feat(server): use generative ai api for transcript (#12569)

fix AI-151

packages/backend/server/src/__tests__/__snapshots__/copilot.e2e.ts.md

@@ -69,10 +69,10 @@ Generated by [AVA](https://avajs.dev).
 
     [
       {
-        actions: '[{"a":"A","s":30,"e":45,"t":"Hello, everyone."},{"a":"B","s":46,"e":70,"t":"Hi, thank you for joining the meeting today."}]',
+        actions: 'generate text to text',
         status: 'claimed',
-        summary: '[{"a":"A","s":30,"e":45,"t":"Hello, everyone."},{"a":"B","s":46,"e":70,"t":"Hi, thank you for joining the meeting today."}]',
-        title: '[{"a":"A","s":30,"e":45,"t":"Hello, everyone."},{"a":"B","s":46,"e":70,"t":"Hi, thank you for joining the meeting today."}]',
+        summary: 'generate text to text',
+        title: 'generate text to text',
         transcription: [
           {
             end: '00:00:45',
@@ -102,10 +102,10 @@ Generated by [AVA](https://avajs.dev).
 
     [
       {
-        actions: '[{"a":"A","s":30,"e":45,"t":"Hello, everyone."},{"a":"B","s":46,"e":70,"t":"Hi, thank you for joining the meeting today."}]',
+        actions: 'generate text to text',
         status: 'claimed',
-        summary: '[{"a":"A","s":30,"e":45,"t":"Hello, everyone."},{"a":"B","s":46,"e":70,"t":"Hi, thank you for joining the meeting today."}]',
-        title: '[{"a":"A","s":30,"e":45,"t":"Hello, everyone."},{"a":"B","s":46,"e":70,"t":"Hi, thank you for joining the meeting today."}]',
+        summary: 'generate text to text',
+        title: 'generate text to text',
         transcription: [
           {
             end: '00:00:45',

packages/backend/server/src/__tests__/copilot-provider.spec.ts

@@ -6,7 +6,10 @@ import { AuthService } from '../core/auth';
 import { QuotaModule } from '../core/quota';
 import { CopilotModule } from '../plugins/copilot';
 import { prompts, PromptService } from '../plugins/copilot/prompt';
-import { CopilotProviderFactory } from '../plugins/copilot/providers';
+import {
+  CopilotProviderFactory,
+  CopilotProviderType,
+} from '../plugins/copilot/providers';
 import { TranscriptionResponseSchema } from '../plugins/copilot/transcript/types';
 import {
   CopilotChatTextExecutor,
@@ -183,11 +186,18 @@ const checkUrl = (url: string) => {
 const retry = async (
   action: string,
   t: ExecutionContext<Tester>,
-  callback: (t: ExecutionContext<Tester>) => void
+  callback: (t: ExecutionContext<Tester>) => Promise<void>
 ) => {
   let i = 3;
   while (i--) {
-    const ret = await t.try(callback);
+    const ret = await t.try(async t => {
+      try {
+        await callback(t);
+      } catch (e) {
+        t.log(`Error during ${action}:`, e);
+        throw e;
+      }
+    });
     if (ret.passed) {
       return ret.commit();
     } else {
@@ -343,6 +353,7 @@ const actions = [
       });
     },
     type: 'structured' as const,
+    prefer: CopilotProviderType.Gemini,
   },
   {
     name: 'Should transcribe middle audio',
@@ -365,6 +376,7 @@ const actions = [
       });
     },
     type: 'structured' as const,
+    prefer: CopilotProviderType.Gemini,
   },
   {
     name: 'Should transcribe long audio',
@@ -387,6 +399,7 @@ const actions = [
       });
     },
     type: 'structured' as const,
+    prefer: CopilotProviderType.Gemini,
   },
   {
     promptName: [
@@ -554,7 +567,15 @@ const actions = [
   },
 ];
 
-for (const { name, promptName, messages, verifier, type, config } of actions) {
+for (const {
+  name,
+  promptName,
+  messages,
+  verifier,
+  type,
+  config,
+  prefer,
+} of actions) {
   const prompts = Array.isArray(promptName) ? promptName : [promptName];
   for (const promptName of prompts) {
     test(
@@ -564,7 +585,9 @@ for (const { name, promptName, messages, verifier, type, config } of actions) {
         const { factory, prompt: promptService } = t.context;
         const prompt = (await promptService.get(promptName))!;
         t.truthy(prompt, 'should have prompt');
-        const provider = (await factory.getProviderByModel(prompt.model))!;
+        const provider = (await factory.getProviderByModel(prompt.model, {
+          prefer,
+        }))!;
         t.truthy(provider, 'should have provider');
         await retry(`action: ${promptName}`, t, async t => {
           switch (type) {

packages/backend/server/src/__tests__/copilot.e2e.ts

@@ -19,6 +19,7 @@ import { MockEmbeddingClient } from '../plugins/copilot/context/embedding';
 import { prompts, PromptService } from '../plugins/copilot/prompt';
 import {
   CopilotProviderFactory,
+  CopilotProviderType,
   GeminiGenerativeProvider,
   OpenAIProvider,
 } from '../plugins/copilot/providers';
@@ -79,7 +80,7 @@ test.before(async t => {
           providers: {
             openai: { apiKey: '1' },
             fal: {},
-            perplexity: {},
+            gemini: { apiKey: '1' },
           },
           unsplash: {
             key: process.env.UNSPLASH_ACCESS_KEY || '1',
@@ -101,7 +102,10 @@ test.before(async t => {
       });
       m.overrideProvider(OpenAIProvider).useClass(MockCopilotProvider);
       m.overrideProvider(GeminiGenerativeProvider).useClass(
-        MockCopilotProvider
+        class MockGenerativeProvider extends MockCopilotProvider {
+          // @ts-expect-error
+          override type: CopilotProviderType = CopilotProviderType.Gemini;
+        }
       );
     },
   });

packages/backend/server/src/plugins/copilot/transcript/service.ts

@@ -18,6 +18,7 @@ import { PromptService } from '../prompt';
 import {
   CopilotProvider,
   CopilotProviderFactory,
+  CopilotProviderType,
   ModelOutputType,
   PromptMessage,
 } from '../providers';
@@ -156,14 +157,18 @@ export class CopilotTranscriptionService {
 
   private async getProvider(
     modelId: string,
-    structured: boolean
+    structured: boolean,
+    prefer?: CopilotProviderType
   ): Promise<CopilotProvider> {
-    let provider = await this.providerFactory.getProvider({
-      outputType: structured
-        ? ModelOutputType.Structured
-        : ModelOutputType.Text,
-      modelId,
-    });
+    let provider = await this.providerFactory.getProvider(
+      {
+        outputType: structured
+          ? ModelOutputType.Structured
+          : ModelOutputType.Text,
+        modelId,
+      },
+      { prefer }
+    );
 
     if (!provider) {
       throw new NoCopilotProviderAvailable();
@@ -175,7 +180,8 @@ export class CopilotTranscriptionService {
   private async chatWithPrompt(
     promptName: string,
     message: Partial<PromptMessage>,
-    schema?: ZodType<any>
+    schema?: ZodType<any>,
+    prefer?: CopilotProviderType
   ): Promise<string> {
     const prompt = await this.prompt.get(promptName);
     if (!prompt) {
@@ -186,7 +192,7 @@ export class CopilotTranscriptionService {
     const msg = { role: 'user' as const, content: '', ...message };
     const config = Object.assign({}, prompt.config);
     if (schema) {
-      const provider = await this.getProvider(prompt.model, true);
+      const provider = await this.getProvider(prompt.model, true, prefer);
       return provider.structure(
         cond,
         [...prompt.finish({ schema }), msg],
@@ -226,13 +232,12 @@ export class CopilotTranscriptionService {
   }
 
   private async callTranscript(url: string, mimeType: string, offset: number) {
+    // NOTE: Vertex provider not support transcription yet, we always use Gemini here
     const result = await this.chatWithPrompt(
       'Transcript audio',
-      {
-        attachments: [url],
-        params: { mimetype: mimeType },
-      },
-      TranscriptionResponseSchema
+      { attachments: [url], params: { mimetype: mimeType } },
+      TranscriptionResponseSchema,
+      CopilotProviderType.Gemini
     );
 
     const transcription = TranscriptionResponseSchema.parse(