AFFiNE/packages/backend/server/tests/utils/copilot.ts

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import { randomBytes } from 'node:crypto';
import { INestApplication } from '@nestjs/common';
import request from 'supertest';
import {
DEFAULT_DIMENSIONS,
OpenAIProvider,
} from '../../src/plugins/copilot/providers/openai';
import {
CopilotCapability,
CopilotImageToImageProvider,
CopilotImageToTextProvider,
CopilotProviderType,
CopilotTextToEmbeddingProvider,
CopilotTextToImageProvider,
CopilotTextToTextProvider,
PromptMessage,
} from '../../src/plugins/copilot/types';
import { gql } from './common';
import { handleGraphQLError } from './utils';
export class MockCopilotTestProvider
extends OpenAIProvider
implements
CopilotTextToTextProvider,
CopilotTextToEmbeddingProvider,
CopilotTextToImageProvider,
CopilotImageToImageProvider,
CopilotImageToTextProvider
{
override readonly availableModels = ['test'];
static override readonly capabilities = [
CopilotCapability.TextToText,
CopilotCapability.TextToEmbedding,
CopilotCapability.TextToImage,
CopilotCapability.ImageToImage,
CopilotCapability.ImageToText,
];
override get type(): CopilotProviderType {
return CopilotProviderType.Test;
}
override getCapabilities(): CopilotCapability[] {
return MockCopilotTestProvider.capabilities;
}
override isModelAvailable(model: string): boolean {
return this.availableModels.includes(model);
}
// ====== text to text ======
override async generateText(
messages: PromptMessage[],
model: string = 'test',
_options: {
temperature?: number;
maxTokens?: number;
signal?: AbortSignal;
user?: string;
} = {}
): Promise<string> {
this.checkParams({ messages, model });
return 'generate text to text';
}
override async *generateTextStream(
messages: PromptMessage[],
model: string = 'gpt-3.5-turbo',
options: {
temperature?: number;
maxTokens?: number;
signal?: AbortSignal;
user?: string;
} = {}
): AsyncIterable<string> {
this.checkParams({ messages, model });
const result = 'generate text to text stream';
for await (const message of result) {
yield message;
if (options.signal?.aborted) {
break;
}
}
}
// ====== text to embedding ======
override async generateEmbedding(
messages: string | string[],
model: string,
options: {
dimensions: number;
signal?: AbortSignal;
user?: string;
} = { dimensions: DEFAULT_DIMENSIONS }
): Promise<number[][]> {
messages = Array.isArray(messages) ? messages : [messages];
this.checkParams({ embeddings: messages, model });
return [Array.from(randomBytes(options.dimensions)).map(v => v % 128)];
}
// ====== text to image ======
override async generateImages(
messages: PromptMessage[],
_model: string = 'test',
_options: {
signal?: AbortSignal;
user?: string;
} = {}
): Promise<Array<string>> {
const { content: prompt } = messages.pop() || {};
if (!prompt) {
throw new Error('Prompt is required');
}
return ['https://example.com/image.jpg'];
}
override async *generateImagesStream(
messages: PromptMessage[],
model: string = 'dall-e-3',
options: {
signal?: AbortSignal;
user?: string;
} = {}
): AsyncIterable<string> {
const ret = await this.generateImages(messages, model, options);
for (const url of ret) {
yield url;
}
}
}
export async function createCopilotSession(
app: INestApplication,
userToken: string,
workspaceId: string,
docId: string,
promptName: string
): Promise<string> {
const res = await request(app.getHttpServer())
.post(gql)
.auth(userToken, { type: 'bearer' })
.set({ 'x-request-id': 'test', 'x-operation-name': 'test' })
.send({
query: `
mutation createCopilotSession($options: CreateChatSessionInput!) {
createCopilotSession(options: $options)
}
`,
variables: { options: { workspaceId, docId, promptName } },
})
.expect(200);
handleGraphQLError(res);
return res.body.data.createCopilotSession;
}
export async function createCopilotMessage(
app: INestApplication,
userToken: string,
sessionId: string,
content?: string,
attachments?: string[],
blobs?: ArrayBuffer[],
params?: Record<string, string>
): Promise<string> {
const res = await request(app.getHttpServer())
.post(gql)
.auth(userToken, { type: 'bearer' })
.set({ 'x-request-id': 'test', 'x-operation-name': 'test' })
.send({
query: `
mutation createCopilotMessage($options: CreateChatMessageInput!) {
createCopilotMessage(options: $options)
}
`,
variables: {
options: { sessionId, content, attachments, blobs, params },
},
})
.expect(200);
handleGraphQLError(res);
return res.body.data.createCopilotMessage;
}
export async function chatWithText(
app: INestApplication,
userToken: string,
sessionId: string,
messageId: string,
prefix = ''
): Promise<string> {
const res = await request(app.getHttpServer())
.get(`/api/copilot/chat/${sessionId}${prefix}?messageId=${messageId}`)
.auth(userToken, { type: 'bearer' })
.expect(200);
return res.text;
}
export async function chatWithTextStream(
app: INestApplication,
userToken: string,
sessionId: string,
messageId: string
) {
return chatWithText(app, userToken, sessionId, messageId, '/stream');
}
export async function chatWithImages(
app: INestApplication,
userToken: string,
sessionId: string,
messageId: string
) {
return chatWithText(app, userToken, sessionId, messageId, '/images');
}
export function textToEventStream(
content: string | string[],
id: string,
event = 'message'
): string {
return (
Array.from(content)
.map(x => `\nevent: ${event}\nid: ${id}\ndata: ${x}`)
.join('\n') + '\n\n'
);
}
type ChatMessage = {
role: string;
content: string;
attachments: string[] | null;
createdAt: string;
};
type History = {
sessionId: string;
tokens: number;
action: string | null;
createdAt: string;
messages: ChatMessage[];
};
export async function getHistories(
app: INestApplication,
userToken: string,
variables: {
workspaceId: string;
docId?: string;
options?: {
sessionId?: string;
action?: boolean;
limit?: number;
skip?: number;
};
}
): Promise<History[]> {
const res = await request(app.getHttpServer())
.post(gql)
.auth(userToken, { type: 'bearer' })
.set({ 'x-request-id': 'test', 'x-operation-name': 'test' })
.send({
query: `
query getCopilotHistories(
$workspaceId: String!
$docId: String
$options: QueryChatHistoriesInput
) {
currentUser {
copilot(workspaceId: $workspaceId) {
histories(docId: $docId, options: $options) {
sessionId
tokens
action
createdAt
messages {
role
content
attachments
createdAt
}
}
}
}
}
`,
variables,
})
.expect(200);
handleGraphQLError(res);
return res.body.data.currentUser?.copilot?.histories || [];
}