server change

client/src/components/AudioVisualizer.tsx

@@ -0,0 +1,93 @@
+import audioFile from "../assets/female-female-mixture.wav";
+import { useEffect, useRef, useState } from "react";
+
+const AudioVisualizer: React.FC = () => {
+  const audioRef = useRef<HTMLAudioElement | null>(null);
+  const canvasRef = useRef<HTMLCanvasElement | null>(null);
+  const audioContextRef = useRef<AudioContext | null>(null);
+  const sourceRef = useRef<MediaElementAudioSourceNode | null>(null);
+  const analyserRef = useRef<AnalyserNode | null>(null);
+  const [isPlaying, setIsPlaying] = useState<boolean>(false);
+  const [audioSrc, setAudioSrc] = useState<string>("");
+
+  useEffect(() => {
+    setAudioSrc(audioFile);
+  }, []);
+
+  useEffect(() => {
+    if (!audioRef.current || !canvasRef.current) return;
+
+    if (!audioContextRef.current) {
+      audioContextRef.current = new (window.AudioContext || window.AudioContext)();
+    }
+    const audioContext = audioContextRef.current;
+
+    if (!analyserRef.current) {
+      analyserRef.current = audioContext.createAnalyser();
+      analyserRef.current.fftSize = 256;
+    }
+    const analyser = analyserRef.current;
+
+    if (!sourceRef.current) {
+      sourceRef.current = audioContext.createMediaElementSource(audioRef.current);
+      sourceRef.current.connect(analyser);
+      analyser.connect(audioContext.destination);
+    }
+
+    const bufferLength = analyser.frequencyBinCount;
+    const dataArray = new Uint8Array(bufferLength);
+    const canvas = canvasRef.current;
+    const ctx = canvas.getContext("2d");
+    if (!ctx) return;
+
+    const draw = () => {
+      if (!isPlaying) return;
+
+      analyser.getByteFrequencyData(dataArray);
+      ctx.clearRect(0, 0, canvas.width, canvas.height);
+
+      const barWidth = canvas.width / bufferLength; // Fit bars within canvas width
+      const maxBarHeight = canvas.height * 0.9; // Scale bars relative to canvas height
+
+      let x = 0;
+      for (let i = 0; i < bufferLength; i++) {
+        const barHeight = (dataArray[i] / 255) * maxBarHeight; // Normalize height
+
+        ctx.fillStyle = `rgb(${barHeight + 100}, 50, 100)`;
+        ctx.fillRect(x, canvas.height - barHeight, barWidth, barHeight);
+        x += barWidth + 2; // Add spacing between bars
+      }
+
+      requestAnimationFrame(draw);
+    };
+
+    if (isPlaying) {
+      audioContext.resume();
+      draw();
+    }
+  }, [isPlaying]);
+
+  const togglePlay = () => {
+    const audio = audioRef.current;
+    if (!audio) return;
+
+    if (audio.paused) {
+      audio.play();
+      setIsPlaying(true);
+    } else {
+      audio.pause();
+      setIsPlaying(false);
+    }
+  };
+
+  return (
+    <div style={{ textAlign: "center" }}>
+      {audioSrc && <audio ref={audioRef} src={audioSrc} />}
+      <canvas ref={canvasRef} width={window.innerWidth * 0.7} height={150} style={{ background: "#111", borderRadius: "10px" }} />
+      <br />
+      <button onClick={togglePlay}>{isPlaying ? "Pause" : "Play"}</button>
+    </div>
+  );
+};
+
+export default AudioVisualizer;