType = useStorage('queue:cover-type', CoverType.COVER_ART)
           :component="QueueItem"
           :size="50"
           @reorder="reorderTracks"
-          @visible="scrollToCurrent('auto')"
-          @hidden="scrollLoop"
+          @visible="list.scrollToIndex(currentIndex, 'center')"
         >
           <template #default="{ index, item, classlist }">
             <queue-item

front/src/components/audio/Player.vue

@@ -150,7 +150,6 @@ const hideArtist = () => {
         />
         <div
           class="position bar"
-          :style="{ 'transform': `translateX(${progress - 100}%)` }"
         />
         <div
           class="seek bar"

front/src/components/audio/track/Row.vue

@@ -2,7 +2,7 @@
 import type { Track, Artist, Album, Playlist, Library, Channel, Actor } from '~/types'
 import type { PlayOptionsProps } from '~/composables/audio/usePlayOptions'
 
-import { computed } from 'vue'
+import { computed, ref } from 'vue'
 
 import usePlayOptions from '~/composables/audio/usePlayOptions'
 
@@ -23,8 +23,6 @@ interface Props extends PlayOptionsProps {
   showPosition?: boolean
   displayActions?: boolean
 
-  hover: boolean
-
   // TODO(wvffle): Remove after https://github.com/vuejs/core/pull/4512 is merged
   tracks: Track[]
   isPlayable?: boolean
@@ -57,12 +55,15 @@ const { isPlaying, loading } = usePlayer()
 const { currentTrack } = useQueue()
 
 const active = computed(() => props.track.id === currentTrack.value?.id && props.track.position === currentTrack.value?.position)
+const hover = ref(false)
 </script>
 
 <template>
   <div
     :class="[{ active }, 'track-row row']"
     @dblclick="activateTrack(track, index)"
+    @mousemove="hover = true"
+    @mouseout="hover = false"
   >
     <div
       class="actions one wide left floated column"

front/src/components/audio/track/Table.vue

@@ -1,7 +1,6 @@
 <script setup lang="ts">
 import type { Track } from '~/types'
 
-import { useElementByPoint, useMouse } from '@vueuse/core'
 import { useI18n } from 'vue-i18n'
 import { clone, uniqBy } from 'lodash-es'
 import { ref, computed } from 'vue'
@@ -71,15 +70,6 @@ const props = withDefaults(defineProps<Props>(), {
   unique: true
 })
 
-const { x, y } = useMouse({ type: 'client' })
-const { element } = useElementByPoint({ x, y })
-const hover = computed(() => {
-  const row = element.value?.closest('.track-row') ?? null
-  return row && allTracks.value.find(track => {
-    return `${track.id}` === row.getAttribute('data-track-id') && `${track.position}` === row.getAttribute('data-track-position')
-  })
-})
-
 const currentPage = ref(props.page)
 const totalTracks = ref(props.total)
 const fetchDataUrl = ref(props.nextUrl)
@@ -235,8 +225,6 @@ const updatePage = (page: number) => {
         <track-row
           v-for="(track, index) in allTracks"
           :key="`${track.id} ${track.position}`"
-          :data-track-id="track.id"
-          :data-track-position="track.position"
           :track="track"
           :index="index"
           :tracks="allTracks"
@@ -247,7 +235,6 @@ const updatePage = (page: number) => {
           :display-actions="displayActions"
           :show-duration="showDuration"
           :is-podcast="isPodcast"
-          :hover="hover === track"
         />
       </div>
       <div

front/src/components/vui/list/VirtualList.vue

@@ -1,6 +1,6 @@
 <script setup lang="ts">
 import { useMouse, useCurrentElement, useRafFn, useElementByPoint } from '@vueuse/core'
-import { ref, watchEffect, reactive } from 'vue'
+import { ref, watchEffect, reactive, watch } from 'vue'
 
 // @ts-expect-error no typings
 import { RecycleScroller } from 'vue-virtual-scroller'
@@ -9,7 +9,6 @@ import 'vue-virtual-scroller/dist/vue-virtual-scroller.css'
 interface Events {
   (e: 'reorder', from: number, to: number): void
   (e: 'visible'): void
-  (e: 'hidden'): void
 }
 
 interface Props {
@@ -97,7 +96,19 @@ const cleanup = () => {
 const scrollDirection = ref()
 const containerSize = reactive({ bottom: 0, top: 0 })
 const { x, y: screenY } = useMouse({ type: 'client' })
-const { element: hoveredElement } = useElementByPoint({ x, y: screenY })
+
+const { element: hoveredElement, pause: dragTrackPause, resume: dragTrackStart } = useElementByPoint({ x, y: screenY })
+dragTrackPause()
+
+// Disable element lookup
+watch(draggedItem, (dragging) => {
+  if (dragging) {
+    dragTrackStart()
+    return
+  }
+
+  dragTrackPause()
+}, { immediate: true })
 
 // Find current index and position on both desktop and mobile devices
 watchEffect(() => {
@@ -138,23 +149,35 @@ const resize = () => {
   containerSize.bottom = element.offsetHeight + containerSize.top
 }
 
+// Scrolling when item held near top/bottom border
 let lastDate = +new Date()
 const { resume, pause } = useRafFn(() => {
   const now = +new Date()
-  const delta = now - lastDate
   const direction = scrollDirection.value
 
   if (direction && el.value?.children[0] && !isTouch.value) {
-    el.value.children[0].scrollTop += 200 / delta * (direction === 'up' ? -1 : 1)
+    el.value.children[0].scrollTop += 200 / (now - lastDate) * (direction === 'up' ? -1 : 1)
   }
 
   lastDate = now
 }, { immediate: false })
 
 const virtualList = ref()
+const scrollToIndex = (index: number, block: 'center' | 'start' | 'end' = 'start') => {
+  if (!virtualList.value) return
+
+  const position = block === 'start'
+    ? index * props.size
+    : block === 'end'
+      ? (index + 1) * props.size - virtualList.value.$el.offsetHeight
+      : (index + 0.5) * props.size - virtualList.value.$el.offsetHeight / 2
+
+  virtualList.value.scrollToPosition(position)
+}
+
 defineExpose({
-  scrollToIndex: (index: number) => virtualList.value?.scrollToItem(index),
   scroller: virtualList,
+  scrollToIndex,
   cleanup
 })
 </script>
@@ -173,7 +196,6 @@ defineExpose({
       @touchmove="onTouchmove"
       @resize="resize"
       @visible="emit('visible')"
-      @hidden="emit('hidden')"
     >
       <template #before>
         <slot name="header" />

front/src/composables/audio/player.ts

@@ -168,15 +168,6 @@ export const usePlayer = createGlobalState(() => {
 
   // Progress
   const progress = ref(0)
-  useRafFn(() => {
-    const sound = currentSound.value
-    if (!sound) {
-      progress.value = 0
-      return
-    }
-
-    progress.value = sound.currentTime / sound.duration * 100
-  })
 
   // Loading
   const loading = computed(() => {

front/src/composables/audio/queue.ts

@@ -296,7 +296,6 @@ export const useQueue = createGlobalState(() => {
   }
 
   // Ends in
-  const now = useNow()
   const endsIn = useTimeAgo(computed(() => {
     const seconds = sum(
       queue.value
@@ -304,10 +303,12 @@ export const useQueue = createGlobalState(() => {
         .map((track) => track.sources[0]?.duration ?? 0)
     )
 
-    const date = new Date(now.value)
+    const date = new Date()
     date.setSeconds(date.getSeconds() + seconds)
     return date
-  }))
+  }), {
+    updateInterval: 0
+  })
 
   // Clear
   const clearRadio = ref(false)

front/src/composables/audio/tracks.ts

@@ -20,7 +20,7 @@ const AUDIO_ELEMENT = document.createElement('audio')
 
 const soundPromises = new Map<number, Promise<Sound>>()
 const soundCache = useLRUCache<number, Sound>({
-  max: 10,
+  max: 3,
   dispose: (sound) => sound.dispose()
 })
 

front/src/locales/en_US.json

@@ -192,7 +192,8 @@
         "queuePosition": "Track {index} of {length}",
         "startTime": "00:00",
         "unknownArtist": "Unknown Artist",
-        "unknownAlbum": "Unknown Album"
+        "unknownAlbum": "Unknown Album",
+        "end": "End"
       }
     },
     "RemoteSearchForm": {

front/src/main.ts

@@ -2,6 +2,7 @@ import type { InitModule } from '~/types'
 
 import store, { key } from '~/store'
 import router from '~/router'
+import devtools from '@vue/devtools'
 
 import { createApp, defineAsyncComponent, h } from 'vue'
 
@@ -15,6 +16,10 @@ import '~/api'
 // NOTE: Set the theme as fast as possible
 useTheme()
 
+if (import.meta.env.MODE === 'development') {
+  devtools.connect(/* host, port */)
+}
+
 const logger = useLogger()
 logger.info('Loading environment:', import.meta.env.MODE)
 logger.debug('Environment variables:', import.meta.env)
@@ -34,6 +39,8 @@ const app = createApp({
   }
 })
 
+app.config.performance = false
+
 app.use(router)
 app.use(store, key)
 

front/src/style/components/_queue.scss

@@ -171,6 +171,18 @@
   .ui.progress:not(.indeterminate)
     .bar.position:not(.buffer) {
     background: var(--vibrant-color);
+    will-change: transform;
+    
+    
+    &.animated {
+      @keyframes progress {
+        0% { transform: translate3d(-100%, 0, 0) }
+        100% { transform: translate3d(0, 0, 0) }
+      }
+      
+      animation-name: progress;
+      animation-timing-function: linear;
+    }
   }
 
   .indicating.progress .bar {

front/vite.config.ts

@@ -1,7 +1,6 @@
 import { defineConfig, type PluginOption } from 'vite'
 import Vue from '@vitejs/plugin-vue'
-import Inspector from 'vite-plugin-vue-inspector'
-import VueI18n from '@intlify/vite-plugin-vue-i18n'
+import VueI18n from '@intlify/unplugin-vue-i18n/vite'
 import { VitePWA } from 'vite-plugin-pwa'
 import { resolve } from 'path'
 import { visualizer } from 'rollup-plugin-visualizer'