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import type { Conversation } from "$lib/types/Conversation";
import type { MessageFile } from "$lib/types/Message";
import { sha256 } from "$lib/utils/sha256";
import { fileTypeFromBuffer } from "file-type";
import { collections } from "$lib/server/database";
export async function uploadFile(file: File, conv: Conversation): Promise<MessageFile> {
const sha = await sha256(await file.text());
const buffer = await file.arrayBuffer();
// Attempt to detect the mime type of the file, fallback to the uploaded mime
const mime = await fileTypeFromBuffer(buffer).then((fileType) => fileType?.mime ?? file.type);
const upload = collections.bucket.openUploadStream(`${conv._id}-${sha}`, {
metadata: { conversation: conv._id.toString(), mime },
});
upload.write((await file.arrayBuffer()) as unknown as Buffer);
upload.end();
// only return the filename when upload throws a finish event or a 20s time out occurs
return new Promise((resolve, reject) => {
upload.once("finish", () =>
resolve({ type: "hash", value: sha, mime: file.type, name: file.name })
);
upload.once("error", reject);
setTimeout(() => reject(new Error("Upload timed out")), 20_000);
});
}
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