refactor: cleanup auto-rename code

server/api/auto-rename/[topicId].post.ts

@@ -0,0 +1,142 @@
+import * as z from 'zod';
+import { httpClient } from '~~/server/lib/triplit';
+import { renamePrompt } from '~~/prompts';
+import { schema } from '~~/triplit/schema';
+import { type Entity } from '@triplit/client';
+import { generateText } from 'ai';
+import { GatewayFetchError, getProviderDetails, type ModelGateway } from '~~/server/utils/ai-provider';
+import { addPendingRename } from '~~/server/utils/renames';
+import { assert } from '~~/utils/assert';
+
+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(),
+                prompt: 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 { modelId, prompt, providerApiKey } = result.data;
+
+    const model = await httpClient.fetchOne(httpClient.query('models').Where('id', '=', modelId).Include('provider'));
+    if (model === null || model.providerId !== model.providerId || model.userId !== userId || model.provider === null) {
+        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 [renameId, pendingRename] = addPendingRename(topicId);
+    event.waitUntil(autoRename(topicId, renameId, pendingRename.abortController, { gateway: gateway.gateway, model }, gateway.textTransformer, prompt));
+
+    return {
+        renameId,
+        ok: true,
+    };
+});
+
+const autoRename = async (
+    topicId: string,
+    renameId: string,
+    abortController: AbortController,
+    model: {
+        gateway: ModelGateway,
+        model: Entity<typeof schema, 'models'>,
+    },
+    textTransformer: ((text: string) => string) | ((text: string) => string)[] | undefined,
+    prompt: string,
+) => {
+    try {
+        const response = await generateText({
+            model: model.gateway(model.model.externalId),
+            system: renamePrompt,
+            prompt,
+            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);
+            }
+        }
+
+        await httpClient.update('topics', topicId, {
+            name: text,
+        });
+    } catch (error) {
+        console.error('Failed to auto-rename:', error);
+    } finally {
+        completeRename(renameId);
+        await httpClient.update('topics', topicId, {
+            renaming: false
+        });
+    }
+}

server/api/auto-rename/cancel.post.ts

@@ -0,0 +1,42 @@
+import * as z from 'zod';
+import { httpClient } from '~~/server/lib/triplit';
+import { cancelPendingRename } from '~~/server/utils/renames';
+import { assert } from '~~/utils/assert';
+
+export default defineEventHandler(async (event) => {
+    await protectRoute(event);
+
+    const body = await readValidatedBody(event, (body) =>
+        z
+            .object({
+                renameId: z.string(),
+            })
+            .safeParse(body),
+    );
+    if (!body.success) {
+        throw createError({
+            statusCode: 400,
+            message: 'Invalid rename ID',
+        });
+    }
+    const { renameId } = body.data;
+    assert(renameId);
+
+    const [success, pendingRename] = cancelPendingRename(renameId);
+    if (success) {
+        const topic = await httpClient.fetchOne(httpClient.query('topics').Where('id', '=', pendingRename!.topicId));
+        if (topic !== null && topic.renaming) {
+            await httpClient.update('topics', topic.id, {
+                renaming: false,
+            });
+        }
+
+        return {
+            ok: true,
+        };
+    }
+
+    return {
+        ok: false,
+    };
+});