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import { base } from "$app/paths";
import { PUBLIC_ORIGIN, PUBLIC_SHARE_PREFIX } from "$env/static/public";
import { authCondition } from "$lib/server/auth";
import { collections } from "$lib/server/database";
import type { SharedConversation } from "$lib/types/SharedConversation";
import { sha256 } from "$lib/utils/sha256";
import { error } from "@sveltejs/kit";
import { ObjectId } from "mongodb";
import { nanoid } from "nanoid";
export async function POST({ params, url, locals }) {
const conversation = await collections.conversations.findOne({
_id: new ObjectId(params.id),
...authCondition(locals),
});
if (!conversation) {
throw error(404, "Conversation not found");
}
const hash = await sha256(JSON.stringify(conversation.messages));
const existingShare = await collections.sharedConversations.findOne({ hash });
if (existingShare) {
return new Response(
JSON.stringify({
url: getShareUrl(url, existingShare._id),
}),
{ headers: { "Content-Type": "application/json" } }
);
}
const shared: SharedConversation = {
_id: nanoid(7),
createdAt: new Date(),
messages: conversation.messages,
hash,
updatedAt: new Date(),
title: conversation.title,
model: conversation.model,
};
await collections.sharedConversations.insertOne(shared);
return new Response(
JSON.stringify({
url: getShareUrl(url, shared._id),
}),
{ headers: { "Content-Type": "application/json" } }
);
}
function getShareUrl(url: URL, shareId: string): string {
return `${PUBLIC_SHARE_PREFIX || `${PUBLIC_ORIGIN || url.origin}${base}`}/r/${shareId}`;
}
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