pront1
You are given a task to integrate an existing React component in the codebase
The codebase should support:
- shadcn project structure
- Tailwind CSS
- Typescript
If it doesn't, provide instructions on how to setup project via shadcn CLI, install Tailwind or Typescript.
Determine the default path for components and styles.
If default path for components is not /components/ui, provide instructions on why it's important to create this folder
Copy-paste this component to /components/ui folder:
```tsx
v0-ai-chat.tsx
"use client";
import { useEffect, useRef, useCallback } from "react";
import { useState } from "react";
import { Textarea } from "@/components/ui/textarea";
import { cn } from "@/lib/utils";
import {
ImageIcon,
FileUp,
Figma,
MonitorIcon,
CircleUserRound,
ArrowUpIcon,
Paperclip,
PlusIcon,
} from "lucide-react";
interface UseAutoResizeTextareaProps {
minHeight: number;
maxHeight?: number;
}
function useAutoResizeTextarea({
minHeight,
maxHeight,
}: UseAutoResizeTextareaProps) {
const textareaRef = useRef(null);
const adjustHeight = useCallback(
(reset?: boolean) => {
const textarea = textareaRef.current;
if (!textarea) return;
if (reset) {
textarea.style.height = `${minHeight}px`;
return;
}
// Temporarily shrink to get the right scrollHeight
textarea.style.height = `${minHeight}px`;
// Calculate new height
const newHeight = Math.max(
minHeight,
Math.min(
textarea.scrollHeight,
maxHeight ?? Number.POSITIVE_INFINITY
)
);
textarea.style.height = `${newHeight}px`;
},
[minHeight, maxHeight]
);
useEffect(() => {
// Set initial height
const textarea = textareaRef.current;
if (textarea) {
textarea.style.height = `${minHeight}px`;
}
}, [minHeight]);
// Adjust height on window resize
useEffect(() => {
const handleResize = () => adjustHeight();
window.addEventListener("resize", handleResize);
return () => window.removeEventListener("resize", handleResize);
}, [adjustHeight]);
return { textareaRef, adjustHeight };
}
export function VercelV0Chat() {
const [value, setValue] = useState("");
const { textareaRef, adjustHeight } = useAutoResizeTextarea({
minHeight: 60,
maxHeight: 200,
});
const handleKeyDown = (e: React.KeyboardEvent) => {
if (e.key === "Enter" && !e.shiftKey) {
e.preventDefault();
if (value.trim()) {
setValue("");
adjustHeight(true);
}
}
};
return (