llama-stack-mirror/llama_stack/ui/components/chat-playground/message-input.tsx
2025-08-14 15:58:43 -06:00

467 lines
13 KiB
TypeScript

"use client";
import React, { useEffect, useRef, useState } from "react";
import { AnimatePresence, motion } from "framer-motion";
import { ArrowUp, Info, Loader2, Mic, Paperclip, Square } from "lucide-react";
import { omit } from "remeda";
import { cn } from "@/lib/utils";
import { useAudioRecording } from "@/hooks/use-audio-recording";
import { useAutosizeTextArea } from "@/hooks/use-autosize-textarea";
import { AudioVisualizer } from "@/components/ui/audio-visualizer";
import { Button } from "@/components/ui/button";
import { FilePreview } from "@/components/ui/file-preview";
import { InterruptPrompt } from "@/components/chat-playground/interrupt-prompt";
interface MessageInputBaseProps
extends React.TextareaHTMLAttributes<HTMLTextAreaElement> {
value: string;
submitOnEnter?: boolean;
stop?: () => void;
isGenerating: boolean;
enableInterrupt?: boolean;
transcribeAudio?: (blob: Blob) => Promise<string>;
}
interface MessageInputWithoutAttachmentProps extends MessageInputBaseProps {
allowAttachments?: false;
}
interface MessageInputWithAttachmentsProps extends MessageInputBaseProps {
allowAttachments: true;
files: File[] | null;
setFiles: React.Dispatch<React.SetStateAction<File[] | null>>;
}
type MessageInputProps =
| MessageInputWithoutAttachmentProps
| MessageInputWithAttachmentsProps;
export function MessageInput({
placeholder = "Ask AI...",
className,
onKeyDown: onKeyDownProp,
submitOnEnter = true,
stop,
isGenerating,
enableInterrupt = true,
transcribeAudio,
...props
}: MessageInputProps) {
const [isDragging, setIsDragging] = useState(false);
const [showInterruptPrompt, setShowInterruptPrompt] = useState(false);
const {
isListening,
isSpeechSupported,
isRecording,
isTranscribing,
audioStream,
toggleListening,
stopRecording,
} = useAudioRecording({
transcribeAudio,
onTranscriptionComplete: text => {
props.onChange?.({
target: { value: text },
} as React.ChangeEvent<HTMLTextAreaElement>);
},
});
useEffect(() => {
if (!isGenerating) {
setShowInterruptPrompt(false);
}
}, [isGenerating]);
const addFiles = (files: File[] | null) => {
if (props.allowAttachments) {
props.setFiles(currentFiles => {
if (currentFiles === null) {
return files;
}
if (files === null) {
return currentFiles;
}
return [...currentFiles, ...files];
});
}
};
const onDragOver = (event: React.DragEvent) => {
if (props.allowAttachments !== true) return;
event.preventDefault();
setIsDragging(true);
};
const onDragLeave = (event: React.DragEvent) => {
if (props.allowAttachments !== true) return;
event.preventDefault();
setIsDragging(false);
};
const onDrop = (event: React.DragEvent) => {
setIsDragging(false);
if (props.allowAttachments !== true) return;
event.preventDefault();
const dataTransfer = event.dataTransfer;
if (dataTransfer.files.length) {
addFiles(Array.from(dataTransfer.files));
}
};
const onPaste = (event: React.ClipboardEvent) => {
const items = event.clipboardData?.items;
if (!items) return;
const text = event.clipboardData.getData("text");
if (text && text.length > 500 && props.allowAttachments) {
event.preventDefault();
const blob = new Blob([text], { type: "text/plain" });
const file = new File([blob], "Pasted text", {
type: "text/plain",
lastModified: Date.now(),
});
addFiles([file]);
return;
}
const files = Array.from(items)
.map(item => item.getAsFile())
.filter(file => file !== null);
if (props.allowAttachments && files.length > 0) {
addFiles(files);
}
};
const onKeyDown = (event: React.KeyboardEvent<HTMLTextAreaElement>) => {
if (submitOnEnter && event.key === "Enter" && !event.shiftKey) {
event.preventDefault();
if (isGenerating && stop && enableInterrupt) {
if (showInterruptPrompt) {
stop();
setShowInterruptPrompt(false);
event.currentTarget.form?.requestSubmit();
} else if (
props.value ||
(props.allowAttachments && props.files?.length)
) {
setShowInterruptPrompt(true);
return;
}
}
event.currentTarget.form?.requestSubmit();
}
onKeyDownProp?.(event);
};
const textAreaRef = useRef<HTMLTextAreaElement>(null);
const [textAreaHeight, setTextAreaHeight] = useState<number>(0);
useEffect(() => {
if (textAreaRef.current) {
setTextAreaHeight(textAreaRef.current.offsetHeight);
}
}, [props.value]);
const showFileList =
props.allowAttachments && props.files && props.files.length > 0;
useAutosizeTextArea({
ref: textAreaRef,
maxHeight: 240,
borderWidth: 1,
dependencies: [props.value, showFileList],
});
return (
<div
className="relative flex w-full"
onDragOver={onDragOver}
onDragLeave={onDragLeave}
onDrop={onDrop}
>
{enableInterrupt && (
<InterruptPrompt
isOpen={showInterruptPrompt}
close={() => setShowInterruptPrompt(false)}
/>
)}
<RecordingPrompt
isVisible={isRecording}
onStopRecording={stopRecording}
/>
<div className="relative flex w-full items-center space-x-2">
<div className="relative flex-1">
<textarea
aria-label="Write your prompt here"
placeholder={placeholder}
ref={textAreaRef}
onPaste={onPaste}
onKeyDown={onKeyDown}
className={cn(
"z-10 w-full grow resize-none rounded-xl border border-input bg-background p-3 pr-24 text-sm ring-offset-background transition-[border] placeholder:text-muted-foreground focus-visible:border-primary focus-visible:outline-none disabled:cursor-not-allowed disabled:opacity-50",
showFileList && "pb-16",
className
)}
{...(props.allowAttachments
? omit(props, ["allowAttachments", "files", "setFiles"])
: omit(props, ["allowAttachments"]))}
/>
{props.allowAttachments && (
<div className="absolute inset-x-3 bottom-0 z-20 overflow-x-scroll py-3">
<div className="flex space-x-3">
<AnimatePresence mode="popLayout">
{props.files?.map(file => {
return (
<FilePreview
key={file.name + String(file.lastModified)}
file={file}
onRemove={() => {
props.setFiles(files => {
if (!files) return null;
const filtered = Array.from(files).filter(
f => f !== file
);
if (filtered.length === 0) return null;
return filtered;
});
}}
/>
);
})}
</AnimatePresence>
</div>
</div>
)}
</div>
</div>
<div className="absolute right-3 top-3 z-20 flex gap-2">
{props.allowAttachments && (
<Button
type="button"
size="icon"
variant="outline"
className="h-8 w-8"
aria-label="Attach a file"
disabled={true}
onClick={async () => {
const files = await showFileUploadDialog();
addFiles(files);
}}
>
<Paperclip className="h-4 w-4" />
</Button>
)}
{isSpeechSupported && (
<Button
type="button"
variant="outline"
className={cn("h-8 w-8", isListening && "text-primary")}
aria-label="Voice input"
size="icon"
onClick={toggleListening}
>
<Mic className="h-4 w-4" />
</Button>
)}
{isGenerating && stop ? (
<Button
type="button"
size="icon"
className="h-8 w-8"
aria-label="Stop generating"
onClick={stop}
>
<Square className="h-3 w-3 animate-pulse" fill="currentColor" />
</Button>
) : (
<Button
type="submit"
size="icon"
className="h-8 w-8 transition-opacity"
aria-label="Send message"
disabled={props.value === "" || isGenerating}
>
<ArrowUp className="h-5 w-5" />
</Button>
)}
</div>
{props.allowAttachments && <FileUploadOverlay isDragging={isDragging} />}
<RecordingControls
isRecording={isRecording}
isTranscribing={isTranscribing}
audioStream={audioStream}
textAreaHeight={textAreaHeight}
onStopRecording={stopRecording}
/>
</div>
);
}
MessageInput.displayName = "MessageInput";
interface FileUploadOverlayProps {
isDragging: boolean;
}
function FileUploadOverlay({ isDragging }: FileUploadOverlayProps) {
return (
<AnimatePresence>
{isDragging && (
<motion.div
className="pointer-events-none absolute inset-0 z-20 flex items-center justify-center space-x-2 rounded-xl border border-dashed border-border bg-background text-sm text-muted-foreground"
initial={{ opacity: 0 }}
animate={{ opacity: 1 }}
exit={{ opacity: 0 }}
transition={{ duration: 0.2 }}
aria-hidden
>
<Paperclip className="h-4 w-4" />
<span>Drop your files here to attach them.</span>
</motion.div>
)}
</AnimatePresence>
);
}
function showFileUploadDialog() {
const input = document.createElement("input");
input.type = "file";
input.multiple = true;
input.accept = "*/*";
input.click();
return new Promise<File[] | null>(resolve => {
input.onchange = e => {
const files = (e.currentTarget as HTMLInputElement).files;
if (files) {
resolve(Array.from(files));
return;
}
resolve(null);
};
});
}
function TranscribingOverlay() {
return (
<motion.div
className="flex h-full w-full flex-col items-center justify-center rounded-xl bg-background/80 backdrop-blur-sm"
initial={{ opacity: 0 }}
animate={{ opacity: 1 }}
exit={{ opacity: 0 }}
transition={{ duration: 0.2 }}
>
<div className="relative">
<Loader2 className="h-8 w-8 animate-spin text-primary" />
<motion.div
className="absolute inset-0 h-8 w-8 animate-pulse rounded-full bg-primary/20"
initial={{ scale: 0.8, opacity: 0 }}
animate={{ scale: 1.2, opacity: 1 }}
transition={{
duration: 1,
repeat: Infinity,
repeatType: "reverse",
ease: "easeInOut",
}}
/>
</div>
<p className="mt-4 text-sm font-medium text-muted-foreground">
Transcribing audio...
</p>
</motion.div>
);
}
interface RecordingPromptProps {
isVisible: boolean;
onStopRecording: () => void;
}
function RecordingPrompt({ isVisible, onStopRecording }: RecordingPromptProps) {
return (
<AnimatePresence>
{isVisible && (
<motion.div
initial={{ top: 0, filter: "blur(5px)" }}
animate={{
top: -40,
filter: "blur(0px)",
transition: {
type: "spring",
filter: { type: "tween" },
},
}}
exit={{ top: 0, filter: "blur(5px)" }}
className="absolute left-1/2 flex -translate-x-1/2 cursor-pointer overflow-hidden whitespace-nowrap rounded-full border bg-background py-1 text-center text-sm text-muted-foreground"
onClick={onStopRecording}
>
<span className="mx-2.5 flex items-center">
<Info className="mr-2 h-3 w-3" />
Click to finish recording
</span>
</motion.div>
)}
</AnimatePresence>
);
}
interface RecordingControlsProps {
isRecording: boolean;
isTranscribing: boolean;
audioStream: MediaStream | null;
textAreaHeight: number;
onStopRecording: () => void;
}
function RecordingControls({
isRecording,
isTranscribing,
audioStream,
textAreaHeight,
onStopRecording,
}: RecordingControlsProps) {
if (isRecording) {
return (
<div
className="absolute inset-[1px] z-50 overflow-hidden rounded-xl"
style={{ height: textAreaHeight - 2 }}
>
<AudioVisualizer
stream={audioStream}
isRecording={isRecording}
onClick={onStopRecording}
/>
</div>
);
}
if (isTranscribing) {
return (
<div
className="absolute inset-[1px] z-50 overflow-hidden rounded-xl"
style={{ height: textAreaHeight - 2 }}
>
<TranscribingOverlay />
</div>
);
}
return null;
}