feat: refactoring

furumi-node-player/client/src/components/QueueList.tsx

@@ -0,0 +1,144 @@
+import { useEffect, useRef, useState } from 'react'
+
+export type QueueItem = {
+  slug: string
+  title: string
+  artist: string
+  album_slug: string | null
+  duration: number | null
+}
+
+type QueueListProps = {
+  apiRoot: string
+  queue: QueueItem[]
+  order: number[]
+  playingOrigIdx: number
+  scrollSignal: number
+  onPlay: (origIdx: number) => void
+  onRemove: (origIdx: number) => void
+  onMove: (fromPos: number, toPos: number) => void
+}
+
+function pad(n: number) {
+  return String(n).padStart(2, '0')
+}
+
+function fmt(secs: number) {
+  if (!secs || Number.isNaN(secs)) return '0:00'
+  const s = Math.floor(secs)
+  const m = Math.floor(s / 60)
+  const h = Math.floor(m / 60)
+  if (h > 0) return `${h}:${pad(m % 60)}:${pad(s % 60)}`
+  return `${m}:${pad(s % 60)}`
+}
+
+function Cover({ src }: { src: string }) {
+  const [errored, setErrored] = useState(false)
+  useEffect(() => {
+    setErrored(false)
+  }, [src])
+
+  if (errored) return <>&#127925;</>
+  return <img src={src} alt="" onError={() => setErrored(true)} />
+}
+
+export function QueueList({
+  apiRoot,
+  queue,
+  order,
+  playingOrigIdx,
+  scrollSignal,
+  onPlay,
+  onRemove,
+  onMove,
+}: QueueListProps) {
+  const playingRef = useRef<HTMLDivElement | null>(null)
+  const [draggingPos, setDraggingPos] = useState<number | null>(null)
+  const [dragOverPos, setDragOverPos] = useState<number | null>(null)
+
+  useEffect(() => {
+    if (playingRef.current) {
+      playingRef.current.scrollIntoView({ behavior: 'smooth', block: 'nearest' })
+    }
+  }, [playingOrigIdx, scrollSignal])
+
+  if (!queue.length) {
+    return (
+      <div className="queue-empty">
+        <div className="empty-icon">&#127925;</div>
+        <div>Select an album to start</div>
+      </div>
+    )
+  }
+
+  return (
+    <>
+      {order.map((origIdx, pos) => {
+        const t = queue[origIdx]
+        if (!t) return null
+
+        const isPlaying = origIdx === playingOrigIdx
+        const coverSrc = t.album_slug ? `${apiRoot}/tracks/${t.slug}/cover` : ''
+        const dur = t.duration ? fmt(t.duration) : ''
+        const isDragging = draggingPos === pos
+        const isDragOver = dragOverPos === pos
+
+        return (
+          <div
+            key={`${t.slug}:${pos}`}
+            ref={isPlaying ? playingRef : null}
+            className={`queue-item${isPlaying ? ' playing' : ''}${isDragging ? ' dragging' : ''}${
+              isDragOver ? ' drag-over' : ''
+            }`}
+            draggable
+            onClick={() => onPlay(origIdx)}
+            onDragStart={(e) => {
+              setDraggingPos(pos)
+              e.dataTransfer?.setData('text/plain', String(pos))
+            }}
+            onDragEnd={() => {
+              setDraggingPos(null)
+              setDragOverPos(null)
+            }}
+            onDragOver={(e) => {
+              e.preventDefault()
+            }}
+            onDragEnter={() => {
+              setDragOverPos(pos)
+            }}
+            onDragLeave={() => {
+              setDragOverPos((cur) => (cur === pos ? null : cur))
+            }}
+            onDrop={(e) => {
+              e.preventDefault()
+              setDragOverPos(null)
+              const from = parseInt(e.dataTransfer?.getData('text/plain') ?? '', 10)
+              if (!Number.isNaN(from)) onMove(from, pos)
+              setDraggingPos(null)
+            }}
+          >
+            <span className="qi-index">{isPlaying ? '' : pos + 1}</span>
+            <div className="qi-cover">
+              {coverSrc ? <Cover src={coverSrc} /> : <>&#127925;</>}
+            </div>
+            <div className="qi-info">
+              <div className="qi-title">{t.title}</div>
+              <div className="qi-artist">{t.artist || ''}</div>
+            </div>
+            <span className="qi-dur">{dur}</span>
+            <button
+              className="qi-remove"
+              onClick={(e) => {
+                e.stopPropagation()
+                onRemove(origIdx)
+              }}
+            >
+              &#10005;
+            </button>
+          </div>
+        )
+      })}
+    </>
+  )
+}
+