281 lines
8.9 KiB
TypeScript
281 lines
8.9 KiB
TypeScript
"use client"
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import { useState, useRef, useEffect } from "react"
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import type { Track } from "@/lib/types"
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interface AudioPlayerProps {
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track: Track | null
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onClose?: () => void
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}
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export default function AudioPlayer({ track, onClose }: AudioPlayerProps) {
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const [isPlaying, setIsPlaying] = useState(false)
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const [currentTime, setCurrentTime] = useState(0)
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const [duration, setDuration] = useState(0)
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const [volume, setVolume] = useState(1)
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const [isMuted, setIsMuted] = useState(false)
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const [waveformPeaks, setWaveformPeaks] = useState<number[]>([])
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const [isLoadingWaveform, setIsLoadingWaveform] = useState(false)
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const [showVolumeSlider, setShowVolumeSlider] = useState(false)
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const audioRef = useRef<HTMLAudioElement>(null)
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const progressRef = useRef<HTMLDivElement>(null)
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// Load audio and waveform when track changes
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useEffect(() => {
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if (!track) {
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setIsPlaying(false)
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setCurrentTime(0)
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setWaveformPeaks([])
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return
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}
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setIsPlaying(false)
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setCurrentTime(0)
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loadWaveform(track.id)
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if (audioRef.current) {
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audioRef.current.load()
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}
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}, [track?.id])
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// Update current time as audio plays
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useEffect(() => {
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const audio = audioRef.current
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if (!audio) return
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const updateTime = () => setCurrentTime(audio.currentTime)
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const updateDuration = () => setDuration(audio.duration)
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const handleEnded = () => setIsPlaying(false)
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audio.addEventListener("timeupdate", updateTime)
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audio.addEventListener("loadedmetadata", updateDuration)
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audio.addEventListener("ended", handleEnded)
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return () => {
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audio.removeEventListener("timeupdate", updateTime)
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audio.removeEventListener("loadedmetadata", updateDuration)
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audio.removeEventListener("ended", handleEnded)
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}
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}, [])
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const loadWaveform = async (trackId: string) => {
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setIsLoadingWaveform(true)
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try {
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const response = await fetch(
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`${process.env.NEXT_PUBLIC_API_URL}/api/audio/waveform/${trackId}`
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)
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if (response.ok) {
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const data = await response.json()
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setWaveformPeaks(data.peaks || [])
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}
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} catch (error) {
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console.error("Failed to load waveform:", error)
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} finally {
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setIsLoadingWaveform(false)
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}
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}
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const togglePlay = () => {
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if (!audioRef.current) return
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if (isPlaying) {
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audioRef.current.pause()
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} else {
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audioRef.current.play()
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}
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setIsPlaying(!isPlaying)
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}
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const handleVolumeChange = (e: React.ChangeEvent<HTMLInputElement>) => {
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const newVolume = parseFloat(e.target.value)
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setVolume(newVolume)
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if (audioRef.current) {
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audioRef.current.volume = newVolume
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}
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if (newVolume === 0) {
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setIsMuted(true)
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} else if (isMuted) {
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setIsMuted(false)
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}
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}
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const toggleMute = () => {
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if (!audioRef.current) return
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if (isMuted) {
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audioRef.current.volume = volume
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setIsMuted(false)
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} else {
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audioRef.current.volume = 0
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setIsMuted(true)
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}
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}
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const handleWaveformClick = (e: React.MouseEvent<HTMLDivElement>) => {
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if (!audioRef.current || !progressRef.current) return
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const rect = progressRef.current.getBoundingClientRect()
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const x = e.clientX - rect.left
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const percentage = x / rect.width
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const newTime = percentage * duration
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audioRef.current.currentTime = newTime
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setCurrentTime(newTime)
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}
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const formatTime = (seconds: number) => {
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if (!isFinite(seconds)) return "0:00"
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const mins = Math.floor(seconds / 60)
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const secs = Math.floor(seconds % 60)
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return `${mins}:${secs.toString().padStart(2, "0")}`
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}
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const getVolumeIcon = () => {
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if (isMuted || volume === 0) return "🔇"
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if (volume < 0.5) return "🔉"
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return "🔊"
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}
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if (!track) {
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return null
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}
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const progress = duration > 0 ? (currentTime / duration) * 100 : 0
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return (
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<div className="bg-white border-t border-gray-200 shadow-lg" style={{ height: '80px' }}>
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{/* Hidden audio element */}
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<audio ref={audioRef} src={`${process.env.NEXT_PUBLIC_API_URL}/api/audio/stream/${track.id}`} />
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<div className="h-full flex items-center gap-3 px-4">
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{/* Play/Pause button */}
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<button
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onClick={togglePlay}
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className="w-10 h-10 flex items-center justify-center bg-orange-500 hover:bg-orange-600 rounded-full transition-colors flex-shrink-0"
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aria-label={isPlaying ? "Pause" : "Play"}
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>
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{isPlaying ? (
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<svg className="w-4 h-4 text-white" fill="currentColor" viewBox="0 0 24 24">
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<path d="M6 4h4v16H6V4zm8 0h4v16h-4V4z"/>
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</svg>
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) : (
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<svg className="w-4 h-4 text-white ml-0.5" fill="currentColor" viewBox="0 0 24 24">
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<path d="M8 5v14l11-7z"/>
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</svg>
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)}
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</button>
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{/* Track info */}
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<div className="flex-shrink-0 w-48">
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<div className="text-sm font-medium text-gray-900 truncate">
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{track.filename}
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</div>
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<div className="text-xs text-gray-500">
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{track.classification.genre.primary.split("---")[0]} • {Math.round(track.features.tempo_bpm)} BPM
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</div>
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</div>
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{/* Time */}
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<div className="text-xs text-gray-500 flex-shrink-0 w-16">
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{formatTime(currentTime)}
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</div>
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{/* Waveform */}
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<div className="flex-1 min-w-0">
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<div
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ref={progressRef}
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className="relative h-12 cursor-pointer overflow-hidden flex items-center"
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onClick={handleWaveformClick}
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>
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{isLoadingWaveform ? (
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<div className="flex items-center justify-center h-full w-full">
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<span className="text-xs text-gray-400">Loading...</span>
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</div>
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) : waveformPeaks.length > 0 ? (
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<div className="flex items-center h-full w-full" style={{ gap: '2px' }}>
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{waveformPeaks.map((peak, index) => {
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const isPlayed = (index / waveformPeaks.length) * 100 <= progress
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return (
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<div
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key={index}
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className="flex-1 flex items-center justify-center"
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style={{ minWidth: "2px", maxWidth: "3px" }}
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>
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<div
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className={`w-full rounded-full transition-colors ${
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isPlayed ? "bg-orange-500" : "bg-gray-300"
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}`}
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style={{
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height: `${Math.max(peak * 80, 2)}%`,
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}}
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/>
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</div>
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)
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})}
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</div>
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) : (
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<div className="flex items-center h-full w-full px-2">
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<div className="w-full h-1 bg-gray-200 rounded-full">
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<div
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className="h-full bg-orange-500 rounded-full transition-all"
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style={{ width: `${progress}%` }}
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/>
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</div>
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</div>
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)}
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</div>
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</div>
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{/* Time remaining */}
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<div className="text-xs text-gray-500 flex-shrink-0 w-16 text-right">
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{formatTime(duration)}
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</div>
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{/* Volume control */}
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<div
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className="flex items-center gap-2 flex-shrink-0 relative"
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onMouseEnter={() => setShowVolumeSlider(true)}
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onMouseLeave={() => setShowVolumeSlider(false)}
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>
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<button
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onClick={toggleMute}
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className="text-gray-600 hover:text-gray-900 transition-colors"
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aria-label={isMuted ? "Unmute" : "Mute"}
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>
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{getVolumeIcon()}
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</button>
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{showVolumeSlider && (
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<div className="absolute bottom-full right-0 mb-2 bg-white border border-gray-200 rounded-lg shadow-lg p-2">
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<input
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type="range"
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min="0"
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max="1"
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step="0.01"
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value={isMuted ? 0 : volume}
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onChange={handleVolumeChange}
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className="w-24 h-1 bg-gray-200 rounded-lg appearance-none cursor-pointer accent-orange-500 rotate-[-90deg] origin-center"
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style={{ width: '80px' }}
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aria-label="Volume"
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/>
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</div>
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)}
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</div>
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{/* Close button */}
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{onClose && (
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<button
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onClick={onClose}
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className="text-gray-400 hover:text-gray-600 transition-colors flex-shrink-0"
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aria-label="Close player"
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>
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<svg className="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24">
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<path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M6 18L18 6M6 6l12 12" />
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</svg>
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</button>
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)}
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</div>
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</div>
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)
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}
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