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import { FormEvent, useEffect, useState } from "react";
import { useMutation, useQuery } from "convex/react";
import { api } from "../convex/_generated/api";
export default function App() {
const messages = useQuery(api.messages.list);
const sendMessage = useMutation(api.messages.send);
const [newMessageText, setNewMessageText] = useState("");
const [name, setName] = useState("user");
useEffect(() => {
setName("User " + Math.floor(Math.random() * 10000));
}, []);
async function handleSendMessage(event: FormEvent) {
event.preventDefault();
setNewMessageText("");
await sendMessage({ body: newMessageText, author: name });
}
return (
<main>
<h1>Convex Chat</h1>
<p className="badge">
<span>{name}</span>
</p>
<ul>
{messages?.map((message) => (
<li key={message._id.toString()}>
<span>{message.author}:</span>
<span>{message.body}</span>
<span>{new Date(message._creationTime).toLocaleTimeString()}</span>
</li>
))}
</ul>
<form onSubmit={handleSendMessage}>
<input
value={newMessageText}
onChange={(event) => setNewMessageText(event.target.value)}
placeholder="Write a message…"
/>
<input type="submit" value="Send" disabled={!newMessageText} />
</form>
</main>
);
}
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