Player full fonctionnel !

waveform ok, autoplay, download

backend/src/api/routes/tracks.py

@@ -22,6 +22,9 @@ async def get_tracks(
     energy_min: Optional[float] = Query(None, ge=0, le=1),
     energy_max: Optional[float] = Query(None, ge=0, le=1),
     has_vocals: Optional[bool] = None,
+    key: Optional[str] = None,
+    instrument: Optional[str] = None,
+    tempo_range: Optional[str] = Query(None, regex="^(slow|medium|fast)$"),
     sort_by: str = Query("analyzed_at", regex="^(analyzed_at|tempo_bpm|duration_seconds|filename|energy)$"),
     sort_desc: bool = True,
     db: Session = Depends(get_db),
@@ -38,6 +41,9 @@ async def get_tracks(
         energy_min: Minimum energy
         energy_max: Maximum energy
         has_vocals: Filter by vocal presence
+        key: Filter by musical key
+        instrument: Filter by instrument
+        tempo_range: Filter by tempo range (slow: <100, medium: 100-140, fast: >140)
         sort_by: Field to sort by
         sort_desc: Sort descending
         db: Database session
@@ -45,6 +51,16 @@ async def get_tracks(
     Returns:
         Paginated list of tracks with total count
     """
+    # Convert tempo_range to bpm_min/bpm_max
+    if tempo_range:
+        if tempo_range == "slow":
+            bpm_max = 100.0 if bpm_max is None else min(bpm_max, 100.0)
+        elif tempo_range == "medium":
+            bpm_min = 100.0 if bpm_min is None else max(bpm_min, 100.0)
+            bpm_max = 140.0 if bpm_max is None else min(bpm_max, 140.0)
+        elif tempo_range == "fast":
+            bpm_min = 140.0 if bpm_min is None else max(bpm_min, 140.0)
+
     tracks, total = crud.get_tracks(
         db=db,
         skip=skip,
@@ -56,6 +72,8 @@ async def get_tracks(
         energy_min=energy_min,
         energy_max=energy_max,
         has_vocals=has_vocals,
+        key=key,
+        instrument=instrument,
         sort_by=sort_by,
         sort_desc=sort_desc,
     )

backend/src/models/crud.py

@@ -2,7 +2,7 @@
 from typing import List, Optional, Dict, Tuple
 from uuid import UUID
 from sqlalchemy.orm import Session
-from sqlalchemy import or_, and_, func
+from sqlalchemy import or_, and_, func, any_
 
 from .schema import AudioTrack
 from ..core.analyzer import AudioAnalysis
@@ -103,6 +103,8 @@ def get_tracks(
     energy_min: Optional[float] = None,
     energy_max: Optional[float] = None,
     has_vocals: Optional[bool] = None,
+    key: Optional[str] = None,
+    instrument: Optional[str] = None,
     sort_by: str = "analyzed_at",
     sort_desc: bool = True,
 ) -> Tuple[List[AudioTrack], int]:
@@ -112,13 +114,15 @@ def get_tracks(
         db: Database session
         skip: Number of records to skip
         limit: Maximum number of records to return
-        genre: Filter by genre
+        genre: Filter by genre (searches in genre_primary, supports category matching)
         mood: Filter by mood
         bpm_min: Minimum BPM
         bpm_max: Maximum BPM
         energy_min: Minimum energy (0-1)
         energy_max: Maximum energy (0-1)
         has_vocals: Filter by vocal presence
+        key: Filter by musical key
+        instrument: Filter by instrument
         sort_by: Field to sort by
         sort_desc: Sort descending if True
 
@@ -129,10 +133,12 @@ def get_tracks(
 
     # Apply filters
     if genre:
+        # Match genre category (e.g., "Pop" matches "Pop---Ballad", "Pop---Indie Pop", etc.)
         query = query.filter(
             or_(
+                AudioTrack.genre_primary.like(f"{genre}%"),
                 AudioTrack.genre_primary == genre,
-                AudioTrack.genre_secondary.contains([genre])
+                AudioTrack.genre_secondary.any(genre)
             )
         )
 
@@ -140,7 +146,7 @@ def get_tracks(
         query = query.filter(
             or_(
                 AudioTrack.mood_primary == mood,
-                AudioTrack.mood_secondary.contains([mood])
+                AudioTrack.mood_secondary.any(mood)
             )
         )
 
@@ -159,6 +165,12 @@ def get_tracks(
     if has_vocals is not None:
         query = query.filter(AudioTrack.has_vocals == has_vocals)
 
+    if key:
+        query = query.filter(AudioTrack.key == key)
+
+    if instrument:
+        query = query.filter(AudioTrack.instruments.any(instrument))
+
     # Get total count before pagination
     total = query.count()
 
@@ -213,7 +225,7 @@ def search_tracks(
         search_query = search_query.filter(
             or_(
                 AudioTrack.genre_primary == genre,
-                AudioTrack.genre_secondary.contains([genre])
+                AudioTrack.genre_secondary.any(genre)
             )
         )
 
@@ -221,7 +233,7 @@ def search_tracks(
         search_query = search_query.filter(
             or_(
                 AudioTrack.mood_primary == mood,
-                AudioTrack.mood_secondary.contains([mood])
+                AudioTrack.mood_secondary.any(mood)
             )
         )
 
@@ -265,7 +277,7 @@ def get_similar_tracks(
         query = query.filter(
             or_(
                 AudioTrack.genre_primary == ref_track.genre_primary,
-                AudioTrack.genre_secondary.contains([ref_track.genre_primary])
+                AudioTrack.genre_secondary.any(ref_track.genre_primary)
             )
         )
 
@@ -274,7 +286,7 @@ def get_similar_tracks(
         query = query.filter(
             or_(
                 AudioTrack.mood_primary == ref_track.mood_primary,
-                AudioTrack.mood_secondary.contains([ref_track.mood_primary])
+                AudioTrack.mood_secondary.any(ref_track.mood_primary)
             )
         )
 

frontend/app/page.tsx

@@ -1,13 +1,61 @@
 "use client"
 
-import { useState } from "react"
+import { useState, useMemo } from "react"
 import { useQuery } from "@tanstack/react-query"
 import { getTracks, getStats } from "@/lib/api"
-import type { FilterParams } from "@/lib/types"
+import type { FilterParams, Track } from "@/lib/types"
+import FilterPanel from "@/components/FilterPanel"
+import AudioPlayer from "@/components/AudioPlayer"
+
+// Helper function to format Discogs genre labels (e.g., "Pop---Ballad" -> ["Pop", "Ballad"])
+function formatGenre(genre: string): { category: string; subgenre: string } {
+  const parts = genre.split('---')
+  return {
+    category: parts[0] || genre,
+    subgenre: parts[1] || ''
+  }
+}
+
+// Extract unique values for filter options
+function extractFilterOptions(tracks: Track[]) {
+  const genres = new Set<string>()
+  const moods = new Set<string>()
+  const instruments = new Set<string>()
+  const keys = new Set<string>()
+
+  tracks.forEach(track => {
+    // Extract genre category (before "---")
+    const genreCategory = formatGenre(track.classification.genre.primary).category
+    genres.add(genreCategory)
+
+    // Extract primary mood
+    if (track.classification.mood.primary) {
+      moods.add(track.classification.mood.primary)
+    }
+
+    // Extract instruments
+    track.classification.instruments?.forEach(instrument => {
+      instruments.add(instrument)
+    })
+
+    // Extract key
+    if (track.features.key) {
+      keys.add(track.features.key)
+    }
+  })
+
+  return {
+    genres: Array.from(genres).sort(),
+    moods: Array.from(moods).sort(),
+    instruments: Array.from(instruments).sort(),
+    keys: Array.from(keys).sort(),
+  }
+}
 
 export default function Home() {
   const [filters, setFilters] = useState<FilterParams>({})
   const [page, setPage] = useState(0)
+  const [currentTrack, setCurrentTrack] = useState<Track | null>(null)
   const limit = 50
 
   const { data: tracksData, isLoading: isLoadingTracks } = useQuery({
@@ -20,6 +68,16 @@ export default function Home() {
     queryFn: getStats,
   })
 
+  // Extract filter options from displayed tracks
+  // For better UX, we use the current page's tracks to populate filters
+  // TODO: Add a dedicated API endpoint to get all unique filter values
+  const filterOptions = useMemo(() => {
+    if (!tracksData?.tracks || tracksData.tracks.length === 0) {
+      return { genres: [], moods: [], instruments: [], keys: [] }
+    }
+    return extractFilterOptions(tracksData.tracks)
+  }, [tracksData])
+
   return (
     <div className="min-h-screen bg-gray-50">
       {/* Header */}
@@ -31,7 +89,7 @@ export default function Home() {
       </header>
 
       {/* Main Content */}
-      <main className="max-w-7xl mx-auto px-4 sm:px-6 lg:px-8 py-8">
+      <main className="max-w-7xl mx-auto px-4 sm:px-6 lg:px-8 py-8 pb-32">
         {/* Stats */}
         {stats && (
           <div className="grid grid-cols-1 md:grid-cols-4 gap-4 mb-8">
@@ -54,6 +112,19 @@ export default function Home() {
           </div>
         )}
 
+        {/* Filter Panel */}
+        <FilterPanel
+          filters={filters}
+          onFiltersChange={(newFilters) => {
+            setFilters(newFilters)
+            setPage(0) // Reset to first page when filters change
+          }}
+          availableGenres={filterOptions.genres}
+          availableMoods={filterOptions.moods}
+          availableInstruments={filterOptions.instruments}
+          availableKeys={filterOptions.keys}
+        />
+
         {/* Tracks List */}
         <div className="bg-white rounded-lg shadow">
           <div className="p-4 border-b">
@@ -79,9 +150,21 @@ export default function Home() {
 
                       {/* Primary metadata */}
                       <div className="mt-1 flex flex-wrap gap-2">
-                        <span className="inline-flex items-center px-2 py-1 rounded text-xs bg-blue-100 text-blue-800">
-                          {track.classification.genre.primary}
-                        </span>
+                        {(() => {
+                          const genre = formatGenre(track.classification.genre.primary)
+                          return (
+                            <>
+                              <span className="inline-flex items-center px-2 py-1 rounded text-xs bg-blue-100 text-blue-800 font-semibold">
+                                {genre.category}
+                              </span>
+                              {genre.subgenre && (
+                                <span className="inline-flex items-center px-2 py-1 rounded text-xs bg-blue-50 text-blue-700">
+                                  {genre.subgenre}
+                                </span>
+                              )}
+                            </>
+                          )
+                        })()}
                         <span className="inline-flex items-center px-2 py-1 rounded text-xs bg-purple-100 text-purple-800">
                           {track.classification.mood.primary}
                         </span>
@@ -96,10 +179,25 @@ export default function Home() {
                         </span>
                       </div>
 
+                      {/* Secondary genres */}
+                      {track.classification.genre.secondary && track.classification.genre.secondary.length > 0 && (
+                        <div className="mt-2 flex flex-wrap gap-1">
+                          <span className="text-xs text-gray-400">Also:</span>
+                          {track.classification.genre.secondary.slice(0, 3).map((g, i) => {
+                            const genre = formatGenre(g)
+                            return (
+                              <span key={i} className="inline-flex items-center px-2 py-0.5 rounded text-xs bg-blue-50 text-blue-600">
+                                {genre.category}{genre.subgenre && ` • ${genre.subgenre}`}
+                              </span>
+                            )
+                          })}
+                        </div>
+                      )}
+
                       {/* Secondary moods */}
                       {track.classification.mood.secondary && track.classification.mood.secondary.length > 0 && (
                         <div className="mt-2 flex flex-wrap gap-1">
-                          <span className="text-xs text-gray-400">Also:</span>
+                          <span className="text-xs text-gray-400">Moods:</span>
                           {track.classification.mood.secondary.map((mood, i) => (
                             <span key={i} className="inline-flex items-center px-2 py-0.5 rounded text-xs bg-purple-50 text-purple-600">
                               {mood}
@@ -124,14 +222,12 @@ export default function Home() {
                       )}
                     </div>
                     <div className="ml-4 flex gap-2">
-                      <a
-                        href={`${process.env.NEXT_PUBLIC_API_URL}/api/audio/stream/${track.id}`}
-                        target="_blank"
-                        rel="noopener noreferrer"
+                      <button
+                        onClick={() => setCurrentTrack(track)}
                         className="px-3 py-1 text-sm bg-blue-600 text-white rounded hover:bg-blue-700"
                       >
-                        Play
-                      </a>
+                        {currentTrack?.id === track.id ? '▶ Playing' : 'Play'}
+                      </button>
                       <a
                         href={`${process.env.NEXT_PUBLIC_API_URL}/api/audio/download/${track.id}`}
                         download
@@ -186,6 +282,11 @@ export default function Home() {
           </ol>
         </div>
       </main>
+
+      {/* Fixed Audio Player at bottom - always visible */}
+      <div className="fixed bottom-0 left-0 right-0 z-50">
+        <AudioPlayer track={currentTrack} />
+      </div>
     </div>
   )
 }

frontend/components/AudioPlayer.tsx

@@ -0,0 +1,306 @@
+"use client"
+
+import { useState, useRef, useEffect } from "react"
+import type { Track } from "@/lib/types"
+
+interface AudioPlayerProps {
+  track: Track | null
+}
+
+export default function AudioPlayer({ track }: AudioPlayerProps) {
+  const [isPlaying, setIsPlaying] = useState(false)
+  const [currentTime, setCurrentTime] = useState(0)
+  const [duration, setDuration] = useState(0)
+  const [volume, setVolume] = useState(1)
+  const [isMuted, setIsMuted] = useState(false)
+  const [waveformPeaks, setWaveformPeaks] = useState<number[]>([])
+  const [isLoadingWaveform, setIsLoadingWaveform] = useState(false)
+
+  const audioRef = useRef<HTMLAudioElement>(null)
+  const progressRef = useRef<HTMLDivElement>(null)
+
+  // Load audio and waveform when track changes
+  useEffect(() => {
+    if (!track) {
+      setIsPlaying(false)
+      setCurrentTime(0)
+      setWaveformPeaks([])
+      return
+    }
+
+    setCurrentTime(0)
+    loadWaveform(track.id)
+
+    if (audioRef.current) {
+      audioRef.current.load()
+      // Autoplay when track loads
+      audioRef.current.play().then(() => {
+        setIsPlaying(true)
+      }).catch((error: unknown) => {
+        console.error("Autoplay failed:", error)
+        setIsPlaying(false)
+      })
+    }
+  }, [track?.id])
+
+  // Update current time as audio plays
+  useEffect(() => {
+    const audio = audioRef.current
+    if (!audio) return
+
+    const updateTime = () => setCurrentTime(audio.currentTime)
+    const updateDuration = () => {
+      if (audio.duration && isFinite(audio.duration)) {
+        setDuration(audio.duration)
+      }
+    }
+    const handleEnded = () => setIsPlaying(false)
+
+    audio.addEventListener("timeupdate", updateTime)
+    audio.addEventListener("loadedmetadata", updateDuration)
+    audio.addEventListener("durationchange", updateDuration)
+    audio.addEventListener("ended", handleEnded)
+
+    // Initialize duration if already loaded
+    if (audio.duration && isFinite(audio.duration)) {
+      setDuration(audio.duration)
+    }
+
+    return () => {
+      audio.removeEventListener("timeupdate", updateTime)
+      audio.removeEventListener("loadedmetadata", updateDuration)
+      audio.removeEventListener("durationchange", updateDuration)
+      audio.removeEventListener("ended", handleEnded)
+    }
+  }, [track?.id])
+
+  const loadWaveform = async (trackId: string) => {
+    setIsLoadingWaveform(true)
+    try {
+      const response = await fetch(
+        `${process.env.NEXT_PUBLIC_API_URL}/api/audio/waveform/${trackId}`
+      )
+      if (response.ok) {
+        const data = await response.json()
+        setWaveformPeaks(data.peaks || [])
+      }
+    } catch (error) {
+      console.error("Failed to load waveform:", error)
+    } finally {
+      setIsLoadingWaveform(false)
+    }
+  }
+
+  const togglePlay = () => {
+    if (!audioRef.current || !track) return
+
+    if (isPlaying) {
+      audioRef.current.pause()
+    } else {
+      audioRef.current.play()
+    }
+    setIsPlaying(!isPlaying)
+  }
+
+  const handleVolumeChange = (e: React.ChangeEvent<HTMLInputElement>) => {
+    const newVolume = parseFloat(e.target.value)
+    setVolume(newVolume)
+    if (audioRef.current) {
+      audioRef.current.volume = newVolume
+    }
+    if (newVolume === 0) {
+      setIsMuted(true)
+    } else if (isMuted) {
+      setIsMuted(false)
+    }
+  }
+
+  const toggleMute = () => {
+    if (!audioRef.current) return
+
+    if (isMuted) {
+      audioRef.current.volume = volume
+      setIsMuted(false)
+    } else {
+      audioRef.current.volume = 0
+      setIsMuted(true)
+    }
+  }
+
+  const handleWaveformClick = (e: React.MouseEvent<HTMLDivElement>) => {
+    if (!audioRef.current || !progressRef.current || !track) return
+
+    const rect = progressRef.current.getBoundingClientRect()
+    const x = e.clientX - rect.left
+    const percentage = x / rect.width
+    const newTime = percentage * duration
+
+    audioRef.current.currentTime = newTime
+    setCurrentTime(newTime)
+  }
+
+  const formatTime = (seconds: number) => {
+    if (!isFinite(seconds)) return "0:00"
+    const mins = Math.floor(seconds / 60)
+    const secs = Math.floor(seconds % 60)
+    return `${mins}:${secs.toString().padStart(2, "0")}`
+  }
+
+  const progress = duration > 0 ? (currentTime / duration) * 100 : 0
+
+  return (
+    <div className="bg-gray-50 border-t border-gray-300 shadow-lg" style={{ height: '80px' }}>
+      {/* Hidden audio element */}
+      {track && <audio ref={audioRef} src={`${process.env.NEXT_PUBLIC_API_URL}/api/audio/stream/${track.id}`} />}
+
+      <div className="h-full flex items-center gap-3 px-4">
+        {/* Play/Pause button */}
+        <button
+          onClick={togglePlay}
+          disabled={!track}
+          className="w-10 h-10 flex items-center justify-center bg-orange-500 hover:bg-orange-600 disabled:bg-gray-300 disabled:cursor-not-allowed rounded-full transition-colors flex-shrink-0"
+          aria-label={isPlaying ? "Pause" : "Play"}
+        >
+          {isPlaying ? (
+            <svg className="w-4 h-4 text-white" fill="currentColor" viewBox="0 0 24 24">
+              <path d="M6 4h4v16H6V4zm8 0h4v16h-4V4z"/>
+            </svg>
+          ) : (
+            <svg className="w-4 h-4 text-white ml-0.5" fill="currentColor" viewBox="0 0 24 24">
+              <path d="M8 5v14l11-7z"/>
+            </svg>
+          )}
+        </button>
+
+        {/* Track info */}
+        <div className="flex-shrink-0 w-48">
+          {track ? (
+            <>
+              <div className="text-sm font-medium text-gray-900 truncate">
+                {track.filename}
+              </div>
+              <div className="text-xs text-gray-500">
+                {track.classification.genre.primary.split("---")[0]} • {Math.round(track.features.tempo_bpm)} BPM
+              </div>
+            </>
+          ) : (
+            <div className="text-sm text-gray-400">No track selected</div>
+          )}
+        </div>
+
+        {/* Time */}
+        <div className="text-xs text-gray-500 flex-shrink-0 w-16">
+          {formatTime(currentTime)}
+        </div>
+
+        {/* Waveform */}
+        <div className="flex-1 min-w-0">
+          <div
+            ref={progressRef}
+            className="relative h-12 cursor-pointer overflow-hidden flex items-center bg-gray-100 rounded"
+            onClick={handleWaveformClick}
+          >
+            {isLoadingWaveform ? (
+              <div className="flex items-center justify-center h-full w-full">
+                <span className="text-xs text-gray-400">Loading...</span>
+              </div>
+            ) : waveformPeaks.length > 0 ? (
+              <div className="flex items-center h-full w-full gap-[1px] px-1">
+                {waveformPeaks
+                  .filter((_: number, index: number) => index % 4 === 0) // Take every 4th peak to reduce from 800 to 200
+                  .map((peak: number, index: number) => {
+                    const originalIndex = index * 4
+                    const isPlayed = (originalIndex / waveformPeaks.length) * 100 <= progress
+                    return (
+                      <div
+                        key={index}
+                        className="flex-1 flex items-center justify-center"
+                        style={{
+                          minWidth: "1px",
+                          maxWidth: "4px",
+                          height: "100%",
+                        }}
+                      >
+                        <div
+                          className={`w-full rounded-sm transition-colors ${
+                            isPlayed ? "bg-orange-500" : "bg-gray-400"
+                          }`}
+                          style={{
+                            height: `${Math.max(peak * 70, 4)}%`,
+                          }}
+                        />
+                      </div>
+                    )
+                  })}
+              </div>
+            ) : (
+              <div className="flex items-center h-full w-full px-2">
+                <div className="w-full h-1 bg-gray-300 rounded-full">
+                  <div
+                    className="h-full bg-orange-500 rounded-full transition-all"
+                    style={{ width: `${progress}%` }}
+                  />
+                </div>
+              </div>
+            )}
+          </div>
+        </div>
+
+        {/* Time remaining */}
+        <div className="text-xs text-gray-500 flex-shrink-0 w-16 text-right">
+          {formatTime(duration)}
+        </div>
+
+        {/* Volume control */}
+        <div className="flex items-center gap-2 flex-shrink-0">
+          <button
+            onClick={toggleMute}
+            className="w-8 h-8 flex items-center justify-center text-gray-600 hover:text-gray-900 transition-colors rounded hover:bg-gray-200"
+            aria-label={isMuted ? "Unmute" : "Mute"}
+          >
+            {isMuted || volume === 0 ? (
+              <svg className="w-5 h-5" fill="currentColor" viewBox="0 0 24 24">
+                <path d="M16.5 12c0-1.77-1.02-3.29-2.5-4.03v2.21l2.45 2.45c.03-.2.05-.41.05-.63zm2.5 0c0 .94-.2 1.82-.54 2.64l1.51 1.51C20.63 14.91 21 13.5 21 12c0-4.28-2.99-7.86-7-8.77v2.06c2.89.86 5 3.54 5 6.71zM4.27 3L3 4.27 7.73 9H3v6h4l5 5v-6.73l4.25 4.25c-.67.52-1.42.93-2.25 1.18v2.06c1.38-.31 2.63-.95 3.69-1.81L19.73 21 21 19.73l-9-9L4.27 3zM12 4L9.91 6.09 12 8.18V4z"/>
+              </svg>
+            ) : volume < 0.5 ? (
+              <svg className="w-5 h-5" fill="currentColor" viewBox="0 0 24 24">
+                <path d="M7 9v6h4l5 5V4l-5 5H7z"/>
+              </svg>
+            ) : (
+              <svg className="w-5 h-5" fill="currentColor" viewBox="0 0 24 24">
+                <path d="M3 9v6h4l5 5V4L7 9H3zm13.5 3c0-1.77-1.02-3.29-2.5-4.03v8.05c1.48-.73 2.5-2.25 2.5-4.02zM14 3.23v2.06c2.89.86 5 3.54 5 6.71s-2.11 5.85-5 6.71v2.06c4.01-.91 7-4.49 7-8.77s-2.99-7.86-7-8.77z"/>
+              </svg>
+            )}
+          </button>
+          <input
+            type="range"
+            min="0"
+            max="1"
+            step="0.01"
+            value={isMuted ? 0 : volume}
+            onChange={handleVolumeChange}
+            className="w-20 h-1 bg-gray-300 rounded-lg appearance-none cursor-pointer accent-orange-500"
+            style={{
+              background: `linear-gradient(to right, #f97316 0%, #f97316 ${(isMuted ? 0 : volume) * 100}%, #d1d5db ${(isMuted ? 0 : volume) * 100}%, #d1d5db 100%)`
+            }}
+            aria-label="Volume"
+          />
+        </div>
+
+        {/* Download button */}
+        {track && (
+          <a
+            href={`${process.env.NEXT_PUBLIC_API_URL}/api/audio/download/${track.id}`}
+            download
+            className="w-8 h-8 flex items-center justify-center text-gray-600 hover:text-gray-900 transition-colors rounded hover:bg-gray-200 flex-shrink-0"
+            aria-label="Download"
+          >
+            <svg className="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+              <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M4 16v1a3 3 0 003 3h10a3 3 0 003-3v-1m-4-4l-4 4m0 0l-4-4m4 4V4" />
+            </svg>
+          </a>
+        )}
+      </div>
+    </div>
+  )
+}

frontend/components/FilterPanel.tsx

@@ -0,0 +1,248 @@
+"use client"
+
+import { useState, useEffect } from "react"
+import type { FilterParams } from "@/lib/types"
+
+interface FilterPanelProps {
+  filters: FilterParams
+  onFiltersChange: (filters: FilterParams) => void
+  availableGenres: string[]
+  availableMoods: string[]
+  availableInstruments: string[]
+  availableKeys: string[]
+}
+
+export default function FilterPanel({
+  filters,
+  onFiltersChange,
+  availableGenres,
+  availableMoods,
+  availableInstruments,
+  availableKeys,
+}: FilterPanelProps) {
+  const [localFilters, setLocalFilters] = useState<FilterParams>(filters)
+
+  // Update local filters when parent changes
+  useEffect(() => {
+    setLocalFilters(filters)
+  }, [filters])
+
+  const handleFilterChange = (key: keyof FilterParams, value: any) => {
+    const newFilters = { ...localFilters, [key]: value }
+    setLocalFilters(newFilters)
+    onFiltersChange(newFilters)
+  }
+
+  const clearFilters = () => {
+    const emptyFilters: FilterParams = {}
+    setLocalFilters(emptyFilters)
+    onFiltersChange(emptyFilters)
+  }
+
+  const hasActiveFilters = Object.keys(localFilters).length > 0
+
+  return (
+    <div className="bg-white rounded-lg shadow p-4 mb-6">
+      <div className="flex justify-between items-center mb-4">
+        <h2 className="text-lg font-semibold text-gray-900">Filters</h2>
+        {hasActiveFilters && (
+          <button
+            onClick={clearFilters}
+            className="text-sm text-blue-600 hover:text-blue-800"
+          >
+            Clear all
+          </button>
+        )}
+      </div>
+
+      <div className="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-4 gap-4">
+        {/* Genre Filter */}
+        <div>
+          <label className="block text-sm font-medium text-gray-700 mb-1">
+            Genre
+          </label>
+          <select
+            value={localFilters.genre || ""}
+            onChange={(e) => handleFilterChange("genre", e.target.value || undefined)}
+            className="w-full px-3 py-2 border border-gray-300 rounded-md text-sm focus:outline-none focus:ring-2 focus:ring-blue-500"
+          >
+            <option value="">All Genres</option>
+            {availableGenres.map((genre) => (
+              <option key={genre} value={genre}>
+                {genre}
+              </option>
+            ))}
+          </select>
+        </div>
+
+        {/* Mood Filter */}
+        <div>
+          <label className="block text-sm font-medium text-gray-700 mb-1">
+            Mood
+          </label>
+          <select
+            value={localFilters.mood || ""}
+            onChange={(e) => handleFilterChange("mood", e.target.value || undefined)}
+            className="w-full px-3 py-2 border border-gray-300 rounded-md text-sm focus:outline-none focus:ring-2 focus:ring-blue-500"
+          >
+            <option value="">All Moods</option>
+            {availableMoods.map((mood) => (
+              <option key={mood} value={mood}>
+                {mood}
+              </option>
+            ))}
+          </select>
+        </div>
+
+        {/* Instrument Filter */}
+        <div>
+          <label className="block text-sm font-medium text-gray-700 mb-1">
+            Instrument
+          </label>
+          <select
+            value={localFilters.instrument || ""}
+            onChange={(e) => handleFilterChange("instrument", e.target.value || undefined)}
+            className="w-full px-3 py-2 border border-gray-300 rounded-md text-sm focus:outline-none focus:ring-2 focus:ring-blue-500"
+          >
+            <option value="">All Instruments</option>
+            {availableInstruments.map((instrument) => (
+              <option key={instrument} value={instrument}>
+                {instrument}
+              </option>
+            ))}
+          </select>
+        </div>
+
+        {/* Key Filter */}
+        <div>
+          <label className="block text-sm font-medium text-gray-700 mb-1">
+            Key
+          </label>
+          <select
+            value={localFilters.key || ""}
+            onChange={(e) => handleFilterChange("key", e.target.value || undefined)}
+            className="w-full px-3 py-2 border border-gray-300 rounded-md text-sm focus:outline-none focus:ring-2 focus:ring-blue-500"
+          >
+            <option value="">All Keys</option>
+            {availableKeys.map((key) => (
+              <option key={key} value={key}>
+                {key}
+              </option>
+            ))}
+          </select>
+        </div>
+
+        {/* Tempo Range Filter */}
+        <div>
+          <label className="block text-sm font-medium text-gray-700 mb-1">
+            Tempo
+          </label>
+          <select
+            value={localFilters.tempo_range || ""}
+            onChange={(e) => handleFilterChange("tempo_range", e.target.value || undefined)}
+            className="w-full px-3 py-2 border border-gray-300 rounded-md text-sm focus:outline-none focus:ring-2 focus:ring-blue-500"
+          >
+            <option value="">All Tempos</option>
+            <option value="slow">Slow (&lt;100 BPM)</option>
+            <option value="medium">Medium (100-140 BPM)</option>
+            <option value="fast">Fast (&gt;140 BPM)</option>
+          </select>
+        </div>
+
+        {/* Sort By */}
+        <div>
+          <label className="block text-sm font-medium text-gray-700 mb-1">
+            Sort By
+          </label>
+          <select
+            value={localFilters.sort_by || "analyzed_at"}
+            onChange={(e) => handleFilterChange("sort_by", e.target.value as any)}
+            className="w-full px-3 py-2 border border-gray-300 rounded-md text-sm focus:outline-none focus:ring-2 focus:ring-blue-500"
+          >
+            <option value="analyzed_at">Date Added</option>
+            <option value="filename">Filename</option>
+            <option value="tempo_bpm">BPM</option>
+            <option value="duration_seconds">Duration</option>
+            <option value="energy">Energy</option>
+          </select>
+        </div>
+
+        {/* Sort Order */}
+        <div>
+          <label className="block text-sm font-medium text-gray-700 mb-1">
+            Order
+          </label>
+          <select
+            value={localFilters.sort_desc ? "desc" : "asc"}
+            onChange={(e) => handleFilterChange("sort_desc", e.target.value === "desc")}
+            className="w-full px-3 py-2 border border-gray-300 rounded-md text-sm focus:outline-none focus:ring-2 focus:ring-blue-500"
+          >
+            <option value="asc">Ascending</option>
+            <option value="desc">Descending</option>
+          </select>
+        </div>
+      </div>
+
+      {/* Active Filters Display */}
+      {hasActiveFilters && (
+        <div className="mt-4 flex flex-wrap gap-2">
+          {localFilters.genre && (
+            <span className="inline-flex items-center px-2 py-1 rounded text-xs bg-blue-100 text-blue-800">
+              Genre: {localFilters.genre}
+              <button
+                onClick={() => handleFilterChange("genre", undefined)}
+                className="ml-1 hover:text-blue-900"
+              >
+                ×
+              </button>
+            </span>
+          )}
+          {localFilters.mood && (
+            <span className="inline-flex items-center px-2 py-1 rounded text-xs bg-purple-100 text-purple-800">
+              Mood: {localFilters.mood}
+              <button
+                onClick={() => handleFilterChange("mood", undefined)}
+                className="ml-1 hover:text-purple-900"
+              >
+                ×
+              </button>
+            </span>
+          )}
+          {localFilters.instrument && (
+            <span className="inline-flex items-center px-2 py-1 rounded text-xs bg-green-100 text-green-800">
+              Instrument: {localFilters.instrument}
+              <button
+                onClick={() => handleFilterChange("instrument", undefined)}
+                className="ml-1 hover:text-green-900"
+              >
+                ×
+              </button>
+            </span>
+          )}
+          {localFilters.key && (
+            <span className="inline-flex items-center px-2 py-1 rounded text-xs bg-yellow-100 text-yellow-800">
+              Key: {localFilters.key}
+              <button
+                onClick={() => handleFilterChange("key", undefined)}
+                className="ml-1 hover:text-yellow-900"
+              >
+                ×
+              </button>
+            </span>
+          )}
+          {localFilters.tempo_range && (
+            <span className="inline-flex items-center px-2 py-1 rounded text-xs bg-orange-100 text-orange-800">
+              Tempo: {localFilters.tempo_range}
+              <button
+                onClick={() => handleFilterChange("tempo_range", undefined)}
+                className="ml-1 hover:text-orange-900"
+              >
+                ×
+              </button>
+            </span>
+          )}
+        </div>
+      )}
+    </div>
+  )
+}

frontend/lib/types.ts

@@ -58,6 +58,9 @@ export interface FilterParams {
   energy_min?: number
   energy_max?: number
   has_vocals?: boolean
+  key?: string
+  instrument?: string
+  tempo_range?: 'slow' | 'medium' | 'fast' // Lent (<100), Moyen (100-140), Rapide (>140)
   sort_by?: 'analyzed_at' | 'tempo_bpm' | 'duration_seconds' | 'filename' | 'energy'
   sort_desc?: boolean
 }