Files
veridian/server/api/topic/[topicId]/auto-rename/index.post.ts

316 lines
9.8 KiB
TypeScript

import * as z from 'zod';
import { renamePrompt } from '~~/prompts';
import { generateText, type UserContent } from "ai";
import { nanoid } from "nanoid";
import { resolveFileUrl } from "~~/utils/url";
import { generateFileToken } from "~~/server/utils/file-token";
import { GatewayFetchError, getProviderDetails, type ModelGateway } from '~~/server/utils/ai-provider';
import { addPendingRename, completeRename } from "~~/server/utils/renames";
import { userEvents } from '~~/server/utils/events';
import { db } from '~~/server/lib/db';
import { type Model } from '~/composables/useModels';
import { topics } from '~~/drizzle/schema';
import { and, eq, gt, isNull, lte, or } from "drizzle-orm";
export default defineEventHandler(async (event) => {
await protectRoute(event);
const userId = event.context.user!.id;
const topicId = getRouterParam(event, 'topicId')!;
const result = await readValidatedBody(event, (body) =>
z
.object({
modelId: z.string(),
providerApiKey: z.string().optional(),
})
.safeParse(body),
);
if (!result.success) {
throw createError({
statusCode: 400,
message: result.error.issues[0]!.message,
data: {
code: 'INVALID_BODY',
ok: false,
}
});
}
const firstMessage = await db.query.messages.findFirst({
where: {
topicId,
userId,
},
orderBy: {
createdAt: 'asc',
},
with: {
parts: true,
attachments: {
with: {
file: true,
}
},
},
});
if (firstMessage === undefined) {
throw createError({
statusCode: 400,
statusMessage: 'Invalid topic',
data: {
code: 'INVALID_TOPIC',
ok: false,
}
});
}
if (firstMessage.role !== 'user') {
throw createError({
statusCode: 400,
statusMessage: 'Unimplemented',
data: {
code: 'INVALID_TOPIC',
ok: false,
}
});
}
const { modelId, providerApiKey } = result.data;
const topic = await db.query.topics.findFirst({
where: {
id: topicId,
userId,
},
});
if (topic === undefined || topic.userId !== userId) {
throw createError({
statusCode: 400,
statusMessage: 'Invalid topic',
data: {
code: 'INVALID_TOPIC',
ok: false,
}
});
}
if (topic.renaming && topic.renameExpiresAt && topic.renameExpiresAt > new Date()) {
throw createError({
statusCode: 400,
statusMessage: 'Already renaming',
data: {
code: 'ALREADY_RENAMING',
ok: false,
}
});
}
const model = await db.query.models.findFirst({
where: {
id: modelId,
userId,
},
with: {
provider: true,
},
});
if (model === undefined || model.userId !== userId) {
throw createError({
statusCode: 400,
statusMessage: 'Invalid model',
data: {
code: 'INVALID_MODEL',
ok: false,
}
});
}
const providerDetails = await getProviderDetails(model.provider, providerApiKey, model);
if (!providerDetails.ok) {
switch (providerDetails.error) {
case GatewayFetchError.NoProviderApiKey: {
setResponseStatus(event, 400, "No provider API key");
throw createError({
statusCode: 400,
statusMessage: `${model.provider.type} provider requires an API key`,
data: {
code: 'NO_PROVIDER_API_KEY',
ok: false,
}
});
}
case GatewayFetchError.NoProviderBaseUrl: {
throw createError({
statusCode: 400,
statusMessage: 'Invalid provider URL',
data: {
code: 'BAD_PROVIDER_URL',
ok: false,
}
});
}
}
}
const { gateway } = providerDetails.data;
if (gateway === null) {
throw createError({
statusCode: 500,
statusMessage: 'Invalid gateway',
data: {
code: 'INVALID_GATEWAY',
ok: false,
}
});
}
const content: UserContent = [{
type: "text",
text: [firstMessage.content || "Describe the attached content.",
...firstMessage.attachments.map(({ file }) => `Attachment: ${file.name}`),
].join("\n").slice(0, 12000),
}];
if (model.inputModalities.includes("image")) {
const images = firstMessage.attachments.filter(({ file }) =>
file.mimeType.startsWith("image/") && file.size <= 10 * 1024 * 1024,
).slice(0, 2);
for (const { file } of images) {
const url = new URL(resolveFileUrl(file.url));
if (file.url.startsWith("/api/files/")) {
const secret = process.env.BETTER_AUTH_SECRET;
if (!secret) {
continue;
}
const { exp, sig } = generateFileToken(file.url.slice("/api/files/".length), secret);
url.searchParams.set("exp", String(exp));
url.searchParams.set("sig", sig);
}
content.push({ type: "image", image: url, mediaType: file.mimeType });
}
}
const attemptId = nanoid();
const claimed = await db.update(topics).set({
renaming: true,
renameAttemptId: attemptId,
renameExpiresAt: new Date(Date.now() + 90000),
}).where(and(
eq(topics.id, topicId),
eq(topics.userId, userId),
eq(topics.name, topic.name),
or(eq(topics.renaming, false), isNull(topics.renameExpiresAt), lte(topics.renameExpiresAt, new Date())),
)).returning({ id: topics.id });
if (claimed.length === 0) {
return { ok: false as const, code: "ALREADY_RENAMING" };
}
userEvents.emit(userId, "topics", {
op: "update", payload: { topicId, renaming: true },
});
const abortController = addPendingRename(topicId, attemptId);
event.waitUntil(autoRename(topicId, attemptId, abortController, { gateway: gateway.gateway, model }, gateway.textTransformer, content, userId));
return {
ok: true as const,
};
});
const autoRename = async (
topicId: string,
attemptId: string,
abortController: AbortController,
model: {
gateway: ModelGateway,
model: Model,
},
textTransformer: ((text: string) => string) | ((text: string) => string)[] | undefined,
content: UserContent,
userId: string,
) => {
const deadline = setTimeout(() => abortController.abort(), 90000);
try {
const response = await generateText({
model: model.gateway(model.model.externalId),
providerOptions: {
openrouter: {
user: userId,
}
},
system: renamePrompt,
messages: [{ role: "user", content }],
maxRetries: 0,
timeout: 90 * 1000,
abortSignal: abortController.signal,
});
let text = response.text;
if (textTransformer !== undefined) {
if (Array.isArray(textTransformer)) {
for (const transformer of textTransformer) {
text = transformer(text);
}
} else {
text = textTransformer(text);
}
}
text = text.trim().replace(/^['"]|['"]$/g, "").split("\n")[0]?.trim().slice(0, 120) || "";
if (!text || abortController.signal.aborted) {
return;
}
const updated = await db.update(topics).set({
renaming: false,
renameAttemptId: null,
renameExpiresAt: null,
titleSource: "generated",
name: text,
}).where(and(
eq(topics.id, topicId),
eq(topics.renameAttemptId, attemptId),
gt(topics.renameExpiresAt, new Date()),
)).returning({ id: topics.id });
if (updated.length === 0) {
return;
}
userEvents.emit(model.model.userId, 'topics', {
op: 'update',
payload: {
topicId,
name: text,
titleSource: "generated",
renaming: false,
},
});
topicEvents.emit(topicId, {
type: 'topic_updated',
payload: {
topicId,
name: text,
titleSource: "generated",
renaming: false,
},
});
} catch (error) {
if (!abortController.signal.aborted) {
console.error("Failed to auto-rename:", error);
}
} finally {
clearTimeout(deadline);
completeRename(topicId, attemptId);
const cleared = await db.update(topics).set({
renaming: false,
renameAttemptId: null,
renameExpiresAt: null,
}).where(and(eq(topics.id, topicId), eq(topics.renameAttemptId, attemptId))).returning({ id: topics.id });
if (cleared.length > 0) {
const payload = { topicId, renaming: false };
userEvents.emit(userId, "topics", { op: "update", payload });
topicEvents.emit(topicId, { type: "topic_updated", payload });
}
}
}