feat: Record and send audio via Chrome microphone

fern/apis/fdr/definition/api/v1/read/type.yml

@@ -111,6 +111,7 @@ types:
   Base64Type:
     properties:
       default: optional<base64>
+      mimeType: optional<string>
 
   DateType:
     properties:

fern/apis/fdr/definition/api/v1/register/type.yml

@@ -111,6 +111,7 @@ types:
   Base64Type:
     properties:
       default: optional<base64>
+      mimeType: optional<string>
 
   DateType:
     properties:

packages/fern-docs/bundle/.gitignore

@@ -0,0 +1 @@
+.vercel

packages/fern-docs/ui/package.json

@@ -92,6 +92,7 @@
     "jotai-location": "^0.5.5",
     "jsonpath": "^1.1.1",
     "launchdarkly-react-client-sdk": "^3.6.0",
+    "lucide-react": "^0.460.0",
     "mdx-bundler": "^10.0.2",
     "mermaid": "^11.2.1",
     "moment": "^2.30.1",
@@ -122,6 +123,7 @@
     "unist-util-visit": "^5.0.0",
     "url-join": "5.0.0",
     "use-memo-one": "^1.1.3",
+    "webm-duration-fix": "^1.0.4",
     "zod": "^3.23.8"
   },
   "devDependencies": {

packages/fern-docs/ui/src/playground/form/PlaygroundAudioControls.tsx

@@ -0,0 +1,98 @@
+import { FernButton, FernButtonGroup } from "@fern-docs/components";
+import { Download, Octagon, Play } from "lucide-react";
+import { useEffect, useRef, useState } from "react";
+
+interface PlaygroundAudioControlsProps {
+  audioUrl: string | null;
+  fileName?: string;
+}
+
+export function PlaygroundAudioControls({
+  audioUrl,
+  fileName = "recording.webm",
+}: PlaygroundAudioControlsProps) {
+  const [isPlaying, setIsPlaying] = useState(false);
+  const [currentTime, setCurrentTime] = useState(0);
+  const [duration, setDuration] = useState(0);
+  const [isLoaded, setIsLoaded] = useState(false);
+  const audioRef = useRef<HTMLAudioElement | null>(null);
+
+  useEffect(() => {
+    if (audioRef.current) {
+      audioRef.current.onended = () => setIsPlaying(false);
+      audioRef.current.onloadedmetadata = () => {
+        const audioDuration = audioRef.current?.duration;
+        if (audioDuration && !isNaN(audioDuration) && isFinite(audioDuration)) {
+          setDuration(Math.round(audioDuration));
+          setIsLoaded(true);
+        }
+      };
+      audioRef.current.ontimeupdate = () => {
+        const currentTime = audioRef.current?.currentTime;
+        if (currentTime && !isNaN(currentTime) && isFinite(currentTime)) {
+          setCurrentTime(Math.round(currentTime));
+        }
+      };
+    }
+  }, []);
+
+  const formatTime = (seconds: number) => {
+    const mins = Math.floor(seconds / 60)
+      .toString()
+      .padStart(2, "0");
+    const secs = (seconds % 60).toString().padStart(2, "0");
+    return `${mins}:${secs}`;
+  };
+
+  const handlePlayPause = async () => {
+    if (!audioRef.current || !audioUrl) return;
+
+    if (isPlaying) {
+      audioRef.current.pause();
+      audioRef.current.currentTime = 0;
+      setCurrentTime(0);
+    } else {
+      await audioRef.current.play();
+    }
+    setIsPlaying(!isPlaying);
+  };
+
+  const handleDownload = () => {
+    if (!audioUrl) return;
+    const a = document.createElement("a");
+    a.href = audioUrl;
+    a.download = fileName;
+    document.body.appendChild(a);
+    a.click();
+    document.body.removeChild(a);
+  };
+
+  if (!audioUrl) return null;
+
+  return (
+    <div className="flex items-center gap-2">
+      <audio ref={audioRef} src={audioUrl} preload="metadata" />
+      {isLoaded && (
+        <span className="font-mono text-xs">
+          {`${formatTime(currentTime)}/${formatTime(duration)}`}
+        </span>
+      )}
+      <FernButtonGroup>
+        <FernButton
+          icon={isPlaying ? <Octagon /> : <Play />}
+          onClick={handlePlayPause}
+          size="small"
+          variant="minimal"
+          disabled={!audioUrl}
+        />
+        <FernButton
+          icon={<Download />}
+          onClick={handleDownload}
+          size="small"
+          variant="minimal"
+          disabled={!audioUrl}
+        />
+      </FernButtonGroup>
+    </div>
+  );
+}